Perceptive Advisors LLC

Insider Activist

First SEC filing: March 31, 2009 · Latest: May 7, 2026

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Institution

0 buys (P) 0 sells (S) Net: $0 + 5 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

5 other filings hidden

Date	Ticker	Code	Shares	Price	Value	Owned after	Δ own	A/D	vs now
June 16, 2026	IMTX	A	48,000	—	—	48,000 Indirect	—	Acquired	(price as of 2026-08-20)
March 6, 2009	1224962	J	274,362	$1.26	$345,696	6,476,446 Indirect	-4.06%	Disposed
Feb. 25, 2009	1224962	U	2,221,248	$4.50	$9,995,616	7,891,067 Indirect	-21.97%	Disposed
Feb. 20, 2009	1224962	P	25,000	$5.48	$137,000	10,112,315 Indirect	+0.25%	Acquired
Feb. 20, 2009	1224962	P	225,000	$5.48	$1,233,000	10,087,315 Indirect	+2.28%	Acquired
Feb. 19, 2009	1224962	P	7,500	$5.55	$41,625	9,862,315 Indirect	+0.08%	Acquired
Feb. 19, 2009	1224962	P	675,000	$5.55	$3,746,250	9,787,315 Indirect	+7.41%	Acquired
Jan. 30, 2009	1224962	J	2,300	$1.75	$4,025	6,750,808 Indirect	-0.03%	Disposed
Jan. 16, 2009	1224962	P	23,900	$5.00	$119,500	6,753,108 Indirect	+0.36%	Acquired
Jan. 6, 2009	1224962	P	25,000	$5.00	$125,000	6,729,208 Indirect	+0.37%	Acquired
Dec. 29, 2008	1224962	P	2,300	$5.00	$11,500	6,704,208 Indirect	+0.03%	Acquired
Dec. 29, 2008	1224962	P	4,700	$5.00	$23,500	6,701,908 Indirect	+0.07%	Acquired
Dec. 24, 2008	1224962	J	274,362	$1.26	$345,696	6,697,208 Indirect	+4.27%	Acquired
March 11, 2008	1224962	P	925,000	—	—	925,000 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.

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

Date	Ticker	Security	Underlying	Exercise price	Expiration	Shares	A/D
June 16, 2026	IMTX	Stock Option (Right to Buy)	Ordinary Shares (48,000)	$9.09	June 15, 2036	48,000	Acquired
March 11, 2008	1224962	Warrant [F1]	Common Stock (925,000)	—	March 11, 2013	925,000	Acquired

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