DAY ONE BIOPHARMACEUTICALS I Equity Put is a security (CUSIP 23954D959) tracked across SEC portfolio filings. 6 institutional managers reported $28.2M on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| WATER ISLAND CAPITAL LLC | New York, NY | $18.0M | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $4.3M | — |
| JPMORGAN CHASE & CO | NEW YORK, NY | $4.1M | — |
| SIMPLEX TRADING, LLC | CHICAGO, IL | $1.9M | — |
| HRT FINANCIAL LP | NEW YORK, NY | $364 | 17,000 |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |