Kristin Yarema

Insider

First SEC filing: March 3, 2022 · Latest: March 3, 2022

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 15 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

15 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
Aug. 14, 2026	IMA	A	254,800	—	—	493,705 Direct	+106.65%	Acquired	(price as of 2026-08-21)
Aug. 14, 2026	IMA	A	137,200	—	—	137,200 Direct	—	Acquired	(price as of 2026-08-21)
Aug. 14, 2026	IMA	A	250,000	—	—	250,000 Direct	—	Acquired	(price as of 2026-08-21)
July 25, 2026	IMA	J	115,129	—	—	0 Direct	-100.00%	Disposed	(price as of 2026-08-21)
July 25, 2026	IMA	M	38,376	—	—	115,129 Direct	-25.00%	Disposed	(price as of 2026-08-21)
July 25, 2026	IMA	J	115,129	—	—	238,905 Direct	+93.01%	Acquired	(price as of 2026-08-21)
July 25, 2026	IMA	M	38,376	—	—	123,776 Direct	+44.94%	Acquired	(price as of 2026-08-21)
July 28, 2025	IMA	A	460,515	—	—	460,515 Direct	—	Acquired	(price as of 2026-08-21)
July 28, 2025	IMA	A	153,505	—	—	153,505 Direct	—	Acquired	(price as of 2026-08-21)
March 1, 2022	ATRA	A	85,592	—	—	85,592 Direct	—	Acquired	(price as of 2026-08-21)
March 1, 2022	ATRA	A	45,533	—	—	171,415 Direct	+36.17%	Acquired	(price as of 2026-08-21)
May 18, 2021	ATRA	S 10b5-1	761	$14.55	$11,073	91,528 Direct	-0.82%	Disposed	-97.5% (price as of 2026-08-21)
March 1, 2021	ATRA	A	52,862	—	—	52,862 Direct	—	Acquired	(price as of 2026-08-21)
March 1, 2021	ATRA	A	35,021	—	—	92,289 Direct	+61.15%	Acquired	(price as of 2026-08-21)
March 1, 2020	ATRA	A	55,000	—	—	55,000 Direct	—	Acquired	(price as of 2026-08-21)
Feb. 18, 2020	ATRA	A	110,000	—	—	110,000 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.

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
Aug. 14, 2026	IMA	Employee Stock Option (right to buy)	Common Stock (137,200)	$5.84	Aug. 13, 2036	137,200	Acquired
Aug. 14, 2026	IMA	Employee Stock Option (Right to Buy)	Common Stock (250,000)	$5.84	Aug. 13, 2036	250,000	Acquired
July 25, 2026	IMA	Restricted Stock Units	Common Stock (115,129)	—	—	115,129	Disposed
July 25, 2026	IMA	Restricted Stock Units	Common Stock (38,376)	—	—	38,376	Disposed
July 28, 2025	IMA	Employee Stock Option (Right to Buy)	Common Stock (460,515)	$16.37	July 27, 2035	460,515	Acquired
July 28, 2025	IMA	Restricted Stock Units	Common Stock (153,505)	—	—	153,505	Acquired
March 1, 2022	ATRA	Employee Stock Option (Right to Buy)	Common Stock (85,592)	$10.21	Feb. 28, 2032	85,592	Acquired
March 1, 2021	ATRA	Employee Stock Option (Right to Buy)	Common Stock (52,862)	$17.10	Feb. 28, 2031	52,862	Acquired
Feb. 18, 2020	ATRA	Employee Stock Option (Right to Buy)	Common Stock (110,000)	$14.56	Feb. 17, 2030	110,000	Acquired

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

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

Fiscal year	Salary	Bonus	Stock awards	Option awards	Non-equity incentive	Pension change	Other	Total
2021	—	—	—	—	—	—	—	—
2020	$368,308	$147,995	—	$1,067,484	—	—	$184,370	$2,436,407

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