US Activist Hedge Fund Institutional SEC 13D 13G — August 31, 2026

31-08-2026

On August 27, 2026, Dandan Liu, Chair and CEO of TDH Holdings, Inc. (PETZ), acquired 2,969,692 common shares from certain shareholders for an aggregate purchase price of $3,563,630.40. Following the purchase, Ms. Liu beneficially owns 5,069,389 common shares, representing 49.11% of the company's outstanding shares, up from a prior stake of approximately 20.3% (based on the same share count). The acquisition increases her control and signals insider confidence, though the filing notes she may change her intentions and could increase or dispose of holdings in the future.

• · Ms. Liu acquired the shares for investment purposes and may increase or dispose of holdings in the future.
• · Ms. Liu has sole voting and dispositive power over all 5,069,389 shares.
• · No transactions were effected during the past sixty days other than the reported purchase.
• · No contracts, arrangements, or understandings exist with respect to the securities.

31-08-2026

GAMCO Investors, Inc. et al. filed a Schedule 13D/A with the SEC on August 31, 2026, disclosing aggregate beneficial ownership of 440,561 shares of Nathans Famous, Inc. common stock, representing 10.75% of the 4,097,661 shares outstanding. The filing details recent sales by Gabelli Funds, GAMCO Asset Management, and Teton Advisors during August 2026, with prices ranging from $96.9490 to $98.5100 per share.

• · Gabelli Small Cap Growth Fund sold 1,000 shares on 8/18/2026 at $97.50, 700 shares on 8/17/2026 at $97.50, and 600 shares on 8/6/2026 at $98.51.
• · GAMCO Asset Management Inc. sold shares on multiple dates in August 2026: 300 shares at $96.9490 (8/12), 1,550 shares at $97.5238 (8/27), 378 shares at $98.1162 (8/26), 1,497 shares at $97.8216 (8/25), and 1,075 shares at $98.3417 (8/24).
• · Teton Westwood Mighty Mites Fund sold 500 shares on 8/28/2026 at $97.5450.
• · The Reporting Persons state they file the long-form Schedule 13D to ensure compliance with Exchange Act reporting obligations despite being eligible for the short-form Schedule 13G.

31-08-2026

The Gabelli/GAMCO group filed a Schedule 13D/A disclosing aggregate beneficial ownership of 786,779 shares (19.74%) of STRATTEC SECURITY CORP as of August 28, 2026. The increase in ownership percentage from the prior filing was due solely to a decrease in the issuer's shares outstanding (to 3,985,013 shares per the Form 10K filed August 28, 2026), not to any net purchases by the group. During the past 60 days, GAMCO Asset Management sold 510 shares at prices between $76.70 and $78.15, indicating a slight reduction in its direct holdings.

• · The increase in ownership percentage was due solely to a decrease in the issuer's shares outstanding (from the Form 10K filed August 28, 2026), not to any net purchases by the group.
• · GAMCO Asset Management Inc. sold 510 shares during the past 60 days: 500 shares on 8/25/2026 at $78.15 and 10 shares on 8/24/2026 at $76.70.
• · GAMCO does not have authority to vote 5,500 of its reported shares.
• · Gabelli Funds has sole dispositive and voting power over its shares, subject to a 25% aggregate voting interest cap among joint filers.

31-08-2026

Sermonix Pharmaceuticals, Inc. and its CEO David Portman filed a Schedule 13D disclosing beneficial ownership of 5,502,402 shares of LeonaBio, Inc. (formerly Athira Pharma, Inc.), representing 36.9% of the outstanding common stock. The stake was acquired through prefunded warrants received as partial consideration for licensing lasofoxifene to LeonaBio. On August 24, 2026, Sermonix exercised warrants for 3,149,470 shares and declared a distribution-in-kind of 4,725,754 shares (including 2,352,932 assigned to Perceptive Xontogeny), both effective October 26, 2026, while also assigning 170,940 shares to a creditor. The filing reflects a strategic collaboration and a significant ownership position, but the planned distributions will reduce Sermonix's direct holdings.

