Acelyrin (SLRN) Institutional Ownership

$2.27 0.00 (0.00%)

As of 05/21/2025

Current Institutional Ownership Percentage: 87.31%
Number of Institutional Buyers (last 12 months): 65
Total Institutional Inflows (last 12 months): $50.18M

Number of Institutional Sellers (last 12 months): 37
Total Institutional Outflows (last 12 months): $71.51M

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SLRN Institutional Buying and Selling by Quarter

Acelyrin Major Shareholders & Ownership History

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Reporting Date	Major Shareholder Name	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
5/29/2025	Rhumbline Advisers	102,174	$252K	0.0%	-5.6%	0.101%
5/28/2025	Strs Ohio	44,300	$109K	0.0%	N/A	0.044%
5/16/2025	Goldman Sachs Group Inc.	351,407	$868K	0.0%	-38.3%	0.348%
5/16/2025	HGC Investment Management Inc.	70,425	$174K	0.1%	N/A	0.070%
5/16/2025	AQR Capital Management LLC	193,323	$478K	0.0%	N/A	0.192%
5/16/2025	Alyeska Investment Group L.P.	615,878	$1.52M	0.0%	-59.4%	0.610%
5/15/2025	Velan Capital Investment Management LP	3,366,945	$8.32M	8.6%	N/A	3.337%
5/14/2025	MetLife Investment Management LLC	18,493	$46K	0.0%	-56.8%	0.018%
5/14/2025	Stonepine Capital Management LLC	167,580	$414K	0.4%	+26.1%	0.166%
5/14/2025	T. Rowe Price Investment Management Inc.	4,649,865	$11.49M	0.0%	-63.9%	4.608%
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5/13/2025	American Century Companies Inc.	91,390	$226K	0.0%	+15.9%	0.091%
5/12/2025	Nuveen LLC	202,239	$500K	0.0%	N/A	0.200%
5/12/2025	Invesco Ltd.	85,520	$211K	0.0%	+231.9%	0.085%
5/9/2025	Deutsche Bank AG	61,539	$152K	0.0%	-12.1%	0.061%
5/9/2025	Charles Schwab Investment Management Inc.	544,575	$1.35M	0.0%	-11.4%	0.540%
5/8/2025	Monaco Asset Management SAM	139,600	$345K	0.1%	N/A	0.138%
5/8/2025	XTX Topco Ltd	103,047	$255K	0.0%	+893.8%	0.102%
5/6/2025	Towerview LLC	540,000	$1.33M	1.0%	N/A	0.535%
5/6/2025	Tabor Asset Management LP	48,557	$120K	0.0%	N/A	0.048%
5/5/2025	Tabor Asset Management LP	48,557	$120K	0.0%	N/A	0.048%
5/1/2025	CWM LLC	13,090	$32K	0.0%	+8,237.6%	0.013%
4/30/2025	Cerity Partners LLC	10,419	$26K	0.0%	N/A	0.010%
4/30/2025	Alps Advisors Inc.	74,640	$184K	0.0%	-8.0%	0.074%
4/30/2025	Nisa Investment Advisors LLC	16,586	$41K	0.0%	+19,883.1%	0.016%
4/23/2025	Western Wealth Management LLC	25,000	$62K	0.0%	N/A	0.025%
4/8/2025	Rhumbline Advisers	102,174	$252K	0.0%	-5.6%	0.101%
3/24/2025	Wellington Management Group LLP	180,539	$567K	0.0%	N/A	0.179%
2/19/2025	Public Employees Retirement System of Ohio	97,347	$306K	0.0%	-4.9%	0.097%
2/17/2025	venBio Partners LLC	3,806,410	$11.95M	7.0%	-1.2%	3.794%
2/17/2025	Two Sigma Advisers LP	16,700	$52K	0.0%	-79.7%	0.017%
2/17/2025	Stonepine Capital Management LLC	132,870	$417K	0.3%	N/A	0.132%
2/17/2025	Stempoint Capital LP	1,704,825	$5.35M	1.3%	+29.4%	1.699%
2/17/2025	ProShare Advisors LLC	25,307	$79K	0.0%	+28.5%	0.025%
2/17/2025	OCONNOR A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS LLC	211,938	$665K	0.1%	+29.4%	0.211%
2/17/2025	Millennium Management LLC	4,714,402	$14.80M	0.0%	-14.1%	4.699%
2/17/2025	Jacobs Levy Equity Management Inc.	662,981	$2.08M	0.0%	-50.0%	0.661%
2/17/2025	Deutsche Bank AG	70,000	$220K	0.0%	+53.4%	0.070%
2/17/2025	DAFNA Capital Management LLC	87,989	$276K	0.1%	-85.4%	0.088%
2/17/2025	Bank of America Corp DE	197,835	$621K	0.0%	+10.7%	0.197%
2/17/2025	BNP Paribas Financial Markets	75,114	$236K	0.0%	N/A	0.075%
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2/17/2025	Ameriprise Financial Inc.	228,098	$716K	0.0%	-3.6%	0.227%
2/17/2025	Algert Global LLC	77,060	$242K	0.0%	+18.9%	0.077%
2/17/2025	Alyeska Investment Group L.P.	1,515,878	$4.76M	0.0%	N/A	1.511%
2/17/2025	Almitas Capital LLC	148,704	$467K	0.1%	+506.5%	0.148%
2/17/2025	4WEALTH Advisors Inc.	11,212	$35K	0.0%	N/A	0.011%
