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 2025
Institutional positions in ACELYRIN, Inc. as of Mar 31, 2025. 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
SLRN is no longer listed, so this page shows Q1 2025. 13F filings for later quarters list far fewer holders.
- Institutional holders
- 106
- −19 vs. Q4 2024
- Shares held
- 73.9M
- −13.8M (−15.8%) vs. Q4 2024
- Total value
- $182.6M
- −$93.2M (−33.8%) vs. Q4 2024
- New holders
- 23
- 22 more added
- Sold out
- 42
- 41 more reduced
1 institution that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2025
Shares, value and share of portfolio for each institution holding ACELYRIN, Inc.; share changes are against Q4 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| IFP Advisors, Inc | 0 | $5 | 0.00% | 0 | Unchanged |
| The PNC Financial Services Group, Inc. | 71 | $175 | 0.00% | +18+34.0% | Added |
| Rothschild Investment LLC | 85 | $210 | 0.00% | −15−15.0% | Reduced |
| EverSource Wealth Advisors, LLC | 96 | $237 | 0.00% | +96 | New |
| True Wealth Design, LLC | 361 | $892 | 0.00% | +361 | New |
| BFSG, LLC | 400 | $988 | 0.00% | −1,500−78.9% | Reduced |
| Daiwa Securities Group Inc. | 398 | $1.00K | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 1,279 | $3.16K | 0.00% | +1,279 | New |
| Sterling Capital Management LLC | 1,311 | $3.24K | 0.00% | −1,028−44.0% | Reduced |
| Amalgamated Bank | 2,452 | $6.00K | 0.00% | 00.0% | Unchanged |
| GF Fund Management Co. Ltd. | 2,569 | $6.34K | 0.00% | +462+21.9% | Added |
| Mirae Asset Global Investments Co., Ltd. | 3,370 | $8.76K | 0.00% | +27+0.8% | Added |
| Tower Research Capital LLC (TRC) | 3,637 | $8.98K | 0.00% | −3,260−47.3% | Reduced |
| FMR LLC | 4,976 | $12.3K | 0.00% | −159,335−97.0% | Reduced |
| BNP Paribas Arbitrage, SA | 5,061 | $12.5K | 0.00% | −70,053−93.3% | Reduced |
| Royal Bank of Canada | 5,263 | $13.0K | 0.00% | −17,265−76.6% | Reduced |
| California State Teachers Retirement System | 5,289 | $13.1K | 0.00% | 00.0% | Unchanged |
| Legal & General Group Plc | 6,625 | $16.3K | 0.00% | 00.0% | Unchanged |
| Ameritas Investment Partners, Inc. | 7,243 | $17.9K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 7,662 | $18.9K | 0.00% | +5,117+201.1% | Added |
| FNY Investment Advisers, LLC | 10,000 | $24.0K | 0.01% | +10,000 | New |
| HighTower Advisors, LLC | 10,031 | $24.8K | 0.00% | −155−1.5% | Reduced |
| Quadrature Capital Ltd | 10,246 | $25.3K | 0.00% | +10,246 | New |
| Cerity Partners LLC | 10,419 | $25.7K | 0.00% | +10,419 | New |
| SEI Investments Co | 10,782 | $26.6K | 0.00% | 00.0% | Unchanged |
| Ausdal Financial Partners, Inc. | 12,800 | $31.6K | 0.00% | 00.0% | Unchanged |
| CWM, LLC | 13,090 | $32.0K | 0.00% | +12,933+8,237.6% | Added |
| Police & Firemen's Retirement System of New Jersey | 14,886 | $36.8K | 0.00% | 00.0% | Unchanged |
