Form4insider filings, from the source

Insider · CIK 0001438421

Stephen W Webster

Files at: NXTC, CGEM, ELOX, ONCE, VKTX, NBRV, NBRV. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $136k · 3sales $4.7M · 7net −$4.5M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesFeb 2015Aug 2015Mar 2016Oct 2016Apr 2017Nov 2017May 2018

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jan 18, 2019 FMForm 4 →Jan 23, 5:17 pm ESTSpark Therapeutics, Inc.ONCE5,013$45.08$56,9366,102— plan?
May 29, 2018 PForm 4 →May 31, 6:59 pm EDTViking Therapeutics, Inc.VKTX8,000$5.21$41,7128,000— plan?
May 23, 2018 PForm 4 →May 23, 8:37 pm EDTNabriva Therapeutics plcNBRV8,000$4.59$36,7208,000— plan?
Jan 18, 2018 FMForm 4 →Jan 22, 7:05 pm ESTSpark Therapeutics, Inc.ONCE2,385$50.55$32,0993,615— plan?
Nov 16, 2017 SForm 4 →Nov 20, 5:14 pm ESTSpark Therapeutics, Inc.ONCE10,000$70.14$701,4002,500−80.0% plan?
Nov 16, 2017 MForm 4 →Nov 20, 5:14 pm ESTSpark Therapeutics, Inc.ONCE10,000$3.45$34,50012,500— plan?
Aug 15, 2017 SForm 4 →Aug 15, 5:05 pm EDTSpark Therapeutics, Inc.ONCE10,000$79.38$793,8002,500−80.0% plan?
Aug 15, 2017 MForm 4 →Aug 15, 5:05 pm EDTSpark Therapeutics, Inc.ONCE10,000$3.45$34,50012,500— plan?
Jul 31, 2017 SForm 4 →Aug 2, 5:58 pm EDTSpark Therapeutics, Inc.ONCE2,337$71.12$166,2072,500−48.3% plan?
Jul 31, 2017 MForm 4 →Aug 2, 5:58 pm EDTSpark Therapeutics, Inc.ONCE2,337$3.45$8,0634,837— plan?
Jun 19, 2017 SForm 4 →Jun 21, 4:43 pm EDTSpark Therapeutics, Inc.ONCE7,663$60.00$459,7802,500−75.4% plan?
Jun 19, 2017 MForm 4 →Jun 21, 4:43 pm EDTSpark Therapeutics, Inc.ONCE7,663$3.45$26,43710,163— plan?
Apr 24, 2017 SForm 4 →Apr 26, 5:48 pm EDTSpark Therapeutics, Inc.ONCE10,000$55.18$551,7822,500−80.0% plan?
Apr 24, 2017 MForm 4 →Apr 26, 5:48 pm EDTSpark Therapeutics, Inc.ONCE10,000$3.45$34,50010,602— plan?
May 20, 2016 SForm 4 →May 24, 5:06 pm EDTSpark Therapeutics, Inc.ONCE20,000$50.39$1,007,8202,500−88.9% plan?
May 20, 2016 MForm 4 →May 24, 5:06 pm EDTSpark Therapeutics, Inc.ONCE20,000$3.45$69,00022,500— plan?
Oct 7, 2015 SForm 4 →Oct 9, 7:20 pm EDTSpark Therapeutics, Inc.ONCE20,000$48.86$977,2002,500−88.9% plan?
Oct 7, 2015 MForm 4 →Oct 9, 7:20 pm EDTSpark Therapeutics, Inc.ONCE20,000$3.45$69,00022,500— plan?
Feb 4, 2015 PForm 4 →Feb 6, 4:46 pm ESTSpark Therapeutics, Inc.ONCE2,500$23.00$57,5002,500— plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Jun 18, 2026 AForm 4 →Jun 22, 4:14 pm EDTNextCure, Inc.NXTC2,340——2,340—
Jun 16, 2026 AForm 4 →Jun 18, 5:00 pm EDTCullinan Therapeutics, Inc.CGEM25,319——25,319—
Jun 8, 2026 AForm 4 →Jun 10, 8:00 pm EDTEloxx Pharmaceuticals, Inc.ELOX13,587——13,587—
Jan 18, 2019 MForm 4 →Jan 23, 5:17 pm ESTSpark Therapeutics, Inc.ONCE3,750——6,000—
Jan 15, 2019 AForm 4 →Jan 17, 9:44 pm ESTSpark Therapeutics, Inc.ONCE45,000——10,000—
Jan 2, 2019 AForm 4 →Jan 3, 8:28 pm ESTViking Therapeutics, Inc.VKTX22,000——22,000—
May 2, 2018 AForm 4 →May 4, 4:01 pm EDTNabriva Therapeutics plcNBRV29,000——29,000—
Jan 18, 2018 AMForm 4 →Jan 22, 7:05 pm ESTSpark Therapeutics, Inc.ONCE37,750——5,250—
Jan 2, 2018 AForm 4 →Jan 3, 4:18 pm ESTViking Therapeutics, Inc.VKTX16,000——16,000—
Nov 16, 2017 MForm 4 →Nov 20, 5:14 pm ESTSpark Therapeutics, Inc.ONCE10,000——106,015—
Sep 15, 2017 AForm 4 →Sep 19, 9:31 pm EDTNabriva Therapeutics plcNBRV10,100——10,100—
Aug 15, 2017 MForm 4 →Aug 15, 5:05 pm EDTSpark Therapeutics, Inc.ONCE10,000——116,015—
Jul 31, 2017 MForm 4 →Aug 2, 5:58 pm EDTSpark Therapeutics, Inc.ONCE2,337——126,015—
Jun 23, 2017 JForm 4 →Jun 27, 9:56 pm EDTNabriva Therapeutics PlcNBRV30,300——10,100—
Jun 19, 2017 MForm 4 →Jun 21, 4:43 pm EDTSpark Therapeutics, Inc.ONCE7,663——128,352—
Apr 24, 2017 MForm 4 →Apr 26, 5:48 pm EDTSpark Therapeutics, Inc.ONCE10,000——136,015—
Jan 18, 2017 AForm 4 →Jan 20, 4:04 pm ESTSpark Therapeutics, Inc.ONCE32,000——7,000—
Jan 3, 2017 AForm 4 →Jan 5, 7:16 pm ESTViking Therapeutics, Inc.VKTX16,000——16,000—
May 20, 2016 MForm 4 →May 24, 5:06 pm EDTSpark Therapeutics, Inc.ONCE20,000——146,015—
Jan 5, 2016 AForm 4 →Jan 7, 6:57 pm ESTSpark Therapeutics, Inc.ONCE55,000——55,000—
Jan 4, 2016 AForm 4 →Jan 6, 2:16 pm ESTViking Therapeutics, Inc.VKTX16,000——16,000—
Oct 7, 2015 MForm 4 →Oct 9, 7:20 pm EDTSpark Therapeutics, Inc.ONCE20,000——166,015—
Apr 28, 2015 AForm 4 →Apr 30, 9:21 pm EDTViking Therapeutics, Inc.VKTX20,786——20,786—
Mar 16, 2015 AForm 4 →Mar 18, 5:01 pm EDTSpark Therapeutics, Inc.ONCE60,000——60,000—