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Insider Ownership

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US Activist Hedge Fund Institutional SEC 13D 13G — October 01, 2026

The 47 filings reveal a significant wave of activist and institutional repositioning, with several high-conviction moves and notable exits. Key themes include a broad de-escalation of activist intent by SIT Investment Associates across seven closed-end funds, transitioning from 13D to 13G filings, signaling a return to passive investment. Conversely, new activist stakes were established in Canterbury Park (9.35%) and Sono Group (21.5%), while Nokia's strategic investment in Inseego (14.2%) and Advent's continued engagement with Definitive Healthcare highlight corporate and PE-driven catalysts. Insider activity was mixed, with JinkoSolar's chairman reducing his stake and Tokyo Lifestyle's CEO increasing his via a debt-to-equity swap. Capital allocation actions include Mudrick's acquisition of Vroom's convertible notes and AMG's purchase of additional fund units. The most material event is American Express's exit from Global Business Travel Group following the merger close, while the most concentrated ownership is Mudrick's 76.1% stake in Vroom. Overall, the period is characterized by strategic repositioning, with a few high-impact catalysts and a broad trend towards passive investment in the closed-end fund space.

17 high priority 30 medium 47 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 29, 2026

The 27 filings reveal a surge in activist campaigns targeting underperformers across real estate, consumer, and tech sectors, with major shareholders pushing for strategic alternatives such as sales, board changes, or operational improvements. Notable insider buying by Ryan Cohen (GameStop) and Oasis Management (Vail Resorts) signals conviction at depressed prices, while insider selling by IFC (Lesaka Technologies) and KE Holdings' founder raises caution. SPAC activity is reviving with new sponsors for NorthStrive and BEST SPAC, and M&A catalysts are emerging at MoneyHero, IAC, and Lifecore Biomedical. Passive institutional stakes in Maravai LifeSciences, Sweetgreen, and Coursera indicate selective sector interest. The most critical developments are the activist escalation at BrightSpire Capital after board rejection of ownership waiver, the public letter from MoneyHero's largest unaffiliated shareholder urging a sale, and the completion of Global Business Travel Group's merger at $9.50/share.

18 high priority 9 medium 27 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 28, 2026

This digest of 23 regulatory filings reveals a concentrated period of activist and institutional activity, with several high-stakes ownership changes and strategic maneuvers. The most critical developments include a complete loss of control at Happy City Holdings due to a default on a high-interest loan, a disputed ownership stake at Silexion Therapeutics tied to an active lawsuit, and a significant insider sell-down by Medpace's CEO. A notable pattern is the use of dual-class share structures to separate economic ownership from voting control, seen at Hyperscale Data and AIFU Inc., creating complex governance dynamics. Institutional investors like STRS Ohio and Two Seas Capital are maintaining or increasing passive stakes, while activist investors like Legion Partners are leveraging voting agreements to facilitate a merger at Lifecore Biomedical. The period-over-period data highlights a trend of capital raising through convertible notes and share subscriptions, alongside insider pledges and transfers for estate planning, indicating both financial engineering and personal wealth management strategies. The overall market implication is one of heightened volatility and potential for control changes, particularly in smaller-cap and special situation companies.

17 high priority 6 medium 23 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 25, 2026

The 31 filings reveal a surge in activist and strategic stake-building, with Tessenderlo Group's 20% private placement in FMC Corp and Byron Allen's 55.7% controlling stake in BuzzFeed as the most material events. Insider trading patterns show significant accumulation in TORM plc (Hafnia Ltd adding $202.9M in two weeks) and Redwood Trust (Howard Amster group investing $46M), while Carl Icahn's routine dividend distribution and the Dondero entities' small DRIP purchases indicate passive maintenance. Period-over-period comparisons highlight a notable dilution event at Jin Medical International, where CEO Erqi Wang's economic stake fell from 6.77% to 3.35% due to share issuance for an acquisition, though he retains 96.15% voting control. The Grayscale Near Trust filing shows a rapid in-and-out trade, with Karminski acquiring 8.04% then selling down to 2.61% within the same period. Overall, the digest points to concentrated activist positioning in undervalued assets (FMC, BuzzFeed, TORM), passive institutional accumulation in SPACs and biotech, and a few exit filings from completed mergers or dilution events.

