NASDAQ: IGMS
Igm Biosciences Inc Stock Ownership - Who owns Igm Biosciences?

Insider buying vs selling

Have Igm Biosciences Inc insiders been buying or selling?

Buy
Sell
NameRoleDateSharesPriceValue
Mary Beth HarlerChief Executive Officer2025-07-2314,501$1.27
$18.46kSell
Misbah TahirCHIEF FINANCIAL OFFICER2025-07-238,741$1.27
$11.13kSell
Lisa Lynn DeckerCHIEF BUSINESS OFFICER2025-07-234,409$1.27
$5.61kSell
Mary Beth HarlerChief Executive Officer2025-06-161,522$1.20
$1.82kSell
Steven WeberPRINCIPAL ACCOUNTING OFFICER2025-06-16486$1.20
$582.71Sell
Lisa Lynn DeckerCHIEF BUSINESS OFFICER2025-06-16951$1.20
$1.14kSell
Misbah TahirCHIEF FINANCIAL OFFICER2025-06-161,522$1.20
$1.82kSell
Steven WeberPRINCIPAL ACCOUNTING OFFICER2025-05-141,865$1.12
$2.09kSell
Mary Beth HarlerChief Executive Officer2025-03-147,329$1.23
$9.01kSell
Lisa Lynn DeckerCHIEF BUSINESS OFFICER2025-03-144,512$1.23
$5.55kSell

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Net Insider Buy/Sell (L12M) Ownership

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IGMS Shareholders

What type of owners hold Igm Biosciences Inc stock?

Institutional
Insider
Retail
NameHoldSharesValueType
Topsoe Holding A. Haldor17.25%10,400,564$13.21MInsider
Redmile Group LLC10.04%6,053,905$7.69MInsider
Baker Bros Advisors LP6.24%3,763,362$4.78MInsider
Siren LLC5.40%3,255,826$4.13MInstitution
Sanofi2.39%1,438,975$1.83MInstitution
Vanguard Group Inc1.27%767,154$974.29kInstitution
Fred Schwarzer0.74%446,842$567.49kInsider
Blackrock Inc0.64%385,474$489.55kInstitution
Bruce Keyt0.41%246,987$313.67kInsider
Geode Capital Management LLC0.35%213,273$270.86kInstitution

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IGMS vs Biotech Stocks

TickerInst. %Insider %Net Insider (L12M)Net Insider (L3M)
IGMS11.14%35.70%Net SellingNet Selling
WHWK10.49%83.39%Net Buying
VANI2.44%97.56%Net BuyingNet Buying
PMVP33.13%53.27%Net SellingNet Selling
BYSI14.83%14.12%Net SellingNet Selling

Igm Biosciences Stock Ownership FAQ

Who owns Igm Biosciences?

Igm Biosciences (NASDAQ: IGMS) is owned by 11.14% institutional shareholders, 35.70% Igm Biosciences insiders, and 53.16% retail investors. Topsoe Holding A. Haldor is the largest individual Igm Biosciences shareholder, owning 10.40M shares representing 17.25% of the company. Topsoe Holding A. Haldor's Igm Biosciences shares are currently valued at $13.21M.

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