Magnetar Financial LLC
CIK 1352851 · last filed 2026-08-14
Magnetar Financial LLC is a corporate insider who has filed 42 SEC Form 4 insider transactions across 4 companies since 2021. The most recent filing, for CRWV, was dated Aug 14, 2026. Across all open-market trades the lifetime net is −$6.63B, making them a net seller over the disclosed history. Current disclosed insider exposure totals $118.1M across reported positions. The firm reports its address in Evanston, IL. 168 SEC filings were submitted jointly with Magnetar Capital Partners LP.
"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.
Charts
Trading activity, where the exposure sits, and each trade against the stock price.
CRWV price and trades
Daily close with each Form 4 filing on this company marked: green = open-market buy, red = open-market sale, purple = grants, exercises, gifts and other non-market transactions. Marker size scales with the dollar value.
Shares held
Shares owned after each reported transaction on this company (direct holdings as reported).
Open-market buying and selling
by monthDollar value of open-market purchases (code P, up) and sales (code S, down) across all companies, by filing month. Grants, exercises and gifts are excluded.
Exposure by company
latestMost recently reported shares × current price. Faded bars (*) have had no filing in 3 years, so the person may no longer hold them. Click a bar to chart that company.
Filer Profile
13TH FLOOR
EVANSTON, IL 60201
Holdings By Company
| Symbol | Role | Shares | Price | Disclosed Exposure | Lifetime OM Net | Filings | Latest Filed |
|---|---|---|---|---|---|---|---|
| CRWV | 10%+ Owner | 1,891,986 | $61.39 | $116.15M | -$6.63B | 37 | 2026-08-14 |
| WHLRP | 10%+ Owner | 172,075 | $11.55 | $1.99M | -$38.8K | 2 | 2026-03-26 |
| Churchill Capital Corp VII (CVII.WS) Delisted | 10%+ Owner | 1,516,950 | $0.30 | $455.1K | -$8.5K | 1 | 2024-01-18 |
| TriSalus Life Sciences, Inc. (MTACW) Delisted | 10%+ Owner | 0 | $0.22 | $0 | $0 | 1 | 2023-06-14 |
Recent Filings
42 filings| Filed | Symbol | Action | Net Shares | Net $ | Link |
|---|---|---|---|---|---|
| 2026-08-14 | CRWV | Sell (S) | — | $0 | EDGAR |
| 2026-08-14 | CRWV | — | — | $0 | EDGAR |
| 2026-06-23 | CRWV | Other (J) | −800,000 | $0 | EDGAR |
| 2026-06-23 | CRWV | Other (J) | −510,000 | $0 | EDGAR |
| 2026-06-23 | CRWV | Other (J) | −274,400 | $0 | EDGAR |
| 2026-05-08 | CRWV | Sell (S) | −636,672 | -$82.71M | EDGAR |
| 2026-05-06 | CRWV | Sell (S) | −3,915,056 | -$499.86M | EDGAR |
| 2026-05-06 | CRWV | Sell (S) | −4,620,656 | -$588.15M | EDGAR |
| 2026-05-06 | CRWV | Sell (S) | — | $0 | EDGAR |
| 2026-05-06 | CRWV | Sell (S) | — | $0 | EDGAR |
Notice (144 / 144/A): Form 144 is a notice of intent to sell restricted/control stock under Rule 144, filed before the sale; 144/A is an amendment. Many notices are pre-scheduled under Rule 10b5-1 plans. A Form 4 with code S typically follows within a few days when the planned sale executes; missing follow-up Form 4s suggest the notice was cancelled or modified.