Machine learning predictions based on historical earnings data and price patterns
1-Day Prediction
+0.51%
$9.08
0% positive prob.
5-Day Prediction
-5.77%
$8.51
0% positive prob.
20-Day Prediction
-15.94%
$7.59
0% positive prob.
SEC 8-K filings with transcript text
Feb 19, 2026 · 100% conf.
1D
+0.51%
$9.08
Act: -0.11%
5D
-5.77%
$8.51
Act: -4.32%
20D
-15.94%
$7.59
prta-202602190001559053FALSE00015590532026-02-192026-02-19
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 19, 2026
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On February 19, 2026, Prothena Corporation plc issued a press release announcing its financial results for the fourth quarter and fiscal year ended December 31, 2025. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated February 19, 2026
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 19, 2026PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Nov 6, 2025
prta-202511060001559053FALSE00015590532025-11-062025-11-06
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 6, 2025
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On November 6, 2025, Prothena Corporation plc issued a press release announcing its financial results for the third quarter ended September 30, 2025. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated November 6, 2025
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: November 6, 2025PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Aug 4, 2025
prta-202508040001559053FALSE00015590532025-08-042025-08-04
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 4, 2025
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On August 4, 2025, Prothena Corporation plc issued a press release announcing its financial results for the second quarter ended June 30, 2025. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated August 4, 2025
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: August 4, 2025PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
May 8, 2025
prta-202505080001559053FALSE00015590532025-05-082025-05-08
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2025
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On May 8, 2025, Prothena Corporation plc issued a press release announcing its financial results for the first quarter ended March 31, 2025. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated May 8, 2025
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: May 8, 2025PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Feb 20, 2025
prta-202502200001559053FALSE00015590532025-02-202025-02-20
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 20, 2025
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On February 20, 2025, Prothena Corporation plc issued a press release announcing its financial results for the fourth quarter and fiscal year ended December 31, 2024. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated February 20, 2025
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 20, 2025PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Nov 12, 2024
prta-202411120001559053FALSE00015590532024-11-122024-11-12
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 12, 2024
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On November 12, 2024, Prothena Corporation plc issued a press release announcing its financial results for the third quarter ended September 30, 2024. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated November 12, 2024
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: November 12, 2024PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Aug 8, 2024
prta-202408080001559053FALSE00015590532024-08-082024-08-08
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2024
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On August 8, 2024, Prothena Corporation plc issued a press release announcing its financial results for the second quarter ended June 30, 2024. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated August 8, 2024
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: August 8, 2024PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
May 8, 2024
prta-202405080001559053FALSE00015590532024-05-082024-05-08
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 8, 2024
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On May 8, 2024, Prothena Corporation plc issued a press release announcing its financial results for the first quarter ended March 31, 2024. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated May 8, 2024
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: May 8, 2024PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Feb 15, 2024
prta-202402150001559053FALSE00015590532024-02-152024-02-15
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 15, 2024
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On February 15, 2024, Prothena Corporation plc issued a press release announcing its financial results for the fourth quarter and fiscal year ended December 31, 2023. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated February 15, 2024
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 15, 2024PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Jan 8, 2024
8-K
PROTHENA CORP PUBLIC LTD CO false 0001559053 0001559053 2024-01-08 2024-01-08
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 8, 2024
(Exact name of registrant as specified in its charter)
Ireland
001-35676
98-1111119
(State or Other Jurisdiction of Incorporation)
(Commission File Number)
(IRS Employer Identification No.)
77 Sir John Rogerson’s Quay, Block C
Grand Canal Docklands
Dublin 2, D02 VK60, Ireland
(Address of principal executive offices, including Zip Code) Registrant’s telephone number, including area code: 011-353-1-236-2500 (Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each Class
Trading Symbol
Name of Each Exchange on Which Registered
Ordinary Shares, par value $0.01 per share
The Nasdaq Global Select Market Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02. Results of Operations and Financial Condition.
In connection with the press release described in Item 8.01 below, on January 8, 2024, Prothena Corporation plc (the “Company”) announced that it expects to report cash, cash equivalents, and restricted cash of approximately $621 million as of December 31, 2023. This preliminary estimate is based on currently available information and does not present all necessary information for a complete understanding of the Company’s financial condition as of December 31, 2023, or the Company’s results of operations for the fourth quarter or year-ended December 31, 2023.
Item 8.01. Other Events.
On January 8, 2024, the Company issued a press release announcing certain business updates. A copy of that press release is attached as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01. Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.
