Stephen K. Doberstein serves as Executive at NEKTAR THERAPEUTICS, where they oversee executive responsibilities. Since joining the company, Stephen K. Doberstein has executed 42 insider transactions totaling $31.0M, demonstrating a bearish approach to their equity position. Their most recent transaction on Dec 28, 2021 involved transacting 3,333 shares valued at $127.5K.
Stephen K. Doberstein currently holds 3,333 shares of NEKTAR THERAPEUTICS (NKTR), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Stephen K. Doberstein has been a net seller of NKTR stock. They have purchased $259.2K and sold $30.7M worth of shares.
Stephen K. Doberstein's most recent insider trade was on Dec 28, 2021, when they sold 3,333 shares at $38.25 per share.
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| 3,333 |
| $N/A |
| Discretionary |
| Sep 5, 2019 | NKTR | $259.2K | Purchase | 15,000 | $17.28 | Discretionary |
| Aug 16, 2019 | NKTR | $58.9K | Sale | 3,245 | $18.15 | Discretionary |
| May 16, 2019 | NKTR | $108.6K | Sale | 3,461 | $31.37 | Discretionary |
| Feb 19, 2019 | NKTR | $140.3K | Sale | 3,310 | $42.39 | Discretionary |
| Dec 14, 2018 | NKTR | $0 | Award | 23,950 | $N/A | Discretionary |
| Nov 16, 2018 | NKTR | $173.0K | Sale | 4,524 | $38.25 | Discretionary |
| Aug 16, 2018 | NKTR | $391.3K | Disposition | 6,701 | $58.40 | Discretionary |
| Aug 15, 2018 | NKTR | $0 | Award | 26,000 | $N/A | Discretionary |
| May 16, 2018 | NKTR | $286.4K | Sale | 3,435 | $83.39 | Discretionary |
| Apr 9, 2018 | NKTR | $4.8M | Sale | 49,500 | $96.13 | Discretionary |
| Apr 9, 2018 | NKTR | $356.9K | Option Exercise | 49,500 | $7.21 | Discretionary |
| Apr 6, 2018 | NKTR | $641.4K | Option Exercise | 60,000 | $10.69 | Discretionary |
| Apr 6, 2018 | NKTR | $360.5K | Option Exercise | 50,000 | $7.21 | Discretionary |
| Apr 6, 2018 | NKTR | $3.6K | Option Exercise | 500 | $7.21 | Discretionary |
| Apr 6, 2018 | NKTR | $10.1M | Sale | 110,500 | $91.69 | Discretionary |
| Feb 16, 2018 | NKTR | $201.2K | Sale | 2,426 | $82.94 | Discretionary |
| Dec 15, 2017 | NKTR | $0 | Award | 26,000 | $N/A | Discretionary |
| Nov 16, 2017 | NKTR | $211.5K | Disposition | 4,782 | $44.23 | Discretionary |
| Nov 15, 2017 | NKTR | $0 | Award | 17,500 | $N/A | Discretionary |
| Nov 8, 2017 | NKTR | $2.9M | Option Exercise | 300,000 | $9.53 | Discretionary |
| Nov 8, 2017 | NKTR | $9.0M | Sale | 300,000 | $30.09 | Discretionary |
| Nov 7, 2017 | NKTR | $1.9M | Sale | 75,409 | $25.78 | Discretionary |
| Nov 7, 2017 | NKTR | $718.6K | Option Exercise | 75,409 | $9.53 | Discretionary |
| Nov 6, 2017 | NKTR | $522.4K | Sale | 20,914 | $24.98 | Discretionary |
| Nov 6, 2017 | NKTR | $199.3K | Option Exercise | 20,914 | $9.53 | Discretionary |
| Oct 5, 2017 | NKTR | $416.2K | Option Exercise | 43,677 | $9.53 | Discretionary |
| Oct 5, 2017 | NKTR | $1.1M | Sale | 43,677 | $24.97 | Discretionary |
| Aug 16, 2017 | NKTR | $32.9K | Sale | 1,701 | $19.32 | Discretionary |