Whale Investor Holdings

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Daily recap of holdings changes from whale-tier investors—convenient for retail traders to follow the smart money

Whale Investor Holdings2026/06/12 21:28:15

Politan books $826M on MASI: whale moves Jun 12

Politan Capital's 13D/A Amendment No. 17 reports zero MASI shares, closing a four-year activist campaign that ran from a 9% derivative stake in 2022 to Danaher's $180/share buyout — estimated exit proceeds ~$826M. D.E. Shaw enters Gossamer Bio at 9.5% via debt-for-equity exchange; BHR announces full board reset and self-managed REIT conversion worth $25M+ annual savings; CoreWeave reveals $98.8B revenue backlog alongside its $3.5B notes offering. Nerdy CEO Cohn's 477K trust buy at sub-$1 is the window's cleanest discretionary insider signal.

Whale Investor Holdings2026/06/11 20:45:38

Coliseum Capital's $124M UTI exit leads: whale moves Jun 10–11

Coliseum Capital's $124M near-full UTI liquidation led Thursday's EDGAR queue, joined by Marc Andreessen's $39M Samsara trim and a $46.8M Datadog CEO+CFO sell cluster — countered by a rare five-insider BDC buy at Horizon Technology Finance.

Whale Investor Holdings2026/06/10 21:32:39

General Atlantic goes whale: $60M Liftoff bet leads Jun 10 moves

General Atlantic's $60M LFTO buy tops Wednesday's filings. Silver Lake DELL week tops $337M; Viasat CEO sells $25.9M; BORR split signal.

Whale Investor Holdings2026/06/09 21:29:52

Quantinuum insiders go all-in: whale moves Jun 9

Tuesday's EDGAR queue was led by a 10-insider, $24.65M same-day cluster at Quantinuum (QNT) — the most concentrated quantum computing insider buy of 2026, with 5 of 10 insiders establishing new or near-new positions at $60/share off a $71.35 high. Supporting buys include First Citizens Bancshares CEO Frank Holding Jr's $2.3M multi-day purchase, an Enviri Corp post-spinoff CEO+CFO+Director cluster ($1.41M), and a 4-insider PICS cluster ($2.89M). On the sell side, Silver Lake disclosed another ~$51.7M in Dell Class C sales — a continuation of its multi-month B→C conversion program. RPAY's annual meeting, where Forager (12.4%) and Veradace (8.2%) have committed to withhold all director votes, is today (June 10).

Whale Investor Holdings2026/06/08 22:16:04

RYAN founder buys the dip, Strategy adds 1,550 BTC: whale moves Jun 8

Monday's EDGAR queue delivered two confirmed actionable signals: Strategy's weekly 8-K showing $181M in ATM stock sales converted into 1,550 BTC (total treasury now 845,256 BTC, average cost $75,680), and Ryan Specialty Holdings founder Patrick Ryan's $3.9M open-market buy on June 5 — capping a 3-officer cluster totaling $4.2M. RPAY's annual meeting is tomorrow (June 10) with Forager (12.4%) and Veradace (8.2%) committed to withholding director votes and zero board response through window close.

Whale Investor Holdings2026/06/07 21:30:12

HUBC filer mystery solved: whale moves Jun 7

Sunday's EDGAR blackout window (Jun 6 13:36 → Jun 7 13:00 UTC) produced zero new whale-scale filings, as expected. The lead item is the resolution of the three previously anonymous Schedule 13G filers at Hub Cyber Security — Steven Strauss (120,750 shares), Jonathan Strauss (~194,000 pre-split shares), and Elliot Weinberger (confirmed EXIT) — clearing the last identity gap ahead of post-split trading on Monday June 8. RPAY's annual meeting is Monday June 10, with Forager (12.4%) and Veradace (8.2%) both committed to withholding director votes and no board response as of Sunday.

Whale Investor Holdings2026/06/06 21:36:39

FANG $2B exit leads a sell-heavy Saturday: whale moves Jun 6

Saturday's 24-hour window is dominated by two of the quarter's largest Form 4 disclosures: Diamondback Energy related party Lyndal Greth's $2.04B sell of 10 million shares, and a KKR / George Roberts coordinated $1.73B PE exit from BrightSpring Health. Three watchlist gaps resolve in a single cycle: Walden exits HUBC to zero post-split (Weinberger also clears), Slootman's Snowflake divestiture is confirmed at $153M cumulative under a 10b5-1 plan, and Pagliuca's $25M NCLH open-market buy is verified. Silver Lake's DELL stake restructuring is now quantified at 46.5M Class C shares. Proxy contests escalate at NNDM (PREC14A, 70% board declassification threshold) and SEER (board rejects Radoff-JEC revised offer; July 28 meeting). New 13D/G filings include a Hartree Partners 13D→13G passive flip on HDSN and a community banker activist 13D at CZWI.

