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Who

Mark W. Frohlich

Director

Company insider

Files Form 4 as: Director, Rigel Pharmaceuticals; Officer, Juno Therapeutics; EVP, R&D and CMO, Dendreon.

Every Form 4 they filed

In numbers

Trades disclosed
128
Buys
1
Sells
21
Bought
$90K
Sold
$6.0M
Companies
3
Companies where not an officer
1
First trade
5 Dec 2007
Last trade
15 May 2026
Last filed
19 May 2026

Companies traded

Where they are an officer
Juno TherapeuticsOfficer · last 29 Feb 20160 buys · 1 sell
DendreonOfficer · last 21 Jan 20141 buy · 20 sells
Everywhere else they filed: board seats, 10% stakes, other companies
RIGL Rigel PharmaceuticalsDirector · Pharmaceuticals · last 15 May 20260 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
15 May 2026filed 19 May 2026RIGL Rigel PharmaceuticalsPharmaceuticalsSEC FORM 4 Code A—5,750 at $0.00filing
15 May 2026filed 19 May 2026RIGL Rigel PharmaceuticalsPharmaceuticalsSEC FORM 4 Code A—5,750 at $0.00filing
23 May 2025filed 28 May 2025RIGL Rigel Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code A—1,500 at $0.00filing
23 May 2025filed 28 May 2025RIGL Rigel PharmaceuticalsPharmaceuticalsSEC FORM 4 Code A—1,250 at $0.00filing
6 Mar 2025filed 10 Mar 2025RIGL Rigel Pharmaceuticalsoption or derivative · PharmaceuticalsSEC FORM 4 Code A—12,000 at $0.00filing
29 Feb 2016filed 2 Mar 2016Juno TherapeuticsSEC FORM 4 Sold$694K19,700 at $35.25filing
29 Feb 2016filed 2 Mar 2016Juno TherapeuticsSEC FORM 4 Sold$11K300 at $36.50filing
2 Feb 2016filed 4 Feb 2016Juno Therapeuticsoption or derivativeSEC FORM 4 Code A—55,000 at $0.00filing
3 Mar 2015filed 5 Mar 2015Juno Therapeuticsoption or derivativeSEC FORM 4 Code A—50,500 at $0.00filing
21 Jan 2014filed 22 Jan 2014DendreonSEC FORM 4 Code F$1,478459 at $3.22filing
20 Jan 2014filed 22 Jan 2014DendreonSEC FORM 4 Code F$1,364429 at $3.18filing
3 Jan 2014filed 7 Jan 2014DendreonSEC FORM 4 Code F$9,4253,060 at $3.08filing
3 Jan 2014filed 7 Jan 2014DendreonSEC FORM 4 Code F$24K7,713 at $3.08filing
3 Jan 2014filed 7 Jan 2014Dendreonoption or derivativeSEC FORM 4 Code A$616K200,000 at $3.08filing
21 Oct 2013filed 22 Oct 2013DendreonSEC FORM 4 Code F$922384 at $2.40filing
20 Oct 2013filed 22 Oct 2013DendreonSEC FORM 4 Code F$876359 at $2.44filing
3 Oct 2013filed 4 Oct 2013DendreonSEC FORM 4 Code F$7,2302,564 at $2.82filing
21 Jul 2013filed 23 Jul 2013DendreonSEC FORM 4 Code F$1,755384 at $4.57filing
20 Jul 2013filed 23 Jul 2013DendreonSEC FORM 4 Code F$1,641359 at $4.57filing
3 Jul 2013filed 8 Jul 2013DendreonSEC FORM 4 Code F$11K2,564 at $4.30filing

News

No headline names them, or the companies they trade most, lately.

Sectors

Not placed22

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

Related people

Nobody else traded the same names lately.