• · The prefunded warrants were previously subject to a 4.99% exercise cap, which was removed on August 24, 2026.
• · David Portman was granted options to purchase 350,000 shares of LeonaBio common stock in April 2026, vesting starting April 2027.
• · The License Agreement grants LeonaBio an exclusive worldwide license to develop, manufacture, and commercialize lasofoxifene, excluding certain Asian territories.
• · Sermonix's distribution-in-kind includes 2,352,932 shares assigned to Perceptive Xontogeny Venture Fund II, LP.
• · No other transactions in LeonaBio common stock were effected by the Reporting Persons in the past 60 days except those described.

31-08-2026

Soleus Capital Master Fund, L.P. and related entities filed a Schedule 13G with the SEC on August 31, 2026, disclosing beneficial ownership of 3,480,000 shares of Evolus, Inc. common stock, representing a 5.3% stake. The filing is a routine passive investment disclosure under Rule 13d-1(c), with the group certifying the shares were not acquired to influence control of the issuer.

• · The filing is made pursuant to Rule 13d-1(c), indicating a passive investment intent.
• · Each reporting person disclaims beneficial ownership except for purposes of Section 13(d) of the Exchange Act.
• · The address for the principal business office of Soleus entities is 100 Field Point Road, Suite 200, Greenwich, CT 06830.
• · The filing includes a Joint Filing Agreement among all reporting persons.

31-08-2026

Caledonia (Private) Investments Pty Ltd and its affiliate Caledonia US, LP filed a Schedule 13G/A with the SEC on August 31, 2026, disclosing a combined beneficial ownership of 4,131,343 shares of Light & Wonder, Inc. common stock, representing 5.37% of the company. The filing indicates the shares are held in the ordinary course of business and not with the purpose of changing or influencing control of the issuer.

• · The filing is an amendment (13G/A) to a prior Schedule 13G.
• · Caledonia (Private) Investments Pty Ltd is based in Sydney, Australia; Caledonia US, LP is based in New York, NY.
• · The filing certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
• · The filing is made under Rule 13d-1(b), indicating passive investment intent.

31-08-2026

Saba Capital Management, L.P. and related parties filed an amended Schedule 13D/A disclosing beneficial ownership of 2,190,551 common shares of Japan Smaller Capitalization Fund Inc (JOF), representing 7.73% of outstanding shares as of August 28, 2026. The filing details open-market transactions over the past 60 days, including a significant sale of 250,988 shares on July 13, 2026, at $12.78, alongside numerous smaller purchases. The total cost to acquire the reported shares was approximately $17.9 million.

• · The filing is Amendment No. 8 to Schedule 13D, amending Items 3, 5, and 7.
• · Saba Capital Management GP, LLC and Boaz R. Weinstein are also reporting persons, each with the same 2,190,551 shares (7.73%).
• · A significant sale of 250,988 shares occurred on July 13, 2026, at $12.78 per share.
• · The largest single purchase was 98,728 shares on August 5, 2026, at $11.95 per share.
• · All transactions were open-market purchases/sales through a broker; margin account borrowings were used for some purchases.

31-08-2026

5AM Ventures entities and their managing members (Andrew J. Schwab and Kush Parmar) filed a Schedule 13D/A disclosing their aggregate beneficial ownership of approximately 6,379,125 shares of Camp4 Therapeutics Corp, representing about 9.9% of the outstanding common stock. Since the prior filing, 5AM Ventures VI sold a total of 591,875 shares in open market and block transactions between August 19 and August 27, 2026, at prices ranging from $4.04 to $5.00 per share, reducing its direct stake. The filing also notes that 5AM Ventures VII holds Pre-Funded Warrants subject to a 9.99% beneficial ownership blocker, limiting further accumulation.

• · 5AM Ventures VI sold 45,147 shares on 08/19/2026 at an average price of $4.76.
• · 5AM Ventures VI sold 114,700 shares on 08/20/2026 at an average price of $4.54.
• · 5AM Ventures VI sold 32,018 shares on 08/21/2026 at an average price of $4.50.
• · 5AM Ventures VI sold 10 shares on 08/24/2026 at $4.50.
• · 5AM Ventures VI executed a block sale of 400,000 shares on 08/27/2026 at $4.04 per share.
• · The Pre-Funded Warrants held by 5AM Ventures VII include a Beneficial Ownership Blocker preventing exercise above 9.99% ownership.

