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IGM Biosciences, Inc. SEC Filings

Filed On Filing
13 Nov 2025 SCHEDULE 13G/A
25 Aug 2025 15-12G
18 Aug 2025 SCHEDULE 13D/A
18 Aug 2025 Form 4: Baker Bros. Advisors Lp, Former 10% owner and director and 5 others

Disposed of 4,120,410 shares (Tender Offer) · Disposed of 10,720,924 Non-Voting Common Stock (Tender Offer)

18 Aug 2025 SCHEDULE 13D/A
15 Aug 2025 SCHEDULE 13D/A
15 Aug 2025 Form 4: Redmile Group, Llc, Director and 1 other

Returned 2,964,843 shares to the issuer · Disposed of 7,199,325 Non-Voting Common Stock (Disposition to Issuer) · Disposed of 667,666 Pre-Funded Warrants to Purchase Common Stock (Disposition to Issuer)

14 Aug 2025 EFFECT
14 Aug 2025 Form 4: Hambleton Julie, Director

Returned 2,000 shares to the issuer

14 Aug 2025 EFFECT
14 Aug 2025 EFFECT
14 Aug 2025 EFFECT
14 Aug 2025 EFFECT
14 Aug 2025 Form 4: Lee Michael Stewart, Director

Returned 12,712 shares to the issuer

14 Aug 2025 Form 4: Topsoe Holding A/S, 10% owner

Returned 10,400,564 shares to the issuer · Disposed of 5,044,295 Non-Voting Common Stock (Disposition to Issuer)

14 Aug 2025 Form 4: Topsoe Jakob Haldor, Director

Returned 10,492,276 shares to the issuer · Disposed of 5,044,295 Non-Voting Common Stock (Disposition to Issuer)

14 Aug 2025 Form 4: Topsoe Christina Teng, Director

Returned 10,464,599 shares to the issuer · Disposed of 5,044,295 Non-Voting Common Stock (Disposition to Issuer)

14 Aug 2025 Form 4: Thompson Elizabeth H.z., Director

Returned 7,196 shares to the issuer

14 Aug 2025 Form 4: Strohl William, Director

Returned 125,000 shares to the issuer

14 Aug 2025 Form 4: Harler Mary Beth, Director

Returned 323,680 shares to the issuer

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