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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, Q2 2023

Institutional positions in IGM Biosciences, Inc. as of Jun 30, 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
79
+4 vs. Q1 2023
Shares held
22.3M
+4.41M (+24.7%) vs. Q1 2023
Total value
$207.6M
−$37.8M (−15.4%) vs. Q1 2023
New holders
20
37 more added
Sold out
16
16 more reduced

Compare with Q1 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 holdersQ2 2023: 79 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 heldQ2 2023: $207.6M
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, Q2 2023

Shares, value and share of portfolio for each institution holding IGM Biosciences, Inc.; share changes are against Q1 2023.

Institutions holding IGMS in Q2 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Price T Rowe Associates Inc3,230,870$29.8M0.00%+1,109,995+52.3%Added
Baker Bros. Advisors LP3,157,210$29.1M0.17%+5540.0%Added
Redmile Group, LLC2,971,542$27.4M1.05%−362,813−10.9%Reduced
Artal Group S.A.2,522,244$23.3M0.75%+12,272+0.5%Added
FMR LLC2,135,119$19.7M0.00%+1,289,528+152.5%Added
Millennium Management LLC984,663$9.09M0.01%+927,203+1,613.6%Added
Ra Capital Management, L.P.937,500$8.65M0.16%+937,500New
BlackRock Inc.857,171$7.91M0.00%+86,575+11.2%Added
UBS Asset Management Americas Inc485,027$6.66M0.00%00.0%Unchanged
Vanguard Group Inc697,288$6.44M0.00%+116,926+20.1%Added
Goldman Sachs Group Inc672,189$6.20M0.00%+278,675+70.8%Added
Great Point Partners LLC500,000$4.62M0.92%+500,000New
State Street Corp261,249$2.41M0.00%+31,443+13.7%Added
Geode Capital Management, LLC220,417$2.03M0.00%+22,360+11.3%Added
Rhenman & Partners Asset Management AB200,000$1.85M0.19%+105,000+110.5%Added
Renaissance Technologies LLC176,000$1.62M0.00%+133,300+312.2%Added
D. E. Shaw & Co., Inc.175,586$1.62M0.00%−148,951−45.9%Reduced
Candriam Luxembourg S.C.A.175,008$1.62M0.01%−12,791−6.8%Reduced
Samsara BioCapital, LLC154,664$1.43M0.25%00.0%Unchanged
Jacobs Levy Equity Management, Inc137,575$1.27M0.01%+137,575New
Northern Trust Corp120,774$1.11M0.00%+1,974+1.7%Added
Gsa Capital Partners LLP106,918$987.0K0.10%+59,733+126.6%Added
Morgan Stanley99,936$922.4K0.00%+18,252+22.3%Added
Charles Schwab Investment Management Inc97,293$898.0K0.00%+3,477+3.7%Added
Nuveen Asset Management, LLC79,187$730.9K0.00%−1,982−2.4%Reduced
Woodline Partners LP75,000$692.3K0.01%−78,825−51.2%Reduced
Bank of New York Mellon Corp72,188$666.3K0.00%+6,152+9.3%Added
Walleye Capital LLC69,417$640.7K0.01%+69,417New
Opaleye Management Inc.63,500$586.1K0.14%+63,500New
Bruce & Co., Inc.55,000$506.6K0.14%00.0%Unchanged
Dimensional Fund Advisors LP52,253$482.3K0.00%−42,739−45.0%Reduced
Moore Capital Management, LP50,000$461.5K0.01%+50,000New
Manufacturers Life Insurance Company, The48,942$451.7K0.00%+11,286+30.0%Added
Eagle Bay Advisors LLC44,635$412.0K0.24%+3,000+7.2%Added
Susquehanna International Group, LLP41,941$387.1K0.00%+41,941New
TD Asset Management Inc41,726$385.1K0.00%+22,833+120.9%Added
Alliancebernstein L.P.32,770$302.5K0.00%+6,870+26.5%Added
Putnam Investments LLC29,176$269.3K0.00%+8,518+41.2%Added