31-08-2026

Advantage Insurance Inc. disclosed a 5.4% beneficial ownership stake in Katapult Holdings, Inc., holding 4,697,437 shares of common stock as of August 11, 2026. The filing was made under Rule 13d-1(b), indicating the shares were acquired and are held in the ordinary course of business, not to influence control of the issuer. No other ownership changes or material events were disclosed.

• · The filing is a Schedule 13G (passive investment), not 13D (activist), confirming the holder's non-control intent.
• · Advantage Insurance Inc. is domiciled in San Juan, Puerto Rico, and is classified as a life insurance company.
• · The security type is Common Stock, par value $0.0001 per share, with CUSIP 485859201.
• · No amount of the reported shares are held in non-beneficial capacity (all 4,697,437 are sole voting and dispositive power).
• · The ownership percentage is calculated on approximately 87,400,000 shares outstanding as of the 8-K filing date.

31-08-2026

Shopify Inc. and its subsidiary Shopify Strategic Holdings 3 LLC filed an amended Schedule 13D with the SEC on August 31, 2026, disclosing beneficial ownership of 33,405,047 shares of Klaviyo, Inc. Series A Common Stock, representing 20.83% of the outstanding shares. The filing reports the vesting and exercise of warrants for Series B Common Stock, which are convertible into Series A shares on a one-to-one basis, and updates the total outstanding share count used for percentage calculations.

• · The filing is Amendment No. 4 to the initial Schedule 13D filed on December 11, 2023.
• · Warrants vesting schedule: 344,383 on Jan 28, 2026; 344,381 on Apr 28, 2026; 344,383 on Jul 28, 2026; 344,382 on Oct 28, 2026.
• · Exercised warrants: Jan 29, 2026 (344,383); Apr 28, 2026 (344,381); Aug 31, 2026 (344,383).
• · Outstanding Series A shares as of July 31, 2026: 126,937,933 (based on Form 10-Q filed Aug 5, 2026).
• · No transactions in Series A Common Stock by Reporting Persons within the past 60 days except as disclosed.

31-08-2026

In an amended Schedule 13D filing, Jason H. Karp and Ross Berman reported a combined 5.1% beneficial ownership in Grove Collaborative Holdings, Inc. as of August 27, 2026. On that date, Karp was appointed to the Board of Directors as a Class III member with a term expiring in 2028, giving him direct influence over company management and policies. The filing details holdings across multiple entities, with Karp's aggregate stake at 3.8% and Berman's at 1.3%.

• · Jason H. Karp was appointed to the Board of Directors on August 27, 2026, as a Class III member with a term expiring at the 2028 annual meeting.
• · HCI Grove, LLC holds 1,111,110 shares (2.6% of outstanding).
• · HCI Grove Management, LLC holds a warrant for 362,000 shares (0.8% of outstanding).
• · Jason H. Karp directly holds 520,000 shares and indirectly holds 1,111,110 shares via HCI Grove, LLC, for a total of 1,631,110 shares (3.8%).
• · Ross Berman directly holds 194,999 shares and indirectly holds 362,000 shares via HCI Grove Management, LLC warrant, for a total of 556,999 shares (1.3%).
• · The total outstanding shares as of July 31, 2026, were 42,701,046.

31-08-2026

William S. Fisher, a director of Gap Inc. and managing director of Manzanita Capital Ltd., filed an amended Schedule 13D on August 31, 2026, reporting beneficial ownership of approximately 51.2 million shares of Gap common stock, representing 14.6% of outstanding shares as of August 21, 2026. The filing details recent pro rata distributions of 6,004,089 shares from limited partnerships and a trust distribution of 1,476,815 shares on August 27, 2026, but states that Fisher currently has no plans to buy or sell additional shares.

• · William S. Fisher is a managing director of Manzanita Capital Ltd., a private equity investment firm, and a member of the Board of Directors of Gap Inc.
• · The filing amends a prior Schedule 13D originally filed on January 3, 2017, with multiple amendments through March 12, 2025.
• · Fisher's beneficial ownership includes shares held as trustee, co-trustee, through limited partnerships, and via irrevocable proxies granting sole voting power over 4,387,799 shares held by John J. Fisher through trusts.
• · Fisher's spouse separately owns 150,901 shares over which he has no dispositive or voting control.
• · The Reporting Person has no present plans or proposals for extraordinary corporate transactions, changes in board/management, or other major actions as a stockholder, but may be involved in such discussions as a director.

31-08-2026

Paine Schwartz Food Chain Fund V GP, Ltd. filed an amended Schedule 13D disclosing that its affiliated entities now beneficially own 26,107,565 shares of Suja Life, Inc. Class A Common Stock, representing 67.6% of the outstanding shares. From August 26 to August 31, 2026, PSP Suja Life Aggregator, L.P. purchased an additional 827,248 shares in open market transactions for an aggregate of $7,890,116.38, increasing its stake. The filing reflects continued accumulation by the fund, which already held a majority position.

• · The weighted average purchase prices per share ranged from $9.12 to $10.10 across the four trading days.
• · The price range for purchases on August 31, 2026 was $9.65 to $10.32 per share.
• · The filing is an amendment to a Schedule 13D originally filed on August 18, 2026, with a prior amendment on August 25, 2026.
• · The reported securities include 11,271,253 shares held directly and 14,836,312 shares issuable upon exchange of LP Units.
• · Kevin Schwartz serves on Suja Life's board of directors and may be deemed to exercise investment control over the reported securities.

31-08-2026

Hyperscale Data, Inc. and related entities filed Amendment No. 19 to their Schedule 13D, disclosing aggregate beneficial ownership of 1,155,462 shares (38.2%) of Universal Safety Products, Inc. Milton C. Ault III individually beneficially owns 1,221,762 shares (39.7%), including options exercisable within 60 days. Since the prior filing, Ault Lending and Mr. Ault made additional open-market purchases totaling approximately 47,729 shares at prices ranging from $4.96 to $6.59 per share.

• · Ault Lending purchased 46,229 shares since Amendment No. 18 at prices from $5.049 to $6.5904 per share.
• · Milton C. Ault III purchased 2,000 shares since Amendment No. 18 at prices from $4.96 to $5.8521 per share.
• · No transactions were reported by any other reporting person since the prior filing.
• · The filing is an amendment to the original Schedule 13D filed December 23, 2024.

31-08-2026

Etoiles Zeneo Investment Ltd and its sole owner, Kit Shing CHEUNG (CEO and Chairperson of Etoiles Capital Group), filed a Schedule 13D disclosing beneficial ownership of 10,287,000 Class A Ordinary Shares, representing 68.08% of the company's outstanding Class A shares. The filing details a series of transactions from November 2024 through July 2026, including a share re-designation, issuance of new shares, partial sales to five unrelated parties, and voluntary surrender and cancellation of 10,000,000 Class B Ordinary Shares for no consideration. The reporting persons have no current plans for major corporate actions but reserve the right to change their position.

• · The company changed its name from Thrive Capital Group Co., Ltd to Etoiles Capital Group Co., Ltd on February 26, 2025.
• · On November 4, 2024, the company re-designated its share capital into Class A and Class B ordinary shares, and issued 13,490,000 Class A and 10,000,000 Class B shares to Etoiles Zeneo Investment Ltd.
• · On the same date, Etoiles Zeneo Investment Ltd sold minority stakes (4.60% to 4.90%) to five unrelated companies for total consideration of approximately $610,259.
• · All 10,000,000 Class B shares were subsequently surrendered and cancelled for no consideration in two tranches (May 2025 and July 2026), leaving the reporting person with only Class A shares.
• · No transactions in the ordinary shares were effected by the reporting persons during the past 60 days.

31-08-2026

Richard William Svetkoff, founder and former CEO of Starfighters Space, Inc., filed a Schedule 13D disclosing beneficial ownership of 13,119,179 common shares, representing 23.87% of the company's outstanding shares as of August 24, 2026. Since May 8, 2026, Svetkoff has sold a total of 1,050,821 shares in open market transactions at prices ranging from $3.9559 to $10.4877 per share, indicating significant insider selling activity. The shares were originally acquired in 2022 through an equity exchange agreement transferring his interest in Starfighters International, Inc.

