IGM Biosciences Inc (IGMS) Ownership

1.27 ↑0.00 (0.00%)
As of December 31, 1969, 7:00pm EST.

Institutional Ownership

Baker Bros Advisors LP is the biggest individual institutional holder of IGM Biosciences Inc (IGMS), owning a total of 4.1 million shares. Combined, the top 57 institutional holders of IGMS own 51.76% of the company with a total of 30.6 million shares.

In the latest ownership report on June 30th 2025, the top 57 institutional holders decreased their combined ownership of IGMS by 1 million shares. 6 institutions bought 656,515 total additional shares and increased their ownership by an average of 76.72%. However 10 institutions sold 1,686,992 total shares and decreased their ownership by an average of 40.47%.

Overall this is a negative sign as the number of shares owned by the top 20 institutional holders of IGM Biosciences decreased by a net total of -1,030,477 in the latest quarter.

Institution Ownership Chart

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Latest Institutional Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Baker Bros Advisors LP6.794%0.023%4,096,2109532025-06-30
Siren, L.L.C.5.400%0.000%3,255,82602025-06-30
Redmile Group, LLC4.896%0.000%2,952,13102025-06-30
Sanofi2.387%0.000%1,438,97502025-06-30
Goldman Sachs Group Inc1.419%7.802%855,28661,9002025-06-30
Vanguard Group Inc1.272%-12.382%767,154-108,4152025-06-30
BlackRock Inc0.639%-62.594%385,474-645,0502025-06-30
Millennium Management LLC0.456%0.000%275,112275,1122025-06-30
Geode Capital Management, LLC0.354%-49.896%213,273-212,3872025-06-30
Jane Street Group LLC0.300%0.000%180,985180,9852025-06-30
AQR Capital Management LLC0.272%-31.256%164,209-74,6622025-06-30
Renaissance Technologies Corp0.195%233.524%117,73482,4342025-06-30
Northern Trust Corp0.178%-42.467%107,568-79,3982025-06-30
Two Sigma Investments LLC0.173%-25.385%104,290-35,4802025-06-30
Eagle Bay Advisors LLC0.165%0.000%99,63502025-06-30
Charles Schwab Investment Management Inc0.149%-28.587%89,705-35,9092025-06-30
Two Sigma Advisers, LLC0.137%-8.619%82,700-7,8002025-06-30
Susquehanna International Group, LLP0.133%218.948%80,31155,1312025-06-30
State Street Corp0.126%-84.624%75,913-417,7852025-06-30
Woodline Partners LP0.115%0.000%69,57602025-06-30
Verition Fund Managegment, LLC0.081%-58.879%48,962-70,1062025-06-30

