Institutional Ownership
Atrium Therapeutics Inc
CUSIP 04965N104COMQ1 2026
13D / 13G Filings
0
Schedule 13D/13G on record
Beneficial Filers
0
Distinct reporting persons
Largest Stake
—
Max % of class reported
Institutional Holders
156
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
Schedule 13D (activist) & 13G (passive) 5%+ ownership filings
No 13D/13G filings on record yet
Schedule 13D/13G beneficial-ownership filings from 2020–present are ingested from SEC EDGAR. Coverage expands as the backfill and daily crawler run.
Top Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 1.21M | $16.11M |
| 2 | Ra Capital Management, L.P. | 864.1K | $11.55M |
| 3 | Tig Advisors, LLC | 607.6K | $8.12M |
| 4 | Pentwater Capital Management LP | 602.6K | $8.06M |
| 5 | O'Connor Alternative Investments LLC | 578.0K | $7.73M |
| 6 | Sessa Capital Im, L.P. | 551.4K | $7.37M |
| 7 | Goldman Sachs Group Inc | 349.9K | $4.68M |
| 8 | Farallon Capital Management LLC | 349.4K | $4.67M |
| 9 | Geode Capital Management, LLC | 319.8K | $4.28M |
| 10 | 683 Capital Management, LLC | 300.0K | $4.01M |