• · Svetkoff sold shares at prices ranging from $3.9559 to $10.4877 per share, with the most recent sale on August 4, 2026 at $3.9559—a significant drop from the June high of $10.4877.
• · The filing indicates Svetkoff is a Florida resident and the shares were acquired via an Equity Exchange Agreement dated September 9, 2022.
• · No other transactions or plans were reported beyond the open market sales listed in Schedule A.

31-08-2026

Kranot Hishtalmut Le Morim Ve Gananot Havera Menahelet LTD and Kranot Hishtalmut Le Morim Tichoniim Havera Menahelet LTD filed an amended Schedule 13G with the SEC, disclosing combined beneficial ownership of 1,996,737 ordinary shares of Odysight.ai Inc., representing 9.86% of the outstanding shares as of August 20, 2026. The filing is a routine disclosure of passive investment by Israeli education fund management companies, with no change in control intent.

• · The filing is an amendment (13G/A) to a prior Schedule 13G filed on February 20, 2025.
• · The reporting persons disclaim beneficial ownership of the securities, stating they are held for the benefit of education fund members.
• · The securities were acquired and are held for passive investment purposes, not to change or influence control of the issuer.

31-08-2026

Stonepine Capital Management, LLC and affiliated entities filed a Schedule 13G disclosing beneficial ownership of 625,000 shares of Femasys Inc (FEMY) common stock, representing 7.2% of the 8,375,027 shares outstanding as of August 13, 2026. The holdings consist of 312,500 shares of common stock and warrants to acquire an additional 312,500 shares, subject to a 9.99% beneficial ownership limitation. The filing is a passive investment disclosure under Rule 13d-1(c), with no intent to change or influence control of the issuer.

• · The filing is made jointly by Stonepine Capital Management, LLC, Stonepine Capital, L.P., Stonepine GP, LLC, and Jon M. Plexico, but they disclaim membership in a group.
• · Each reporting person disclaims beneficial ownership except to the extent of their pecuniary interest.
• · The warrants are subject to a 9.99% beneficial ownership limitation.
• · The outstanding share count is based on the Form 10-Q for the quarter ending June 30, 2026.

31-08-2026

Liberty Hill Capital Management, LLC filed a Schedule 13G with the SEC on August 31, 2026, disclosing beneficial ownership of 1,420,108 shares of Royalty Management Holding Corp (RMCOW) Class A Common Stock, representing a 9.95% stake. The filing corrects a prior erroneous Schedule 13D filed in November 2023, as the reporting entity was and remains eligible to report on Schedule 13G under Rule 13d-1(c). The filing certifies the securities were not acquired to influence or change control of the issuer.

• · The filing corrects a prior erroneous Schedule 13D filed on November 8, 2023.
• · The reporting entity is eligible to report on Schedule 13G under Rule 13d-1(c).
• · The filing certifies the securities were not acquired to change or influence control of the issuer.

31-08-2026

Southern Cross Acquisition II Sponsor Corp. and its sole shareholder, Peizhong Yu, filed a Schedule 13D disclosing beneficial ownership of 3,025,800 ordinary shares (approximately 27.75%) of Southern Cross Acquisition II Corp. as of August 27, 2026. The stake includes founder shares and private placement units acquired in connection with the SPAC's IPO. The filing indicates no immediate plans for extraordinary transactions, but the Reporting Persons may acquire additional shares in the future.

• · The Reporting Persons have no plans for extraordinary corporate transactions, changes to the board, or delisting, but may acquire additional shares in the future.
• · The Sponsor transferred founder shares to the CEO, CFO, and three independent directors on August 25, 2026.
• · The private placement units include one ordinary share, one warrant exercisable at $11.50, and one right to receive one-fourth of one ordinary share.
• · The Reporting Persons have not engaged in any other transactions in the ordinary shares during the past 60 days.
• · The Reporting Persons have no criminal convictions or civil judgments related to securities laws in the past five years.