Top Institutions

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Baker Bros Advisors LP6.794%0.023%4,096,2109532025-06-30
T. Rowe Price Associates, Inc.5.943%-11.092%3,568,999-445,2602024-12-31
Artal Group S A5.602%8.116%3,330,422250,0002024-06-30
Siren, L.L.C.5.400%0.000%3,255,82602025-06-30
Redmile Group, LLC4.896%0.000%2,952,13102025-06-30
Sanofi2.387%0.000%1,438,97502025-06-30
RA Capital Management, LLC1.588%0.000%937,50002024-03-31
Goldman Sachs Group Inc1.419%7.802%855,28661,9002025-06-30
Vanguard Group Inc1.272%-12.382%767,154-108,4152025-06-30
Alkeon Capital Management, LLC1.220%-14.577%711,777-121,4642023-03-31
Great Point Partners LLC1.054%23.063%615,317115,3172023-09-30
T. Rowe Price Investment Management,Inc.1.370%0.000%586,663586,6632022-09-30
UBS Asset Mgmt Americas Inc0.831%0.000%485,02702023-06-30
FMR Inc0.788%-42.232%473,426-346,1032024-12-31
ExodusPoint Capital Management, LP0.777%0.000%453,898453,8982023-09-30
GSA Capital Partners LLP0.705%354.957%425,303331,8212025-03-31
Adage Capital Partners Gp LLC0.680%0.000%400,000400,0002023-12-31
BlackRock Inc0.639%-62.594%385,474-645,0502025-06-30
State Street Corporation0.538%3.838%319,26911,8012024-03-31
Millennium Management LLC0.456%0.000%275,112275,1122025-06-30
Opaleye Management Inc0.447%311.024%261,000197,5002023-09-30
Amvescap Plc.0.375%0.000%222,928222,9282024-09-30
Geode Capital Management, LLC0.354%-49.896%213,273-212,3872025-06-30
Jane Street Group LLC0.300%0.000%180,985180,9852025-06-30
Candriam Luxembourg S.C.A.0.300%0.000%175,00802023-09-30
First Manhattan Co. LLC0.295%0.000%172,200172,2002023-09-30
TD Asset Management Inc0.275%0.000%164,47202024-12-31
AQR Capital Management LLC0.272%-31.256%164,209-74,6622025-06-30
Samsara BioCapital, LLC0.261%0.000%154,66402024-06-30
Exome Asset Management LLC0.231%0.000%135,596135,5962023-12-31
Point72 Asset Management, L.P.0.222%0.000%129,740129,7402023-03-31
Rhenman Partners Asset Management AB0.210%-32.026%126,064-59,3952024-12-31
Hudson Bay Capital Management LP0.211%-50.000%124,260-124,2602023-12-31
Renaissance Technologies Corp0.195%233.524%117,73482,4342025-06-30
Northern Trust Corp0.178%-42.467%107,568-79,3982025-06-30
Marshall Wace Asset Management Ltd0.180%51.558%107,26736,4912024-06-30
Two Sigma Investments LLC0.173%-25.385%104,290-35,4802025-06-30
Wellington Management Company LLP0.168%2.762%101,0552,7162024-12-31
Bruce & Co Inc0.166%0.000%100,00002025-03-31
Eagle Bay Advisors LLC0.165%0.000%99,63502025-06-30
D. E. Shaw & Co LP0.164%-25.445%97,716-33,3492024-09-30
Morgan Stanley - Brokerage Accounts0.161%-0.760%96,917-7422024-12-31
Dimensional Fund Advisors, Inc.0.220%107.965%94,99249,3152023-03-31
Victory Capital Management Inc.0.211%12.119%90,2009,7502022-12-31
Charles Schwab Investment Management Inc0.149%-28.587%89,705-35,9092025-06-30
Nuveen Asset Management, LLC0.205%232.004%87,68961,2772022-06-30
Acadian Asset Management LLC0.142%65,401.500%85,80785,6762025-03-31
Two Sigma Advisers, LLC0.137%-8.619%82,700-7,8002025-06-30
Susquehanna International Group, LLP0.133%218.948%80,31155,1312025-06-30
Jacobs Levy Equity Management, Inc.0.133%39.730%78,58022,3432024-03-31
State Street Corp0.126%-84.624%75,913-417,7852025-06-30
Manufacturers Life Insurance Co0.126%8.245%74,6125,6832024-09-30
HRT FINANCIAL LLC0.165%22.705%70,66113,0752022-06-30
Woodline Partners LP0.115%0.000%69,57602025-06-30
Verition Fund Managegment, LLC0.081%-58.879%48,962-70,1062025-06-30
Deutsche Bank AG0.078%316.612%46,77335,5462025-03-31
Nuveen, LLC0.075%0.000%45,01545,0152025-03-31

Mutual Fund Ownership

T. Rowe Price New Horizons is the biggest individual fund holder of IGM Biosciences Inc (IGMS), owning a total of 1.8 million shares. Combined, the top 68 mutual fund holders of IGMS own 24.45% of the company with a total of 14.1 million shares.

In the latest ownership report on July 31st 2025, the top 68 fund holders increased their combined ownership of IGMS by 95 thousand shares. 3 funds bought 1,778 total additional shares and increased their ownership by an average of 1.95%. However 6 funds sold 97,202 total shares and decreased their ownership by an average of 5.91%.

