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Who

Georges Gemayel

Director

Company insider

Files Form 4 as: Executive Chair of the Board, Disc Medicine; Director, Supernus Pharmaceuticals; Director, Momenta Pharmaceuticals; Director, Dimension Therapeutics; Director, Raptor Pharmaceutical; Director, Nps Pharmaceuticals; Director, Adolor; President & CEO, Altus Pharmaceuticals.

In numbers

Trades disclosed
166
Buys
2
Sells
9
Bought
$339K
Sold
$7.1M
Companies
9
Companies where not an officer
6
First trade
28 Dec 2005
Last trade
18 Jun 2026
Last filed
23 Jun 2026

Companies traded

Where they are an officer
IRON Disc MedicineDirector, Officer · Biotechnology · last 18 Jun 20260 buys · 0 sells
Altus PharmaceuticalsDirector, Officer · last 19 Feb 20090 buys · 0 sells
GenzymeOfficer · last 30 Oct 20072 buys · 1 sell
Everywhere else they filed: board seats, 10% stakes, other companies
SUPN Supernus PharmaceuticalsDirector · Pharmaceuticals · last 6 Mar 20260 buys · 5 sells
Momenta PharmaceuticalsDirector · last 1 Oct 20200 buys · 2 sells
Dimension TherapeuticsDirector · last 7 Nov 20170 buys · 0 sells
Raptor PharmaceuticalDirector · last 25 Oct 20160 buys · 0 sells
Nps PharmaceuticalsDirector · last 21 Feb 20150 buys · 1 sell
AdolorDirector · last 7 Dec 20110 buys · 0 sells

Activity over time

1 Nov 2024 – 1 Oct 2026
20Nov 24May 25Nov 25Apr 26Oct 26

Buys above the line, sells below, each month.

Every trade

TradedCompanyWhatAmount
18 Jun 2026filed 23 Jun 2026IRON Disc Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—6,212 at $0.00filing
18 Jun 2026filed 23 Jun 2026IRON Disc Medicineoption or derivative · BiotechnologySEC FORM 4 Code A—6,212 at $0.00filing
6 Mar 2026filed 9 Mar 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$200K7,905 at $25.30filing
6 Mar 2026filed 9 Mar 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$466K8,787 at $53.00filing
6 Mar 2026filed 9 Mar 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—7,905 at $0.00filing
6 Mar 2026filed 9 Mar 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—7,905 at $0.00filing
6 Mar 2026filed 9 Mar 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$200K7,905 at $25.30filing
6 Mar 2026filed 9 Mar 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$466K8,787 at $53.00filing
5 Mar 2026filed 9 Mar 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$537K10,000 at $53.71filing
5 Mar 2026filed 9 Mar 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Sold$537K10,000 at $53.71filing
24 Feb 2026filed 25 Feb 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Code A—4,475 at $0.00filing
24 Feb 2026filed 25 Feb 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code D—4,475 at $0.00filing
24 Feb 2026filed 25 Feb 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code D—4,475 at $0.00filing
24 Feb 2026filed 25 Feb 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Code A—4,475 at $0.00filing
23 Feb 2026filed 25 Feb 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$195K15,000 at $12.98filing
23 Feb 2026filed 25 Feb 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—15,000 at $0.00filing
23 Feb 2026filed 25 Feb 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code M—15,000 at $0.00filing
23 Feb 2026filed 25 Feb 2026SUPN Supernus PharmaceuticalsPharmaceuticalsSEC FORM 4 Code M$195K15,000 at $12.98filing
18 Feb 2026filed 20 Feb 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code A—2,989 at $0.00filing
18 Feb 2026filed 20 Feb 2026SUPN Supernus Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code A—4,977 at $0.00filing

News

Sectors

Health Care5
Not placed6

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

Related people

John D. QuiselDirector · Chief Executive Officer at Disc Medicine, filing Form 4 there in the last year
Kevin BittermanDirector · Director at Disc Medicine, filing Form 4 there in the last year
Jonathan Yen-Wen YuChief Operating Officer · Chief Operating Officer at Disc Medicine, filing Form 4 there in the last year
Rahul KharaChief Legal Officer · Chief Legal Officer at Disc Medicine, filing Form 4 there in the last year
William Richard WhiteDirector · Director at Disc Medicine, filing Form 4 there in the last year
Donald J. TrumpPresident · Also traded SUPN in the last 90 days