RACHEL HUMPHREY

CIK 1579781 · Chief Medical Officer · last filed 2026-03-25

"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

$325.1K

Companies

3

Total Filings

16

Lifetime Open-Market Net

-$1.22M

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
PYXS	Director	95,405	$1.76	$167.9K	-$15.9K	6	2026-03-25
BDTX	Chief Medical Officer	10,000	$1.75	$17.5K	$0	2	2021-02-19
CTMX	Chief Medical Officer	46,394	$3.01	$139.6K	-$1.20M	8	2019-01-29

Recent Filings · Page 2 of 2

16 filings

Form 4 transactions across all companies, newest first.

Filed	Symbol	Action	Net Shares	Net $	Link
2018-03-02	CTMX	Mixed	—	-$557.5K	EDGAR
2018-01-26	CTMX	Grant (A)	—	$0	EDGAR
2017-12-19	CTMX	Exer (M)	+15,117	$100.0K	EDGAR
2017-01-27	CTMX	Grant (A)	—	$0	EDGAR
2016-12-29	CTMX	Exer (M)	+15,117	$100.0K	EDGAR
2016-01-25	CTMX	Grant (A)	—	$0	EDGAR

Showing 11–16 of 16

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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.