Magnetar Financial LLC
SEC Form 4 insider trading activity
Magnetar Financial LLC has filed 95 SEC Form 4 filings (2,005 transaction rows) across 2 companies, including CRWV, WHLR, with disclosures dating back to 2025. 25 of those filings fall inside the rolling window. Most recent filing: Aug 19, 2026.
On the most recent filing, Magnetar Financial LLC is listed as 10% Owner at CoreWeave, Inc. Inside the rolling window, Magnetar Financial LLC reported no open-market purchases and 13 open-market sales totaling $1.6B in CRWV. The largest disclosed transaction in the window is a sale of 2,000,540 CRWV shares on May 6, 2026, worth $273.5M.
Companies traded
Other insiders at CRWV
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$1.6B
reported sales (SEC code S)
Companies
2
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| CRWV | 10% Owner | Sale | 307,131 | $33.4M | Aug 19 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 1,921,259 | $213.8M | Aug 15 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 2,147,871 | $231.6M | Aug 15 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 112,111 | $14.6M | Jun 4 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 746,178 | $96.9M | May 8 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 2,000,540 | $273.5M | May 8 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 1,328,201 | $169.6M | May 7 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 1,575,391 | $200.5M | May 7 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 1,494,033 | $179.2M | May 2 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 6,564 | $774K | May 2 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 2,770 | $331K | Apr 25 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 296,160 | $36.2M | Apr 25 | SEC ↗ | |
| CRWV | 10% Owner | Sale | 1,403,666 | $171.4M | Apr 25 | SEC ↗ |
Earlier trades
Open-market purchases and sales filed before the rolling 365-day window, kept from the original Form 4 filings.
| Date | Ticker | Type | Value |
|---|---|---|---|
| Oct 20, 2025 | CRWV | Sale | $31K |
| Oct 20, 2025 | CRWV | Sale | $42K |
| Oct 20, 2025 | CRWV | Sale | $150K |
| Oct 20, 2025 | CRWV | Sale | $202K |
| Oct 20, 2025 | CRWV | Sale | $186K |
| Oct 20, 2025 | CRWV | Sale | $251K |
| Oct 20, 2025 | CRWV | Sale | $302K |
| Oct 20, 2025 | CRWV | Sale | $407K |
| Oct 20, 2025 | CRWV | Sale | $80K |
| Oct 20, 2025 | CRWV | Sale | $108K |
| Oct 20, 2025 | CRWV | Sale | $283K |
| Oct 20, 2025 | CRWV | Sale | $382K |
| Oct 20, 2025 | CRWV | Sale | $208K |
| Oct 20, 2025 | CRWV | Sale | $278K |
| Oct 20, 2025 | CRWV | Sale | $10K |
| Oct 20, 2025 | CRWV | Sale | $13K |
| Oct 20, 2025 | CRWV | Sale | $92K |
| Oct 20, 2025 | CRWV | Sale | $125K |
| Oct 20, 2025 | CRWV | Sale | $355K |
| Oct 20, 2025 | CRWV | Sale | $479K |
| Oct 20, 2025 | CRWV | Sale | $705K |
| Oct 20, 2025 | CRWV | Sale | $952K |
| Oct 20, 2025 | CRWV | Sale | $168K |
| Oct 20, 2025 | CRWV | Sale | $11K |
| Oct 20, 2025 | CRWV | Sale | $222K |
Frequently asked questions
How many SEC Form 4 filings has Magnetar Financial LLC made?
Magnetar Financial LLC has filed 95 SEC Form 4 filings (2005 transaction rows) across 2 companies, including CRWV, WHLR since 2025.
Which companies does Magnetar Financial LLC trade?
Magnetar Financial LLC has filed SEC Form 4 disclosures for 2 companies, including CRWV, WHLR.
When was Magnetar Financial LLC's most recent SEC Form 4 filing?
Magnetar Financial LLC's most recent SEC Form 4 filing on Tracefour is dated Aug 19, 2026.
What is Magnetar Financial LLC's total buy and sell value in the current window?
Inside the rolling retention window, Magnetar Financial LLC bought $0 and sold $1.6B based on SEC Form 4 filings.
What was Magnetar Financial LLC's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 2,000,540 CRWV shares on 2026-05-06, worth $273.5M, per SEC Form 4 filings.