Otello Stampacchia

Insider

First SEC filing: March 25, 2021 · Latest: March 25, 2021

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 10 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

No open-market trades on record; showing all filings.

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 16, 2026	IMA	A	15,600	—	—	15,600 Direct	—	Acquired	(price as of 2026-08-21)
June 7, 2024	IMA	A	17,520	—	—	17,520 Direct	—	Acquired	(price as of 2026-08-21)
June 9, 2023	IMA	A	17,520	—	—	17,520 Direct	—	Acquired	(price as of 2026-08-21)
June 9, 2022	IMA	A	13,419	—	—	13,419 Direct	—	Acquired	(price as of 2026-08-21)
Dec. 21, 2021	IMA	A	13,419	—	—	13,419 Direct	—	Acquired	(price as of 2026-08-21)
March 30, 2021	IMA	C	12,870,933	—	—	0 Indirect	-100.00%	Disposed	(price as of 2026-08-21)
March 30, 2021	IMA	A	450,000	$16.00	$7,200,000	2,249,123 Indirect	+25.01%	Acquired	-97.0% (price as of 2026-08-21)
March 30, 2021	IMA	C	1,799,123	—	—	1,799,123 Indirect	—	Acquired	(price as of 2026-08-21)
Dec. 21, 2020	IMA	A	12,870,933	$1.40	$18,019,306	12,870,933 Indirect	—	Acquired	-65.3% (price as of 2026-08-21)
June 10, 2019	GOSS	A	23,500	—	—	23,500 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
June 16, 2026	IMA	Stock Option (right to buy)	Common Stock (15,600)	$5.45	June 16, 2036	15,600	Acquired
June 7, 2024	IMA	Stock Option (Right to Buy)	Common Stock (17,520)	$1.75	June 6, 2034	17,520	Acquired
June 9, 2023	IMA	Stock Option (Right to Buy)	Common Stock (17,520)	$6.51	June 9, 2033	17,520	Acquired
June 9, 2022	IMA	Stock Option (Right to Buy)	Common Stock (13,419)	$4.85	June 9, 2032	13,419	Acquired
Dec. 21, 2021	IMA	Stock Option (Right to Buy)	Common Stock (13,419)	$14.92	Dec. 21, 2031	13,419	Acquired
March 30, 2021	IMA	Series B Preferred Stock	Common Stock (1,799,123)	—	—	12,870,933	Disposed
Dec. 21, 2020	IMA	Series B Preferred Stock	Common Stock (1,799,123)	—	—	12,870,933	Acquired
June 10, 2019	GOSS	Stock Option (right to buy)	Common Stock (23,500)	$19.54	June 9, 2029	23,500	Acquired

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

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

Date	Ticker	Security	Shares	Ownership
March 25, 2021	IMA	Series B Preferred Stock→ Common Stock (1,799,123)	1,799,123	Indirect