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, Q4 2024
Institutional positions in ACELYRIN, Inc. as of Dec 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
- 126
- +5 vs. Q3 2024
- Shares held
- 88.0M
- +766.9K (+0.9%) vs. Q3 2024
- Total value
- $276.4M
- −$153.6M (−35.7%) vs. Q3 2024
- New holders
- 19
- 44 more added
- Sold out
- 14
- 40 more reduced
1 institution that held it in Q3 2024 haven't filed for Q4 2024 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q3 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, Q4 2024
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| T. Rowe Price Investment Management, Inc. | 12,872,124 | $40.4M | 0.02% | +2,440,278+23.4% | Added |
| AyurMaya Capital Management Company, LP | 9,334,735 | $29.3M | 25.94% | 00.0% | Unchanged |
| BlackRock, Inc. | 6,020,868 | $18.9M | 0.00% | +38,494+0.6% | Added |
| Millennium Management LLC | 4,714,402 | $14.8M | 0.01% | −772,770−14.1% | Reduced |
| Citadel Advisors LLC | 4,211,916 | $13.2M | 0.01% | −2,311,390−35.4% | Reduced |
| Vanguard Group Inc | 4,080,010 | $12.8M | 0.00% | +13,021+0.3% | Added |
| OrbiMed Advisors LLC | 4,001,711 | $12.6M | 0.26% | 00.0% | Unchanged |
| venBio Partners LLC | 3,806,410 | $12.0M | 7.00% | −46,060−1.2% | Reduced |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $9.13M | 2.29% | 00.0% | Unchanged |
| Blue Owl Capital Holdings LP | 2,783,946 | $8.74M | 2.07% | −10,000−0.4% | Reduced |
| General Atlantic LLC | 2,695,327 | $8.46M | 0.30% | −194,341−6.7% | Reduced |
| Samsara BioCapital, LLC | 2,523,022 | $7.92M | 1.09% | 00.0% | Unchanged |
| Morgan Stanley | 2,323,521 | $7.30M | 0.00% | +537,068+30.1% | Added |
| Opaleye Management Inc. | 2,235,000 | $7.17M | 1.26% | +341,340+18.0% | Added |
| Palo Alto Investors LP | 1,792,895 | $5.63M | 0.87% | 00.0% | Unchanged |
| Siren, L.L.C. | 1,729,665 | $5.43M | 0.24% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 1,709,086 | $5.37M | 0.00% | +57,472+3.5% | Added |
| StemPoint Capital LP | 1,704,825 | $5.35M | 1.34% | +386,971+29.4% | Added |
| Alyeska Investment Group, L.P. | 1,515,878 | $4.76M | 0.02% | +1,515,878 | New |
| State Street Corp | 1,441,273 | $4.53M | 0.00% | +168,177+13.2% | Added |
| RTW Investments, LP | 978,310 | $3.07M | 0.05% | 00.0% | Unchanged |
| Kynam Capital Management, LP | 847,366 | $2.66M | 0.18% | 00.0% | Unchanged |
| Ikarian Capital, LLC | 676,608 | $2.12M | 0.61% | −466−0.1% | Reduced |
| Jacobs Levy Equity Management, Inc | 662,981 | $2.08M | 0.01% | −663,410−50.0% | Reduced |
| Northern Trust Corp | 630,051 | $1.98M | 0.00% | +23,130+3.8% | Added |
| JPMorgan Chase & Co | 618,127 | $1.94M | 0.00% | −232,534−27.3% | Reduced |
| Charles Schwab Investment Management Inc | 614,474 | $1.93M | 0.00% | +4,796+0.8% | Added |
| Marshall Wace, LLP | 572,048 | $1.80M | 0.00% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 569,910 | $1.79M | 0.00% | +47,988+9.2% | Added |
