Annexon (ANNX) Institutional Ownership

$5.39 +0.13 (+2.47%)

Closing price 04:00 PM Eastern

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$5.33 -0.06 (-1.11%)

As of 07:44 PM Eastern

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Number of Institutional Buyers (last 12 months): 101
Total Institutional Inflows (last 12 months): $205.33M

Number of Institutional Sellers (last 12 months): 34
Total Institutional Outflows (last 12 months): $26.85M

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ANNX Institutional Buying and Selling by Quarter

Annexon 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
5/19/2026	Bank of America Corp DE	4,259,995	$23.60M	0.0%	+165.3%	2.600%
5/19/2026	Janus Henderson Group PLC	59,100	$328K	0.0%	N/A	0.036%
5/18/2026	ADAR1 Capital Management LLC	55,000	$305K	0.0%	+14.6%	0.034%
5/18/2026	Redmile Group LLC	14,549,768	$80.61M	5.3%	+44.8%	8.880%
5/16/2026	The Manufacturers Life Insurance Company	134,786	$747K	0.0%	+3.6%	0.082%
5/14/2026	Renaissance Technologies LLC	544,300	$3.02M	0.0%	-32.2%	0.332%
5/14/2026	Siren L.L.C.	3,958,646	$21.93M	0.6%	N/A	2.416%
5/14/2026	Sei Investments Co.	203,236	$1.13M	0.0%	+248.8%	0.124%
5/14/2026	Lido Advisors LLC	31,000	$172K	0.0%	-11.3%	0.019%
5/7/2026	Dimensional Fund Advisors LP	924,078	$5.12M	0.0%	+28.6%	0.569%
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5/7/2026	AlphaCentric Advisors LLC	24,518	$136K	0.1%	N/A	0.015%
5/7/2026	Swiss National Bank	236,000	$1.31M	0.0%	N/A	0.145%
5/5/2026	Bank of New York Mellon Corp	395,019	$2.19M	0.0%	+9.2%	0.243%
5/4/2026	J. Safra Sarasin Holding AG	90,487	$501K	0.0%	-23.2%	0.056%
5/1/2026	Fifth Third Bancorp	35,398	$196K	0.0%	N/A	0.022%
4/28/2026	Abel Hall LLC	10,921	$61K	0.0%	N/A	0.007%
4/27/2026	Y Intercept Hong Kong Ltd	1,319,913	$7.31M	0.1%	N/A	0.812%
4/25/2026	Strs Ohio	55,500	$307K	0.0%	N/A	0.034%
4/22/2026	Pictet Asset Management Holding SA	16,701	$93K	0.0%	N/A	0.010%
3/3/2026	Caitong International Asset Management Co. Ltd	19,197	$96K	0.0%	N/A	0.016%
2/19/2026	Invesco Ltd.	972,449	$4.88M	0.0%	+381.5%	0.813%
2/18/2026	Mercer Global Advisors Inc. ADV	10,386	$52K	0.0%	N/A	0.009%
2/18/2026	XTX Topco Ltd	243,313	$1.22M	0.0%	+64.6%	0.203%
2/18/2026	Ikarian Capital LLC	230,244	$1.16M	0.1%	N/A	0.192%
2/18/2026	Virtus Investment Advisers LLC	53,527	$269K	0.1%	+27.5%	0.045%
2/18/2026	Wellington Management Group LLP	398,077	$2.00M	0.0%	N/A	0.333%
2/18/2026	SummitTX Capital L.P.	438,497	$2.20M	0.1%	+81.2%	0.367%
2/18/2026	Susquehanna Portfolio Strategies LLC	356,619	$1.79M	0.0%	+0.8%	0.298%
2/18/2026	Sphera Funds Management LTD.	1,316,212	$6.61M	1.2%	-26.6%	1.100%
2/18/2026	Quadrature Capital Ltd	48,573	$244K	0.0%	N/A	0.041%
2/18/2026	Millennium Management LLC	2,836,857	$14.24M	0.0%	+0.5%	2.371%
2/18/2026	Ishara Investments LP	750,000	$3.77M	4.4%	N/A	0.627%
2/18/2026	Cinctive Capital Management LP	358,986	$1.80M	0.1%	+448.4%	0.300%
2/18/2026	Balyasny Asset Management L.P.	3,299,256	$16.56M	0.0%	+154.3%	2.758%
2/18/2026	Boothbay Fund Management LLC	64,069	$322K	0.0%	N/A	0.054%
2/18/2026	BVF Inc. IL	9,128,080	$45.82M	1.5%	+30.4%	7.630%
2/17/2026	ADAR1 Capital Management LLC	48,000	$241K	0.0%	N/A	0.040%
2/17/2026	Schonfeld Strategic Advisors LLC	522,846	$2.63M	0.0%	+146.4%	0.437%
2/17/2026	J. Goldman & Co LP	993,795	$4.99M	0.1%	-10.2%	0.831%
2/17/2026	AQR Capital Management LLC	776,307	$3.90M	0.0%	+35.2%	0.649%
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2/17/2026	Mak Capital One LLC	2,958,527	$14.85M	1.6%	N/A	2.473%
2/17/2026	Jump Financial LLC	122,858	$617K	0.0%	N/A	0.103%
2/17/2026	Price T Rowe Associates Inc. MD	445,074	$2.24M	0.0%	-8.2%	0.372%
2/17/2026	Adage Capital Partners GP L.L.C.	5,500,000	$27.61M	0.0%	+266.7%	4.598%
2/17/2026	Russell Investments Group Ltd.	683,016	$3.43M	0.0%	+3,648.7%	0.571%
2/17/2026	Captrust Financial Advisors	31,585	$159K	0.0%	N/A	0.026%
