Bruce Wendel

Insider

First SEC filing: June 10, 2026 · Latest: June 10, 2026

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Insider at

0 buys (P) 0 sells (S) Net: $0 + 6 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 9, 2026	IBRX	A	65,600	—	—	65,600 Direct	—	Acquired	(price as of 2026-08-20)
Dec. 12, 2025	IBRX	A	146,020	—	—	146,020 Direct	—	Acquired	(price as of 2026-08-20)
June 16, 2020	VSTM	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 21, 2019	VSTM	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 13, 2017	VSTM	A	25,000	—	—	25,000 Direct	—	Acquired	(price as of 2026-08-20)
June 14, 2016	VSTM	A	50,000	—	—	50,000 Direct	—	Acquired	(price as of 2026-08-20)

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 9, 2026	IBRX	Stock Option (right to buy)	Common Stock (65,600)	$7.25	June 9, 2036	65,600	Acquired
Dec. 12, 2025	IBRX	Stock Option (right to buy)	Common Stock (146,020)	$2.36	Dec. 12, 2035	146,020	Acquired
June 16, 2020	VSTM	Stock Option (Right to Buy)	Common Stock (25,000)	$1.77	June 16, 2030	25,000	Acquired
June 21, 2019	VSTM	Stock Option (Right to Buy)	Common Stock (25,000)	$1.81	June 21, 2029	25,000	Acquired
June 13, 2017	VSTM	Stock Option (Right to Buy)	Common Stock (25,000)	$2.09	June 13, 2027	25,000	Acquired
June 14, 2016	VSTM	Stock Option (Right to Buy)	Common Stock (50,000)	$1.37	June 14, 2026	50,000	Acquired

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