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Who

Ameet Mallik

Chief Executive Officer

Company insider

Files Form 4 as: Chief Executive Officer, ADC Therapeutics SA; Director, Atara Biotherapeutics; Chief Executive Officer, Rafael Holdings.

In numbers

Trades disclosed
20
Buys
0
Sells
1
Bought
$0
Sold
$133K
Companies
3
Companies where not an officer
1
First trade
27 May 2021
Last trade
30 Jun 2026
Last filed
2 Jul 2026

Companies traded

Where they are an officer
ADCT ADC Therapeutics SADirector, Officer · Biotechnology · last 30 Jun 20260 buys · 1 sell
RFL Rafael HoldingsDirector, Officer · Biotechnology · last 1 Feb 20220 buys · 0 sells
Everywhere else they filed: board seats, 10% stakes, other companies
ATRA Atara BiotherapeuticsDirector · Biotechnology · last 10 Jun 20250 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
30 Jun 2026filed 2 Jul 2026ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code A—675,000 at $0.00filing
30 Jun 2026filed 2 Jul 2026ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code A—675,000 at $0.00filing
13 Feb 2026filed 18 Feb 2026ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code A$3.6M900,000 at $3.99filing
13 Feb 2026filed 18 Feb 2026ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code F$412K103,231 at $3.99filing
13 Feb 2026filed 18 Feb 2026ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code A$3.6M900,000 at $3.99filing
13 Feb 2026filed 18 Feb 2026ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code F$412K103,231 at $3.99filing
6 Dec 2025filed 9 Dec 2025ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code F$767K233,146 at $3.29filing
10 Jun 2025filed 12 Jun 2025ATRA Atara BiotherapeuticsBiotechnologySEC FORM 4 Code A—7,828 at $0.00filing
6 May 2025filed 8 May 2025ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code F$35K26,758 at $1.29filing
13 Feb 2025filed 14 Feb 2025ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code A$1.0M650,000 at $1.61filing
6 Dec 2024filed 9 Dec 2024ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Code F$746K238,343 at $3.13filing
7 May 2024filed 9 May 2024ADCT ADC Therapeutics SABiotechnologySEC FORM 4 Sold$133K29,731 at $4.48filing
31 Mar 2024filed 2 Apr 2024ATRA Atara BiotherapeuticsBiotechnologySEC FORM 4 Code A—150,000 at $0.00filing
31 May 2023filed 2 Jun 2023ATRA Atara Biotherapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—79,500 at $0.00filing
31 May 2023filed 2 Jun 2023ATRA Atara BiotherapeuticsBiotechnologySEC FORM 4 Code A—57,000 at $0.00filing
23 Jun 2022filed 27 Jun 2022ATRA Atara Biotherapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—31,500 at $0.00filing
23 Jun 2022filed 27 Jun 2022ATRA Atara BiotherapeuticsBiotechnologySEC FORM 4 Code A—20,500 at $0.00filing
1 Feb 2022filed 12 Apr 2022RFL Rafael HoldingsBiotechnologySEC FORM 4 Code D—908,497 at $0.00filing
9 Aug 2021filed 10 Aug 2021ATRA Atara Biotherapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—55,000 at $0.00filing
27 May 2021filed 28 May 2021RFL Rafael HoldingsBiotechnologySEC FORM 4 Code A$40.6M908,497 at $44.70filing

News

Head to Head Survey: Kymera Therapeutics (NASDAQ:KYMR) versus ADC Therapeutics (NYSE:ADCT)ADCT · dailypolitical.com · 8 Oct 2026

0 headlines in the last 90 days name Ameet Mallik; 1 article from the last 14 days about the 1 company they traded most, at most three about any one of them.

Sectors

Health Care1

Buys in green, sells in red, by the company’s sector.

Related people

David PolinskyChief Financial Officer · Chief Financial Officer at Rafael Holdings, filing Form 4 there in the last year
Howard S. JonasDirector and 10% owner · Exec Chairman, CEO & President at Rafael Holdings, filing Form 4 there in the last year
Jose CarmonaChief Financial Officer · Chief Financial Officer at ADC Therapeutics SA, filing Form 4 there in the last year
Peter J. GrahamChief Legal Officer · Chief Legal Officer at ADC Therapeutics SA, filing Form 4 there in the last year
Mohamed ZakiChief Medical Officer · Chief Medical Officer at ADC Therapeutics SA, filing Form 4 there in the last year