ACELYRIN, Inc.
SLRNDelisted- Industry
- Pharmaceutical Preparations
- SEC CIK
- 0001962918
ACELYRIN, Inc. was delisted in 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 |
|---|---|---|---|---|---|
| AyurMaya Capital Management Company, LP | 9,334,735 | $41.2M | 22.53% | 00.0% | Unchanged |
| Citadel Advisors LLC | 7,410,564 | $32.7M | 0.03% | +381,727+5.4% | Added |
| BlackRock Inc. | 5,269,374 | $23.2M | 0.00% | +476,644+9.9% | Added |
| Vanguard Group Inc | 4,743,401 | $20.9M | 0.00% | −1,494,142−24.0% | Reduced |
| FMR LLC | 4,714,172 | $20.8M | 0.00% | −2,365,038−33.4% | Reduced |
| Millennium Management LLC | 4,642,056 | $20.5M | 0.02% | +628,528+15.7% | Added |
| OrbiMed Advisors LLC | 4,001,711 | $17.6M | 0.38% | 00.0% | Unchanged |
| venBio Partners LLC | 3,852,470 | $17.0M | 7.34% | 00.0% | Unchanged |
| T. Rowe Price Investment Management, Inc. | 3,352,307 | $14.8M | 0.01% | +1,232,716+58.2% | Added |
| Blue Owl Capital Holdings LP | 2,926,028 | $12.9M | 3.59% | +100,000+3.5% | Added |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $12.8M | 2.61% | 00.0% | Unchanged |
| General Atlantic LLC | 2,889,668 | $12.7M | 0.40% | 00.0% | Unchanged |
| JPMorgan Chase & Co | 2,598,303 | $11.5M | 0.00% | +6,499+0.3% | Added |
| Samsara BioCapital, LLC | 2,523,022 | $11.1M | 2.33% | 00.0% | Unchanged |
| Artal Group S.A. | 2,020,888 | $8.91M | 0.23% | −384,255−16.0% | Reduced |
| Woodline Partners LP | 1,984,810 | $8.75M | 0.08% | +963,606+94.4% | Added |
| Palo Alto Investors LP | 1,715,180 | $7.56M | 0.88% | 00.0% | Unchanged |
| Opaleye Management Inc. | 1,580,000 | $6.97M | 1.59% | 00.0% | Unchanged |
| Jacobs Levy Equity Management, Inc | 1,479,856 | $6.53M | 0.03% | +893,110+152.2% | Added |
| Ikarian Capital, LLC | 1,475,074 | $6.51M | 2.03% | −89,266−5.7% | Reduced |
| Adage Capital Partners GP, L.L.C. | 1,400,000 | $6.17M | 0.01% | −1,880,000−57.3% | Reduced |
| Geode Capital Management, LLC | 1,262,983 | $5.57M | 0.00% | +32,988+2.7% | Added |
| Morgan Stanley | 1,252,816 | $5.52M | 0.00% | +587,153+88.2% | Added |
| State Street Corp | 1,157,002 | $5.10M | 0.00% | +28,682+2.5% | Added |
| RTW Investments, LP | 978,310 | $4.31M | 0.07% | 00.0% | Unchanged |
| Kynam Capital Management, LP | 831,310 | $3.67M | 0.38% | +434,931+109.7% | Added |
| Goldman Sachs Group Inc | 799,632 | $3.53M | 0.00% | +43,732+5.8% | Added |
| DAFNA Capital Management LLC | 693,609 | $3.06M | 0.73% | +491,022+242.4% | Added |
| Marshall Wace, LLP | 603,871 | $2.66M | 0.00% | 00.0% | Unchanged |
| Kennedy Capital Management, Inc. | 522,259 | $2.30M | 0.05% | +35,699+7.3% | Added |
| Northern Trust Corp | 503,452 | $2.22M | 0.00% | −15,632−3.0% | Reduced |
