ITOS insider transaction filings

iTeos Therapeutics, Inc. — 39 most recent Form 4 filings from SEC EDGAR, normalized by FilingPulse. Latest filing: 2025-08-29. Screen ITOS transaction legs live →

Insider transaction summary — last 90 days

No Form 4 filings for ITOS between 2026-06-24 and 2026-09-22. The table below lists the most recent filings on record.

Recent Form 4 filings — iTeos Therapeutics, Inc.

FiledFormInsiderReported transactionsSource
2025-08-294Call Matthew — Chief Operating OfficerCode (U): 161,898 · Disposition to issuer (D): 9,063 (derivative) · Disposition to issuer (D): 135,937 (derivative) · Disposition to issuer (D): 41,694 (derivative) · Disposition to issuer (D): 66,170 (derivative) · Disposition to issuer (D): 17,074 (derivative) · +1 moreEDGAR
2025-08-294Detheux Michel — Chief Executive Officer, DirectorCode (U): 153,903 · Code (U): 94,027 · Disposition to issuer (D): 14,185 (derivative) · Disposition to issuer (D): 444,815 (derivative) · Disposition to issuer (D): 94,336 (derivative) · Disposition to issuer (D): 50,128 (derivative) · +3 moreEDGAR
2025-08-294Lee David K — DirectorDisposition to issuer (D): 21,141 (derivative) · Disposition to issuer (D): 23,625 (derivative)EDGAR
2025-08-294Feltquate David — Chief Medical OfficerCode (U): 47,000EDGAR
2025-08-294Gall Matthew — Chief Financial OfficerCode (U): 89,429 · Disposition to issuer (D): 9,063 (derivative) · Disposition to issuer (D): 135,937 (derivative) · Disposition to issuer (D): 42,388 (derivative) · Disposition to issuer (D): 8,123 (derivative) · Disposition to issuer (D): 252,135 (derivative)EDGAR
2025-08-294McGrath Yvonne — Chief Scientific OfficerCode (U): 46,300 · Disposition to issuer (D): 91,000 (derivative) · Disposition to issuer (D): 69,069 (derivative) · Disposition to issuer (D): 16,054 (derivative)EDGAR
2025-08-294Hallal David — DirectorDisposition to issuer (D): 25,140 (derivative) · Disposition to issuer (D): 146,160 (derivative)EDGAR
2025-08-294RHOADS ANN D — DirectorDisposition to issuer (D): 27,178 (derivative)EDGAR
2025-06-114Detheux Michel — Chief Executive OfficerOption exercise (M): 8,400 @ $4.30 · Sale (S): 8,400 @ $10.03 · Option exercise (M): 43,882 @ $4.30 · Sale (S): 43,882 @ $10.03 · Option exercise (M): 8,400 @ $4.30 · Sale (S): 8,400 @ $10.02 · +10 moreEDGAR
2025-06-064Detheux Michel — Chief Executive OfficerOption exercise (M): 8,400 @ $4.30 · Sale (S): 8,400 @ $10.10 · Option exercise (M): 43,883 @ $4.30 · Sale (S): 43,883 @ $10.10 · Option exercise (M): 8,400 @ $4.30 · Sale (S): 8,400 @ $10.15 · +12 moreEDGAR
2025-06-064Hallal David — DirectorOption exercise (M): 38,227 @ $4.30 · Sale (S): 38,227 @ $10.07 · Option exercise (M): 38,227 @ $4.30 · Sale (S): 38,227 @ $10.15 · Option exercise (M): 38,228 @ $4.30 · Sale (S): 38,228 @ $10.24 · +3 moreEDGAR
2025-05-164EcoR1 Capital, LLC — 10% ownerPurchase (P): 1,658,978 @ $7.41 · Purchase (P): 3,300,000 @ $8EDGAR
2025-05-154MPM BIOVENTURES 2018, L.P.
MPM BioVentures 2018 LLC
MPM BioVentures 2018 GP LLC
Sale (S): 630,191 @ $8.06EDGAR
2025-05-154MPM BioVentures 2014, L.P.
MPM BioVentures 2014 (B), L.P.
MPM Asset Management Investors BV2014 LLC
MPM BioVentures 2014 GP LLC
MPM BioVentures 2014 LLC
MPM BIOVENTURES 2018 (B), L.P.
MPM ASSET MANAGEMENT INVESTORS BV2018 LLC
EVNIN LUKE
Foley Todd
Sale (S): 630,191 @ $8.06EDGAR
2025-05-154GADICKE ANSBERT
MPM BioImpact LLC
Oncology Impact Fund (Cayman) Management L.P.
UBS Oncology Impact Fund L.P.
