ADC Therapeutics SA (ADCT) Insider Ownership

Historic Insider Ownership Trends

Over the 90-day window ending January 10, 2026, ADC Therapeutics's three dominant insider ownership positions are held by TenPercentOwner Group, Llc Redmile (28.81Mn shares), TenPercentOwner Hans Peter Wild (9.79Mn shares), Chief Executive Officer Ameet Mallik (1.32Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares Report Date
Group, Llc Redmile 28,812,443 13 Dec, 2024
Hans Peter Wild 9,788,944 15 May, 2025
Ameet Mallik Chief Executive Officer 1,319,101 09 Dec, 2025
Jose Carmona Chief Financial Officer 488,656 09 Dec, 2025
Mohamed Zaki Chief Medical Officer 421,820 09 Dec, 2025
Peter J Graham Chief Legal Officer 359,034 09 Dec, 2025
Peter Hug 220,500 17 Jun, 2025
Thomas Pfisterer 173,899 15 May, 2025
Viviane Monges 144,043 17 Jun, 2025
Victor Sandor 108,286 17 Jun, 2025
Jean-Pierre Bizzari 106,902 17 Jun, 2025
Ron Squarer 93,627 17 Jun, 2025
Robert Azelby 80,405 17 Jun, 2025
Lisa Michelle Kallebo Chief Accounting Officer 70,757 09 Dec, 2025
Timothy Coughlin 40,000 05 Jun, 2025

* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
Transaction Date Insider Name Security Class Transaction Type Shares Traded Price Shares Remaining Ownership Code
06 Dec, 2025 Peter J Graham Common Shares D 49,508 $3.29 359,034 D F
06 Dec, 2025 Jose Carmona Common Shares D 53,236 $3.29 488,656 D F
06 Dec, 2025 Ameet Mallik Common Shares D 233,146 $3.29 1,319,101 D F
06 Dec, 2025 Mohamed Zaki Common Shares D 41,068 $3.29 421,820 D F
06 Dec, 2025 Lisa Michelle Kallebo Common Shares D 7,140 $3.29 70,757 D F
13 Jun, 2025 Ron Squarer Common Shares D 15,184 $3.58 93,627 D F
13 Jun, 2025 Victor Sandor Common Shares D 12,600 $3.58 108,286 D F
13 Jun, 2025 Jean-Pierre Bizzari Common Shares D 12,600 $3.58 106,902 D F
13 Jun, 2025 Robert Azelby Common Shares D 12,600 $3.58 80,405 D F
13 Jun, 2025 Viviane Monges Common Shares D 2,584 $3.58 144,043 D F
13 Jun, 2025 Peter Hug Common Shares D 2,144 $3.58 220,500 D F
03 Jun, 2025 Timothy Coughlin Common Shares A 40,000 $0.00 40,000 D A
03 Jun, 2025 Ron Squarer Common Shares A 40,000 $0.00 108,811 D A
03 Jun, 2025 Victor Sandor Common Shares A 40,000 $0.00 120,886 D A
03 Jun, 2025 Jean-Pierre Bizzari Common Shares A 40,000 $0.00 119,502 D A
03 Jun, 2025 Robert Azelby - - 93,005 D
03 Jun, 2025 Robert Azelby Common Shares A 40,000 $0.00 93,005 D A
03 Jun, 2025 Viviane Monges Common Shares A 40,000 $0.00 146,627 D A
03 Jun, 2025 Peter Hug Common Shares A 40,000 $0.00 222,644 D A
15 May, 2025 Hans Peter Wild - - 9,788,944 D