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, Q1 2024
Institutional positions in ACELYRIN, Inc. as of Mar 31, 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
- 109
- −1 vs. Q4 2023
- Shares held
- 90.9M
- +6.06M (+7.2%) vs. Q4 2023
- Total value
- $613.2M
- −$19.4M (−3.1%) vs. Q4 2023
- New holders
- 25
- 46 more added
- Sold out
- 26
- 27 more reduced
Compare with Q4 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, Q1 2024
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q4 2023.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Adage Capital Partners GP, L.L.C. | 3,280,000 | $22.1M | 0.04% | +3,100,000+1,722.2% | Added |
| venBio Partners LLC | 3,852,470 | $26.0M | 9.23% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 4,001,711 | $27.0M | 0.53% | 00.0% | Unchanged |
| Millennium Management LLC | 4,013,528 | $27.1M | 0.02% | +4,013,528 | New |
| BlackRock Inc. | 4,792,730 | $32.4M | 0.00% | +1,885,172+64.8% | Added |
| Vanguard Group Inc | 6,237,543 | $42.1M | 0.00% | +81,633+1.3% | Added |
| Citadel Advisors LLC | 7,028,837 | $47.4M | 0.05% | +554,789+8.6% | Added |
| FMR LLC | 7,079,210 | $47.8M | 0.00% | −1,743,061−19.8% | Reduced |
| AyurMaya Capital Management Company, LP | 9,334,735 | $63.0M | 100.00% | 00.0% | Unchanged |
| Janus Henderson Group PLC | 0 | $0 | 0.00% | −1,602,155−100.0% | Sold out |
| Decheng Capital LLC | 0 | $0 | 0.00% | −1,370,951−100.0% | Sold out |
| Logos Global Management LP | 0 | $0 | 0.00% | −1,250,000−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −577,492−100.0% | Sold out |
| Superstring Capital Management LP | 0 | $0 | 0.00% | −356,924−100.0% | Sold out |
| Vontobel Holding Ltd. | 0 | $0 | 0.00% | −325,549−100.0% | Sold out |
| Point72 Europe (London) LLP | 0 | $0 | 0.00% | −122,971−100.0% | Sold out |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −103,677−100.0% | Sold out |
| Squarepoint Ops LLC | 0 | $0 | 0.00% | −62,907−100.0% | Sold out |
| PDT Partners, LLC | 0 | $0 | 0.00% | −57,896−100.0% | Sold out |
| 683 Capital Management, LLC | 0 | $0 | 0.00% | −53,630−100.0% | Sold out |
| Alyeska Investment Group, L.P. | 0 | $0 | 0.00% | −50,070−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −49,500−100.0% | Sold out |
| Swiss National Bank | 0 | $0 | 0.00% | −38,300−100.0% | Sold out |
| State of Wisconsin Investment Board | 0 | $0 | 0.00% | −23,442−100.0% | Sold out |
| Y-Intercept (Hong Kong) Ltd | 0 | $0 | 0.00% | −20,565−100.0% | Sold out |
| Credit Suisse AG | 0 | $0 | 0.00% | −19,312−100.0% | Sold out |
| Mirae Asset Global Investments Co., Ltd. | 0 | $0 | 0.00% | −17,038−100.0% | Sold out |
| SG Americas Securities, LLC | 0 | $0 | 0.00% | −14,741−100.0% | Sold out |
| Dynamic Technology Lab Private Ltd | 0 | $0 | 0.00% | −14,431−100.0% | Sold out |
| Bridgefront Capital, LLC | 0 | $0 | 0.00% | −11,249−100.0% | Sold out |
| Zurcher Kantonalbank (Zurich Cantonalbank) | 0 | $0 | 0.00% | −10,716−100.0% | Sold out |
| Group One Trading, L.P. | 0 | $0 | 0.00% | −9,814−100.0% | Sold out |
| Sandia Investment Management LP | 0 | $0 | 0.00% | −5,980−100.0% | Sold out |
| Advisor Group Holdings, Inc. | 0 | $0 | 0.00% | −377−100.0% | Sold out |
| The PNC Financial Services Group, Inc. | 0 | $0 | 0.00% | −2−100.0% | Sold out |