Matthew D. Perry

Activist

First SEC filing: Aug. 18, 2025 · Latest: Aug. 18, 2025

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Insider transactions Every share this person bought or sold, from Form 4 filings.
Derivatives Options and other derivative holdings reported by this person.
Initial holdings The stakes this person held when they first started reporting.

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 19 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

19 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D
July 14, 2026	XOMAP	D	10,967	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	8,996	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	5,101	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	6,152	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	8,167	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	5,052	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	15,222	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	J	24,138	—	—	0 Direct	-100.00%	Disposed
May 21, 2026	XOMA	A	3,586	—	—	27,426 Direct	+15.04%	Acquired
May 21, 2025	XOMA	A	5,971	—	—	23,840 Direct	+33.42%	Acquired
May 15, 2024	XOMA	A	6,070	—	—	17,869 Direct	+51.45%	Acquired
May 17, 2023	XOMA	A	10,967	—	—	10,967 Direct	—	Acquired
May 18, 2022	XOMA	A	8,996	—	—	8,996 Direct	—	Acquired
May 19, 2021	XOMA	A	5,101	—	—	5,101 Direct	—	Acquired
Dec. 11, 2020	XOMA	P	200,000	$25.00	$5,000,000	200,000 Direct	—	Acquired
May 20, 2020	XOMA	A	6,152	—	—	6,152 Direct	—	Acquired
May 16, 2019	XOMA	A	8,167	—	—	8,167 Direct	—	Acquired
May 17, 2018	XOMA	A	5,052	—	—	5,052 Direct	—	Acquired
March 2, 2017	XOMA	A	15,222	—	—	15,222 Direct	—	Acquired
March 2, 2017	XOMA	A	11,799	—	—	11,799 Direct	—	Acquired

P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding

Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.

Derivative holdings (Form 4 Table II)

Options, RSUs and convertible securities reported on Form 4 Table II.

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (10,967)	$21.39	May 17, 2033	10,967	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (8,996)	$17.86	May 18, 2032	8,996	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (5,101)	$31.04	May 19, 2031	5,101	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (6,152)	$21.27	May 20, 2030	6,152	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (8,167)	$15.59	May 16, 2029	8,167	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (5,052)	$25.16	May 17, 2028	5,052	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (15,222)	$4.67	March 2, 2027	15,222	Disposed
May 17, 2023	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (10,967)	$21.39	May 17, 2033	10,967	Acquired
May 18, 2022	XOMA	Non-Qualified Share Option (right to buy)	Common Shares (8,996)	$17.86	May 18, 2032	8,996	Acquired
May 19, 2021	XOMA	Non-Qualified Stock Option (right to buy)	Common Stock (5,101)	$31.04	May 19, 2031	5,101	Acquired
May 20, 2020	XOMA	Non-Qualified Stock Option (right to buy)	Common Stock (6,152)	$21.27	May 20, 2030	6,152	Acquired
May 16, 2019	XOMA	Non-Qualified Stock Option (right to buy)	Common Stock (8,167)	$15.59	May 16, 2029	8,167	Acquired
May 17, 2018	XOMA	Non-Qualified Stock Option (right to buy)	Common Stock (5,052)	$25.16	May 17, 2028	5,052	Acquired
March 2, 2017	XOMA	Non-Qualified Stock Option (right to buy)	Common Stock, $0.0075 par value per share (15,222)	$4.67	March 2, 2027	15,222	Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 1 holding

Securities held when first becoming an insider, per SEC Form 3.

Date	Ticker	Security	Shares	Ownership
Feb. 21, 2017	XOMA	Common Stock, $0.0075 par value per share [F1]	0	Indirect