| Renaissance Technologies LLC | 466,921 | $1.47M | 0.00% | −67,897−12.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 450,000 | $1.41M | 0.00% | −95,476−17.5% | Reduced |
| Kennedy Capital Management, Inc. | 446,850 | $1.40M | 0.03% | −5,920−1.3% | Reduced |
| ADAR1 Capital Management, LLC | 444,967 | $1.40M | 0.29% | +391,467+731.7% | Added |
| TD Asset Management Inc | 267,656 | $840.4K | 0.00% | +93,276+53.5% | Added |
| Susquehanna Fundamental Investments, LLC | 237,465 | $745.6K | 0.01% | +237,465 | New |
| Exome Asset Management LLC | 234,435 | $736.1K | 0.55% | +234,435 | New |
| Ameriprise Financial Inc | 228,098 | $716.2K | 0.00% | −8,564−3.6% | Reduced |
| UBS Oconnor LLC | 211,938 | $665.5K | 0.02% | +48,214+29.4% | Added |
| Nuveen Asset Management, LLC | 202,239 | $635.0K | 0.00% | 00.0% | Unchanged |
| Bank of America Corp | 197,835 | $621.2K | 0.00% | +19,165+10.7% | Added |
| Hudson Bay Capital Management LP | 196,620 | $617.4K | 0.00% | −3,380−1.7% | Reduced |
| UBS Group AG | 187,005 | $587.2K | 0.00% | +148,199+381.9% | Added |
| Wellington Management Group LLP | 180,539 | $566.9K | 0.00% | +180,539 | New |
| Bank of New York Mellon Corp | 176,899 | $555.5K | 0.00% | +684+0.4% | Added |
| FMR LLC | 164,311 | $515.9K | 0.00% | +46,563+39.5% | Added |
| Almitas Capital LLC | 148,704 | $466.9K | 0.10% | +124,185+506.5% | Added |
| Blair William & Co | 138,595 | $435.2K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 134,680 | $423.0K | 0.00% | +134,680 | New |
| Stonepine Capital Management, LLC | 132,870 | $417.2K | 0.34% | +132,870 | New |
| Los Angeles Capital Management LLC | 122,003 | $383.1K | 0.00% | −20,690−14.5% | Reduced |
| Dimensional Fund Advisors LP | 118,241 | $371.3K | 0.00% | +118,241 | New |
| Barclays PLC | 116,644 | $366.3K | 0.00% | +20,236+21.0% | Added |
| Rhumbline Advisers | 108,243 | $339.9K | 0.00% | +1,862+1.8% | Added |
| Martingale Asset Management L P | 102,596 | $322.2K | 0.01% | +4,312+4.4% | Added |
| Acadian Asset Management LLC | 101,514 | $318.0K | 0.00% | −91,203−47.3% | Reduced |
| Public Employees Retirement System of Ohio | 97,347 | $305.7K | 0.00% | −5,000−4.9% | Reduced |
| Franklin Resources Inc | 90,554 | $284.3K | 0.00% | −38,037−29.6% | Reduced |
| Prelude Capital Management, LLC | 88,181 | $276.9K | 0.02% | +58,755+199.7% | Added |
| DAFNA Capital Management LLC | 87,989 | $276.3K | 0.07% | −514,905−85.4% | Reduced |
| Alps Advisors Inc | 81,129 | $254.7K | 0.00% | +3,883+5.0% | Added |
| American Century Companies Inc | 78,868 | $247.6K | 0.00% | +46,802+146.0% | Added |
| Algert Global LLC | 77,060 | $242.0K | 0.01% | +12,230+18.9% | Added |
| BNP Paribas Arbitrage, SA | 75,114 | $235.9K | 0.00% | +75,114 | New |
| Alliancebernstein L.P. | 73,670 | $231.3K | 0.00% | 00.0% | Unchanged |