2/16/2026	Mariner LLC	31,335	$157K	0.0%	N/A	0.026%
2/16/2026	Landscape Capital Management L.L.C.	10,016	$50K	0.0%	N/A	0.008%
2/16/2026	Barclays PLC	289,963	$1.46M	0.0%	+96.0%	0.242%
2/13/2026	Marshall Wace LLP	520,998	$2.62M	0.0%	N/A	0.436%
2/13/2026	The Manufacturers Life Insurance Company	130,102	$655K	0.0%	-1.9%	0.109%
2/13/2026	Quarry LP	75,000	$376K	0.1%	-31.8%	0.063%
2/13/2026	Jacobs Levy Equity Management Inc.	683,879	$3.43M	0.0%	+2,927.5%	0.572%
2/13/2026	Sirios Capital Management L P	710,256	$3.57M	0.4%	-26.8%	0.594%
2/13/2026	Rafferty Asset Management LLC	141,644	$711K	0.0%	N/A	0.118%
2/13/2026	Charles Schwab Investment Management Inc.	1,057,060	$5.31M	0.0%	+33.8%	0.884%
2/13/2026	State Street Corp	4,652,185	$23.35M	0.0%	+126.9%	3.889%
2/13/2026	Ieq Capital LLC	182,982	$919K	0.0%	+21.7%	0.153%
2/13/2026	Caitong International Asset Management Co. Ltd	16,415	$82K	0.2%	N/A	0.014%
2/13/2026	Wells Fargo & Company MN	573,748	$2.88M	0.0%	+40.1%	0.480%
2/12/2026	MetLife Investment Management LLC	39,059	$196K	0.0%	-12.5%	0.033%
2/12/2026	Renaissance Technologies LLC	802,600	$4.03M	0.0%	+6.5%	0.671%
2/12/2026	Dimensional Fund Advisors LP	718,680	$3.61M	0.0%	-6.3%	0.601%
2/12/2026	EntryPoint Capital LLC	42,774	$215K	0.1%	+114.2%	0.036%
2/12/2026	New York State Common Retirement Fund	29,568	$148K	0.0%	-14.2%	0.025%
2/12/2026	Nuveen LLC	2,915,324	$14.64M	0.0%	+327.1%	2.437%
2/11/2026	Deutsche Bank AG	560,744	$2.82M	0.0%	-62.7%	0.469%
2/11/2026	Cerity Partners LLC	14,801	$74K	0.0%	N/A	0.012%
2/11/2026	Landing Point Financial Group LLC	34,900	$175K	0.1%	N/A	0.029%
2/11/2026	WINTON GROUP Ltd	53,400	$268K	0.0%	N/A	0.045%
2/10/2026	Goldman Sachs Group Inc.	1,768,745	$8.88M	0.0%	-26.5%	1.479%
2/10/2026	Intech Investment Management LLC	42,524	$213K	0.0%	+59.4%	0.036%
2/9/2026	Geode Capital Management LLC	2,902,896	$14.58M	0.0%	+19.1%	2.427%
2/6/2026	ProShare Advisors LLC	24,698	$124K	0.0%	+21.7%	0.021%
2/5/2026	DNB Asset Management AS	118,324	$594K	0.0%	+40.0%	0.099%
1/26/2026	Mirae Asset Global Investments Co. Ltd.	7,033	$35K	0.0%	+65.6%	0.006%
1/26/2026	CWM LLC	30,297	$152K	0.0%	+29.0%	0.025%
1/22/2026	Massachusetts Financial Services Co. MA	903,439	$4.54M	0.0%	-7.8%	0.755%
1/22/2026	Mount Vernon Associates Inc. MD	10,500	$53K	0.0%	N/A	0.009%
1/15/2026	J. Safra Sarasin Holding AG	117,768	$591K	0.0%	-47.2%	0.098%
1/14/2026	Hennion & Walsh Asset Management Inc.	534,986	$2.69M	0.1%	+12.4%	0.447%
1/9/2026	SG Americas Securities LLC	28,071	$141K	0.0%	+155.3%	0.023%
1/8/2026	Wealth Enhancement Advisory Services LLC	19,553	$100K	0.0%	+13.6%	0.016%
1/1/2026	JPMorgan Chase & Co.	46,886	$143K	0.0%	-11.2%	0.039%
11/21/2025	CIBC Bancorp USA Inc.	10,208	$31K	0.0%	N/A	0.009%
11/17/2025	Jacobs Levy Equity Management Inc.	22,589	$69K	0.0%	N/A	0.019%
11/17/2025	Woodline Partners LP	2,638,275	$8.05M	0.0%	+150.4%	2.205%
11/17/2025	Quarry LP	110,000	$336K	0.1%	+155.0%	0.092%
11/17/2025	Qube Research & Technologies Ltd	572,644	$1.75M	0.0%	+34.8%	0.479%
11/17/2025	Millennium Management LLC	2,822,823	$8.61M	0.0%	+12.3%	2.360%
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11/17/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	44,979	$137K	0.0%	-14.2%	0.038%
11/17/2025	Brevan Howard Capital Management LP	94,554	$288K	0.0%	+77.5%	0.079%
11/17/2025	Cinctive Capital Management LP	65,466	$200K	0.0%	-51.7%	0.055%
11/17/2025	Bank of America Corp DE	1,294,302	$3.95M	0.0%	-10.9%	1.082%
11/17/2025	Ameriprise Financial Inc.	2,192,354	$6.69M	0.0%	+1.2%	1.833%
11/14/2025	Schonfeld Strategic Advisors LLC	212,219	$647K	0.0%	-20.2%	0.193%
11/14/2025	SummitTX Capital L.P.	241,991	$738K	0.0%	N/A	0.220%
11/14/2025	Raymond James Financial Inc.	20,000	$61K	0.0%	N/A	0.018%
11/14/2025	Two Sigma Investments LP	279,134	$851K	0.0%	+38.8%	0.254%
11/14/2025	Bridgeway Capital Management LLC	137,800	$420K	0.0%	+40.9%	0.125%