| Renaissance Technologies LLC | 397,618 | $1.75M | 0.00% | +272,600+218.0% | Added |
| Almitas Capital LLC | 376,116 | $1.66M | 0.69% | +376,116 | New |
| Charles Schwab Investment Management Inc | 336,074 | $1.48M | 0.00% | −4,797−1.4% | Reduced |
| Ameriprise Financial Inc | 257,795 | $1.14M | 0.00% | +67,092+35.2% | Added |
| Bank of New York Mellon Corp | 223,395 | $985.2K | 0.00% | +41,058+22.5% | Added |
| Polar Asset Management Partners Inc. | 222,400 | $980.8K | 0.03% | 00.0% | Unchanged |
| Jane Street Group, LLC | 204,037 | $899.8K | 0.00% | −165,159−44.7% | Reduced |
| Two Sigma Advisers, LP | 200,400 | $883.8K | 0.00% | +200,400 | New |
| Nuveen Asset Management, LLC | 191,457 | $844.3K | 0.00% | 00.0% | Unchanged |
| ExodusPoint Capital Management, LP | 189,578 | $836.0K | 0.01% | +149,197+369.5% | Added |
| Susquehanna Fundamental Investments, LLC | 160,167 | $706.3K | 0.02% | +160,167 | New |
| Los Angeles Capital Management LLC | 157,093 | $692.8K | 0.00% | +157,093 | New |
| Blair William & Co | 138,595 | $611.2K | 0.00% | 00.0% | Unchanged |
| Acadian Asset Management LLC | 134,184 | $590.0K | 0.00% | +134,184 | New |
| Two Sigma Investments, LP | 123,470 | $544.5K | 0.00% | +123,470 | New |
| Rhumbline Advisers | 108,384 | $478.0K | 0.00% | +21,859+25.3% | Added |
| PDT Partners, LLC | 103,853 | $458.0K | 0.04% | +103,853 | New |
| Franklin Resources Inc | 93,949 | $414.3K | 0.00% | −1,950,172−95.4% | Reduced |
| Cubist Systematic Strategies, LLC | 90,022 | $397.0K | 0.01% | +55,141+158.1% | Added |
| Russell Investments Group, Ltd. | 82,873 | $365.5K | 0.00% | +55,765+205.7% | Added |
| HRT Financial LP | 82,828 | $365.0K | 0.00% | +82,828 | New |
| UBS Oconnor LLC | 81,412 | $359.0K | 0.01% | +10,000+14.0% | Added |
| Squarepoint Ops LLC | 78,023 | $344.1K | 0.00% | +78,023 | New |
| Alps Advisors Inc | 77,250 | $340.7K | 0.00% | +8,591+12.5% | Added |
| Alliancebernstein L.P. | 73,670 | $324.9K | 0.00% | +16,940+29.9% | Added |
| Verition Fund Management LLC | 71,015 | $313.2K | 0.00% | +60,166+554.6% | Added |
| Public Employees Retirement System of Ohio | 66,193 | $291.9K | 0.00% | +37,775+132.9% | Added |
| Prudential Financial Inc | 61,430 | $270.9K | 0.00% | +14,138+29.9% | Added |
| Dynamic Technology Lab Private Ltd | 60,330 | $266.0K | 0.03% | +60,330 | New |
| Prelude Capital Management, LLC | 57,307 | $252.7K | 0.02% | +16,300+39.7% | Added |
| Bank of America Corp | 55,134 | $243.1K | 0.00% | −38,439−41.1% | Reduced |
| Shay Capital LLC | 54,500 | $240.3K | 0.07% | +27,273+100.2% | Added |
| ADAR1 Capital Management, LLC | 50,521 | $222.8K | 0.04% | +35,500+236.3% | Added |
| STRS Ohio | 44,300 | $195.4K | 0.00% | +4,500+11.3% | Added |
| XTX Topco Ltd | 43,300 | $191.0K | 0.02% | +43,300 | New |