| Deutsche Bank AG | 70,000 | $219.8K | 0.00% | +24,356+53.4% | Added |
| Russell Investments Group, Ltd. | 66,699 | $209.4K | 0.00% | −9,341−12.3% | Reduced |
| Citigroup Inc | 57,911 | $181.8K | 0.00% | +2,979+5.4% | Added |
| Wells Fargo & Company | 52,014 | $163.3K | 0.00% | +9,332+21.9% | Added |
| Tudor Investment Corp Et Al | 48,299 | $151.7K | 0.00% | −92−0.2% | Reduced |
| STRS Ohio | 44,300 | $139.1K | 0.00% | 00.0% | Unchanged |
| MetLife Investment Management | 42,852 | $134.6K | 0.00% | 00.0% | Unchanged |
| Mirae Asset Global ETFs Holdings Ltd. | 41,908 | $131.6K | 0.00% | +1,824+4.6% | Added |
| Corebridge Financial, Inc. | 36,288 | $113.9K | 0.00% | −2,740−7.0% | Reduced |
| Virtus Investment Advisers, Inc. | 35,700 | $112.1K | 0.09% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 34,824 | $109.3K | 0.00% | +6,688+23.8% | Added |
| SG Americas Securities, LLC | 30,488 | $96.0K | 0.00% | +3,733+14.0% | Added |
| Boothbay Fund Management, LLC | 29,828 | $93.7K | 0.00% | +10,554+54.8% | Added |
| Manufacturers Life Insurance Company, The | 28,104 | $88.2K | 0.00% | −701−2.4% | Reduced |
| Verition Fund Management LLC | 27,480 | $86.3K | 0.00% | −82,635−75.0% | Reduced |
| Thrivent Financial for Lutherans | 26,604 | $84.0K | 0.00% | −10,737−28.8% | Reduced |
| Price T Rowe Associates Inc | 26,738 | $84.0K | 0.00% | +3,266+13.9% | Added |
| Intech Investment Management LLC | 26,587 | $83.5K | 0.00% | +11,040+71.0% | Added |
| Invesco Ltd. | 25,766 | $80.9K | 0.00% | +2,777+12.1% | Added |
| ProShare Advisors LLC | 25,307 | $79.5K | 0.00% | +5,617+28.5% | Added |
| Royal Bank of Canada | 22,528 | $71.0K | 0.00% | +14,028+165.0% | Added |
| Voya Investment Management LLC | 22,282 | $70.0K | 0.00% | −2,741−11.0% | Reduced |
| PDT Partners, LLC | 21,860 | $68.6K | 0.01% | −58,684−72.9% | Reduced |
| China Universal Asset Management Co., Ltd. | 21,273 | $66.8K | 0.01% | +2,077+10.8% | Added |
| Virtus ETF Advisers LLC | 20,083 | $63.1K | 0.03% | −1,055−5.0% | Reduced |
| Two Sigma Advisers, LP | 16,700 | $52.4K | 0.00% | −65,400−79.7% | Reduced |
| HRT Financial LP | 16,021 | $50.0K | 0.00% | −78,784−83.1% | Reduced |
| New York State Common Retirement Fund | 15,512 | $48.7K | 0.00% | −7,305−32.0% | Reduced |
| Man Group plc | 15,193 | $47.7K | 0.00% | +1,578+11.6% | Added |
| Police & Firemen's Retirement System of New Jersey | 14,886 | $46.7K | 0.00% | +14,886 | New |
| Rpo LLC | 14,693 | $46.1K | 0.06% | +14,693 | New |
| Bank of Montreal | 14,532 | $45.6K | 0.00% | −134,103−90.2% | Reduced |
| Prudential Financial Inc | 14,130 | $44.4K | 0.00% | −62,600−81.6% | Reduced |
| Ausdal Financial Partners, Inc. | 12,800 | $40.2K | 0.00% | −6,500−33.7% | Reduced |
| HSBC Holdings PLC | 11,663 | $36.3K | 0.00% | +11,663 | New |
| 4WEALTH Advisors, Inc. | 11,212 | $35.2K | 0.04% | +11,212 | New |