Sale (S): 1,031,931 @ $8.06EDGAR
2025-05-144Van Hauwermeiren Timothy — DirectorOption exercise (M): 22,346 @ $4.30 · Option exercise (M): 22,346 (derivative) @ $0EDGAR
2025-03-114Call Matthew — Chief Operating OfficerGrant/award (A): 24,000 @ $0 · Grant/award (A): 145,000 (derivative) @ $0EDGAR
2025-03-114Detheux Michel — Chief Executive OfficerGrant/award (A): 77,000 @ $0 · Grant/award (A): 459,000 (derivative) @ $0EDGAR
2025-03-114McGrath Yvonne — Chief Scientific OfficerGrant/award (A): 15,300 @ $0 · Grant/award (A): 91,000 (derivative) @ $0EDGAR
2025-03-114Gall Matthew — Chief Financial OfficerGrant/award (A): 24,000 @ $0 · Grant/award (A): 145,000 (derivative) @ $0EDGAR
2024-12-064Feltquate David — Chief Medical OfficerGrant/award (A): 47,000 @ $0EDGAR
2024-11-194Gall Matthew — Chief Financial OfficerPurchase (P): 5,000 @ $7.73EDGAR
2024-08-094Detheux Michel — Chief Executive OfficerGift (G): 442,800 (derivative) @ $0 · Gift (G): 442,800 (derivative) @ $0EDGAR
2024-08-054Feltquate David — Chief Medical OfficerGrant/award (A): 350,000 (derivative) @ $0EDGAR
2024-06-134Van Hauwermeiren Timothy — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134Lee David K — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134DeSimone Jill — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134Iannone Robert — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134Ho Tony W — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134Davis Aaron I. — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134Hallal David — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-06-134RHOADS ANN D — DirectorGrant/award (A): 24,200 (derivative) @ $0EDGAR
2024-05-144RA CAPITAL MANAGEMENT, L.P.
RA Capital Healthcare Fund LP
Kolchinsky Peter
Shah Rajeev M.
Other (J): 900,000 · Purchase (P): 5,714,285 (derivative) @ $17.50 · Other (J): 900,000 (derivative)EDGAR
2024-05-144Boxer Capital, LLC
Boxer Asset Management Inc.
LEWIS JOSEPH
Davis Aaron I. — Director
Grant/award (A): 1,142,857 @ $17.50EDGAR
2024-03-084Gall Matthew — Chief Financial OfficerGrant/award (A): 163,200 (derivative) @ $0EDGAR
2024-03-084Call Matthew — Chief Operating OfficerGrant/award (A): 225,000 (derivative) @ $0EDGAR
2024-03-084McGrath Yvonne — Chief Scientific OfficerGrant/award (A): 153,600 (derivative) @ $0EDGAR
2024-03-084Detheux Michel — Chief Executive OfficerGrant/award (A): 590,400 (derivative) @ $0EDGAR
2024-03-074DeSimone Jill — DirectorGrant/award (A): 44,766 (derivative) @ $0EDGAR

Recent 8-K events — iTeos Therapeutics, Inc.

FiledFormItems reportedSource
2025-08-298-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
2025-07-218-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
8.01 — Other Events
9.01 — Financial Statements and Exhibits
EDGAR
2025-06-178-K5.07 — Submission of Matters to a Vote of Security HoldersEDGAR
2025-06-058-K5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers
9.01 — Financial Statements and Exhibits
EDGAR
2025-05-288-K?
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
2025-05-138-K1.02 — Termination of a Material Definitive Agreement
7.01 — Regulation FD Disclosure
EDGAR
2025-01-138-K7.01 — Regulation FD Disclosure
9.01 — Financial Statements and Exhibits
EDGAR
2024-11-048-K5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain OfficersEDGAR
2024-09-168-K7.01 — Regulation FD DisclosureEDGAR
2024-06-138-K5.07 — Submission of Matters to a Vote of Security HoldersEDGAR
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