Igm BiosciencesIGMS

13F holders, Q3 2024 (September 30)
72holders −10
8new positions
19sold out
3famous investors
$16.54avg. 13F price*

At the end of Q3 2024, 72 institutions reported holding Igm Biosciences Inc. (IGMS) in their 13F filings, down 10 from Q2 2024. 8 opened new positions and 19 sold out. The largest holders were Baker Bros. Advisors LP ($67.7M), T. Rowe Price Associates Inc. ($66.4M) and Siren, L.L.C. ($55.1M). 3 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Jim Simons / Peter Brown (0.0% of Renaissance Technologies's portfolio).

Company
Igm Biosciences Inc.
CUSIP
449585108
Latest filing quarter
Q3 2025

History

Number of 13F holders

020406080100 Q1 2024: 87Q1 2024Q2 2024: 82Q2 2024Q3 2024: 72Q3 2024Q4 2024: 85Q4 2024Q1 2025: 79Q1 2025Q2 2025: 66Q2 2025Q3 2025: 1Q3 2025

Total Exit/New Position Q2 2024 → Q3 2024

InstitutionsTotal Value
New Positions8$4.3M
Exits19$27.1M

All 13F filers, Q2 2024 → Q3 2024: 480,927 shares bought and 4,522,479 shares sold, net −4,041,552 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 72 holders

Baker Bros. Advisors LP 0.71% Add +0.1% 4,092,310 $67.7M
T. Rowe Price Associates Inc. 0.01% Reduce -1.5% 4,014,259 $66.4M
Siren, L.L.C. 2.76% — 3,330,422 $55.1M
Redmile Group, LLC 2.99% No change 3,072,478 $50.8M
Goldman Sachs Group Inc. 0.00% Reduce -5.6% 1,259,230 $20.8M
BlackRock, Inc. 0.00% — 899,921 $14.9M
Vanguard Group Inc. 0.00% Add +1.3% 890,200 $14.7M
FMR LLC 0.00% Add +0.1% 819,529 $13.6M
State Street Corp. 0.00% Add +2.7% 469,790 $7.8M
Geode Capital Management, LLC 0.00% Add +7.7% 395,799 $6.5M
Invesco Ltd. 0.00% New 222,928 $3.7M
Northern Trust Corp. 0.00% Add +42.3% 191,673 $3.2M
Rhenman & Partners Asset Management AB 0.25% Reduce -4.9% 185,459 $3.1M
TD Asset Management Inc 0.00% No change 164,472 $2.8M
Charles Schwab Investment Management Inc. 0.00% Add +12.2% 148,402 $2.5M
Millennium Management 0.00% Reduce -66.2% 132,342 $2.2M
Bruce & Co., Inc. 0.48% No change 100,000 $1.7M
Wellington Management Group LLP 0.00% Add +42.6% 98,339 $1.6M
D. E. Shaw & Co. 0.00% Reduce -25.4% 97,716 $1.6M
Morgan Stanley 0.00% Reduce -12.4% 97,659 $1.6M
Manufacturers Life Insurance Company, The 0.00% Add +8.2% 74,612 $1.2M
Woodline Partners LP 0.01% Reduce -10.3% 67,259 $1.1M
Corton Capital Inc. 0.54% Add +5.4% 66,768 $1.1M
Renaissance Technologies 0.00% Reduce -38.8% 66,500 $1.1M
Gsa Capital Partners LLP 0.07% Reduce -8.4% 56,754 $939K
Bank of New York Mellon Corp 0.00% Reduce -14.2% 46,343 $767K
Nuveen Asset Management, LLC 0.00% Add +10.5% 45,015 $745K
Eagle Bay Advisors LLC 0.28% No change 44,635 $738K
Royal Bank of Canada 0.00% Add +88.3% 42,078 $696K
Alliancebernstein L.P. 0.00% No change 41,230 $682K
Two Sigma Investments, LP 0.00% Reduce -27.9% 36,277 $600K
Susquehanna Portfolio Strategies, LLC 0.03% No change 30,209 $500K
Jane Street Group, LLC 0.00% Add +75.6% 24,135 $399K
Barclays PLC 0.00% Add +48.4% 21,554 $357K
Rhumbline Advisers 0.00% Reduce -10.7% 20,286 $336K
Susquehanna International Group, LLP 0.00% New 19,467 $322K
Dimensional Fund Advisors LP 0.00% Reduce -49.8% 18,604 $308K
Bank of America Corp. 0.00% Reduce -29.3% 17,187 $284K
Virtus Advisers, LLC 0.09% Add +1.8% 11,606 $192K
Deutsche Bank AG 0.00% Add +3.3% 11,203 $185K
Citigroup Inc. 0.00% Add +230.3% 10,965 $181K
Exchange Traded Concepts, LLC 0.00% Reduce -50.4% 10,572 $175K
Cerity Partners LLC 0.00% New 10,500 $174K
Captrust Financial Advisors 0.00% Add +0.0% 10,201 $169K
MetLife Investment Management, LLC 0.00% New 8,997 $149K
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% Add +27.9% 8,326 $138K
Corebridge Financial, Inc. 0.00% Reduce -0.6% 8,112 $134K
UBS Group AG 0.00% Reduce -14.3% 7,204 $119K
JPMorgan Chase & Co. 0.00% Reduce -4.0% 6,787 $112K
New York State Common Retirement Fund 0.00% No change 6,512 $108K
Wells Fargo & Company 0.00% Reduce -2.8% 4,987 $82K
Nisa Investment Advisors, LLC 0.00% Add +1.4% 3,960 $65K
Legal & General Group Plc 0.00% Add +28.3% 1,746 $29K
AlphaQuest LLC 0.00% Reduce -86.2% 1,645 $27K
Ameritas Investment Partners, Inc. 0.00% No change 1,327 $22K
California State Teachers Retirement System 0.00% No change 1,099 $18K
Tower Research Capital LLC (TRC) 0.00% Reduce -74.4% 929 $15K
Russell Investments Group, Ltd. 0.00% Add +25.0% 921 $15K
Comerica Bank 0.00% No change 617 $10K
Smartleaf Asset Management LLC 0.00% New 434 $7K
Lanark Financial, Inc. 0.00% Reduce -10.0% 450 $7K
Simplex Trading, LLC 0.00% Reduce -46.8% 404 $6K
Amalgamated Bank 0.00% No change 351 $6K
Lindbrook Capital, LLC 0.00% New 185 $3K
Versant Capital Management, Inc 0.00% New 169 $3K
Signaturefd, LLC 0.00% Reduce -15.7% 161 $3K
US Bancorp \de 0.00% Add +429.4% 90 $1K
GAMMA Investing LLC 0.00% New 69 $1K
PNC Financial Services Group, Inc. 0.00% No change 23 $380
Sterling Capital Management LLC 0.00% — 18 $298
Farther Finance Advisors, LLC 0.00% No change 9 $149
Cwm, LLC 0.00% Add +88.9% 17 $0

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