AnnexonANNX

13F holders, Q2 2024 (June 30)
140holders +13
37new positions
27sold out
5famous investors
$4.90avg. 13F price*

At the end of Q2 2024, 140 institutions reported holding Annexon Inc. (ANNX) in their 13F filings, up 13 from Q1 2024. 37 opened new positions and 27 sold out. The largest holders were Bain Capital Life Sciences Investors, LLC ($41.4M), FMR LLC ($40.7M) and Alerce Investment Management, L.P. ($36.3M). 5 famous investors held it, including Steve Cohen (0.1% of Point72 Asset Management's portfolio), Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio) and Cliff Asness (0.0% of AQR Capital Management's portfolio).

Company
Annexon Inc.
CUSIP
03589W102
Latest filing quarter
Q2 2026

History

Number of 13F holders

050100150200250 Q1 2024: 127Q1 2024Q2 2024: 140Q2 2024Q3 2024: 142Q3 2024Q4 2024: 152Q4 2024Q1 2025: 147Q1 2025Q2 2025: 129Q2 2025Q3 2025: 144Q3 2025Q4 2025: 168Q4 2025Q1 2026: 217Q1 2026Q2 2026: 216Q2 2026

Total Exit/New Position Q1 2024 → Q2 2024

InstitutionsTotal Value
New Positions37$39.9M
Exits27$34.4M

All 13F filers, Q1 2024 → Q2 2024: 26,256,591 shares bought and 13,716,677 shares sold, net +12,539,914 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 140 holders