Overall this is a negative sign as the number of shares owned by the top 20 mutual funds holding IGM Biosciences decreased by a net total of -95,424 in the latest report.

Mutual Funds Chart

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Latest Mutual Fund Ownership Changes

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
Vanguard Total Stock Mkt Idx Inv0.728%-2.139%439,014-9,5952025-07-31
Vanguard Institutional Extnd Mkt Idx Tr0.314%-31.303%189,292-86,2542025-07-31
Fidelity Extended Market Index0.178%-0.817%107,359-8842025-07-31
iShares Biotechnology ETF0.159%0.865%95,5458192025-07-31
Schwab US Small-Cap ETF™0.148%-0.047%89,441-422025-07-31
iShares Micro-Cap ETF0.079%0.000%47,75202025-07-31
Vanguard Health Care ETF0.060%-0.958%36,382-3522025-07-31
Fidelity Total Market Index0.058%-0.213%35,190-752025-07-31
Fidelity Series Total Market Index0.046%0.000%27,68802025-07-31
Spartan Extended Market Index Pool F0.035%4.353%21,1948842025-07-31
T. Rowe Price Extended Equity Market Idx0.020%0.000%12,08502025-07-31
Spartan Total Market Index Pool G0.020%0.632%11,939752025-07-31
Fidelity Nasdaq Composite Index0.016%0.000%9,61402025-07-31

