Form4insider filings, from the source

Insider · CIK 0001227886

Robert Chess

Files at: NKTR, TWST. On EDGAR ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market buys & salesbuys $0 · 0sales $8.3M · 14net −$8.3M
$10k$10k$100k$100k$1M$1M$10M$10MbuyssalesJun 2015Apr 2017Mar 2019Jan 2021Nov 2022Sep 2024Aug 2026

Reported trades — common stock

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 23, 2026 AForm 4 →Sep 25, 8:22 pm EDTNEKTAR THERAPEUTICSNKTR2,000——19,019—
Aug 7, 2026 SForm 4 →Aug 11, 4:05 pm EDTTwist Bioscience CorpTWST18,417$110.89$2,042,26121,084−46.6%10b5-1
Aug 7, 2026 MForm 4 →Aug 11, 4:05 pm EDTTwist Bioscience CorpTWST18,417$11.89$218,97839,501—10b5-1
Sep 27, 2018 AForm 4 →Oct 1, 8:21 pm EDTNEKTAR THERAPEUTICSNKTR4,750——274,473— plan?
Sep 19, 2018 SForm 4 →Sep 21, 7:31 pm EDTNEKTAR THERAPEUTICSNKTR4,500$56.81$255,645269,723−1.64% plan?
Jun 5, 2018 SForm 4 →Jun 7, 7:39 pm EDTNEKTAR THERAPEUTICSNKTR10,000$55.16$551,600274,223−3.52% plan?
Jun 5, 2018 MForm 4 →Jun 7, 7:39 pm EDTNEKTAR THERAPEUTICSNKTR10,000$14.26$142,600284,223— plan?
May 3, 2018 SForm 4 →May 4, 6:55 pm EDTNEKTAR THERAPEUTICSNKTR25,000$82.80$2,070,050274,223−8.35% plan?
May 3, 2018 MForm 4 →May 4, 6:55 pm EDTNEKTAR THERAPEUTICSNKTR25,000$8.79$219,700289,223— plan?
Apr 6, 2018 SForm 4 →Apr 9, 8:20 pm EDTNEKTAR THERAPEUTICSNKTR25,000$92.14$2,303,600274,223−8.35% plan?
Apr 6, 2018 MForm 4 →Apr 9, 8:20 pm EDTNEKTAR THERAPEUTICSNKTR25,000$8.79$219,700289,223— plan?
Sep 21, 2017 SForm 4 →Sep 25, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR6,400$21.72$139,008274,223−2.28% plan?
Sep 19, 2017 AForm 4 →Sep 21, 4:40 pm EDTNEKTAR THERAPEUTICSNKTR9,000——280,623— plan?
May 15, 2017 SForm 4 →May 17, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR5,000$19.79$98,950271,623−1.81% plan?
May 15, 2017 MForm 4 →May 17, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR5,000$8.37$41,850276,623— plan?
Apr 17, 2017 SForm 4 →Apr 19, 7:30 pm EDTNEKTAR THERAPEUTICSNKTR5,000$18.72$93,600271,623−1.81% plan?
Apr 17, 2017 MForm 4 →Apr 19, 7:30 pm EDTNEKTAR THERAPEUTICSNKTR5,000$8.37$41,850276,623— plan?
Mar 14, 2017 SForm 4 →Mar 16, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR5,000$15.41$77,050271,623−1.81% plan?
Mar 14, 2017 MForm 4 →Mar 16, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR5,000$8.37$41,850276,623— plan?
Sep 21, 2016 AForm 4 →Sep 23, 5:09 pm EDTNEKTAR THERAPEUTICSNKTR8,000——271,623— plan?
Sep 15, 2016 MForm 4 →Sep 19, 5:13 pm EDTNEKTAR THERAPEUTICSNKTR15,000——263,623— plan?
Sep 15, 2016 SForm 4 →Sep 19, 5:13 pm EDTNEKTAR THERAPEUTICSNKTR12,000$19.21$230,520248,623−4.60% plan?
Aug 1, 2016 SForm 4 →Aug 3, 7:01 pm EDTNEKTAR THERAPEUTICSNKTR5,000$17.26$86,300260,623−1.88% plan?
Aug 1, 2016 MForm 4 →Aug 3, 7:01 pm EDTNEKTAR THERAPEUTICSNKTR5,000$5.15$25,750265,623— plan?
Jul 1, 2016 SForm 4 →Jul 5, 5:21 pm EDTNEKTAR THERAPEUTICSNKTR5,000$14.10$70,500260,623−1.88% plan?
Jul 1, 2016 MForm 4 →Jul 5, 5:21 pm EDTNEKTAR THERAPEUTICSNKTR5,000$5.15$25,750265,623— plan?
Jun 1, 2016 SForm 4 →Jun 3, 5:05 pm EDTNEKTAR THERAPEUTICSNKTR5,000$15.50$77,500260,623−1.88% plan?
Jun 1, 2016 MForm 4 →Jun 3, 5:05 pm EDTNEKTAR THERAPEUTICSNKTR5,000$5.15$25,750265,623— plan?
Jun 19, 2015 SForm 4 →Jun 23, 4:05 pm EDTNEKTAR THERAPEUTICSNKTR15,000$11.81$177,150260,623−5.44% plan?
Jun 19, 2015 MForm 4 →Jun 23, 4:05 pm EDTNEKTAR THERAPEUTICSNKTR15,000$8.81$132,150275,623— plan?

