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IGM Biosciences, Inc.

IGMSDelisted Aug 14, 2025
Industry
Pharmaceutical Preparations
SEC CIK
0001496323

IGM Biosciences, Inc. was delisted on Aug 14, 2025; its insiders filed their last Form 4 on Aug 18, 2025; 66 institutions reported holding it in 13F filings for Q2 2025, worth $17.9M in total; no superinvestor held it.

13F holders, Q4 2023

Institutional positions in IGM Biosciences, Inc. as of Dec 31, 2023. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
72
−7 vs. Q3 2023
Shares held
21.9M
−407.4K (−1.8%) vs. Q3 2023
Total value
$182.1M
−$4.25M (−2.3%) vs. Q3 2023
New holders
17
21 more added
Sold out
24
21 more reduced

Compare with Q3 2023: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting IGMS on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2023: 72 institutions
Q1 2021: 109 institutionsQ2 2021: 105 institutionsQ3 2021: 107 institutionsQ4 2021: 87 institutionsQ1 2022: 93 institutionsQ2 2022: 89 institutionsQ3 2022: 93 institutionsQ4 2022: 82 institutionsQ1 2023: 75 institutionsQ2 2023: 79 institutionsQ3 2023: 79 institutionsQ4 2023: 72 institutionsQ1 2024: 87 institutionsQ2 2024: 82 institutionsQ3 2024: 72 institutionsQ4 2024: 85 institutionsQ1 2025: 79 institutionsQ2 2025: 66 institutionsQ3 2025: 1 institutionQ4 2025: 0 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ4 2023: $182.1M
Q1 2021: $1.38BQ2 2021: $1.36BQ3 2021: $1.11BQ4 2021: $517.3MQ1 2022: $487.4MQ2 2022: $315.6MQ3 2022: $402.0MQ4 2022: $305.8MQ1 2023: $245.4MQ2 2023: $207.6MQ3 2023: $186.3MQ4 2023: $182.1MQ1 2024: $220.3MQ2 2024: $152.9MQ3 2024: $356.6MQ4 2024: $132.8MQ1 2025: $20.5MQ2 2025: $17.9MQ3 2025: $508Q4 2025: $0Q1 2026: $0Q2 2026: $0
Institutions holding IGMS and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20250$0
Q3 20251$508
Q2 202566$17.9M
Q1 202579$20.5M
Q4 202485$132.8M
Q3 202472$356.6M
Q2 202482$152.9M
Q1 202487$220.3M
Q4 202372$182.1M
Q3 202379$186.3M
Q2 202379$207.6M
Q1 202375$245.4M
Q4 202282$305.8M
Q3 202293$402.0M
Q2 202289$315.6M
Q1 202293$487.4M
Q4 202187$517.3M
Q3 2021107$1.11B
Q2 2021105$1.36B
Q1 2021109$1.38B

Institutions, Q4 2023

Shares, value and share of portfolio for each institution holding IGM Biosciences, Inc.; share changes are against Q3 2023.