Whale Investor Holdings2026/06/05 21:33:34

HUBC activist conversion and AS $25M sell: whale moves Jun 4–5

Hub Cyber Security's post-reverse-split float is reshuffling fast: Tyler White converted from passive 13G to activist 13D ahead of the June 7 deadline while three prior holders (Hernandez, Wang, Gnegy) filed exits to zero. Amer Sports CEO Jie Zheng led a $25.3M C-suite sell cluster across two business units with no offsetting insider buys — the window's cleanest directional Form 4 signal. Whale Rock Capital's Q1 13F reveals a $910M AI infrastructure rotation anchored by new positions in Viavi Solutions and MKS Instruments.

Whale Investor Holdings2026/06/04 21:32:59

HUBC ownership reset and $384M block: whale moves Jun 3–4

Hub Cyber Security's ownership table was rewritten in 48 hours — Tyler White's 35.1% stake went to zero, two other holders exited, and three new passive filers surfaced. Forager Fund escalated its RPAY campaign, withholding votes on all five directors at the June 10 annual meeting. The window also delivered a $384M Firefly Aerospace block trade, a $25M NCLH conviction buy from Bain Capital co-chairman Pagliuca, and an $80M+ tech/software insider sell cluster across DDOG, FROG, NTRA, WDAY, SPOT, and XYZ.

Whale Investor Holdings2026/06/03 21:36:13

BHR proxy battle and a $48.8M REIT sale: whale moves Jun 2–3

Al Shams Investments escalated its Braemar Hotels proxy fight on June 2, filing a DFAN14A naming a director slate and demanding a 2026 annual meeting — with a $480M Ashford payment risk named in the filing. A late-surfacing batch of Form 4 sells from May 22–29 brings CBL Friedman's $48.8M single-day REIT sale and five other $15M+ exits to the surface. On the buy side: RBC's $49.9M allocation to its own closed-end fund, SLMT's $11.4M coordinated dual-insider buy, and NCLH's CEO buying 153,000 shares at $16.37. Watch-list: HUBC Walden's 13D deadline hits June 7, SNOW Slootman has only 38,046 shares left, NNDM Murchinson returned with three amendments, TXO Simpson's streak reaches 9.

Whale Investor Holdings2026/06/02 21:34:45

HUBC +386% and $3.6B Medline: whale moves Jun 1–2

A thin Tuesday Form 4 session collides with a dense pile of late-surfacing disclosures: HUBC (Hub Cyber Security) sees 9 ownership filings on June 1 with combined reported stakes exceeding 133% of outstanding shares as the stock rallied 386% in three days — a textbook micro-float squeeze. Corvex's Keith Meister executed a $107M three-day exit from Illumina. The late-surfacing batch includes a $3.6B same-day Medline PE distribution by Blackstone, Schwarzman, and Hellman & Friedman; Slootman's total Snowflake unwind now at $214M; and Apollo's $106M Taboola exit. The one counter-signal: a $20M insider buy of Robinhood by Malka Meyer. Corporate events: BHR sold Park Hyatt Beaver Creek for $176M and paid off $86.25M in convertible notes; RPAY closed the $372M KUBRA acquisition and raised FY2026 revenue guidance 44% to $490–500M.

Whale Investor Holdings2026/06/01 21:33:42

$340M+ sell wave: whale moves May 29–Jun 2

A ~28.5-hour post-Memorial Day window delivered 20 previously unprofiled Form 4 filings. Rocket Lab's four-executive $31.8M cluster sell leads the edition; the broader tech/semiconductor sell wave spans ADI ($24.4M), POWI ($24.3M), IESC Tontine Capital ($22.8M), MPWR ($20.8M), CDNS ($19.2M), DDOG ($18.8M), SPOT ($18.6M), and NET ($18.4M) among others. MP Materials CEO Litinsky completed a $26.4M three-day exit including a May 29 in-window tranche. The buy side is thin: Hamilton Lane Executive Co-Chairman Rogers bought $9.9M, Brera Holdings saw a synchronized $11.4M dual buy. NVTS added a new 13D/A filed May 29. Special situations (HUBC, BHR, RPAY, NNDM) remain in holding patterns.