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 2024
Institutional positions in ACELYRIN, Inc. as of Sep 30, 2024. 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
- 122
- +11 vs. Q2 2024
- Shares held
- 87.2M
- +5.66M (+6.9%) vs. Q2 2024
- Total value
- $430.2M
- +$70.4M (+19.6%) vs. Q2 2024
- New holders
- 23
- 43 more added
- Sold out
- 12
- 35 more reduced
2 institutions that held it in Q2 2024 haven't filed for Q3 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2024: 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 2024
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q2 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 850,661 | $4.19M | 0.00% | −1,747,642−67.3% | Reduced |
| RTW Investments, LP | 978,310 | $4.82M | 0.07% | 00.0% | Unchanged |
| State Street Corp | 1,273,096 | $6.28M | 0.00% | +116,094+10.0% | Added |
| StemPoint Capital LP | 1,317,854 | $6.50M | 1.95% | +1,317,854 | New |
| Jacobs Levy Equity Management, Inc | 1,326,391 | $6.54M | 0.03% | −153,465−10.4% | Reduced |
| Geode Capital Management, LLC | 1,651,614 | $8.14M | 0.00% | +388,631+30.8% | Added |
| Siren, L.L.C. | 1,729,665 | $8.53M | 0.43% | +1,729,665 | New |
| Morgan Stanley | 1,786,453 | $8.81M | 0.00% | +533,637+42.6% | Added |
| Palo Alto Investors LP | 1,792,895 | $8.84M | 1.15% | +77,715+4.5% | Added |
| Opaleye Management Inc. | 1,893,660 | $9.34M | 1.56% | +313,660+19.9% | Added |
| Samsara BioCapital, LLC | 2,523,022 | $12.4M | 2.39% | 00.0% | Unchanged |
| Blue Owl Capital Holdings LP | 2,793,946 | $13.8M | 2.67% | −132,082−4.5% | Reduced |
| General Atlantic LLC | 2,889,668 | $14.2M | 0.41% | 00.0% | Unchanged |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $14.3M | 4.02% | 00.0% | Unchanged |
| venBio Partners LLC | 3,852,470 | $19.0M | 9.77% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 4,001,711 | $19.7M | 0.36% | 00.0% | Unchanged |
| Vanguard Group Inc | 4,066,989 | $20.1M | 0.00% | −676,412−14.3% | Reduced |
| Millennium Management LLC | 5,487,172 | $27.1M | 0.02% | +845,116+18.2% | Added |
| BlackRock, Inc. | 5,982,374 | $29.5M | 0.00% | +5,982,374 | New |
| Citadel Advisors LLC | 6,523,306 | $32.2M | 0.03% | −887,258−12.0% | Reduced |
| AyurMaya Capital Management Company, LP | 9,334,735 | $46.0M | 28.81% | 00.0% | Unchanged |
| T. Rowe Price Investment Management, Inc. | 10,431,846 | $51.4M | 0.03% | +7,079,539+211.2% | Added |
| Artal Group S.A. | 0 | $0 | 0.00% | −2,020,888−100.0% | Sold out |
| ExodusPoint Capital Management, LP | 0 | $0 | 0.00% | −189,578−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −123,470−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −60,330−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −43,300−100.0% | Sold out |
| EntryPoint Capital, LLC | 0 | $0 | 0.00% | −25,830−100.0% | Sold out |
| Ghisallo Capital Management LLC | 0 | $0 | 0.00% | −17,500−100.0% | Sold out |
| Sherbrooke Park Advisers LLC | 0 | $0 | 0.00% | −16,839−100.0% | Sold out |
| Oxford Asset Management LLP | 0 | $0 | 0.00% | −12,276−100.0% | Sold out |
| Principal Financial Group Inc | 0 | $0 | 0.00% | −11,038−100.0% | Sold out |
| Catalyst Funds Management Pty Ltd | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| Redwood Wealth Management Group, LLC | 0 | $0 | 0.00% | −1,000−100.0% | Sold out |
| BlackRock Inc. | – | – | – | – | Not filed |
| Susquehanna Fundamental Investments, LLC | – | – | – | – | Not filed |