iTeos Therapeutics, Inc. ($ITOS) Insider Transactions

Last updated: 2026-03-14 10:37 UTC | Total transactions: 80

In the last 12 months, insiders at iTeos Therapeutics, Inc. ($ITOS) filed 80 transactions with the SEC: 4 open-market purchases totaling $38,724,214 and 16 sales totaling $22,281,231. Net insider sentiment: net buying.

iTeos Therapeutics, Inc. operates in the Biological products, (no disgnostic substances) industry (Life sciences sector).

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Recent Insider Transactions

Transaction Date Insider Name Title Transaction Type Security Shares Price Shares Owned Following Total Shares Outstanding % of Owned % of Outstanding
June 9, 2025 Detheux Michel Chief Executive Officer M Common Stock 8400 $4.30 238,330.0000 38,194,341 3.65% 0.02%
June 9, 2025 Detheux Michel Chief Executive Officer S Common Stock 8400 $10.03 229,930.0000 38,194,341 3.52% 0.02%
June 9, 2025 Detheux Michel Chief Executive Officer M Common Stock 43882 $4.30 197,785.0000 38,194,341 28.51% 0.11%
June 9, 2025 Detheux Michel Chief Executive Officer S Common Stock 43882 $10.03 153,903.0000 38,194,341 22.19% 0.11%
June 10, 2025 Detheux Michel Chief Executive Officer M Common Stock 8400 $4.30 238,330.0000 38,194,341 3.65% 0.02%
June 10, 2025 Detheux Michel Chief Executive Officer S Common Stock 8400 $10.02 229,930.0000 38,194,341 3.52% 0.02%
June 10, 2025 Detheux Michel Chief Executive Officer M Common Stock 43883 $4.30 197,786.0000 38,194,341 28.51% 0.11%
June 10, 2025 Detheux Michel Chief Executive Officer S Common Stock 43883 $10.02 153,903.0000 38,194,341 22.19% 0.11%
June 10, 2025 Detheux Michel Chief Executive Officer M Common Stock 18000 $4.30 247,930.0000 38,194,341 7.83% 0.05%
June 10, 2025 Detheux Michel Chief Executive Officer M Common Stock 94027 $4.30 247,930.0000 38,194,341 61.09% 0.25%
June 9, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 8400 $0.00 26,403.0000 38,194,341 24.14% 0.02%
June 9, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 43882 $0.00 137,913.0000 38,194,341 24.14% 0.11%
June 10, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 8400 $0.00 18,003.0000 38,194,341 31.81% 0.02%
June 10, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 43883 $0.00 94,030.0000 38,194,341 31.82% 0.11%
June 10, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 18000 $0.00 3.0000 38,194,341 99.98% 0.05%
June 10, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 94027 $0.00 3.0000 38,194,341 100.00% 0.25%
June 4, 2025 Detheux Michel Chief Executive Officer M Common Stock 8400 $4.30 144,303.0000 38,194,341 6.18% 0.02%
June 4, 2025 Detheux Michel Chief Executive Officer S Common Stock 8400 $10.10 135,903.0000 38,194,341 5.82% 0.02%
June 4, 2025 Detheux Michel Chief Executive Officer M Common Stock 43883 $4.30 179,786.0000 38,194,341 32.29% 0.11%
June 4, 2025 Detheux Michel Chief Executive Officer S Common Stock 43883 $10.10 135,903.0000 38,194,341 24.41% 0.11%
June 5, 2025 Detheux Michel Chief Executive Officer M Common Stock 8400 $4.30 144,303.0000 38,194,341 6.18% 0.02%
June 5, 2025 Detheux Michel Chief Executive Officer S Common Stock 8400 $10.15 135,903.0000 38,194,341 5.82% 0.02%
