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EX-99.1

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EX-99.1

Exhibit 99.1

Neostellar Capital Corp. Reports Third Quarter 2026 Financial Results

Net Asset Value of $12.64 Per Share as of September 30, 2026

Board of Directors Approves Extension of Share Repurchase Program

NEW YORK, NY, November 3, 2026 (GLOBE NEWSWIRE) – Neostellar Capital Corp. (“Neostellar Capital”, the “Company”, “we”, “us”, and “our”) (Nasdaq: NSLR) today announced its financial results for the third quarter ended September 30, 2026. Net assets totaled approximately $334.7 million, or $12.64 per share, at September 30, 2026, as compared to $13.44 per share, at June 30, 2026 and $9.23 per share at September 30, 2025.

“During the third quarter, we formalized our partnership with Magnetar through Neostellar Advisors, expanding our resources for sourcing and due diligence and giving us greater flexibility to evaluate and structure investments,” said Mark Klein, Chairman and Chief Executive Officer of Neostellar Capital. “The partnership brings together our venture investing experience and Magnetar’s expertise in credit, structured capital and AI infrastructure at a time when private companies are seeking larger financings and a broader range of capital structures.”

“We continue to see significant opportunity across the computing and data infrastructure supporting broader AI adoption, reflected in our investments in OpenAI, ClickHouse, TensorWave and CoreWeave. Our approach remains focused on identifying promising businesses before their potential is widely recognized, with the understanding that successful investments can grow into significant portfolio positions over time. As those investments mature, we balance their remaining potential with opportunities to realize gains, manage concentration and deploy capital with a focus on long-term value per share. Consistent with that focus, the Board approved an extension of the Share Repurchase Program and remaining $25 million allocation, preserving repurchases as an option alongside new investments and other uses of capital, with deployment subject to liquidity considerations.”

Investment Portfolio as of September 30, 2026

At September 30, 2026, the Company held positions in 34 portfolio companies – 30 privately held and 4 publicly held – with an aggregate fair value of approximately $377.2 million. The Company’s top five portfolio company investments accounted for approximately 72% of the total portfolio at fair value as of September 30, 2026.

Top Five Investments as of September 30, 2026

Portfolio Company ($ in millions) Cost Basis Fair Value % of Total Portfolio

Whoop, Inc. $11.0 $143.3 38.0%

ARK Type One Deep Ventures Fund LLC(1) 17.9 59.4 15.8

IH10, LLC(2)

12.3 34.0 9.0

Magnetar Opportunity 2025-4 LP(3) 20.0 20.4 5.4

Blink Health, Inc. 15.0 13.1 3.5

Total(4)

$76.2 $270.3 71.7%

(1)ARK

Type One Deep Ventures Fund LLC is an investment fund for which the Class A Interest is solely invested in the Series A-2 Preferred Shares of OpenAI Group PBC. The Company is invested in the Series A-2 Preferred Shares of OpenAI Group PBC through its investment in the Class A Interest of ARK Type One Deep Ventures Fund LLC.

(2)IH10,

LLC’s sole portfolio asset is an interest in the Series B Preferred Shares of VAST Data, Ltd. through a special purpose vehicle (“SPV”). The Company is invested in the Series B Preferred Shares of VAST Data, Ltd. through its investment in the Membership Interest of IH10, LLC.

(3)Magnetar Opportunity 2025-4 LP is an SPV for which the Class A Interest and Class B Interest are invested in the Series B Preferred Shares of TensorWave, Inc. The Company is invested in Series B Preferred Shares of TensorWave, Inc. through its investments in the Class A Interest and Class B Interest of Magnetar Opportunity 2025-4 LP.

(4)Total may not sum due to rounding.

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Third Quarter 2026 Investment Portfolio Activity

During the three months ended September 30, 2026, the Company made the following investment:

Portfolio Company

Investment

Transaction Date

Amount(1)

Shogun Enterprises, Inc. (d/b/a Hearth)(2)

Common Shares

7/10/2026

<$0.1 million

(1)Amount invested does not include capitalized costs or prepaid expenses, if applicable.

(2)On July 10, 2026, the Company exercised 86,076 warrants and received 86,076 Common Shares of Shogun Enterprises, Inc. (d/b/a Hearth).