| MetLife Investment Management | 42,852 | $189.0K | 0.00% | +4,651+12.2% | Added |
| Boothbay Fund Management, LLC | 41,986 | $185.2K | 0.01% | −2,657−6.0% | Reduced |
| Corebridge Financial, Inc. | 39,269 | $173.2K | 0.00% | +39,269 | New |
| Point72 Asset Management, L.P. | 37,542 | $165.6K | 0.00% | −185,958−83.2% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 37,421 | $165.0K | 0.00% | +37,421 | New |
| New York State Common Retirement Fund | 37,417 | $165.0K | 0.00% | +4,988+15.4% | Added |
| Thrivent Financial for Lutherans | 37,341 | $164.0K | 0.00% | +37,341 | New |
| Balyasny Asset Management LLC | 36,377 | $160.4K | 0.00% | −16,946−31.8% | Reduced |
| Wells Fargo & Company | 34,243 | $151.0K | 0.00% | −3,591−9.5% | Reduced |
| Deutsche Bank AG | 33,074 | $145.9K | 0.00% | −205−0.6% | Reduced |
| Susquehanna International Group, LLP | 32,480 | $143.2K | 0.00% | −42,107−56.5% | Reduced |
| Citigroup Inc | 31,884 | $140.6K | 0.00% | +18,628+140.5% | Added |
| Barclays PLC | 31,220 | $137.7K | 0.00% | −761,950−96.1% | Reduced |
| UBS Group AG | 29,985 | $132.2K | 0.00% | −221,058−88.1% | Reduced |
| Manufacturers Life Insurance Company, The | 29,769 | $131.3K | 0.00% | +4,163+16.3% | Added |
| EntryPoint Capital, LLC | 25,830 | $113.9K | 0.05% | +14,797+134.1% | Added |
| Voya Investment Management LLC | 25,016 | $110.3K | 0.00% | +2,254+9.9% | Added |
| Invesco Ltd. | 24,117 | $106.4K | 0.00% | −1,956−7.5% | Reduced |
| Price T Rowe Associates Inc | 22,944 | $102.0K | 0.00% | +2,241+10.8% | Added |
| Virtus ETF Advisers LLC | 20,763 | $91.6K | 0.04% | +8,862+74.5% | Added |
| Ausdal Financial Partners, Inc. | 19,300 | $85.1K | 0.01% | 00.0% | Unchanged |
| Ghisallo Capital Management LLC | 17,500 | $77.2K | 0.01% | −17,500−50.0% | Reduced |
| Sherbrooke Park Advisers LLC | 16,839 | $74.3K | 0.01% | +4,924+41.3% | Added |
| ProShare Advisors LLC | 15,841 | $69.9K | 0.00% | −4,030−20.3% | Reduced |
| Nisa Investment Advisors, LLC | 14,081 | $62.1K | 0.00% | +14,057+58,570.8% | Added |
| Oxford Asset Management LLP | 12,276 | $54.1K | 0.05% | +12,276 | New |
| China Universal Asset Management Co., Ltd. | 11,636 | $51.3K | 0.01% | −7,082−37.8% | Reduced |
| SG Americas Securities, LLC | 11,654 | $51.0K | 0.00% | +11,654 | New |
| Principal Financial Group Inc | 11,038 | $48.7K | 0.00% | +11,038 | New |
| Tower Research Capital LLC (TRC) | 10,700 | $47.2K | 0.00% | +10,354+2,992.5% | Added |
| US Bancorp | 9,518 | $42.0K | 0.00% | +4,241+80.4% | Added |
| Royal Bank of Canada | 8,115 | $36.0K | 0.00% | +4,512+125.2% | Added |
| Ameritas Investment Partners, Inc. | 7,243 | $31.9K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 5,953 | $26.2K | 0.00% | −708−10.6% | Reduced |