Insiders who reported open-market trades in the last 12 months at the companies Magnetar Financial LLC files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Brian M. Venturo - $1.02B in CRWV purchases and sales in the last 12 months
Michael N. Intrator - $883.24M in CRWV purchases and sales in the last 12 months
Brannin McBee - $218.74M in CRWV purchases and sales in the last 12 months
Jack D. Cogen - $135.35M in CRWV purchases and sales in the last 12 months
Nitin Agrawal - $40.92M in CRWV purchases and sales in the last 12 months
Kristen J. McVeety - $23.66M in CRWV purchases and sales in the last 12 months
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Magnetar Financial LLC is a corporate entity, tracked as 10% Owner of CoreWeave, Inc. (CRWV). InsiderAlpha holds 53 primary Form 4 filings for it, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Magnetar Financial LLC submitted recently?
3 primary Form 4 filings in the last 90 days, covering 1 company.
Has Magnetar Financial LLC been buying or selling stock?
Recorded transactions: 59 open-market purchases ($9.58B) and 863 open-market sales ($22.58B) across all tracked filings.
Magnetar Financial LLC is 10% Owner of CoreWeave, Inc. (CRWV). 53 SEC Form 4 filings on record going back to 2025, most recently on 18 September 2026. Most recent open-market trade: sold $104K of CRWV on 19 August 2026. Lifetime open-market purchases: $9.58B. Lifetime open-market sales: $22.58B.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Magnetar Financial LLC.
InsiderAlpha's records for Magnetar Financial LLC go back to 2025: 53 primary Form 4 filings, an average of 26.5 per year. The typical open-market purchase is $1.06B (9 of 59 buys carry a usable dollar value, totaling $9.58B). The largest single buy on record is $2.50B of CRWV in 2025. Sales side: 863 recorded sales totaling $22.58B, so the filing history runs sell-heavy by dollar value. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