Description
99.1
Press Release dated January 8, 2024
104
Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: January 8, 2024
By:
/s/ Tran B. Nguyen
Name:
Tran B. Nguyen
Title:
Chief Strategy Officer and Chief Financial Officer
Nov 2, 2023
prta-202311020001559053FALSE00015590532023-11-022023-11-02
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 2, 2023
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On November 2, 2023, Prothena Corporation plc issued a press release announcing its financial results for the third quarter ended September 30, 2023. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated November 2, 2023
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: November 2, 2023PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Aug 3, 2023
prta-202308030001559053FALSE00015590532023-08-032023-08-03
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 3, 2023
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On August 3, 2023, Prothena Corporation plc issued a press release announcing its financial results for the second quarter ended June 30, 2023. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated August 3, 2023
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: August 3, 2023PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
May 4, 2023
prta-202305040001559053FALSE00015590532023-05-042023-05-04
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 4, 2023
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On May 4, 2023, Prothena Corporation plc issued a press release announcing its financial results for the first quarter ended March 31, 2023. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated May 4, 2023
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: May 4, 2023PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Feb 23, 2023
prta-202302230001559053FALSE00015590532023-02-232023-02-23
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 23, 2023
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On February 23, 2023, Prothena Corporation plc issued a press release announcing its financial results for the fourth quarter and fiscal year ended December 31, 2022. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated February 23, 2023
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 23, 2023PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Nov 3, 2022
prta-202211030001559053FALSE00015590532022-11-032022-11-03
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 3, 2022
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On November 3, 2022, Prothena Corporation plc issued a press release announcing its financial results for the third quarter ended September 30, 2022. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated November 3, 2022
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: November 3, 2022PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Aug 8, 2022
prta-202208080001559053FALSE00015590532022-08-082022-08-08
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 8, 2022
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On August 8, 2022, Prothena Corporation plc issued a press release announcing its financial results for the second quarter ended June 30, 2022. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated August 8, 2022
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: August 8, 2022PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
May 5, 2022
prta-202205050001559053FALSE00015590532022-05-052022-05-05
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 5, 2022
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On May 5, 2022, Prothena Corporation plc issued a press release announcing its financial results for the first quarter ended March 31, 2022. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated May 5, 2022
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: May 5, 2022PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Feb 17, 2022
prta-202202170001559053FALSE00015590532022-02-172022-02-17
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 17, 2022
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On February 17, 2022, Prothena Corporation plc issued a press release announcing its financial results for the fourth quarter and fiscal year ended December 31, 2021. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated February 17, 2022
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: February 17, 2022PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Nov 4, 2021
prta-202111040001559053FALSE00015590532021-11-042021-11-04
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 4, 2021
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On November 4, 2021, Prothena Corporation plc issued a press release announcing its financial results for the third quarter ended September 30, 2021. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated November 4, 2021
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: November 4, 2021PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Financial Officer and Chief Strategy Officer
Aug 5, 2021
prta-202108050001559053FALSE00015590532021-08-052021-08-05
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 5, 2021
(Exact name of registrant as specified in its charter)
Ireland 001-35676 98-1111119 (State or Other Jurisdiction of Incorporation) (Commission File Number) (IRS Employer Identification No.)
77 Sir John Rogerson's Quay, Block C Grand Canal Docklands
Dublin 2, D02 VK60, Ireland (Address of principal executive offices, including Zip Code)
Registrant’s telephone number, including area code: 011-353-1-236-2500
(Former Name or Former Address, if Changed Since Last Report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of Each ClassTrading SymbolName of Each Exchange on Which Registered Ordinary Shares, par value $0.01 per sharePRTAThe Nasdaq Global Select Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Item 2.02.Results of Operations and Financial Condition.
The information in Item 2.02 of this Current Report on Form 8-K and Exhibit 99.1 attached hereto shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section. It may only be incorporated by reference in another filing under the Exchange Act or the Securities Act of 1933, as amended, if such subsequent filing specifically incorporate by reference the information furnished pursuant to Item 2.02 (including Exhibit 99.1) of this Current Report. On August 5, 2021, Prothena Corporation plc issued a press release announcing its financial results for the second quarter ended June 30, 2021. A copy of that press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated herein by reference.
Item 9.01.Financial Statements and Exhibits
(d) Exhibits.
Exhibit No.Description 99.1Press Release dated August 5, 2021
104Cover Page Interactive Data File (embedded within the Inline XBRL document)
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Date: August 5, 2021PROTHENA CORPORATION PLC
By: /s/ Tran B. Nguyen Name: Tran B. Nguyen Title: Chief Operating Officer and Chief Financial Officer
This page provides Prothena Corporation plc (PRTA) earnings call transcripts from SEC 8-K filings along with AI-powered predictions for post-earnings price movements. Our machine learning models analyze historical earnings data, pre-earnings price patterns, volume changes, and volatility to predict 1-day, 5-day, and 20-day returns after each earnings release.
Earnings transcripts are sourced directly from SEC EDGAR filings. Predictions are generated using gradient boosting models trained on PRTA's historical earnings reactions. All predicted returns are shown as percentages, and predicted prices are calculated from the closing price at the time of prediction. Past performance does not guarantee future results.