June 5, 2025 Detheux Michel Chief Executive Officer M Common Stock 43882 $4.30 179,785.0000 38,194,341 32.29% 0.11%
June 5, 2025 Detheux Michel Chief Executive Officer S Common Stock 43882 $10.15 135,903.0000 38,194,341 24.41% 0.11%
June 6, 2025 Detheux Michel Chief Executive Officer M Common Stock 8400 $4.30 144,303.0000 38,194,341 6.18% 0.02%
June 6, 2025 Detheux Michel Chief Executive Officer S Common Stock 8400 $10.21 135,903.0000 38,194,341 5.82% 0.02%
June 6, 2025 Detheux Michel Chief Executive Officer M Common Stock 43882 $4.30 179,785.0000 38,194,341 32.29% 0.11%
June 6, 2025 Detheux Michel Chief Executive Officer S Common Stock 43882 $10.21 135,903.0000 38,194,341 24.41% 0.11%
June 4, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 8400 $0.00 233,395.0000 38,194,341 3.47% 0.02%
June 4, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 43883 $0.00 304,359.0000 38,194,341 12.60% 0.11%
June 5, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 8400 $0.00 224,995.0000 38,194,341 3.60% 0.02%
June 5, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 43882 $0.00 260,477.0000 38,194,341 14.42% 0.11%
June 6, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 8400 $0.00 216,595.0000 38,194,341 3.73% 0.02%
June 6, 2025 Detheux Michel Chief Executive Officer M Stock Option (Right to Buy) 43882 $0.00 216,595.0000 38,194,341 16.85% 0.11%
June 4, 2025 Hallal David Not found M Common Stock 38227 $4.30 38,227.0000 38,194,341 9999.99% 0.10%
June 4, 2025 Hallal David Not found S Common Stock 38227 $10.07 0.0000 38,194,341 100.00% 0.10%
June 5, 2025 Hallal David Not found M Common Stock 38227 $4.30 38,227.0000 38,194,341 9999.99% 0.10%
June 5, 2025 Hallal David Not found S Common Stock 38227 $10.15 0.0000 38,194,341 100.00% 0.10%
June 6, 2025 Hallal David Not found M Common Stock 38228 $4.30 38,228.0000 38,194,341 9999.99% 0.10%
June 6, 2025 Hallal David Not found S Common Stock 38228 $10.24 0.0000 38,194,341 100.00% 0.10%
June 4, 2025 Hallal David Not found M Stock Option (Right to Buy) 38227 $0.00 76,455.0000 38,194,341 33.33% 0.10%
June 5, 2025 Hallal David Not found M Stock Option (Right to Buy) 38227 $0.00 38,228.0000 38,194,341 50.00% 0.10%
June 6, 2025 Hallal David Not found M Stock Option (Right to Buy) 38228 $0.00 0.0000 38,194,341 100.00% 0.10%
May 14, 2025 EcoR1 Capital, LLC TenPercentOwner P Common Stock 1658978 $7.41 7,388,978.0000 38,194,341 28.95% 4.34%
May 15, 2025 EcoR1 Capital, LLC TenPercentOwner P Common Stock 3300000 $8.00 10,688,978.0000 38,194,341 44.66% 8.64%
May 13, 2025 GADICKE ANSBERT Not found S Common Stock 1031931 $8.06 3,452,797.0000 38,194,341 23.01% 2.70%
May 13, 2025 MPM BIOVENTURES 2018, L.P. Not found S Common Stock 630191 $8.06 2,108,594.0000 38,194,341 23.01% 1.65%
May 13, 2025 MPM BioVentures 2014, L.P. Not found S Common Stock 630191 $8.06 2,108,594.0000 38,194,341 23.01% 1.65%
May 13, 2025 Van Hauwermeiren Timothy Not found M Common Stock 22346 $4.30 22,346.0000 38,194,341 9999.99% 0.06%
May 13, 2025 Van Hauwermeiren Timothy Not found M Stock Option (Right to Buy) 22346 $0.00 0.0000 38,194,341 100.00% 0.06%
March 7, 2025 Detheux Michel Chief Executive Officer A Common Stock 77000 $0.00 135,903.0000 38,194,341 130.72% 0.20%