| Two Sigma Advisers, LP | 15,100 | $37.3K | 0.00% | −1,600−9.6% | Reduced |
| Bank of Montreal | 15,227 | $37.6K | 0.00% | +695+4.8% | Added |
| New York State Common Retirement Fund | 15,512 | $38.3K | 0.00% | 00.0% | Unchanged |
| CIBC World Markets Corp | 16,427 | $40.6K | 0.00% | +16,427 | New |
| Nisa Investment Advisors, LLC | 16,586 | $41.0K | 0.00% | +16,503+19,883.1% | Added |
| MetLife Investment Management | 18,493 | $45.7K | 0.00% | −24,359−56.8% | Reduced |
| China Universal Asset Management Co., Ltd. | 20,199 | $49.9K | 0.00% | −1,074−5.0% | Reduced |
| ProShare Advisors LLC | 20,570 | $50.8K | 0.00% | −4,737−18.7% | Reduced |
| Voya Investment Management LLC | 20,768 | $51.3K | 0.00% | −1,514−6.8% | Reduced |
| CSS LLC | 24,564 | $60.7K | 0.00% | +24,564 | New |
| Western Wealth Management, LLC | 25,000 | $61.8K | 0.00% | +25,000 | New |
| SG Americas Securities, LLC | 27,110 | $67.0K | 0.00% | −3,378−11.1% | Reduced |
| Manufacturers Life Insurance Company, The | 28,717 | $70.9K | 0.00% | +613+2.2% | Added |
| Mariner, LLC | 31,389 | $77.5K | 0.00% | +31,389 | New |
| Price T Rowe Associates Inc | 34,515 | $86.0K | 0.00% | +7,777+29.1% | Added |
| Prelude Capital Management, LLC | 36,220 | $89.5K | 0.01% | −51,961−58.9% | Reduced |
| Corebridge Financial, Inc. | 36,269 | $89.6K | 0.00% | −19−0.1% | Reduced |
| Bank of America Corp | 36,410 | $89.9K | 0.00% | −161,425−81.6% | Reduced |
| Mirae Asset Global ETFs Holdings Ltd. | 43,780 | $108.1K | 0.00% | +1,872+4.5% | Added |
| STRS Ohio | 44,300 | $109.4K | 0.00% | 00.0% | Unchanged |
| Dimensional Fund Advisors LP | 44,755 | $110.5K | 0.00% | −73,486−62.1% | Reduced |
| Virtus Investment Advisers, Inc. | 46,372 | $114.5K | 0.03% | +10,672+29.9% | Added |
| Yakira Capital Management, Inc. | 48,557 | $119.9K | 0.05% | +48,557 | New |
| Intech Investment Management LLC | 49,830 | $123.1K | 0.00% | +23,243+87.4% | Added |
| LMR Partners LLP | 50,000 | $123.5K | 0.00% | +50,000 | New |
| Wells Fargo & Company | 52,608 | $129.9K | 0.00% | +594+1.1% | Added |
| Marshall Wace, LLP | 53,100 | $131.2K | 0.00% | −518,948−90.7% | Reduced |
| Citigroup Inc | 53,629 | $132.5K | 0.00% | −4,282−7.4% | Reduced |
| Deutsche Bank AG | 61,539 | $152.0K | 0.00% | −8,461−12.1% | Reduced |
| HGC Investment Management Inc. | 70,425 | $173.9K | 0.06% | +70,425 | New |
| Alliancebernstein L.P. | 73,670 | $182.0K | 0.00% | 00.0% | Unchanged |
| Alps Advisors Inc | 74,640 | $184.4K | 0.00% | −6,489−8.0% | Reduced |
| Barclays PLC | 82,871 | $204.7K | 0.00% | −33,773−29.0% | Reduced |
| Invesco Ltd. | 85,520 | $211.2K | 0.00% | +59,754+231.9% | Added |
| Susquehanna International Group, LLP | 90,669 | $224.0K | 0.00% | +55,845+160.4% | Added |
| American Century Companies Inc | 91,390 | $225.7K | 0.00% | +12,522+15.9% | Added |
| Rhumbline Advisers | 102,174 | $252.4K | 0.00% | −6,069−5.6% | Reduced |
