FilingPulse

IGMS insider transaction filings

IGM Biosciences, Inc. — 37 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2025-08-18. Screen IGMS transaction legs live →

FiledFormInsiderReported transactionsSource
2025-08-184BAKER BROS. ADVISORS LP
667, L.P.
Baker Brothers Life Sciences LP
BAKER FELIX
BAKER JULIAN
Baker Bros. Advisors (GP) LLC		Code (U): 357,048 · Code (U): 3,763,362 · Code (U): 834,707 (derivative) @ $0 · Code (U): 9,886,217 (derivative) @ $0EDGAR
2025-08-154Redmile Group, LLC — Director, 10% owner
Green Jeremy — 10% owner		Disposition to issuer (D): 2,964,843 · Disposition to issuer (D): 7,199,325 (derivative) · Disposition to issuer (D): 667,666 (derivative)EDGAR
2025-08-144Hambleton Julie — DirectorDisposition to issuer (D): 2,000EDGAR
2025-08-144Topsoe Holding A/S — 10% ownerDisposition to issuer (D): 10,400,564 · Disposition to issuer (D): 5,044,295 (derivative) @ $0EDGAR
2025-08-144Topsoe Jakob Haldor — Director, 10% ownerDisposition to issuer (D): 91,712 · Disposition to issuer (D): 10,400,564 · Disposition to issuer (D): 5,044,295 (derivative) @ $0EDGAR
2025-08-144Topsoe Christina Teng — Director, 10% ownerDisposition to issuer (D): 54,235 · Disposition to issuer (D): 10,400,564 · Disposition to issuer (D): 9,800 · Disposition to issuer (D): 5,044,295 (derivative) @ $0EDGAR
2025-08-144Thompson Elizabeth H.Z. — DirectorDisposition to issuer (D): 7,196EDGAR
2025-08-144Strohl William — DirectorDisposition to issuer (D): 125,000EDGAR
2025-08-144Harler Mary Beth — Chief Executive Officer, DirectorDisposition to issuer (D): 323,680EDGAR
2025-08-144Lee Michael Stewart — DirectorDisposition to issuer (D): 12,712EDGAR
2025-08-144BEHRENS M KATHLEEN — DirectorDisposition to issuer (D): 22,222 · Disposition to issuer (D): 330,700 · Disposition to issuer (D): 29,807 · Disposition to issuer (D): 29,806EDGAR
2025-07-254Tahir Misbah — CHIEF FINANCIAL OFFICERSale (S): 8,741 @ $1.27EDGAR
2025-07-254Harler Mary Beth — Chief Executive Officer, DirectorSale (S): 14,501 @ $1.27EDGAR
2025-07-254Decker Lisa Lynn — CHIEF BUSINESS OFFICERSale (S): 4,409 @ $1.27EDGAR
2025-07-024Topsoe Jakob Haldor — Director, 10% ownerGrant/award (A): 828 @ $0EDGAR
2025-07-024Topsoe Christina Teng — Director, 10% ownerGrant/award (A): 1,284 @ $0EDGAR
2025-07-024Thompson Elizabeth H.Z. — DirectorGrant/award (A): 694 @ $0EDGAR
2025-07-024Lee Michael Stewart — DirectorGrant/award (A): 828 @ $0EDGAR
2025-07-024Redmile Group, LLC — Director, 10% owner
Green Jeremy — 10% owner		Grant/award (A): 828 @ $0EDGAR
2025-07-024BEHRENS M KATHLEEN — DirectorGrant/award (A): 1,471 @ $0EDGAR
2025-07-024BAKER BROS. ADVISORS LP — Director, 10% owner
667, L.P. — Director, 10% owner
Baker Brothers Life Sciences LP — Director, 10% owner
BAKER FELIX — Director, 10% owner
BAKER JULIAN — Director, 10% owner
Baker Bros. Advisors (GP) LLC — Director, 10% owner		Grant/award (A): 953 @ $0 · Grant/award (A): 953 @ $0EDGAR
2025-06-204Weber Steven — PRINCIPAL ACCOUNTING OFFICERSale (S): 486 @ $1.20EDGAR
2025-06-204Tahir Misbah — CHIEF FINANCIAL OFFICERSale (S): 1,522 @ $1.20EDGAR
2025-06-204Harler Mary Beth — Chief Executive Officer, DirectorSale (S): 1,522 @ $1.20EDGAR
2025-06-204Decker Lisa Lynn — CHIEF BUSINESS OFFICERSale (S): 951 @ $1.20EDGAR
2025-05-164Weber Steven — PRINCIPAL ACCOUNTING OFFICERSale (S): 1,865 @ $1.12EDGAR
2025-04-024Thompson Elizabeth H.Z. — DirectorGrant/award (A): 694 @ $0EDGAR
2025-04-024Topsoe Jakob Haldor — Director, 10% ownerGrant/award (A): 828 @ $0EDGAR
2025-04-024Topsoe Christina Teng — Director, 10% ownerGrant/award (A): 1,284 @ $0EDGAR
2025-04-024Lee Michael Stewart — DirectorGrant/award (A): 828 @ $0EDGAR
2025-04-024Redmile Group, LLC — Director, 10% owner
Green Jeremy — Director, 10% owner		Grant/award (A): 828 @ $0EDGAR
2025-04-024BEHRENS M KATHLEEN — DirectorGrant/award (A): 1,471 @ $0EDGAR
2025-04-024BAKER BROS. ADVISORS LP — Director, 10% owner
667, L.P. — Director, 10% owner
Baker Brothers Life Sciences LP — Director, 10% owner
BAKER FELIX — Director, 10% owner
BAKER JULIAN — Director, 10% owner
Baker Bros. Advisors (GP) LLC — Director, 10% owner		Grant/award (A): 953 @ $0 · Grant/award (A): 953 @ $0EDGAR
2025-03-184Weber Steven — PRINCIPAL ACCOUNTING OFFICERSale (S): 1,701 @ $1.23EDGAR
2025-03-184Tahir Misbah — CHIEF FINANCIAL OFFICERSale (S): 7,329 @ $1.23EDGAR
2025-03-184Harler Mary Beth — Chief Executive Officer, DirectorSale (S): 7,329 @ $1.23EDGAR
2025-03-184Decker Lisa Lynn — CHIEF BUSINESS OFFICERSale (S): 4,512 @ $1.23EDGAR

Recent 8-K events — IGM Biosciences, Inc.

FiledFormItems reportedSource
2025-08-148-K2.01 — Completion of Acquisition or Disposition of Assets
3.01 — Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing
3.03 — Material Modification to Rights of Security Holders
5.01 — Changes in Control of Registrant
5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
5.03 — Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
9.01 — Financial Statements and Exhibits		EDGAR
2025-07-018-K1.01 — Entry into a Material Definitive Agreement
5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits		EDGAR
2025-06-118-K3.01 — Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of ListingEDGAR
2025-05-298-K1.01 — Entry into a Material Definitive Agreement
1.02 — Termination of a Material Definitive Agreement
9.01 — Financial Statements and Exhibits		EDGAR
2025-05-088-K1.02 — Termination of a Material Definitive Agreement
7.01 — Regulation FD Disclosure		EDGAR
2025-03-068-K/A?EDGAR
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