Ron Squarer - 02 Jan 2024 Form 3/A - Amendment Insider Report for ADC Therapeutics SA (ADCT)

Role
Director
Signature
/s/ Ameet Mallik, as Attorney-in-Fact for Ron Squarer
Issuer symbol
ADCT
Transactions as of
02 Jan 2024
Transactions value $
$0
Form type
3/A - Amendment
Filing time
05 Jun 2025, 16:06:31 UTC
Date Of Original Report
02 Jan 2024
Previous filing
23 Jun 2023
Next filing
18 Jan 2024

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Squarer Ron Director 430 MOUNTAIN AVENUE, SUITE 404, NEW PROVIDENCE /s/ Ameet Mallik, as Attorney-in-Fact for Ron Squarer 05 Jun 2025 0001454001

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding ADCT Common Shares 35.8K 02 Jan 2024 Direct F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Underlying Class Amount Exercise Price Ownership Footnotes
holding ADCT Stock Options (Right to Buy) 02 Jan 2024 Common Shares 967K $18.75 Direct F2
holding ADCT Stock Options (Right to Buy) 02 Jan 2024 Common Shares 27.4K $28.70 Direct F3
holding ADCT Stock Options (Right to Buy) 02 Jan 2024 Common Shares 29.8K $14.00 Direct F4
holding ADCT Stock Options (Right to Buy) 02 Jan 2024 Common Shares 159K $18.75 By grantor retained annuity trust F5
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 On January 2, 2024, a Form 3 was filed on behalf of the Reporting Person which inadvertently overstated the number of securities reported in Column 2 of Table I by 11,852 shares due to an administrative error. This Form 3 amendment is being filed to correct the aggregate number of shares beneficially owned by the Reporting Person as of the original transaction date and also applies to the number of shares reported as beneficially owned by the Reporting Person on any Forms 4 filed since January 2, 2024.
F2 On January 2, 2024, a Form 3 was filed on behalf of the Reporting Person which inadvertently underreported the number of securities reported in Column 3 of Table II by 468,977 shares due to an administrative error. This Form 3 amendment is being filed to correct the aggregate number of shares beneficially owned by the Reporting Person as of the original transaction date and also applies to the number of shares reported as beneficially owned by the Reporting Person on any Forms 4 filed since January 2, 2024.
F3 On January 2, 2024, a Form 3 was filed on behalf of the Reporting Person which inadvertently overstated the number of securities reported in Column 3 of Table II by 16,447 shares due to an administrative error. These options are fully vested and exercisable. This Form 3 amendment is being filed to correct the aggregate number of shares beneficially owned by the Reporting Person as of the original transaction date and also applies to the number of shares reported as beneficially owned by the Reporting Person on any Forms 4 filed since January 2, 2024.
F4 On January 2, 2024, a Form 3 was filed on behalf of the Reporting Person which inadvertently overstated the number of securities reported in Column 3 of Table II by 45,539 shares due to an administrative error. These options are fully vested and exercisable. This Form 3 amendment is being filed to correct the aggregate number of shares beneficially owned by the Reporting Person as of the original transaction date and also applies to the number of shares reported as beneficially owned by the Reporting Person on any Forms 4 filed since January 2, 2024.
F5 Due to an administrative error, the previous Form 3 filing inadvertently overstated the number of options contributed to a grantor annuity trust for the benefit of the Ron Squarer 2014 Irrevocable Life Insurance Trust by 309,951 options. The correct number of options contributed to the grantor annuity trust for the benefit of the Ron Squarer 2014 Irrevocable Life Insurance Trust is reflected in this filing.