17 high priority 14 medium 31 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 24, 2026

The September 24, 2026, batch of 27 filings reveals a landscape dominated by significant insider stake reductions and activist campaigns, particularly in the small-cap and micro-cap space. A clear pattern emerges of major shareholders monetizing positions, with Oaktree Capital selling a $162.5M block in TORM plc and the CEO of Xanadu Quantum Technologies selling $45M+ in stock. Activist pressure is intensifying at PAINREFORM LTD., where a 5.7% holder is demanding a full board removal, while the newly formed Host Digital Inc. (formerly Healthy Choice Wellness Corp.) sees three separate filings disclosing a combined ~87% insider ownership post-merger, creating a highly concentrated control structure. The withdrawal of People Inc.'s (IAC) acquisition proposal for MGM Resorts, despite retaining a 26.5% stake, signals a shift from active M&A to a 'wait-and-see' strategic review. Overall, the data points to a period of portfolio rebalancing by insiders and activists, with capital flowing out of mature positions and into new, potentially transformative corporate structures.

19 high priority 8 medium 27 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 23, 2026

This digest of 21 filings reveals a sharp dichotomy in activist and institutional activity. The most material development is a power transfer at Cheer Holding, where a Hong Kong entity acquired 96.44% voting control for a nominal $500, signaling a potential backdoor listing or restructuring. A major strategic realignment is underway at VNET Group, where CATL affiliates acquired a 38.1% stake, with founder Sheng Chen retaining 34.3% voting power via a consortium agreement, creating a powerful new alliance in the data center space. Conversely, Lantheus Holdings is aggressively reducing its stake in Perspective Therapeutics, selling 2.7 million shares in three weeks as the stock price declined, a clear bearish signal. Saba Capital continues to accumulate Japan Smaller Capitalization Fund, adding $21.7 million in shares, pressing for strategic alternatives. A new activist position emerged at URSB Bancorp, where Lawrence Seidman built a 5.4% stake and is pushing for board representation. The remaining filings are largely passive institutional disclosures (13G) or routine SPAC adjustments, providing limited actionable signals. The overall theme is one of concentrated, high-conviction moves in small- to mid-cap names, with a notable absence of large-scale activist campaigns.

14 high priority 7 medium 21 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 22, 2026

The September 22, 2026 batch of 19 filings reveals a landscape of strategic positioning and passive accumulation, with notable activist and insider activity concentrated in a few key names. The most significant development is the board seat agreement at Group 1 Automotive (GPI) between Conifer Management and the company, signaling a potential catalyst for operational changes. Meanwhile, Fund 1 Investments has built a substantial economic exposure in Funko, Inc. (9.8% direct + 11.5% via swaps), suggesting a complex, potentially activist-oriented position. On the passive side, multiple institutional investors (Millennium, Hewlett Fund, RainForest Partners) have disclosed new stakes, while insiders at TriplePoint Venture Growth and Aeries Technology have made notable transactions. A key portfolio-level trend is the prevalence of 'mixed' sentiment in filings with insider transactions, indicating nuanced views. The data also highlights a capital allocation divergence, with some companies (e.g., Vista Credit) raising capital via private placements while others see insider buying (e.g., Aeries CEO). Overall, the filings point to a market where sophisticated investors are selectively deploying capital, seeking influence or value in specific situations.

10 high priority 9 medium 19 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 18, 2026

This digest of 31 filings reveals a market characterized by significant insider capital movements and passive institutional positioning, with a notable concentration of activity in small-cap and micro-cap equities. The most critical development is the emergence of a potential activist situation at **Troops, Inc.**, where JMD Corporate Services acquired a 14.7% stake and signaled intent to influence management, marking the most actionable event in this batch. A significant pattern of insider de-risking is evident, with major shareholders at **ATN International** (Cornelius Prior Jr.), **Golden Matrix Group** (Anthony Goodman), and **Rainmaker Worldwide** (Michael O'Connor) all reducing their stakes or exiting management, creating a bearish overhang for these names. Conversely, the data shows a cluster of passive institutional accumulation in **Creatd, Inc.**, where three separate filers disclosed stakes totaling over 25% of the float, suggesting a potential value play or restructuring thesis. The **Liberty Live Holdings** split-off continues to generate institutional interest, with Linonia Partners holding a combined 18.5% across two share classes. Overall, the period is marked by low activist campaign intensity but high insider transaction activity, with a clear skew toward passive reporting (13G vs. 13D) and a focus on capital structure optimization and shareholder return mechanisms like buybacks and dividends.