During the three months ended September 30, 2026, the Company exited and/or received proceeds from the following investments:

Portfolio Company

Transaction

Date

Quantity/

Initial Capital

Average Net Share Price(1)

Net

Proceeds

Realized

Gain/(Loss)

GrabAGun Digital Holdings Inc. - Common Shares(2)

Various 143,655 $3.12 $0.4 million $0.3 million

Aventine Property Group, Inc. 7/8/2026 312,500 $0.10 <$0.1 million $(2.5 million)

CW Opportunity 2 LP 8/21/2026 3.8% N/A $2.0 million $1.4 million(3)

Learneo, Inc. (f/k/a Course Hero, Inc.) 9/21/2026 2,421,168 $3.88 $9.4 million $(5.6 million)

CTN Holdings, Inc. (d/b/a Catona Climate,

EX-99.1

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EX-99.1

Exhibit 99.1

Neostellar Capital Corp. Reports Second Quarter 2026 Financial Results

An Affiliate of Magnetar Invested $20.0 Million in Neostellar Through a

Redeemable Promissory Note Subsequent to Quarter-End

Net Asset Value of $13.44 Per Share as of June 30, 2026

NEW YORK, NY, August 5, 2026 (GLOBE NEWSWIRE) – Neostellar Capital Corp. (“Neostellar Capital”, the “Company”, “we”, “us”, and “our”) (Nasdaq: NSLR) today announced its financial results for the second quarter ended June 30, 2026. Net assets totaled approximately $355.9 million, or $13.44 per share, at June 30, 2026, as compared to $14.24 per share, at March 31, 2026 and $9.18 per share at June 30, 2025.

“The second quarter was an important period for Neostellar Capital, marked by the completion of several meaningful investments and continued progress in the evolution of our platform,” said Mark Klein, Chairman and Chief Executive Officer of Neostellar Capital.

“Following quarter-end, we launched Neostellar Advisors with Magnetar and completed our transition to an externally managed structure. We believe the combination of our team’s private-market investment experience and Magnetar’s institutional resources broadens our sourcing capabilities, expands the range of structures we can evaluate, and strengthens our ability to pursue differentiated investment opportunities.”

“During the quarter, we funded the remaining $15 million of our $20 million commitment to TensorWave through a Magnetar special-purpose vehicle. The investment was completed in connection with TensorWave’s $350 million Series B financing, which was co-led by Magnetar and AMD Ventures. We believe TensorWave is well positioned to benefit from continued growth in demand for high-performance AI compute infrastructure as customers seek additional capacity, greater flexibility, and a more diversified hardware ecosystem.”

“We also completed an approximately $9.5 million investment in ClickHouse during the second quarter, expanding our exposure to the data infrastructure supporting AI and enterprise applications. ClickHouse provides high-performance analytical database software that enables customers to process and analyze large volumes of operational data in real time. We believe the company’s differentiated technology, meaningful commercial scale, and growing adoption across AI and enterprise workloads position it well for continued long-term growth.”

“These investments exemplify the opportunities we continue to pursue through the Neostellar platform,” Mr. Klein continued. “Artificial intelligence is driving significant investment across compute, data infrastructure, networking, software, cybersecurity, and power. We remain focused on identifying differentiated companies positioned to benefit from these structural trends.”

Mr. Klein concluded, “Our objective is not simply to own a collection of the largest private technology companies. We seek to identify exceptional businesses before they reach broader recognition and associated scale, and to invest on terms that we believe appropriately balance risk and return. We believe Neostellar’s expanded capabilities enhance our ability to pursue these opportunities while remaining focused on disciplined capital allocation and creating durable long-term value for our stockholders.”

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Investment Portfolio as of June 30, 2026

At June 30, 2026, the Company held positions in 37 portfolio companies – 34 privately held and 3 publicly held – with an aggregate fair value of approximately $405.9 million. The Company’s top five portfolio company investments accounted for approximately 69% of the total portfolio at fair value as of June 30, 2026.

Top Five Investments as of June 30, 2026

Portfolio Company ($ in millions) Cost Basis Fair Value % of Total Portfolio

Whoop, Inc. $11.0 $150.8 37.1%

ARK Type One Deep Ventures Fund LLC(1) 17.7 59.3 14.6

IH10, LLC(2)

12.3 34.0 8.4

Magnetar Opportunity 2025-4

LP(3)

20.0 20.2 5.0

Blink Health, Inc. 15.0 17.1 4.2

Total

$76.0 $281.4 69.3%

(1)ARK

Type One Deep Ventures Fund LLC is an investment fund for which the Class A Interest is solely invested in the Series A-2 Preferred Shares of OpenAI Global, LLC. The Company is invested in the Series A-2 Preferred Shares of OpenAI Global, LLC through its investment in the Class A Interest of ARK Type One Deep Ventures Fund LLC.

(2)IH10,

LLC’s sole portfolio asset is an interest in the Series B Preferred Shares of VAST Data, Ltd. through a special purpose vehicle (“SPV”). The Company is invested in the Series B Preferred Shares of VAST Data, Ltd. through its investment in the Membership Interest of IH10, LLC.