Swiss National Bank28,600$264.0K0.00%+6,600+30.0%Added
Squarepoint Ops LLC26,312$242.9K0.00%+26,312New
Citadel Advisors LLC25,154$232.2K0.00%+19,379+335.6%Added
Maven Securities LTD24,800$228.9K0.03%+24,800New
Trexquant Investment LP23,387$215.9K0.01%+23,387New
Rhumbline Advisers20,850$192.4K0.00%+5,915+39.6%Added
Jump Financial, LLC19,783$182.6K0.01%+19,783New
Prelude Capital Management, LLC19,675$181.6K0.02%+19,675New
Verition Fund Management LLC17,306$159.7K0.00%+17,306New
Bank of America Corp16,607$153.3K0.00%+1,079+6.9%Added
California State Teachers Retirement System15,547$143.5K0.00%+2,674+20.8%Added
HRT Financial LP15,257$140.0K0.00%+15,257New
Engineers Gate Manager LP14,734$136.0K0.01%+14,734New
Exchange Traded Concepts, LLC13,800$127.4K0.00%+13,800New
Prudential Financial Inc12,070$111.4K0.00%+12,070New
Legal & General Group Plc11,491$106.1K0.00%+7,253+171.1%Added
Tudor Investment Corp Et Al11,341$104.7K0.00%−3,156−21.8%Reduced
Invesco Ltd.11,312$104.4K0.00%+822+7.8%Added
JPMorgan Chase & Co10,944$101.0K0.00%−2,856−20.7%Reduced
Virtus ETF Advisers LLC10,896$100.6K0.06%+5,783+113.1%Added
Credit Suisse AG10,607$97.9K0.00%−604−5.4%Reduced
Cubist Systematic Strategies, LLC10,500$96.9K0.00%+8,311+379.7%Added
UBS Group AG7,956$73.4K0.00%+3,148+65.5%Added
Barclays PLC7,569$69.9K0.00%−690−8.4%Reduced
New York State Common Retirement Fund6,473$59.7K0.00%−22−0.3%Reduced
American International Group, Inc.5,742$53.0K0.00%+636+12.5%Added
Royal Bank of Canada5,445$50.0K0.00%+553+11.3%Added
Deutsche Bank AG4,965$45.8K0.00%−2,158−30.3%Reduced
Wells Fargo & Company4,648$42.9K0.00%+2,529+119.3%Added
Citigroup Inc4,382$40.4K0.00%+3,451+370.7%Added
Lazard Asset Management LLC2,894$26.0K0.00%+2,894New
Tower Research Capital LLC (TRC)2,516$23.2K0.00%−3,606−58.9%Reduced
Amalgamated Bank1,093$10.0K0.00%−276−20.2%Reduced
Ameritas Investment Partners, Inc.627$5.79K0.00%00.0%Unchanged
Great West Life Assurance Co569$5.00K0.00%00.0%Unchanged
US Bancorp398$3.67K0.00%+117+41.6%Added
China Universal Asset Management Co., Ltd.387$3.57K0.00%−8−2.0%Reduced
Endurance Wealth Management, Inc.300$3.00K0.00%+300New
Signaturefd, LLC301$2.78K0.00%−324−51.8%Reduced
Daiwa Securities Group Inc.88$1.00K0.00%00.0%Unchanged
Toronto Dominion Bank34$00.00%+34New
Alkeon Capital Management LLC0$00.00%−711,777−100.0%Sold out
Marshall Wace, LLP0$00.00%−220,319−100.0%Sold out
Point72 Asset Management, L.P.0$00.00%−129,740−100.0%Sold out
ExodusPoint Capital Management, LP0$00.00%−59,650−100.0%Sold out
Raymond James & Associates0$00.00%−41,348−100.0%Sold out
Vident Investment Advisory, LLC0$00.00%−38,078−100.0%Sold out
Jane Street Group, LLC0$00.00%−13,630−100.0%Sold out
Two Sigma Investments, LP0$00.00%−11,400−100.0%Sold out
DekaBank Deutsche Girozentrale0$00.00%−9,100−100.0%Sold out
MetLife Investment Management0$00.00%−5,702−100.0%Sold out
Point72 Middle East FZE0$00.00%−2,569−100.0%Sold out
Lindbrook Capital, LLC0$00.00%−656−100.0%Sold out
Metropolitan Life Insurance Co0$00.00%−626−100.0%Sold out
Quadrant Capital Group LLC0$00.00%−96−100.0%Sold out
Ellevest, Inc.0$00.00%−11−100.0%Sold out
Nisa Investment Advisors, LLC0$00.00%−24−100.0%Sold out