Owen Hughes

Insider

First SEC filing: Jan. 7, 2021 · Latest: Jan. 7, 2021

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Insider at Companies where this person is a reporting insider.
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.
Compensation Executive pay disclosed in company proxy statements.

Insider at

Insider transactions

1 buys (P) 0 sells (S) Net: $2,505,000 + 25 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

25 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
July 14, 2026	XOMAP	D	132,714	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	116,245	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	75,000	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	100,000	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	D	102,000	—	—	0 Direct	-100.00%	Disposed
July 14, 2026	XOMAP	J	752	—	—	0 Indirect	-100.00%	Disposed
July 14, 2026	XOMAP	J	191,264	—	—	0 Direct	-100.00%	Disposed
June 24, 2026	CCCC	A	62,000	—	—	62,000 Direct	—	Acquired	(price as of 2026-08-21)
April 20, 2026	XOMA	M	10,568	—	—	116,245 Direct	-8.33%	Disposed
April 20, 2026	XOMA	M	10,568	—	—	191,264 Direct	+5.85%	Acquired
March 16, 2026	XOMA	A	126,813	—	—	126,813 Direct	—	Acquired
March 16, 2026	XOMA	A	82,428	—	—	180,696 Direct	+83.88%	Acquired
Dec. 4, 2025	XOMA	P	100,000	$25.05	$2,505,000	102,000 Direct	+5000.00%	Acquired
Sept. 19, 2025	XOMA	M	35,567	—	—	132,714 Direct	-21.14%	Disposed
Sept. 19, 2025	XOMA	M	35,567	—	—	98,268 Direct	+56.72%	Acquired
May 20, 2025	XOMA	S	25,637	$25.38	$650,667	62,701 Direct	-29.02%	Disposed
May 19, 2025	XOMA	M	53,359	—	—	168,281 Direct	-24.07%	Disposed
May 19, 2025	XOMA	M	53,359	—	—	88,338 Direct	+152.55%	Acquired
Nov. 13, 2024	XOMA	S	21,881	$29.95	$655,336	34,979 Direct	-38.48%	Disposed
Nov. 11, 2024	XOMA	M	53,360	—	—	221,640 Direct	-19.40%	Disposed
Nov. 11, 2024	XOMA	M	53,360	—	—	56,860 Direct	+1524.57%	Acquired
June 7, 2024	IMA	A	17,520	—	—	17,520 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 8, 2024	XOMA	A	275,000	—	—	275,000 Direct	—	Acquired
Oct. 2, 2023	XOMA	P	1,000	$13.83	$13,830	3,500 Direct	+40.00%	Acquired
Sept. 26, 2023	XOMA	P	2,499	$14.43	$36,061	2,500 Direct	+249900.00%	Acquired
Sept. 25, 2023	XOMA	P	1	$14.65	$15	1 Direct	—	Acquired
June 9, 2023	IMA	A	17,520	—	—	17,520 Direct	—	Acquired	(price as of 2026-08-21)
May 24, 2023	XOMA	P	1,032	$23.79	$24,551	2,000 Direct	+106.61%	Acquired
May 23, 2023	XOMA	P	768	$23.49	$18,040	968 Direct	+384.00%	Acquired
May 23, 2023	XOMA	P	200	$23.33	$4,666	200 Direct	—	Acquired
Jan. 3, 2023	XOMA	A	75,000	—	—	75,000 Direct	—	Acquired
Jan. 3, 2023	XOMA	A	100,000	—	—	100,000 Direct	—	Acquired
Dec. 15, 2022	IMA	A	35,040	—	—	35,040 Direct	—	Acquired	(price as of 2026-08-21)
Jan. 12, 2021	CGEM	P	2,500	$21.00	$52,500	506,226 Direct	+0.50%	Acquired	3.6% (price as of 2026-08-21)
Jan. 7, 2021	CGEM	A	433,332	—	—	433,332 Direct	—	Acquired	(price as of 2026-08-21)

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	Performance Stock Units	Common Stock (132,714)	—	May 18, 2026	132,714	Disposed
July 14, 2026	XOMAP	Performance Stock Units	Common Stock (116,245)	—	March 11, 2029	116,245	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (75,000)	$30.00	Jan. 3, 2033	75,000	Disposed
July 14, 2026	XOMAP	Stock Option (Right to Buy)	Common Stock (100,000)	$18.66	Jan. 3, 2033	100,000	Disposed
June 24, 2026	CCCC	Stock Option (Right to Buy)	Common Stock (62,000)	$4.25	June 23, 2036	62,000	Acquired
April 20, 2026	XOMA	Performance Stock Units	Common Stock (10,568)	—	March 11, 2029	10,568	Disposed
March 16, 2026	XOMA	Performance Stock Units	Common Stock (126,813)	—	—	126,813	Acquired
Sept. 19, 2025	XOMA	Performance Stock Units	Common Stock (35,567)	—	May 18, 2026	35,567	Disposed
May 19, 2025	XOMA	Performance Stock Units	Common Stock (53,359)	—	May 18, 2026	53,359	Disposed
Nov. 11, 2024	XOMA	Performance Stock Units	Common Stock (53,360)	—	May 18, 2026	53,360	Disposed
June 7, 2024	IMA	Stock Option (Right to Buy)	Common Stock (17,520)	$1.75	June 6, 2034	17,520	Acquired
Jan. 8, 2024	XOMA	Performance Stock Units	Common Stock (275,000)	—	May 18, 2026	275,000	Acquired
June 9, 2023	IMA	Stock Option (Right to Buy)	Common Stock (17,520)	$6.51	June 9, 2033	17,520	Acquired
Jan. 3, 2023	XOMA	Employee Stock Option (right to buy)	Common Stock (75,000)	$30.00	Jan. 3, 2033	75,000	Acquired
Jan. 3, 2023	XOMA	Employee Stock Option (right to buy)	Common Stock (100,000)	$18.66	Jan. 3, 2033	100,000	Acquired
Dec. 15, 2022	IMA	Stock Option (Right to Buy)	Common Stock (35,040)	$2.62	Dec. 15, 2032	35,040	Acquired
Jan. 7, 2021	CGEM	Stock Option (Right to Buy)	Common Stock (433,332)	$21.00	Jan. 6, 2031	433,332	Acquired

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

Initial ownership (Form 3) 3 holdings

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

Date	Ticker	Security	Shares	Ownership
Jan. 7, 2021	CGEM	Common Stock	503,726	Direct
Jan. 7, 2021	CGEM	Stock Option (Right to Buy)→ Common Stock (408,898)	408,898	Direct
Jan. 7, 2021	CGEM	Stock Option (Right to Buy)→ Common Stock (452,954)	452,954	Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CIK 791908

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2025	$707,940	—	—	—	$420,517	—	$11,750	$1,140,207
2024	$566,477	$89,375	$4,833,138	—	$336,488	—	$7,786	$5,833,264
2023	$125,000	—	—	—	$68,750	—	—	$2,482,735

CGEM

President & CEO

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2021	$433,279	$216,507	—	—	—	—	$130,419	$6,786,187
2020	$461,250	$245,063	—	—	—	—	$14,250	$6,552,058

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.