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, Q2 2024
Institutional positions in ACELYRIN, Inc. as of Jun 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
- 113
- +5 vs. Q1 2024
- Shares held
- 87.0M
- −3.84M (−4.2%) vs. Q1 2024
- Total value
- $383.7M
- −$229.5M (−37.4%) vs. Q1 2024
- New holders
- 26
- 45 more added
- Sold out
- 21
- 25 more reduced
1 institution that held it in Q1 2024 haven't filed for Q2 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q1 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, Q2 2024
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q1 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| JPMorgan Chase & Co | 2,598,303 | $11.5M | 0.00% | +6,499+0.3% | Added |
| General Atlantic LLC | 2,889,668 | $12.7M | 0.40% | 00.0% | Unchanged |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $12.8M | 2.61% | 00.0% | Unchanged |
| Blue Owl Capital Holdings LP | 2,926,028 | $12.9M | 3.59% | +100,000+3.5% | Added |
| T. Rowe Price Investment Management, Inc. | 3,352,307 | $14.8M | 0.01% | +1,232,716+58.2% | Added |
| venBio Partners LLC | 3,852,470 | $17.0M | 7.34% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 4,001,711 | $17.6M | 0.38% | 00.0% | Unchanged |
| Millennium Management LLC | 4,642,056 | $20.5M | 0.02% | +628,528+15.7% | Added |
| FMR LLC | 4,714,172 | $20.8M | 0.00% | −2,365,038−33.4% | Reduced |
| Vanguard Group Inc | 4,743,401 | $20.9M | 0.00% | −1,494,142−24.0% | Reduced |
| BlackRock Inc. | 5,269,374 | $23.2M | 0.00% | +476,644+9.9% | Added |
| Citadel Advisors LLC | 7,410,564 | $32.7M | 0.03% | +381,727+5.4% | Added |
| AyurMaya Capital Management Company, LP | 9,334,735 | $41.2M | 22.53% | 00.0% | Unchanged |
| VR Adviser, LLC | 0 | $0 | 0.00% | −937,113−100.0% | Sold out |
| Eagle Asset Management Inc | 0 | $0 | 0.00% | −946,521−100.0% | Sold out |
| StemPoint Capital LP | 0 | $0 | 0.00% | −714,773−100.0% | Sold out |
| Sectoral Asset Management Inc | 0 | $0 | 0.00% | −244,000−100.0% | Sold out |
| Lighthouse Investment Partners, LLC | 0 | $0 | 0.00% | −115,808−100.0% | Sold out |
| Dark Forest Capital Management LP | 0 | $0 | 0.00% | −72,450−100.0% | Sold out |
| American International Group, Inc. | 0 | $0 | 0.00% | −35,793−100.0% | Sold out |
| Capstone Investment Advisors, LLC | 0 | $0 | 0.00% | −31,506−100.0% | Sold out |
| Virtu Financial LLC | 0 | $0 | 0.00% | −21,834−100.0% | Sold out |
| Simplex Trading, LLC | 0 | $0 | 0.00% | −18,429−100.0% | Sold out |
| Arrowstreet Capital, Limited Partnership | 0 | $0 | 0.00% | −17,821−100.0% | Sold out |
| Landscape Capital Management, L.L.C. | 0 | $0 | 0.00% | −17,517−100.0% | Sold out |
| Raymond James & Associates | 0 | $0 | 0.00% | −11,364−100.0% | Sold out |
| Belvedere Trading LLC | 0 | $0 | 0.00% | −5,731−100.0% | Sold out |
| Metropolitan Life Insurance Co | 0 | $0 | 0.00% | −3,931−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −3,000−100.0% | Sold out |
| GAMMA Investing LLC | 0 | $0 | 0.00% | −678−100.0% | Sold out |
| Lindbrook Capital, LLC | 0 | $0 | 0.00% | −170−100.0% | Sold out |
| Comerica Bank | 0 | $0 | 0.00% | −53−100.0% | Sold out |
| Institutional & Family Asset Management, LLC | 0 | $0 | 0.00% | −16−100.0% | Sold out |
| Nelson, Van Denburg & Campbell Wealth Management Group, LLC | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Cutler Group LP | – | – | – | – | Not filed |