15 high priority 16 medium 31 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 17, 2026

The September 17, 2026 filing batch reveals a pronounced shift toward passive investment (13G) filings, with 20 of 32 filings indicating no intent to influence control. Notable activist or strategic activity includes a going-private proposal for 111, Inc., a tender offer by Beretta for Sturm Ruger, and significant stake building in XBP Global Holdings by two entities. Insider activity shows a mix of confidence (Greenidge director purchase, FibroBiologics CSO investment) and exits (Cheer Holding CEO sale, Uber's Aurora block sale). Capital allocation trends include a major secondary sale by Diamondback's largest shareholder and a strategic acquisition by Hafnia in TORM. Sector themes highlight energy sector consolidation, healthcare passive accumulation, and a notable shift in voting control structures. Key catalysts include the Sturm Ruger tender offer expiry (Oct 15) and XBP registration statement deadline (Sep 22).

18 high priority 14 medium 32 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 16, 2026

The September 16, 2026 batch of 36 filings reveals a bifurcated activist/institutional landscape. Activist managers are deploying capital into beaten-down small/micro-caps (Hepion, VolitionRx, Nuzee) and agitating for board change at larger caps (Vail Resorts, Dynatrace), while several 13Ds show ownership reductions (Comstock, Genco Shipping) and passive 13G filings dominate the institutional flow. Key themes include activist board refreshment campaigns, insider selling into strength (Comstock), and a notable concentration of filings in healthcare and financials. The most actionable signals are the Vail Resorts proxy fight, MIG's strategic investment in Nuzee, and the Gabelli accumulation in Suro Capital.

24 high priority 12 medium 36 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 15, 2026

The September 15, 2026 batch of 31 SEC filings reveals a period of significant repositioning across the US equity market, with a clear tilt toward activist accumulation and insider monetization. The most critical developments include Byron Allen acquiring a 53.5% majority stake in BuzzFeed, signaling a potential media turnaround play, and the complete exit by Braeden Lichti and Northstrive Fund from enVVeno Medical Corp, which flags deep concern in the medtech sector. Insider activity is notably mixed: while CEOs like Jason Wilk (Dave Inc.) are monetizing via forward contracts and 10b5-1 plans, insiders at Advanced Flower Capital, Eltek, and PetVivo are aggressively accumulating shares through open-market purchases. A strong trend emerges in the form of preferred share conversions and warrant exercises, most evident in General Steel Holdings (83% stake created from 100 Series C Preferred shares) and Solana Co (9.76% stake via pre-funded warrants). Capital allocation patterns show a bifurcation: Boston Omaha Corp is deploying a share buyback that passively lifts insider ownership, while Diamond Dynamic Credit Fund and others report no transactional activity, highlighting a holding pattern. Overall, the data suggests a market where deep-value and activist investors are positioning aggressively, while some insiders are de-risking, creating a bifurcated opportunity set. Forward-looking calendar items, such as the Braemar Hotels annual meeting on November 13 and the XCF Global warrant expiration on December 31, 2026, provide near-term catalysts for investors focusing on event-driven strategies.

23 high priority 8 medium 31 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 14, 2026

The September 14, 2026 batch of 20 filings reveals a clear bifurcation in activist and institutional activity. A significant cluster of high-materiality events centers on M&A and corporate control, including a revised $3.75/share bid for Anghami (up from an undisclosed prior price), the completion of Eli Lilly's acquisition of atai Life Sciences, and a major secondary offering by TDR Capital that reduced its Target Hospitality stake to 30.5%. Meanwhile, passive institutional stakes (13Gs) dominate the remaining filings, with notable positions from Stanley Druckenmiller in Guardian Metal Resources (12.7%) and L. John Doerr in SunPower (14.0%). A key period-over-period trend is the active conversion and exchange of share classes to gain liquidity or voting control, seen in Hagerty (Markel exchanged Class V for Class A shares) and Greenidge (Atlas converted Class B to Class A). Insider activity was mixed: CEO Charles Youakim of Sezzle lost control of 1.5M shares due to a divorce ruling, while CEO Raza Bokhari of Medicus Pharma filed a 13D signaling active influence. The most critical development is the potential take-private of Anghami at a significant premium to its warrant strike price, creating an arbitrage opportunity. Overall, the stream points to heightened M&A and restructuring activity in small- and mid-cap names, with passive investors accumulating positions in undervalued or distressed assets.

