JEFFREY M LEIDEN

CIK 1242825 · Executive Chairman · last filed 2026-05-11

"Disclosed insider exposure" sums this person's most-recently-reported share counts across each company they're an insider in, multiplied by the current underlying price. It is not net worth — it misses retail holdings, private investments, real estate, index funds, and any company where the person isn't an SEC-reporting insider. For informational purposes only.

Disclosed Exposure

$16.90M

Companies

4

Total Filings

106

Lifetime Open-Market Net

-$544.74M

Holdings By Company

Latest on-record share count from this person's most recent non-derivative Form 4 transaction in each company. Disclosed exposure = shares × current underlying price.

Symbol	Role	Shares	Price	Disclosed Exposure	Lifetime OM Net	Filings	Latest Filed
ODTX	Director	298,896	—	—	$100.0K	1	2026-05-11
VRTX	Executive Chairman	35,237	$444.93	$15.68M	-$543.95M	88	2026-02-26
DGX	Director	6,000	$203.06	$1.22M	-$890.2K	15	2018-05-30
MILLENNIUM PHARMACEUTICALS INC (MLNM) Delisted	Director	—	—	—	$0	2	2008-05-15

Recent Filings · Page 11 of 11

106 filings

Form 4 transactions across all companies, newest first.

Filed	Symbol	Action	Net Shares	Net $	Link
2010-06-02	VRTX	Grant (A)	—	$0	EDGAR
2010-05-05	VRTX	Buy (P)	+1,300	$49.9K	EDGAR
2010-04-26	VRTX	Buy (P)	+1,300	$50.2K	EDGAR
2009-07-07	VRTX	Grant (A)	—	$0	EDGAR
2008-05-15	MILLENNIUM PHARMACEUTICALS INC (MLNM) Delisted	Disp (D)	—	$0	EDGAR
2007-10-04	MILLENNIUM PHARMACEUTICALS INC (MLNM) Delisted	Grant (A)	—	$0	EDGAR

Showing 101–106 of 106

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Codes: P = open-market purchase · S = open-market sale · A = grant/award · M = option exercise · F = tax withholding at vest · G = bona-fide gift · D = disposition to issuer · J = other (see filing footnote). Only P / S codes carry directional signal.