| XTX Topco Ltd | 103,047 | $254.5K | 0.01% | +92,678+893.8% | Added |
| UBS Group AG | 103,525 | $255.7K | 0.00% | −83,480−44.6% | Reduced |
| Los Angeles Capital Management LLC | 109,612 | $270.7K | 0.00% | −12,391−10.2% | Reduced |
| Franklin Resources Inc | 127,023 | $313.7K | 0.00% | +36,469+40.3% | Added |
| Blair William & Co | 138,595 | $342.3K | 0.00% | 00.0% | Unchanged |
| Monaco Asset Management SAM | 139,600 | $344.8K | 0.17% | +139,600 | New |
| Bridgeway Capital Management, LLC | 140,900 | $348.0K | 0.01% | +140,900 | New |
| Millennium Management LLC | 149,298 | $368.8K | 0.00% | −4,565,104−96.8% | Reduced |
| Stonepine Capital Management, LLC | 167,580 | $413.9K | 0.48% | +34,710+26.1% | Added |
| Bank of New York Mellon Corp | 173,277 | $428.0K | 0.00% | −3,622−2.0% | Reduced |
| Citadel Advisors LLC | 176,437 | $435.8K | 0.00% | −4,035,479−95.8% | Reduced |
| Wellington Management Group LLP | 179,150 | $442.5K | 0.00% | −1,389−0.8% | Reduced |
| AQR Capital Management LLC | 193,323 | $477.5K | 0.00% | +193,323 | New |
| Nuveen, LLC | 202,239 | $499.5K | 0.00% | +202,239 | New |
| Susquehanna Fundamental Investments, LLC | 273,412 | $675.3K | 0.01% | +35,947+15.1% | Added |
| Morgan Stanley | 275,815 | $681.3K | 0.00% | −2,047,706−88.1% | Reduced |
| Goldman Sachs Group Inc | 351,407 | $868.0K | 0.00% | −218,503−38.3% | Reduced |
| Towerview LLC | 540,000 | $1.33M | 0.96% | +540,000 | New |
| Charles Schwab Investment Management Inc | 544,575 | $1.35M | 0.00% | −69,899−11.4% | Reduced |
| Cantor Fitzgerald, L. P. | 588,664 | $1.45M | 0.05% | +588,664 | New |
| JPMorgan Chase & Co | 590,846 | $1.46M | 0.00% | −27,281−4.4% | Reduced |
| Northern Trust Corp | 598,151 | $1.48M | 0.00% | −31,900−5.1% | Reduced |
| Renaissance Technologies LLC | 599,800 | $1.48M | 0.00% | +132,879+28.5% | Added |
| Alyeska Investment Group, L.P. | 615,878 | $1.52M | 0.01% | −900,000−59.4% | Reduced |
| Balyasny Asset Management LLC | 1,305,015 | $3.22M | 0.01% | +1,305,015 | New |
| State Street Corp | 1,420,068 | $3.51M | 0.00% | −21,205−1.5% | Reduced |
| Opaleye Management Inc. | 1,615,000 | $3.99M | 0.89% | −620,000−27.7% | Reduced |
| Geode Capital Management, LLC | 1,773,818 | $4.38M | 0.00% | +64,732+3.8% | Added |
| Palo Alto Investors LP | 1,792,895 | $4.43M | 0.84% | 00.0% | Unchanged |
| Samsara BioCapital, LLC | 2,523,022 | $6.23M | 1.11% | 00.0% | Unchanged |
| General Atlantic LLC | 2,695,327 | $6.66M | 0.22% | 00.0% | Unchanged |
| Tybourne Capital Management (HK) Ltd | 2,906,629 | $7.18M | 30.48% | 00.0% | Unchanged |
| Velan Capital Investment Management LP | 3,366,945 | $8.32M | 8.56% | +3,366,945 | New |
| venBio Partners LLC | 3,806,410 | $9.40M | 7.61% | 00.0% | Unchanged |
| OrbiMed Advisors LLC | 4,001,711 | $9.88M | 0.24% | 00.0% | Unchanged |