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Who

Mary Ann Gray

Director

Company insider

Files Form 4 as: Director, Keros Therapeutics; Director, RAPT Therapeutics; Director, Compass Therapeutics; Director, BioAtla; Director, Palisade Bio; Director, Sarepta Therapeutics; Director, Senomyx; Director, Juniper Pharmaceuticals.

In numbers

Trades disclosed
192
Buys
3
Sells
3
Bought
$48K
Sold
$848K
Companies
14
Companies where not an officer
14
First trade
17 May 2006
Last trade
3 Jun 2026
Last filed
5 Jun 2026

Companies traded

Everywhere else they filed: board seats, 10% stakes, other companies
KROS Keros TherapeuticsDirector · Biotechnology · last 3 Jun 20260 buys · 0 sells
RAPT TherapeuticsDirector · Biotechnology · last 3 Mar 20260 buys · 0 sells
CMPX Compass TherapeuticsDirector · Biotechnology · last 2 Jan 20260 buys · 0 sells
BioAtlaDirector · Biotechnology · last 18 Jun 20250 buys · 0 sells
PALI Palisade BioDirector · Biotechnology · last 21 Nov 20230 buys · 0 sells
SRPT Sarepta TherapeuticsDirector · Biotechnology · last 7 Mar 20220 buys · 0 sells
SenomyxDirector · last 2 Nov 20181 buy · 0 sells
Juniper PharmaceuticalsDirector · last 14 Aug 20180 buys · 0 sells
SLS SELLAS Life Sciences GroupDirector · Biotechnology · last 10 Oct 20170 buys · 0 sells
ACAD ACADIA PharmaceuticalsDirector · Pharmaceuticals · last 7 Jun 20160 buys · 3 sells
DyaxDirector, Other · last 22 Jan 20161 buy · 0 sells
Tetralogic PharmaceuticalsDirector · last 28 Jan 20150 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
101Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
3 Jun 2026filed 5 Jun 2026KROS Keros TherapeuticsBiotechnologySEC FORM 4 Code A—7,142 at $0.00filing
3 Jun 2026filed 5 Jun 2026KROS Keros Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—7,433 at $0.00filing
3 Jun 2026filed 5 Jun 2026KROS Keros Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code A—7,433 at $0.00filing
3 Jun 2026filed 5 Jun 2026KROS Keros TherapeuticsBiotechnologySEC FORM 4 Code A—7,142 at $0.00filing
3 Mar 2026filed 5 Mar 2026RAPT TherapeuticsBiotechnologySEC FORM 4 Code U—4,956filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—1,618filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—1,072filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—4,561filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—7,650filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—32,229filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—2,813filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivative · BiotechnologySEC FORM 4 Code D—498filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—2,813filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—498filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—938filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—478filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—938filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—484filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—1,063filing
3 Mar 2026filed 5 Mar 2026RAPT Therapeuticsoption or derivativeSEC FORM 4 Code D—560filing

Sectors

Health Care3
Not placed3

Buys in green, sells in red, by the company’s sector.

Related people

Neil LernerChief Accounting Officer · Chief Accounting Officer at Compass Therapeutics, filing Form 4 there in the last year
Lorena Raquel LernerChief Scientific Officer · Chief Scientific Officer at Keros Therapeutics, filing Form 4 there in the last year
Charles W. NewtonDirector · Director at Keros Therapeutics, filing Form 4 there in the last year
Annita TaniniCorp. Controller & VP, Finance · Corp. Controller & VP, Finance at Keros Therapeutics, filing Form 4 there in the last year
Esther ChoChief Legal Officer · Chief Legal Officer at Keros Therapeutics, filing Form 4 there in the last year
Mark C. SchneyerEVP, Chief Financial Officer · Also traded ACAD in the last 90 days
Elizabeth H.Z. ThompsonEVP, Head of Research & Dev · Also traded ACAD in the last 90 days
Donald J. TrumpPresident · Also traded ACAD in the last 90 days