2/14/2025	Jane Street Group LLC	10,031	$31K	0.0%	-88.8%	0.010%
2/14/2025	PDT Partners LLC	21,860	$69K	0.0%	-72.9%	0.022%
2/14/2025	Northern Trust Corp	630,051	$1.98M	0.0%	+3.8%	0.628%
2/14/2025	Boothbay Fund Management LLC	29,828	$94K	0.0%	+54.8%	0.030%
2/14/2025	Susquehanna Fundamental Investments LLC	237,465	$746K	0.0%	N/A	0.237%
2/14/2025	Blue Owl Capital Holdings LP	2,783,946	$8.74M	2.1%	-0.4%	2.775%
2/14/2025	Adage Capital Partners GP L.L.C.	450,000	$1.41M	0.0%	-17.5%	0.449%
2/14/2025	T. Rowe Price Investment Management Inc.	12,872,124	$40.42M	0.0%	+23.4%	12.830%
2/14/2025	Hsbc Holdings PLC	11,663	$36K	0.0%	N/A	0.012%
2/14/2025	Dimensional Fund Advisors LP	118,241	$371K	0.0%	N/A	0.118%
2/13/2025	XTX Topco Ltd	10,369	$33K	0.0%	N/A	0.010%
2/13/2025	Barclays PLC	116,644	$366K	0.0%	+21.0%	0.116%
2/13/2025	Kennedy Capital Management LLC	446,850	$1.40M	0.0%	-1.3%	0.445%
2/13/2025	Renaissance Technologies LLC	466,921	$1.47M	0.0%	-12.7%	0.465%
2/13/2025	ADAR1 Capital Management LLC	444,967	$1.40M	0.3%	+731.7%	0.444%
2/13/2025	Bank of Montreal Can	14,532	$46K	0.0%	-90.2%	0.014%
2/13/2025	Russell Investments Group Ltd.	66,699	$209K	0.0%	-12.3%	0.066%
2/13/2025	Wells Fargo & Company MN	52,014	$163K	0.0%	+21.9%	0.052%
2/12/2025	RPO LLC	14,693	$46K	0.0%	N/A	0.015%
2/12/2025	ExodusPoint Capital Management LP	134,680	$423K	0.0%	N/A	0.134%
2/12/2025	Geode Capital Management LLC	1,709,086	$5.37M	0.0%	+3.5%	1.703%
2/12/2025	Franklin Resources Inc.	90,554	$284K	0.0%	-29.6%	0.090%
2/12/2025	Wellington Management Group LLP	180,539	$567K	0.0%	N/A	0.180%
2/12/2025	JPMorgan Chase & Co.	618,127	$1.94M	0.0%	-27.3%	0.616%
2/12/2025	Ausdal Financial Partners Inc.	12,800	$40K	0.0%	-33.7%	0.013%
2/11/2025	Prudential Financial Inc.	14,130	$44K	0.0%	-81.6%	0.014%
2/11/2025	American Century Companies Inc.	78,868	$248K	0.0%	+146.0%	0.079%
2/11/2025	Intech Investment Management LLC	26,587	$83K	0.0%	+71.0%	0.026%
2/10/2025	Thrivent Financial for Lutherans	26,604	$84K	0.0%	-28.8%	0.027%
2/7/2025	General Atlantic L.P.	2,695,327	$8.46M	0.3%	-6.7%	2.686%
2/4/2025	Los Angeles Capital Management LLC	122,003	$383K	0.0%	-14.5%	0.122%
1/31/2025	New York State Common Retirement Fund	15,512	$49K	0.0%	-32.0%	0.015%
12/26/2024	JPMorgan Chase & Co.	850,661	$4.19M	0.0%	-67.3%	0.848%
11/27/2024	Franklin Resources Inc.	128,591	$634K	0.0%	+36.9%	0.128%
11/20/2024	Virtu Financial LLC	10,080	$50K	0.0%	N/A	0.010%
11/19/2024	Barclays PLC	96,408	$475K	0.0%	+208.8%	0.096%
11/16/2024	Geode Capital Management LLC	1,651,614	$8.14M	0.0%	+30.8%	1.655%
11/15/2024	Barclays PLC	96,408	$475K	0.0%	+208.8%	0.097%
11/15/2024	Public Employees Retirement System of Ohio	102,347	$505K	0.0%	+54.6%	0.103%
11/15/2024	Jane Street Group LLC	89,800	$443K	0.0%	-56.0%	0.090%
11/15/2024	Virtus Investment Advisers Inc.	35,700	$176K	0.1%	N/A	0.036%
11/15/2024	State Street Corp	1,273,096	$6.28M	0.0%	+10.0%	1.276%
11/15/2024	Point72 Asset Management L.P.	250,300	$1.23M	0.0%	+566.7%	0.251%
11/15/2024	Polar Asset Management Partners Inc.	71,700	$353K	0.0%	-67.8%	0.072%
11/15/2024	Ikarian Capital LLC	677,074	$3.34M	0.4%	-54.1%	0.678%
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11/15/2024	Jacobs Levy Equity Management Inc.	1,326,391	$6.54M	0.0%	-10.4%	1.329%
11/15/2024	HighTower Advisors LLC	10,228	$50K	0.0%	N/A	0.010%
11/14/2024	PDT Partners LLC	80,544	$397K	0.0%	-22.4%	0.081%
11/14/2024	Verition Fund Management LLC	110,115	$543K	0.0%	+55.1%	0.110%
11/14/2024	Martingale Asset Management L P	98,284	$485K	0.0%	N/A	0.098%
11/14/2024	Acuta Capital Partners LLC	364,000	$1.80M	1.5%	N/A	0.365%
11/13/2024	FMR LLC	117,748	$580K	0.0%	-97.5%	0.118%
11/12/2024	Charles Schwab Investment Management Inc.	609,678	$3.01M	0.0%	+81.4%	0.611%
11/9/2024	Intech Investment Management LLC	15,547	$77K	0.0%	N/A	0.016%
11/4/2024	Los Angeles Capital Management LLC	142,693	$703K	0.0%	-9.2%	0.143%

