ADC Therapeutics SA (ADCT) Insider Ownership

Historic Insider Ownership Trends

ADC Therapeutics's top three insider shareholders as of March 23, 2026 are Group, Llc Redmile (TenPercentOwner, 28.81Mn shares), Hans Peter Wild (TenPercentOwner, 9.79Mn shares), Ameet Mallik (Chief Executive Officer, 1.45Mn shares).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
Holder Position Shares (Direct) Shares (Indirect) Report Date
Group, Llc Redmile 13,145,712 15,666,731 13 Dec, 2024
Hans Peter Wild 9,788,944 0 15 May, 2025
Ameet Mallik Chief Executive Officer 1,446,769 0 18 Feb, 2026
Jose Carmona Chief Financial Officer 734,376 0 18 Feb, 2026
Mohamed Zaki Chief Medical Officer 682,417 0 18 Feb, 2026
Peter J Graham Chief Legal Officer 620,540 0 18 Feb, 2026
Peter Hug 220,500 0 17 Jun, 2025
Thomas Pfisterer 173,899 0 15 May, 2025
Viviane Monges 144,043 0 17 Jun, 2025
Lisa Michelle Kallebo Chief Accounting Officer 128,224 0 18 Feb, 2026
Victor Sandor 108,286 0 17 Jun, 2025
Jean-Pierre Bizzari 106,902 0 17 Jun, 2025
Ron Squarer 93,627 0 17 Jun, 2025
Robert Azelby 80,405 0 17 Jun, 2025
Timothy Coughlin 40,000 0 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
13 Feb, 2026 Jose Carmona Common Shares A 271,600 $3.99 760,256 D A
13 Feb, 2026 Peter J Graham Common Shares A 294,800 $3.99 653,834 D A
13 Feb, 2026 Lisa Michelle Kallebo Common Shares A 62,900 $3.99 133,657 D A
13 Feb, 2026 Mohamed Zaki Common Shares A 285,200 $3.99 707,020 D A
13 Feb, 2026 Ameet Mallik Common Shares A 900,000 $3.99 1,550,000 D A
13 Feb, 2026 Jose Carmona Common Shares D 25,880 $3.99 734,376 D F
13 Feb, 2026 Mohamed Zaki Common Shares D 24,603 $3.99 682,417 D F
13 Feb, 2026 Ameet Mallik Common Shares D 103,231 $3.99 1,446,769 D F
13 Feb, 2026 Peter J Graham Common Shares D 33,294 $3.99 620,540 D F
13 Feb, 2026 Lisa Michelle Kallebo Common Shares D 5,433 $3.99 128,224 D F
06 Dec, 2025 Ameet Mallik Common Shares D 233,146 $3.29 1,319,101 D F
06 Dec, 2025 Jose Carmona Common Shares D 53,236 $3.29 488,656 D F
06 Dec, 2025 Lisa Michelle Kallebo Common Shares D 7,140 $3.29 70,757 D F
06 Dec, 2025 Peter J Graham Common Shares D 49,508 $3.29 359,034 D F
06 Dec, 2025 Mohamed Zaki Common Shares D 41,068 $3.29 421,820 D F
27 Oct, 2025 Group, Llc Redmile Pre-Funded Warrants A 3,846,153 $3.90 3,846,153 I P
27 Oct, 2025 Group, Llc Redmile Pre-Funded Warrants A 3,846,153 $3.90 3,846,153 D P
13 Jun, 2025 Peter Hug Common Shares D 2,144 $3.58 220,500 D F
13 Jun, 2025 Robert Azelby Common Shares D 12,600 $3.58 80,405 D F
13 Jun, 2025 Jean-Pierre Bizzari Common Shares D 12,600 $3.58 106,902 D F