March 7, 2025 Detheux Michel Chief Executive Officer A Stock Option (Right to Buy) 459000 $0.00 459,000.0000 38,194,341 9999.99% 1.20%
March 7, 2025 Gall Matthew Chief Financial Officer A Common Stock 24000 $0.00 89,429.0000 38,194,341 36.68% 0.06%
March 7, 2025 Gall Matthew Chief Financial Officer A Stock Option (Right to Buy) 145000 $0.00 145,000.0000 38,194,341 9999.99% 0.38%
March 7, 2025 McGrath Yvonne Chief Scientific Officer A Common Stock 15300 $0.00 46,300.0000 38,194,341 49.35% 0.04%
March 7, 2025 McGrath Yvonne Chief Scientific Officer A Stock Option (Right to Buy) 91000 $0.00 91,000.0000 38,194,341 9999.99% 0.24%
March 7, 2025 Call Matthew Chief Operating Officer A Common Stock 24000 $0.00 161,898.0000 38,194,341 17.40% 0.06%
March 7, 2025 Call Matthew Chief Operating Officer A Stock Option (Right to Buy) 145000 $0.00 145,000.0000 38,194,341 9999.99% 0.38%
Dec. 6, 2024 Feltquate David Chief Medical Officer A Common Stock 47000 $0.00 47,000.0000 0 9999.99% 0.00%
Nov. 19, 2024 Gall Matthew Chief Financial Officer P Common Stock 5000 $7.73 65,429.0000 0 8.27% 0.00%
Aug. 8, 2024 Detheux Michel Chief Executive Officer G Stock Option (Right to Buy) 442800 $0.00 590,400.0000 0 42.86% 0.00%
Aug. 8, 2024 Detheux Michel Chief Executive Officer G Stock Option (Right to Buy) 442800 $0.00 590,400.0000 0 300.00% 0.00%
Aug. 1, 2024 Feltquate David Chief Medical Officer A Stock Option (Right to Buy) 350000 $0.00 350,000.0000 0 9999.99% 0.00%
June 11, 2024 Ho Tony W Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 Van Hauwermeiren Timothy Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 Lee David K Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 Davis Aaron I. Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 Hallal David Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 DeSimone Jill Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 RHOADS ANN D Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
June 11, 2024 Iannone Robert Not found A Stock Option (Right to Buy) 24200 $0.00 24,200.0000 0 9999.99% 0.00%
May 10, 2024 Boxer Capital, LLC Not found A Common Stock 1142857 $17.50 2,946,915.0000 0 63.35% 0.00%
May 12, 2024 RA CAPITAL MANAGEMENT, L.P. Not found J Common Stock 900000 $0.00 3,517,259.0000 0 20.37% 0.00%
May 10, 2024 RA CAPITAL MANAGEMENT, L.P. Not found P Pre- Funded Warrants (Right to Buy) 5714285 $17.50 5,714,285.0000 0 9999.99% 0.00%
May 12, 2024 RA CAPITAL MANAGEMENT, L.P. Not found J Pre- Funded Warrants (Right to Buy) 900000 $0.00 6,614,285.0000 0 15.75% 0.00%
March 7, 2024 Gall Matthew Chief Financial Officer A Stock Option (Right to Buy) 163200 $0.00 163,200.0000 0 9999.99% 0.00%
March 7, 2024 Call Matthew Chief Operating Officer A Stock Option (Right to Buy) 225000 $0.00 225,000.0000 0 9999.99% 0.00%
March 7, 2024 McGrath Yvonne Chief Scientific Officer A Stock Option (Right to Buy) 153600 $0.00 153,600.0000 0 9999.99% 0.00%
March 7, 2024 Detheux Michel Chief Executive Officer A Stock Option (Right to Buy) 590400 $0.00 590,400.0000 0 9999.99% 0.00%
March 7, 2024 DeSimone Jill Not found A Stock Option (Right to Buy) 44766 $0.00 44,766.0000 0 9999.99% 0.00%