ACELYRIN, Inc.
SLRNDelisted May 21, 2025- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001962918
ACELYRIN, Inc. was delisted on May 21, 2025; its insiders filed their last Form 4 on May 23, 2025; 106 institutions reported holding it in 13F filings for Q1 2025, worth $182.6M in total; no superinvestor held it.
13F holders, Q3 2023
Institutional positions in ACELYRIN, Inc. as of Sep 30, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 102
- +20 vs. Q2 2023
- Shares held
- 83.8M
- +6.63M (+8.6%) vs. Q2 2023
- Total value
- $847.0M
- −$755.8M (−47.2%) vs. Q2 2023
- New holders
- 48
- 20 more added
- Sold out
- 28
- 23 more reduced
Compare with Q2 2023: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting SLRN on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 0 | $0 |
| Q1 2026 | 0 | $0 |
| Q4 2025 | 0 | $0 |
| Q3 2025 | 0 | $0 |
| Q2 2025 | 2 | $704 |
| Q1 2025 | 106 | $182.6M |
| Q4 2024 | 126 | $276.4M |
| Q3 2024 | 122 | $430.2M |
| Q2 2024 | 113 | $383.7M |
| Q1 2024 | 109 | $613.2M |
| Q4 2023 | 110 | $632.6M |
| Q3 2023 | 102 | $847.0M |
| Q2 2023 | 82 | $1.60B |
| Q1 2023 | 0 | $0 |
| Q4 2022 | 0 | $0 |
| Q3 2022 | 0 | $0 |
| Q2 2022 | 0 | $0 |
| Q1 2022 | 0 | $0 |
| Q4 2021 | 0 | $0 |
| Q3 2021 | 0 | $0 |
| Q2 2021 | 0 | $0 |
| Q1 2021 | 0 | $0 |
Institutions, Q3 2023
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q2 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| FMR LLC | 8,961,726 | $89.9M | 0.01% | +1,505,488+20.2% | Added |
| AyurMaya Capital Management Company, LP | 9,334,735 | $94.9M | 100.00% | 00.0% | Unchanged |
| Wellington Management Group LLP | 0 | $0 | 0.00% | −1,048,279−100.0% | Sold out |
| Avidity Partners Management LP | 0 | $0 | 0.00% | −750,000−100.0% | Sold out |
| Millennium Management LLC | 0 | $0 | 0.00% | −732,020−100.0% | Sold out |
| Deerfield Management Company, L.P. (Series C) | 0 | $0 | 0.00% | −650,000−100.0% | Sold out |
| Braidwell LP | 0 | $0 | 0.00% | −500,000−100.0% | Sold out |
| Redmile Group, LLC | 0 | $0 | 0.00% | −364,493−100.0% | Sold out |
| Balyasny Asset Management LLC | 0 | $0 | 0.00% | −233,398−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −212,323−100.0% | Sold out |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −201,017−100.0% | Sold out |
| Jennison Associates LLC | 0 | $0 | 0.00% | −200,000−100.0% | Sold out |
| Blackstone Group Inc. | 0 | $0 | 0.00% | −175,000−100.0% | Sold out |
| Boothbay Fund Management, LLC | 0 | $0 | 0.00% | −117,536−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −111,077−100.0% | Sold out |
| Bank of Montreal | 0 | $0 | 0.00% | −93,315−100.0% | Sold out |
| Holocene Advisors, LP | 0 | $0 | 0.00% | −63,421−100.0% | Sold out |
| Rokos Capital Management LLP | 0 | $0 | 0.00% | −57,500−100.0% | Sold out |
| Kennedy Capital Management, Inc. | 0 | $0 | 0.00% | −55,719−100.0% | Sold out |
| Davidson Kempner Capital Management LP | 0 | $0 | 0.00% | −49,680−100.0% | Sold out |
| Point72 Middle East FZE | 0 | $0 | 0.00% | −37,274−100.0% | Sold out |
| Federated Hermes, Inc. | 0 | $0 | 0.00% | −30,000−100.0% | Sold out |
| Gilder Gagnon Howe & Co LLC | 0 | $0 | 0.00% | −28,483−100.0% | Sold out |
| Greenland Capital Management LP | 0 | $0 | 0.00% | −16,730−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −15,426−100.0% | Sold out |
| Zimmer Partners, LP | 0 | $0 | 0.00% | −12,000−100.0% | Sold out |
| Jane Street Group, LLC | 0 | $0 | 0.00% | −9,695−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −3,511−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −215−100.0% | Sold out |
| Foster Dykema Cabot & Co Inc | 0 | $0 | 0.00% | −51−100.0% | Sold out |