(3)Magnetar Opportunity 2025-4 LP is an SPV for which the Class A Interest and Class B Interest are invested in the Series B Preferred Shares of TensorWave, Inc. The Company is invested in Series B Preferred Shares of TensorWave, Inc. through its investments in the Class A Interest and Class B Interest of Magnetar Oppor

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Exhibit 99.1

Neostellar Capital Corp. Announces Second Quarter 2026

Preliminary Investment Portfolio Update

Completed Remaining $15 Million Investment in TensorWave via Magnetar Opportunity 2025-4 LP

Net Asset Value Expected to be $13.25 to $13.75 Per Share

NEW YORK, NY, July 8, 2026 (GLOBE NEWSWIRE) – Neostellar Capital Corp. (“Neostellar Capital”, the “Company”, “we”, “us”, and “our”) (Nasdaq: NSLR) today provided a preliminary update on its investment portfolio for the second quarter ended June 30, 2026.

As previously announced, effective July 1, 2026, the Company changed its name from SuRo Capital Corp. to Neostellar Capital Corp. and its Nasdaq Global Select Market ticker symbol from “SSSS” to “NSLR” in anticipation of its transition to an externally managed structure.

“Our stockholders overwhelmingly approved the transition to an externally managed structure, and the transition is now subject only to customary regulatory approvals, which we expect to receive in the near-term,” said Mark Klein, Chairman and Chief Executive Officer of Neostellar Capital. “We believe this evolution of our platform will enhance our sourcing capabilities, broaden our investment opportunity set, and increase our flexibility in pursuing differentiated private technology investments.”

“During the second quarter, we funded our remaining $15 million commitment to TensorWave through an investment in Magnetar Opportunity 2025-4 LP. Together with the initial $5 million investment completed during the first quarter of 2026, Neostellar Capital’s total investment in TensorWave now stands at $20 million. Since the initial investment, TensorWave has continued to execute against its growth strategy, reinforcing our investment thesis and conviction in the long-term opportunity. We believe TensorWave is well positioned to benefit from increasing demand for high-performance AI compute infrastructure as enterprise AI adoption continues to accelerate.”

“We also completed a $9.5 million investment in ClickHouse during the second quarter, further expanding our exposure to category-leading private technology companies supporting AI and enterprise software infrastructure. ClickHouse is a leading provider of high-performance analytical database software serving enterprise and AI-driven workloads. We believe ClickHouse’s differentiated technology and growing enterprise adoption position it well for continued long-term growth.”

“These investments reflect our disciplined approach to capital allocation and our strategy of partnering with category-leading private technology companies benefiting from durable secular growth trends,” Mr. Klein continued. “We remain focused on identifying businesses with differentiated technologies, strong competitive positions, and attractive long-term growth prospects.”

Mr. Klein concluded, “We believe the continued adoption of artificial intelligence is creating an expanding universe of compelling private investment opportunities. Our objective remains to partner with exceptional entrepreneurs building category-defining technology companies before they become broadly accessible in the public markets. We believe Neostellar Capital is well positioned to capitalize on these opportunities and deliver long-term value for our stockholders.”

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Preliminary Net Asset Value

As previously reported, the Company’s net assets totaled approximately $361.6 million, or $14.24 per share, as of March 31, 2026, compared to approximately $219.4 million, or $9.18 per share, as of June 30, 2025. As of June 30, 2026, the Company’s net asset value is estimated to be between $13.25 and $13.75 per share.

Investment Portfolio Update

As of June 30, 2026, the Company held positions in 37 portfolio companies – 34 privately held and 3 publicly held.

During the three months ended June 30, 2026, the Company made the following investments:

Portfolio Company

Investment

Transaction Date

Amount(1)

Huntress Labs Inc.

Common Shares

4/8/2026

$0.2 million

ClickHouse, Inc.

Series A Preferred Shares

4/22/2026

$9.5 million

Magnetar Opportunity 2025-4 LP(2)

Class B Interest

6/3/2026

$15.0 million

(1)Amount invested does not include capitalized costs or prepaid expenses, if applicable.

(2)Magnetar Opportunity 2025-4 LP is a special purpose vehicle (SPV) invested in TensorWave, Inc. On December 31, 2025, the Company committed up to $20.0 million to Magnetar Opportunity 2025-4 LP. As of June 30, 2026, the entire $20.0 million capital commitment to Magnetar Opportunity 2025-4 LP has been funded.

During the three months ended June 30, 2026, the Company exited and/or received proceeds from the following investments:

Portfolio Company

Transaction

Date

Quantity/

Initial Capital

Average Net Share Price(1)

Net

Proceeds

Realized

Gain

CW Opportunity 2 LP

Various

12.2%

N/A

$6.5 million

$4.6 million(2)

GrabAGun Digital Holdings Inc. - Common Shares(3)

Various

147,135

$3.