Top Mutual Funds

OwnerPercent OwnedPercent ChangeShares OwnedShare ChangeDate Reported
T. Rowe Price New Horizons2.988%0.000%1,776,57202024-12-31
US Small-Cap Growth II Equity Comp2.972%-9.656%1,776,572-189,8742024-12-31
Fidelity® Select Biotechnology2.892%-8.034%1,688,482-147,5002023-11-30
T. Rowe Price Health Sciences1.395%-3.236%829,518-27,7392024-12-31
Vanguard US Total Market Shares ETF0.771%0.000%461,04902024-09-30
Fidelity Select Biotechnology0.767%-24.759%455,823-149,9912024-12-31
Vanguard Total Stock Mkt Idx Inv0.728%-2.139%439,014-9,5952025-07-31
T. Rowe Price New Horizons Tr-A0.714%7.772%426,93530,7872024-12-31
T. Rowe Price New Horizons Tr-Z0.714%7.772%426,93530,7872024-12-31
T. Rowe Price Small-Cap Value0.916%-0.432%392,244-1,7002022-09-30
UBS (Lux) EF Biotech (USD) P-acc0.601%0.000%350,94002023-05-31
Vanguard Instl Ttl Stck Mkt Idx Tr0.568%0.000%331,53302023-03-31
UBS: US Equity Small Cap Growth0.500%0.000%291,92602023-06-30
USAA Science & Technology0.567%35.528%244,84664,1852022-12-31
Invesco Dorsey Wright SmallCap Momt ETF0.377%0.181%224,3054062024-12-31
State St Russell Sm/Mid Cp® Indx NL Cl C0.324%0.000%194,38902025-04-30
State St Russell Sm/Mid Cp® Indx SL Cl I0.323%0.000%194,38902025-05-31
Vanguard Institutional Extnd Mkt Idx Tr0.314%-31.303%189,292-86,2542025-07-31
T. Rowe Price U.S. SC Value Eq Tr-Z0.428%0.937%183,0891,7002022-09-30
Belfius Equities Cure C Cap0.300%0.000%175,00002023-09-30
Candriam Global Equities Oncology0.300%0.000%175,00002023-09-30
Fidelity Small Cap Index0.268%0.000%161,74502025-05-31
T. Rowe Price QM US Small-Cap Gr Eq0.332%0.000%143,15202023-03-31
TRP Integrated US Small-Cap Gr Eq0.245%0.000%143,15202023-09-30
T. Rowe Price Integrated US Sm Gr Eq0.235%0.000%139,57202024-10-31
T. Rowe Price Integrated US SmCapGrEq0.235%-2.501%139,572-3,5802024-09-30
iShares Russell 2000 Value ETF0.215%-0.132%126,983-1682024-05-30
Rhenman Healthcare Equity L/S RC2 SEK0.211%0.000%126,06402024-12-31
Vanguard Extended Market Index Investor0.207%0.000%121,07102023-08-31
Fidelity® Small Cap Index0.197%1.041%114,9471,1842023-10-31
Fidelity Extended Market Index0.178%-0.817%107,359-8842025-07-31
Bruce0.166%0.000%100,00002025-03-31
Fidelity® Extended Market Index0.170%23.135%99,48218,6912023-11-30
iShares Biotechnology ETF0.159%0.865%95,5458192025-07-31
Schwab US Small-Cap ETF™0.148%-0.047%89,441-422025-07-31
iShares Russell 2000 ETF0.138%-10.899%83,279-10,1872025-06-30
TD Health Sciences - I0.136%0.000%82,23602024-12-31
Vanguard Russell 2000 ETF0.127%0.912%76,2306892025-05-31
State St US Sm Cap Enhanced SL Cl I0.119%0.000%71,59602025-05-31
AST T. Rowe Price Asset Allocation0.116%0.000%70,07402024-11-30
UBS Global Equity Biotech0.130%-0.298%60,504-1812023-03-31
iShares Micro-Cap ETF0.079%0.000%47,75202025-07-31
T. Rowe Price Health Sciences Port0.078%3.828%46,1651,7022024-06-30
BlackRock Extended Mkt Composite0.074%80.592%43,88219,5832023-09-30
State St Russell Sm Cap® Indx SL Cl I0.068%0.000%41,08802025-05-31
Xtrackers Russell 2000 ETF 1C0.067%0.000%40,41502025-05-31
NT R2000 Index Fund - NL0.063%10.616%37,9913,6462025-03-31
SPDR® Russell 2000 US Small Cap ETF0.063%-10.421%37,824-4,4002025-03-31
Extended Equity Market Fund K0.061%-1.958%36,803-7352025-06-30
Vanguard Health Care ETF0.060%-0.958%36,382-3522025-07-31
Schwab Small Cap Index0.060%0.000%36,23302025-05-31
Fidelity Total Market Index0.058%-0.213%35,190-752025-07-31
Fidelity Series Total Market Index0.046%0.000%27,68802025-07-31
iShares Russell 2000 Small-Cap Idx Instl0.046%0.000%27,46902025-05-31
iShares Russell 2000 Growth ETF0.043%-10.899%25,637-3,1362025-06-30
NT Ext Equity Mkt Idx Fd - NL0.040%47.939%24,2997,8742025-06-30
T. Rowe Price U.S. Equities Tr0.038%-2.558%23,125-6072025-06-30
Northern Trust Extended Eq Market Idx0.037%0.000%22,03402025-06-30
NT Ext Equity Mkt Idx Fd - L0.037%0.000%22,03402025-06-30
Nuveen Equity Index R60.035%0.000%21,36802025-05-31
Spartan Extended Market Index Pool F0.035%4.353%21,1948842025-07-31
EQ/Small Company Index IB0.035%0.000%20,99002025-05-31
NT Ext Equity Mkt Idx Fd - DC - NL - T20.031%47.568%18,8686,0822025-06-30
Northern Small Cap Core I0.030%-5.539%18,198-1,0672025-06-30
T. Rowe Price Extended Equity Market Idx0.020%0.000%12,08502025-07-31
Spartan Total Market Index Pool G0.020%0.632%11,939752025-07-31
Fidelity Nasdaq Composite Index0.016%0.000%9,61402025-07-31
NT Quality SCC US Fund - L0.015%-7.361%9,150-7272025-06-30

Discussions

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ufcandstocks418/3/25 07:01am

$IGMS Buy it up so it crashes harder in the next two trading days

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