Institutions holding IGMS in Q4 2023
InstitutionSharesValue% of portfolioChange in sharesAction
The PNC Financial Services Group, Inc.7$580.00%+7New
Farther Finance Advisors, LLC9$750.00%+9New
US Bancorp17$1410.00%00.0%Unchanged
Signaturefd, LLC30$2490.00%00.0%Unchanged
Russell Investments Group, Ltd.75$6230.00%−21−21.9%Reduced
NBC Securities, Inc.150$1.00K0.00%00.0%Unchanged
Northwestern Mutual Wealth Management Co500$4.16K0.00%+500New
Comerica Bank617$5.13K0.00%+617New
Ameritas Investment Partners, Inc.627$5.21K0.00%00.0%Unchanged
Amalgamated Bank989$8.00K0.00%−104−9.5%Reduced
Tower Research Capital LLC (TRC)1,542$12.8K0.00%−1,356−46.8%Reduced
Legal & General Group Plc1,588$13.2K0.00%−12,635−88.8%Reduced
Simplex Trading, LLC1,810$15.0K0.00%+1,810New
Citigroup Inc1,887$15.7K0.00%+1,450+331.8%Added
California State Teachers Retirement System2,187$18.2K0.00%−11,995−84.6%Reduced
Nisa Investment Advisors, LLC3,900$32.4K0.00%+3,847+7,258.5%Added
Wells Fargo & Company4,235$35.2K0.00%+1,134+36.6%Added
Royal Bank of Canada5,713$48.0K0.00%−490−7.9%Reduced
New York State Common Retirement Fund6,494$54.0K0.00%−33−0.5%Reduced
American International Group, Inc.6,604$54.9K0.00%+650+10.9%Added
Acadian Asset Management LLC8,367$69.0K0.00%+8,367New
JPMorgan Chase & Co9,744$81.0K0.00%−4,531−31.7%Reduced
Pale Fire Capital SE11,601$96.4K0.02%−1,000−7.9%Reduced
Deutsche Bank AG11,702$97.2K0.00%+11,702New
Brevan Howard Capital Management LP11,877$98.7K0.01%+11,877New
Amundi9,196$107.1K0.00%+9,196New
UBS Group AG13,200$109.7K0.00%+6,199+88.5%Added
Susquehanna International Group, LLP13,656$113.5K0.00%+13,656New
Virtus ETF Advisers LLC14,243$118.4K0.08%+4,334+43.7%Added
Exchange Traded Concepts, LLC19,048$158.3K0.00%+4,830+34.0%Added
Rhumbline Advisers19,204$159.6K0.00%+508+2.7%Added
Barclays PLC24,570$204.2K0.00%+17,233+234.9%Added
Bank of America Corp24,732$205.5K0.00%+9,252+59.8%Added
Prelude Capital Management, LLC29,421$244.5K0.02%−7,800−21.0%Reduced
State of Wisconsin Investment Board29,600$246.0K0.00%+17,872+152.4%Added
Susquehanna Portfolio Strategies, LLC30,209$251.0K0.00%+30,209New
Panagora Asset Management Inc30,273$251.6K0.00%+30,273New
Alliancebernstein L.P.32,300$268.4K0.00%−3,060−8.7%Reduced
Jane Street Group, LLC35,635$296.1K0.00%+35,635New
Renaissance Technologies LLC36,600$304.0K0.00%−54,300−59.7%Reduced
Dimensional Fund Advisors LP39,453$328.0K0.00%−720−1.8%Reduced
Eagle Bay Advisors LLC44,635$370.9K0.23%00.0%Unchanged
D. E. Shaw & Co., Inc.47,245$392.6K0.00%−28,669−37.8%Reduced
Manufacturers Life Insurance Company, The48,942$406.7K0.00%00.0%Unchanged
Nuveen Asset Management, LLC49,823$414.0K0.00%−29,364−37.1%Reduced
Bank of New York Mellon Corp51,997$432.1K0.00%−71−0.1%Reduced
Pennant Investors, LP64,900$539.3K0.17%+64,900New
Bruce & Co., Inc.65,000$540.1K0.19%−55,000−45.8%Reduced
Prudential Financial Inc65,870$547.4K0.00%+65,870New
Woodline Partners LP75,000$623.3K0.01%00.0%Unchanged
TD Asset Management Inc83,452$693.5K0.00%00.0%Unchanged
Morgan Stanley95,041$789.8K0.00%+21,247+28.8%Added
Charles Schwab Investment Management Inc120,817$1.00M0.00%+21,052+21.1%Added
Hudson Bay Capital Management LP124,260$1.03M0.01%00.0%Unchanged
Exome Asset Management LLC135,596$1.13M1.11%+135,596New
Northern Trust Corp136,796$1.14M0.00%+1,013+0.7%Added
Samsara BioCapital, LLC154,664$1.29M0.20%00.0%Unchanged
Rhenman & Partners Asset Management AB200,000$1.66M0.17%00.0%Unchanged
Citadel Advisors LLC211,508$1.76M0.00%+192,656+1,021.9%Added
Millennium Management LLC247,196$2.05M0.00%−520,867−67.8%Reduced
State Street Corp307,468$2.56M0.00%+18,371+6.4%Added
Geode Capital Management, LLC326,656$2.71M0.00%+34,124+11.7%Added
Adage Capital Partners GP, L.L.C.400,000$3.32M0.01%+400,000New
BlackRock Inc.762,470$6.34M0.00%−108,446−12.5%Reduced
Vanguard Group Inc897,149$7.46M0.00%−2,858−0.3%Reduced
Ra Capital Management, L.P.937,500$7.79M0.12%00.0%Unchanged
Goldman Sachs Group Inc1,040,509$8.65M0.00%+583,516+127.7%Added
FMR LLC1,698,506$14.1M0.00%−438,466−20.5%Reduced
Redmile Group, LLC2,971,542$24.7M0.88%00.0%Unchanged
Artal Group S.A.3,100,422$25.8M0.88%+578,178+22.9%Added
Price T Rowe Associates Inc3,260,022$27.1M0.00%+17,307+0.5%Added
Baker Bros. Advisors LP3,691,011$30.7M0.35%+533,247+16.9%Added
Great Point Partners LLC0$00.00%−615,317−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−453,898−100.0%Sold out
Opaleye Management Inc.0$00.00%−261,000−100.0%Sold out
Candriam Luxembourg S.C.A.0$00.00%−175,008−100.0%Sold out
First Manhattan Co0$00.00%−172,200−100.0%Sold out
Gsa Capital Partners LLP0$00.00%−133,276−100.0%Sold out
Jacobs Levy Equity Management, Inc0$00.00%−56,237−100.0%Sold out
Putnam Investments LLC0$00.00%−36,474−100.0%Sold out
Swiss National Bank0$00.00%−28,600−100.0%Sold out
Moore Capital Management, LP0$00.00%−27,113−100.0%Sold out
Tudor Investment Corp Et Al0$00.00%−14,486−100.0%Sold out
XTX Topco Ltd0$00.00%−11,445−100.0%Sold out
UBS Asset Management Americas Inc0$00.00%−11,145−100.0%Sold out
Lazard Asset Management LLC0$00.00%−6,303−100.0%Sold out
DekaBank Deutsche Girozentrale0$00.00%−6,303−100.0%Sold out
Quantbot Technologies LP0$00.00%−1,800−100.0%Sold out
Qube Research & Technologies Ltd0$00.00%−936−100.0%Sold out
China Universal Asset Management Co., Ltd.0$00.00%−837−100.0%Sold out
Great West Life Assurance Co0$00.00%−569−100.0%Sold out
Cutler Group LP0$00.00%−400−100.0%Sold out
Group One Trading, L.P.0$00.00%−200−100.0%Sold out
Lindbrook Capital, LLC0$00.00%−150−100.0%Sold out
Daiwa Securities Group Inc.0$00.00%−88−100.0%Sold out
Toronto Dominion Bank0$00.00%−34−100.0%Sold out