Form4insider filings, from the source

Insider · CIK 0001184592

Beth C Seidenberg

Files at: LTGO, SGMT, TSRO, EPZM, ARMO, ATRA. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $50.0M · 1sales $0 · 0net $50.0M
$10k$10k$1M$1M$100M$100MbuyssalesMar 17Mar 17Mar 17Mar 18Mar 18Mar 18Mar 19

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 10, 2026 CForm 4 →Aug 10, 8:00 pm EDTLatigo Biotherapeutics, Inc.LTGO12,695,305——2,094,813—
Jan 22, 2019 UForm 4 →Jan 24, 5:30 pm ESTTESARO, Inc.TSRO2,222,164$75.00$166,662,3000— plan?
Jul 2, 2018 AForm 4 →Jul 2, 5:42 pm EDTEpizyme, Inc.EPZM3,247$13.55$43,9976,447— plan?
Jun 22, 2018 UForm 4 →Jun 22, 5:11 pm EDTARMO BioSciences, Inc.ARMO4,266,683$50.00$213,334,1500— plan?
Jun 14, 2018 AForm 4 →Jun 18, 7:21 pm EDTAtara Biotherapeutics, Inc.ATRA1,500——15,189— plan?
Jun 1, 2018 AForm 4 →Jun 5, 7:01 pm EDTTESARO, Inc.TSRO1,332——45,907— plan?
Jan 30, 2018 CForm 4 →Jan 30, 5:10 pm ESTARMO BioSciences, Inc.ARMO4,266,683——4,266,683— plan?
Dec 14, 2017 JForm 4 →Dec 15, 9:20 pm ESTTESARO, Inc.TSRO13,219——10,998— plan?
Sep 11, 2017 JForm 4 →Sep 11, 7:45 pm EDTTESARO, Inc.TSRO1,157,957——868— plan?
Jun 8, 2017 AForm 4 →Jun 12, 5:31 pm EDTAtara Biotherapeutics, Inc.ATRA5,000——13,689— plan?
Jun 1, 2017 AForm 4 →Jun 5, 6:16 pm EDTTESARO, Inc.TSRO402——22,059— plan?
Jan 3, 2017 AForm 4 →Jan 5, 5:49 pm ESTAtara Biotherapeutics, Inc.ATRA2,000——8,689— plan?
Jul 1, 2016 AForm 4 →Jul 6, 4:58 pm EDTEpizyme, Inc.EPZM3,200$10.33$33,0563,200— plan?
Jun 1, 2016 AForm 4 →Jun 3, 2:31 pm EDTTESARO, Inc.TSRO1,269——21,657— plan?
Mar 18, 2016 PForm 4 →Mar 18, 4:30 pm EDTTESARO, Inc.TSRO1,420,858$35.19$49,999,993227,255— plan?
Dec 16, 2015 JForm 4 →Feb 17, 2016, 6:51 pm ESTTESARO, Inc.TSRO8,967——20,388— plan? late
Dec 16, 2015 JForm 4 →Dec 17, 5:05 pm ESTAtara Biotherapeutics, Inc.ATRA7,712——6,689— plan?
Sep 17, 2015 JForm 4 →Sep 21, 8:15 pm EDTAtara Biotherapeutics, Inc.ATRA395,839——197— plan?
Sep 17, 2015 JForm 4 →Sep 21, 6:40 pm EDTTESARO, Inc.TSRO295,320——116,428— plan?
Jun 1, 2015 AForm 4 →Jun 3, 5:27 pm EDTTESARO, Inc.TSRO946——16,511— plan?
May 19, 2015 JForm 4 →May 21, 6:49 pm EDTAtara Biotherapeutics, Inc.ATRA300,000——63,122— plan?
May 14, 2015 JForm 4 →May 18, 2:19 pm EDTAtara Biotherapeutics, Inc.ATRA266,022——71,822— plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Aug 10, 2026 CForm 4 →Aug 10, 8:00 pm EDTLatigo Biotherapeutics, Inc.LTGO12,695,305——0—
Jun 12, 2026 AForm 4 →Jun 15, 4:23 pm EDTSagimet Biosciences Inc.SGMT39,567——39,567—
Jan 22, 2019 DForm 4 →Jan 24, 5:30 pm ESTTESARO, Inc.TSRO65,261——0—
Jun 22, 2018 DForm 4 →Jun 22, 5:11 pm EDTARMO BioSciences, Inc.ARMO18,000$10.03$180,5400—
Jun 14, 2018 AForm 4 →Jun 18, 7:21 pm EDTAtara Biotherapeutics, Inc.ATRA5,000——5,000—
Jun 1, 2018 AForm 4 →Jun 5, 7:01 pm EDTTESARO, Inc.TSRO11,261——4,052—
May 18, 2018 AForm 4 →May 31, 4:26 pm EDTEpizyme, Inc.EPZM12,500——12,500— late
Mar 26, 2018 AForm 4 →Mar 28, 4:55 pm EDTARMO BioSciences, Inc.ARMO18,000——18,000—
Jan 30, 2018 CForm 4 →Jan 30, 5:10 pm ESTARMO BioSciences, Inc.ARMO4,266,683——0—
Jun 22, 2017 AForm 4 →Jun 26, 1:53 pm EDTEpizyme, Inc.EPZM12,500——12,500—
Jun 8, 2017 AForm 4 →Jun 12, 5:31 pm EDTAtara Biotherapeutics, Inc.ATRA21,500——21,500—
Jun 1, 2017 AForm 4 →Jun 5, 6:16 pm EDTTESARO, Inc.TSRO12,000——12,000—
Jan 3, 2017 AForm 4 →Jan 5, 5:49 pm ESTAtara Biotherapeutics, Inc.ATRA5,500——5,500—
Jun 1, 2016 AForm 4 →Jun 3, 2:31 pm EDTTESARO, Inc.TSRO12,000——12,000—
May 19, 2016 AForm 4 →May 23, 4:30 pm EDTEpizyme, Inc.EPZM12,500——12,500—
Jan 4, 2016 AForm 4 →Jan 5, 6:42 pm ESTAtara Biotherapeutics, Inc.ATRA10,500——10,500—
Jul 8, 2015 AForm 4 →Jul 10, 6:55 pm EDTEpizyme, Inc.EPZM7,333——7,333—
Jun 1, 2015 AForm 4 →Jun 3, 5:27 pm EDTTESARO, Inc.TSRO10,000——10,000—
Jan 16, 2015 AForm 4 →Jan 21, 4:34 pm ESTAtara Biotherapeutics, Inc.ATRA25,000——25,000—