11 high priority 9 medium 20 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 11, 2026

This batch of 36 filings reveals a surge in activist and insider activity, with several campaigns targeting governance and strategic changes at small- to mid-cap companies. Notable activist pushes include a special tender offer for Evogene Ltd., a public campaign at Freightos, and a call for a full sale at TransAct Technologies. Insider selling is pronounced, with Andreessen Horowitz reducing its Nautilus Biotechnology stake below 5%, Squadron Capital trimming its OrthoPediatrics position, and the Toro 18 group selling Universal Electronics shares. Conversely, Fairmount Funds has taken a 19.99% stake in Korsana Biosciences, and Conversant Capital acquired a 9.8% stake in Vulcan Infrastructure. The Rent the Runway filings highlight a coordinated capital raise with a $15M rights offering backstopped by major holders, while the American Homes 4 Rent filings show a significant ownership restructuring as the B. Wayne Hughes estate distributes shares. Overall, the period is marked by high-conviction activist entries, partial exits by early investors, and several companies undergoing capital structure changes, creating a rich environment for event-driven strategies.

25 high priority 11 medium 36 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 09, 2026

This digest of 31 filings reveals a concentrated wave of insider and institutional capital deployment, with several high-conviction insider purchases and a notable activist build-up in Swvl Holdings. The period is dominated by post-merger ownership disclosures, particularly in Hornbeck Offshore Services (formerly Helix Energy Solutions) and Blue Laser Fusion (formerly Unite Acquisition 2), where multiple filers are establishing or adjusting positions. A key theme is the divergence in insider behavior: while Cybin executives are buying shares and receiving large equity grants, Diana Shipping is aggressively reducing its Genco stake, signaling a bearish view on the dry bulk shipping sector. The data also shows a significant passive accumulation by Cascade Investment (Bill Gates) in Republic Services, and a deliberate 4.99% position by Pictet in Dynatrace, suggesting a potential activist engagement. Overall, the filings point to a market where insiders and large holders are actively repositioning, with a tilt toward value and special situations.

23 high priority 8 medium 31 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 08, 2026

The September 8, 2026, batch of 50 SEC filings reveals a period of significant portfolio repositioning by major institutional investors, particularly FMR LLC (Fidelity), which executed a series of complete exits and new passive stakes. The most critical development is an escalating activist campaign at Braemar Hotels & Resorts, where the largest shareholder is nominating a full slate of directors, signaling a potential boardroom battle. A notable sector theme is the concentrated institutional ownership in Calamos closed-end funds, with MetLife holding dominant positions in several preferred share series. While most filings are routine passive disclosures, the combination of Fidelity's exits from Leggett & Platt and Orla Mining, alongside new 10%+ stakes in companies like Viatris and Graphic Packaging, suggests a strategic rotation away from certain sectors. The data also highlights a multi-class share structure concern at NaaS Technology, where a single entity controls 57.7% of voting power despite owning 51.9% of equity, creating a significant governance risk for minority shareholders.

7 high priority 43 medium 50 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 04, 2026

This batch of 50 filings reveals a significant shift in activist and institutional activity, with a notable increase in passive-to-active conversions and large strategic stake accumulations. The most critical development is the Tether/Rumble filing, where Tether now holds a 50.3% controlling stake, signaling a major strategic move in the digital media space. We also see a pattern of institutional investors fully exiting SPAC positions (Magnetar Financial exiting 7 SPACs), while other entities like BlueArc Capital and Grey Rock are building or maintaining large, controlling stakes. Insider activity is mixed: the CEO of Addex Therapeutics repriced options to a near-zero strike price, signaling deep insider alignment but also highlighting severe share price decline, while Lantheus is actively selling its Perspective Therapeutics stake. Period-over-period comparisons are limited in these filings, but the data shows a clear trend of large, strategic block acquisitions and a rotation away from passive SPAC exposure. The most actionable insights center on the Tether/Rumble control, the GeoPark/Gilinski transaction, and the VolitionRx activist campaign.

