JOHN T HENDERSON

CIK 1226488 · last filed 2026-05-27

"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.

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Disclosed Exposure

$5.82M

Companies

3

Total Filings

99

Lifetime Open-Market Net

-$11.05M

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
CYTK Director 78,171 $70.15 $5.48M -$5.67M 72 2026-05-27
MYGN Director 78,090 $4.33 $338.1K -$5.38M 23 2019-12-06
Myrexis, Inc. (MYRX) Delisted Director 33,575 $0 4 2013-01-25

Recent Filings · Page 7 of 10

99 filings
Form 4 transactions across all companies, newest first.
Filed Symbol Action Net Shares Net $ Link
2017-05-22 CYTK Grant (A) $0 EDGAR
2017-02-23 MYGN Buy (P) +6,000 $111.9K EDGAR
2017-01-04 CYTK Grant (A) $0 EDGAR
2016-12-01 MYGN Grant (A) +15,024 $0 EDGAR
2016-09-13 MYGN Mixed -$296.8K EDGAR
2016-05-20 CYTK Grant (A) $0 EDGAR
2016-01-06 CYTK Grant (A) $0 EDGAR
2015-12-07 MYGN Grant (A) +7,500 $0 EDGAR
2015-05-21 CYTK Grant (A) $0 EDGAR
2015-01-05 CYTK Grant (A) $0 EDGAR
Showing 6170 of 99
Page 7 of 10
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.