Reported trades — derivatives (options, RSUs, warrants)

TradeReported (ET)CompanySharesAvg priceTotalOwned afterΔ stakeFlags
Sep 23, 2026 AForm 4 →Sep 25, 8:22 pm EDTNEKTAR THERAPEUTICSNKTR4,000——4,000—
Aug 7, 2026 MForm 4 →Aug 11, 4:05 pm EDTTwist Bioscience CorpTWST18,417——0—10b5-1
Sep 27, 2018 AForm 4 →Oct 1, 8:21 pm EDTNEKTAR THERAPEUTICSNKTR9,500——9,500—
Jun 5, 2018 MForm 4 →Jun 7, 7:39 pm EDTNEKTAR THERAPEUTICSNKTR10,000——0—
May 3, 2018 MForm 4 →May 4, 6:55 pm EDTNEKTAR THERAPEUTICSNKTR25,000——0—
Apr 6, 2018 MForm 4 →Apr 9, 8:20 pm EDTNEKTAR THERAPEUTICSNKTR25,000——15,000—
Sep 19, 2017 AForm 4 →Sep 21, 4:40 pm EDTNEKTAR THERAPEUTICSNKTR22,500——22,500—
May 15, 2017 MForm 4 →May 17, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR5,000——0—
Apr 17, 2017 MForm 4 →Apr 19, 7:30 pm EDTNEKTAR THERAPEUTICSNKTR5,000——5,000—
Mar 14, 2017 MForm 4 →Mar 16, 6:02 pm EDTNEKTAR THERAPEUTICSNKTR5,000——10,000—
Sep 21, 2016 AForm 4 →Sep 23, 5:09 pm EDTNEKTAR THERAPEUTICSNKTR20,000——20,000—
Sep 15, 2016 MForm 4 →Sep 19, 5:13 pm EDTNEKTAR THERAPEUTICSNKTR15,000——0—
Aug 1, 2016 MForm 4 →Aug 3, 7:01 pm EDTNEKTAR THERAPEUTICSNKTR5,000——0—
Jul 1, 2016 MForm 4 →Jul 5, 5:21 pm EDTNEKTAR THERAPEUTICSNKTR5,000——5,000—
Jun 1, 2016 MForm 4 →Jun 3, 5:05 pm EDTNEKTAR THERAPEUTICSNKTR5,000——10,000—
Sep 15, 2015 AForm 4 →Sep 17, 5:12 pm EDTNEKTAR THERAPEUTICSNKTR27,500——15,000—
Jun 19, 2015 MForm 4 →Jun 23, 4:05 pm EDTNEKTAR THERAPEUTICSNKTR15,000——0—