Sean A. McCarthy - Aug 11, 2021 Form 4 Insider Report for CytomX Therapeutics, Inc. (CTMX)

Signature
/s/ Lloyd Rowland, as Attorney-in-Fact for Sean A. McCarthy
Stock symbol
CTMX
Transactions as of
Aug 11, 2021
Transactions value $
$104,447
Form type
4
Date filed
8/13/2021, 05:22 PM
Previous filing
Jun 21, 2021
Next filing
Oct 26, 2021

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction CTMX Common Stock Options Exercise $104K +92.1K +1179.57% $1.13 99.9K Aug 11, 2021 Direct F1
holding CTMX Common Stock 93.2K Aug 11, 2021 See footnote F1, F2

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
transaction CTMX Stock Option (Right to Buy) Options Exercise $0 -92.1K -100% $0.00* 0 Aug 11, 2021 Common Stock 92.1K $1.13 Direct F3, F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Amount of securities held has been adjusted to reflect the transfer of 40 shares previously owned directly to Sean A. McCarthy 2018 Trust.
F2 Shares held by Sean A. McCarthy 2018 Trust, of which Reporting Person is trustee.
F3 Exercise of September 2021 expiring stock options with cash.
F4 100% of the shares subject to the option are fully vested and exercisable.