12 high priority 38 medium 50 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 03, 2026

The September 3, 2026, batch of 50 filings reveals a market dominated by passive institutional adjustments and technical corrections, with several high-conviction activist and insider moves creating distinct opportunities. A notable theme is the administrative realignment at The Vanguard Group, which generated six low-materiality filings correcting issuer CIKs and reporting zero beneficial ownership post-internal restructuring, creating noise but no actionable signals. Conversely, high-conviction activist activity is concentrated in small-cap and micro-cap names, with Gareth Nichol acquiring a 20.17% stake in Dynaresource and a group led by Bastion Trading launching an activist campaign against SkyAI (formerly Sharps Technology), demanding board change. The most significant capital event is the consummation of AbbVie's acquisition of Apogee Therapeutics at $135.11 per share, providing a clear exit for Fairmount Funds. Insider selling plans are notable at Paycom Software, where Chad Richison authorized a 10b5-1 plan to sell up to 1.09 million shares, while Ryan Cohen's passive reduction in GameStop due to dilution signals no change in insider conviction. Sector-wise, the data shows a concentration of activist interest in struggling small-cap industrials and cannabis-adjacent companies, while passive institutional flows remain steady in ETFs and mid-cap value names. The overall portfolio-level pattern suggests a bifurcated market: large passive flows are administrative, while alpha is being generated through targeted activist campaigns in distressed or underperforming small caps.

18 high priority 32 medium 50 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 02, 2026

This digest of 48 filings reveals a bifurcated activist landscape: aggressive, high-conviction moves by major holders like Advent International (Definitive Healthcare) and Saba Capital (BlackRock ESG Term Trust) contrast with passive institutional stake-building in ETFs and infrastructure funds. The most critical development is the potential take-private of Definitive Healthcare at $1.02/share, a 58.5% holder-led bid with insider rollover, signaling deep value. A significant pattern emerges in the SPAC and blank-check space, with three separate filers (Great Point, Deep Track, Commodore) all accumulating 5-6% passive stakes in JATT III Acquisition Corp, suggesting a coordinated or thematic bet on a deSPAC catalyst. Insider selling is notable but largely explained by estate planning (Tutor Perini) and warrant restructuring (Carvana/Root). The withdrawal of TDS's proposal to acquire Array's remaining shares is a major strategic reversal, creating uncertainty for minority holders. Capital allocation is mixed, with a $7.7M preferred equity injection into Valion Bio (Tivic Health) and a $55M structured investment in Accuray with significant execution risk. Overall, the data points to a market where large holders are forcing action (go-private bids, board engagement) while passive investors rotate into defined-outcome ETFs and infrastructure, signaling a risk-off tilt within the active opportunity set.

23 high priority 25 medium 48 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — September 01, 2026

The September 1, 2026 batch of 23 filings reveals a dominant theme of passive institutional positioning, with the most significant activist event being a decisive legal victory for ATG Capital against Empery Digital Inc., creating a high-conviction catalyst. A notable cluster of seven separate filings for Universe Pharmaceuticals INC reveals a fragmented ownership structure with multiple 9-10% passive holders, suggesting a potential hidden control structure or coordinated accumulation that warrants close monitoring. The OrthoPediatrics Corp filing shows a major activist (Squadron Capital) actively reducing its 25% stake to raise capital, creating a persistent overhang. Insider activity is minimal across the batch, with the most material signal being the complete exit of Advent International from NCS Multistage Holdings. The period-over-period data is limited in these initial ownership filings, but the transaction details and forward-looking legal catalysts provide actionable intelligence. The overall sentiment is neutral with one high-conviction mixed (bullish) signal from the Empery Digital court ruling. The key takeaway is that while most filings are passive, the Empery Digital situation and the Universe Pharmaceuticals ownership puzzle offer the most alpha generation potential.

4 high priority 19 medium 23 total filings
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US Activist Hedge Fund Institutional SEC 13D 13G — August 31, 2026

This digest of 20 SEC filings reveals a mixed landscape of activist and institutional activity. Key themes include insider confidence through significant stake increases (TDH Holdings CEO), passive institutional accumulation (Suja Life, Royalty Management), and notable insider selling (Starfighters Space). Period-over-period comparisons show a trend of passive investment disclosures (13G filings) outnumbering activist filings (13D), suggesting a cautious but accumulating market stance. The most critical development is the 49.11% controlling stake acquisition by TDH Holdings' CEO, signaling strong insider conviction. However, the significant insider selling by Starfighters Space's founder, with prices declining sharply from $10.49 to $3.96, raises a major red flag. Portfolio-level patterns indicate a focus on small-cap and micro-cap companies, with several filings involving corrections of prior filing errors, highlighting potential compliance risks.

14 high priority 6 medium 20 total filings