ANNX Institutional Ownership - Frequently Asked Questions

During the previous two years, 161 institutional investors and hedge funds held shares of Annexon. The most heavily invested institutionals were Redmile Group LLC ($80.61M), FMR LLC ($50.69M), BVF Inc. IL ($45.82M), Point72 Asset Management L.P. ($28.87M), Adage Capital Partners GP L.L.C. ($27.61M), Bain Capital Life Sciences Investors LLC ($26.93M), and Bank of America Corp DE ($23.60M).Learn more on Annexon's institutional investors.

Of the 145 institutional investors that purchased Annexon's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: State Street Corp ($4.67M), Redmile Group LLC ($4.50M), Adage Capital Partners GP L.L.C. ($4M), Siren L.L.C. ($3.96M), Bank of America Corp DE ($3.07M), Mak Capital One LLC ($2.96M), and Nuveen LLC ($2.58M).

Institutional investors have bought a total of 42,121,831 shares in the last 24 months. This purchase volume represents approximately $205.33M in transactions.

Of the 34 institutional investors that sold Annexon's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Ameriprise Financial Inc. ($1.82M), JPMorgan Chase & Co. ($1.39M), Deutsche Bank AG ($943.61K), Goldman Sachs Group Inc. ($637.69K), Sphera Funds Management LTD. ($478.18K), Qube Research & Technologies Ltd ($312.55K), and J. Safra Sarasin Holding AG ($290.95K).

Institutional investors have sold a total of 7,559,260 shares in the last 24 months. This volume of shares sold represents approximately $26.85M in transactions.

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This page (NASDAQ:ANNX) was last updated on 6/3/2026 by MarketBeat.com Staff.

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Annexon (ANNX) Institutional Ownership

ANNX Institutional Buying and Selling by Quarter

Annexon Major Shareholders & Ownership History

ANNX Institutional Ownership - Frequently Asked Questions

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Annexon (ANNX) Institutional Ownership

Institutional Ownership Changes (13F Filings) for Annexon (NASDAQ:ANNX)

ANNX Institutional Buying and Selling by Quarter

Annexon Major Shareholders & Ownership History

ANNX Institutional Ownership - Frequently Asked Questions

Who are the largest shareholders of ANNX shares?

Which institutional investors have been buying Annexon's stock?

How much institutional buying is happening at Annexon?

Which of Annexon's major shareholders have been selling company stock?

How much institutional selling is happening at Annexon?

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