(Data available from 1/1/2016 forward)

SLRN Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of SLRN shares?: During the previous two years, 132 institutional investors and hedge funds held shares of Acelyrin. The most heavily invested institutionals were AyurMaya Capital Management Company LP ($195.10M), Samsara BioCapital LLC ($47.15M), Vanguard Group Inc. ($42.10M), Driehaus Capital Management LLC ($36.76M), Marshall Wace LLP ($24.28M), CHI Advisors LLC ($23.02M), and Artal Group S.A. ($16.24M).Learn more on SLRN's institutional investors.
What percentage of Acelyrin stock is owned by institutional investors?: 87.31% of Acelyrin stock is owned by institutional investors. Learn more on SLRN's institutional investor holdings.
Which institutional investors have been buying Acelyrin stock?: Of the 113 institutional investors that purchased Acelyrin stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: AyurMaya Capital Management Company LP ($9.33M), JPMorgan Chase & Co. ($3.70M), Velan Capital Investment Management LP ($3.37M), CHI Advisors LLC ($2.66M), T. Rowe Price Investment Management Inc. ($2.44M), Samsara BioCapital LLC ($2.26M), and Artal Group S.A. ($1.82M).

How much institutional buying is happening at Acelyrin?: Institutional investors have bought a total of 51,288,831 shares in the last 24 months. This purchase volume represents approximately $709.65M in transactions.
Which Acelyrin major shareholders have been selling company stock?: Of the 50 institutional investors that sold Acelyrin stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: T. Rowe Price Investment Management Inc. ($8.22M), FMR LLC ($4.60M), Opaleye Management Inc. ($2.57M), JPMorgan Chase & Co. ($1.98M), Ikarian Capital LLC ($1.56M), Fred Alger Management LLC ($956.84K), and Alyeska Investment Group L.P. ($900K).
How much institutional selling is happening at Acelyrin?: Institutional investors have sold a total of 27,008,555 shares in the last 24 months. This volume of shares sold represents approximately $122.47M in transactions.

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This page (NASDAQ:SLRN) was last updated on 6/11/2025 by MarketBeat.com Staff

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Acelyrin (SLRN) Institutional Ownership

SLRN Institutional Buying and Selling by Quarter

Acelyrin Major Shareholders & Ownership History

SLRN Institutional Ownership - Frequently Asked Questions

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Acelyrin (SLRN) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Acelyrin (NASDAQ:SLRN)

SLRN Institutional Buying and Selling by Quarter

Acelyrin Major Shareholders & Ownership History

SLRN Institutional Ownership - Frequently Asked Questions

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