Bain Capital Life Sciences Investors, LLC 4.55% Reduce -2.9% 8,449,208 $41.4M
FMR LLC 0.00% Reduce -11.4% 8,299,720 $40.7M
Alerce Investment Management, L.P. 71.13% No change 7,406,024 $36.3M
BVF Inc. 0.96% No change 7,000,000 $34.3M
BlackRock Inc. 0.00% Add +30.6% 6,587,287 $32.3M
Redmile Group, LLC 1.90% Add +16.8% 6,427,462 $31.5M
Point72 Asset Management 0.10% Add +16.1% 5,989,017 $29.3M
Bellevue Group AG 0.41% Add +136.3% 5,157,290 $25.3M
Vanguard Group Inc. 0.00% Add +21.6% 4,556,640 $22.3M
Woodline Partners LP 0.19% Add +103.5% 4,071,677 $20.0M
Logos Global Management LP 1.86% Add +8.2% 3,300,000 $16.2M
GMT Capital Corp 0.53% Add +11.1% 2,939,945 $14.4M
Adage Capital Partners Gp, L.L.C. 0.03% Reduce -34.3% 2,840,145 $13.9M
Candriam S.C.A. 0.06% New 2,053,459 $10.1M
Geode Capital Management, LLC 0.00% Add +26.8% 1,812,366 $8.9M
State Street Corp. 0.00% Add +48.0% 1,773,585 $8.7M
Marshall Wace, LLP 0.01% Add +436.6% 1,693,665 $8.3M
JPMorgan Chase & Co. 0.00% Add +75.7% 1,686,372 $8.3M
Nuveen Asset Management, LLC 0.00% Add +428.3% 1,627,402 $8.0M
Tetragon Partners GP Ltd 2.88% New 1,257,985 $6.2M
T. Rowe Price Associates Inc. 0.00% Reduce -17.3% 1,094,472 $5.4M
Massachusetts Financial Services Co. 0.00% Add +37.6% 1,064,801 $5.2M
Morgan Stanley 0.00% Add +12.1% 1,008,414 $4.9M
Kennedy Capital Management LLC 0.10% Add +18.1% 914,648 $4.5M
Acadian Asset Management LLC 0.01% Reduce -4.8% 912,151 $4.5M
Rhenman & Partners Asset Management AB 0.42% New 900,000 $4.4M
Readystate Asset Management LP 0.37% New 883,448 $4.3M
Dimensional Fund Advisors LP 0.00% Add +146.3% 822,605 $4.0M
Schonfeld Strategic Advisors LLC 0.03% Add +6.9% 814,221 $4.0M
Citigroup Inc. 0.00% Add +5095.7% 669,158 $3.3M
Mutual of America Capital Management LLC 0.03% New 639,573 $3.1M
Goldman Sachs Group Inc. 0.00% Add +5.9% 596,191 $2.9M
Renaissance Technologies 0.00% Reduce -13.0% 584,200 $2.9M
Deerfield Management Company, L.P. 0.06% No change 583,913 $2.9M
Northern Trust Corp. 0.00% Reduce -0.1% 555,295 $2.7M
Deutsche Bank AG 0.00% Add +218.0% 495,690 $2.4M
Board of Trustees of The Leland Stanford Junior University 0.16% No change 482,550 $2.4M
Alyeska Investment Group, L.P. 0.01% New 450,000 $2.2M
Qube Research & Technologies Ltd 0.00% Add +2923.8% 447,700 $2.2M
Caption Management, LLC 0.21% Reduce -19.9% 400,600 $2.0M
Octagon Capital Advisors LP 0.32% Reduce -80.5% 400,000 $2.0M
Ikarian Capital, LLC 0.58% Reduce -73.0% 380,000 $1.9M
Millennium Management 0.00% Reduce -72.8% 347,212 $1.7M
Susquehanna International Group, LLP 0.00% Add +123.9% 339,278 $1.7M
Parkman Healthcare Partners LLC 0.22% Reduce -5.7% 326,845 $1.6M
Two Sigma Investments, LP 0.00% Reduce -12.6% 326,404 $1.6M
Trexquant Investment LP 0.02% New 313,093 $1.5M
Ghost Tree Capital, LLC 0.53% New 310,000 $1.5M
AQR Capital Management 0.00% Add +2356.2% 279,463 $1.4M
Bank of New York Mellon Corp 0.00% Add +42.9% 258,033 $1.3M
Point72 Europe (London) LLP 0.10% New 234,592 $1.1M
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.03% Reduce -8.1% 228,277 $1.1M
Charles Schwab Investment Management Inc. 0.00% Add +25.7% 227,560 $1.1M
Cinctive Capital Management LP 0.06% Add +392.3% 218,090 $1.1M
Ovata Capital Management Ltd 0.53% New 200,000 $980K
Wellington Management Group LLP 0.00% Add +14.1% 193,419 $948K
Hennion & Walsh Asset Management, Inc. 0.05% New 192,612 $944K
Susquehanna Fundamental Investments, LLC 0.02% Add +385.6% 163,025 $799K
Manufacturers Life Insurance Company, The 0.00% Add +67.5% 157,136 $770K
Driehaus Capital Management LLC 0.01% No change 258,314 $738K
Wells Fargo & Company 0.00% Add +421.1% 150,616 $738K
Monashee Investment Management LLC 0.10% New 150,000 $735K
Artia Global Partners LP 0.19% No change 147,485 $723K
Alliancebernstein L.P. 0.00% Add +260.5% 146,450 $718K
TD Asset Management Inc 0.00% Reduce -24.1% 133,648 $655K
Rhumbline Advisers 0.00% Add +54.5% 126,659 $621K
Two Sigma Advisers, LP 0.00% Reduce -38.6% 119,400 $585K
American Century Companies Inc. 0.00% Add +47.5% 115,662 $567K
