ADC Therapeutics SA (ADCT) Insider Ownership

Historic Insider Ownership Trends

ADCT's three largest insider shareholders as of June 10, 2026 are Group, Llc Redmile (TenPercentOwner, 28.81Mn shares), Group, Llc Redmile (TenPercentOwner, 22.93Mn shares), Hans Peter Wild (TenPercentOwner, 9.79Mn 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
Hans Peter Wild - 9,788,944 0 15 May, 2025
Peter J Graham Chief Legal Officer 620,540 0 18 Feb, 2026
Timothy Coughlin - 40,000 0 05 Jun, 2025
Group, Llc Redmile - 13,145,712 15,666,731 13 Dec, 2024
Ron Squarer - 93,627 0 17 Jun, 2025
Victor Sandor - 108,286 0 17 Jun, 2025
Jean-Pierre Bizzari - 106,902 0 17 Jun, 2025
Robert Azelby - 80,405 0 17 Jun, 2025
Jose Carmona Chief Financial Officer 734,376 0 18 Feb, 2026
Thomas Pfisterer - 173,899 0 15 May, 2025
Viviane Monges - 144,043 0 17 Jun, 2025
Ameet Mallik Chief Executive Officer 1,446,769 0 18 Feb, 2026
Mohamed Zaki Chief Medical Officer 682,417 0 18 Feb, 2026
Peter Hug - 220,500 0 17 Jun, 2025
Lisa Michelle Kallebo Chief Accounting Officer 128,224 0 18 Feb, 2026

* 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
31 Mar, 2026 Group, Llc Redmile Common Stock D 196,229 $3.75 15,470,502 I S
31 Mar, 2026 Group, Llc Redmile Common Stock D 188,407 $3.75 12,957,305 D S
01 Apr, 2026 Group, Llc Redmile Common Stock D 169,265 $3.80 15,301,237 I S
01 Apr, 2026 Group, Llc Redmile Common Stock D 162,517 $3.80 12,794,788 D S
02 Apr, 2026 Group, Llc Redmile Common Stock D 2,634,506 $3.28 12,666,731 I S
02 Apr, 2026 Group, Llc Redmile Common Stock D 2,529,491 $3.28 10,265,297 D S
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 Peter J Graham Common Shares A 294,800 $3.99 653,834 D A
13 Feb, 2026 Jose Carmona Common Shares A 271,600 $3.99 760,256 D A
13 Feb, 2026 Ameet Mallik Common Shares A 900,000 $3.99 1,550,000 D A
13 Feb, 2026 Mohamed Zaki Common Shares A 285,200 $3.99 707,020 D A
13 Feb, 2026 Mohamed Zaki Common Shares A 285,200 $3.99 707,020 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 D 24,603 $3.99 682,417 D F
13 Feb, 2026 Mohamed Zaki Common Shares D 24,603 $3.99 682,417 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
13 Feb, 2026 Jose Carmona Common Shares D 25,880 $3.99 734,376 D F
13 Feb, 2026 Peter J Graham Common Shares D 33,294 $3.99 620,540 D F