Boothbay Fund Management, LLC 0.02% Reduce -72.4% 103,493 $507K
D. E. Shaw & Co. 0.00% Reduce -75.7% 92,085 $451K
Bridgeway Capital Management, LLC 0.01% Reduce -52.1% 85,000 $417K
UBS Group AG 0.00% Reduce -17.0% 75,573 $370K
Alps Advisors Inc. 0.00% New 71,077 $348K
Jane Street Group, LLC 0.00% Reduce -47.2% 69,965 $343K
Bank of America Corp. 0.00% Reduce -13.6% 65,560 $321K
State of Wisconsin Investment Board 0.00% New 64,309 $315K
Osaic Holdings, Inc. 0.00% Add +7817.2% 62,625 $307K
Sherbrooke Park Advisers LLC 0.05% New 61,109 $299K
Barclays PLC 0.00% Reduce -23.9% 56,976 $279K
Park Avenue Securities LLC 0.00% New 49,986 $245K
MetLife Investment Management, LLC 0.00% Add +41.1% 49,398 $242K
DNB Asset Management AS 0.00% Add +29.4% 46,485 $228K
Cornercap Investment Counsel Inc. 0.04% Reduce -1.4% 46,057 $226K
Corebridge Financial, Inc. 0.00% — 45,318 $222K
Jump Financial, LLC 0.00% Reduce -79.6% 42,953 $210K
Prudential Financial Inc. 0.00% Add +6.0% 39,340 $193K
Bayesian Capital Management, LP 0.02% Add +132.5% 38,599 $189K
Susquehanna Portfolio Strategies, LLC 0.01% Reduce -73.4% 37,660 $185K
HSBC Holdings PLC 0.00% Reduce -17.4% 36,369 $175K
Aquatic Capital Management LLC 0.01% New 35,300 $173K
Maven Securities LTD 0.03% New 34,707 $170K
New York State Common Retirement Fund 0.00% Add +190.2% 34,668 $170K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% — 34,167 $167K
Gsa Capital Partners LLP 0.01% Add +21.4% 31,226 $153K
Virtu Financial LLC 0.01% Reduce -35.1% 29,664 $145K
Squarepoint Ops LLC 0.00% New 28,337 $139K
Voya Investment Management LLC 0.00% Add +31.5% 28,282 $139K
Creative Planning 0.00% New 26,865 $132K
Allegheny Financial Group 0.04% Add +16.1% 25,200 $123K
OMERS ADMINISTRATION Corp 0.00% New 24,400 $120K
LPL Financial LLC 0.00% New 22,997 $113K
Invesco Ltd. 0.00% Reduce -97.1% 22,838 $112K
Graham Capital Management, L.P. 0.01% New 21,996 $108K
Jefferies Financial Group Inc. 0.00% New 18,000 $88K
Aigen Investment Management, LP 0.02% New 17,782 $87K
Coastal Bridge Advisors, LLC 0.02% No change 17,000 $83K
Forefront Analytics, LLC 0.04% Add +8.7% 16,103 $79K
Tower Research Capital LLC (TRC) 0.00% Add +126.4% 15,881 $78K
SG Americas Securities, LLC 0.00% Reduce -30.7% 15,040 $74K
Virtus Advisers, LLC 0.04% New 15,063 $74K
Group One Trading LLC 0.00% Add +159.7% 14,333 $70K
Royal Bank of Canada 0.00% Add +650.1% 14,125 $69K
Legal & General Group Plc 0.00% Add +130.0% 12,663 $62K
State Board of Administration of Florida Retirement System 0.00% New 11,857 $58K
Corton Capital Inc. 0.03% New 11,478 $56K
Principal Financial Group Inc. 0.00% New 11,440 $56K
Cambridge Investment Research Advisors, Inc. 0.00% Add +5.8% 11,317 $55K
49 Wealth Management, LLC 0.01% Reduce -23.9% 10,111 $51K
Victory Capital Management Inc. 0.00% New 10,345 $51K
Verition Fund Management LLC 0.00% New 10,038 $49K
Sandia Investment Management LP 0.06% New 10,000 $49K
Harbor Advisors LLC 0.01% New 10,000 $49K
Kestra Advisory Services, LLC 0.00% No change 10,000 $49K
Comerica Bank 0.00% No change 10,000 $49K
Ameritas Investment Partners, Inc. 0.00% No change 6,718 $33K
California State Teachers Retirement System 0.00% Reduce -9.9% 6,104 $30K
Russell Investments Group, Ltd. 0.00% Add +517.2% 6,098 $30K
EntryPoint Capital, LLC 0.01% Reduce -59.5% 5,518 $27K
Federated Hermes, Inc. 0.00% Add +124.6% 2,882 $14K
Cwm, LLC 0.00% Add +14652.9% 2,508 $12K
Amalgamated Bank 0.00% No change 2,290 $11K
Private Wealth Management Group, LLC 0.00% No change 654 $3K
CIBC Private Wealth Group LLC 0.00% New 670 $3K
Arax Advisory Partners 0.00% New 457 $2K
HighMark Wealth Management LLC 0.00% No change 300 $1K
PNC Financial Services Group, Inc. 0.00% Add +34.2% 216 $1K
Nisa Investment Advisors, LLC 0.00% Add +750.0% 187 $916
Signaturefd, LLC 0.00% New 151 $740
Rothschild Investment LLC 0.00% New 25 $123
Farther Finance Advisors, LLC 0.00% No change 1 $5

"% of holder's portfolio" is ANNX's weight in each manager's 13F, not the share of Annexon Inc. the manager owns.