Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 5,681
- Price
- $70.00
- Value
- $397,670
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•36 filings
NKTR
NEKTAR THERAPEUTICS
No net buying or selling imbalance over the last 3 months
No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
$0.00
0 buyers · 0 sellers
12-month purchases
$0.00
0 distinct insiders
12-month sales
$2,086,874
2 distinct insiders
Highlighted alerts
0
24 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
No executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
66
Raw transactions
Everything returned by the filing
24
Voluntary view
P/S trades after deterministic checks
42
Administrative noise
Stored, never alerted
24
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- S
- Shares
- 186
- Price
- $71.98
- Footnotes
- 2
Represents the number of shares sold by the reporting person to cover required tax withholding obligations in connection with the vesting of the RSUs held by the reporting person and does not represent a discretionary trade by the reporting person. This transaction was executed in multiple trades at prices ranging from $71.78 to $72.49. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide full information regarding the number of shares and the prices at which the transactions were effected upon the request to the SEC staff, the Issuer, or a security holder of the Issuer.
Raspberry interpretation
Informational — no alert
Reason: tax_withholding. The filing footnotes identify tax withholding.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 4,500
- Price
- $61.65
- Value
- $277,425
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 5,500
- Price
- $60.81
- Value
- $334,455
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 4,697
- Price
- $60.71
- Value
- $285,155
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 5,303
- Price
- $59.97
- Value
- $318,021
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 5,538
- Price
- $60.71
- Value
- $336,212
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 3,867
- Price
- $35.67
- Value
- $137,936
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,210
- Price
- $48.18
- Value
- $58,298
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 2,156
- Price
- $47.49
- Value
- $102,388
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,200
- Price
- $46.41
- Value
- $55,692
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 2,100
- Price
- $45.16
- Value
- $94,836
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,136
- Price
- $39.89
- Value
- $45,315
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 2,226
- Price
- $38.82
- Value
- $86,413
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 3,304
- Price
- $37.87
- Value
- $125,122
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 307
- Price
- $35.69
- Value
- $10,957
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 189
- Price
- $34.41
- Value
- $6,503
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 432
- Price
- $33.60
- Value
- $14,515
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 793
- Price
- $32.43
- Value
- $25,717
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,134
- Price
- $35.80
- Value
- $40,597
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 613
- Price
- $34.40
- Value
- $21,087
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,496
- Price
- $33.54
- Value
- $50,176
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,923
- Price
- $32.37
- Value
- $62,248
Zalevsky Jonathan
Chief R&D Officer
Sale 10b5-1
- Shares
- 485
- Price
- $30.10
- Value
- $14,599
ROBIN HOWARD W
President & CEO
Sale 10b5-1
- Shares
- 1,500
- Price
- $30.16
- Value
- $45,240
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Jun 30, 2026 | Zalevsky Jonathan Chief R&D Officer | Sale | 5,681 | $70.00 | $397,670 | |
| Jun 17, 2026 | ROBIN HOWARD W President & CEO | Sale | 4,500 | $61.65 | $277,425 | |
| Jun 17, 2026 | ROBIN HOWARD W President & CEO | Sale | 5,500 | $60.81 | $334,455 | |
| Jun 16, 2026 | ROBIN HOWARD W President & CEO | Sale | 4,697 | $60.71 | $285,155 | |
| Jun 16, 2026 | ROBIN HOWARD W President & CEO | Sale | 5,303 | $59.97 | $318,021 | |
| Jun 15, 2026 | Zalevsky Jonathan Chief R&D Officer | Sale | 5,538 | $60.71 | $336,212 | |
| Jan 20, 2026 | Zalevsky Jonathan Chief R&D Officer | Sale | 3,867 | $35.67 | $137,936 | |
| Sep 09, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,210 | $48.18 | $58,298 | |
| Sep 09, 2025 | ROBIN HOWARD W President & CEO | Sale | 2,156 | $47.49 | $102,388 | |
| Sep 09, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,200 | $46.41 | $55,692 | |
| Sep 09, 2025 | ROBIN HOWARD W President & CEO | Sale | 2,100 | $45.16 | $94,836 | |
| Sep 05, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,136 | $39.89 | $45,315 | |
| Sep 05, 2025 | ROBIN HOWARD W President & CEO | Sale | 2,226 | $38.82 | $86,413 | |
| Sep 05, 2025 | ROBIN HOWARD W President & CEO | Sale | 3,304 | $37.87 | $125,122 | |
| Sep 04, 2025 | Zalevsky Jonathan Chief R&D Officer | Sale | 307 | $35.69 | $10,957 | |
| Sep 04, 2025 | Zalevsky Jonathan Chief R&D Officer | Sale | 189 | $34.41 | $6,503 | |
| Sep 04, 2025 | Zalevsky Jonathan Chief R&D Officer | Sale | 432 | $33.60 | $14,515 | |
| Sep 04, 2025 | Zalevsky Jonathan Chief R&D Officer | Sale | 793 | $32.43 | $25,717 | |
| Sep 04, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,134 | $35.80 | $40,597 | |
| Sep 04, 2025 | ROBIN HOWARD W President & CEO | Sale | 613 | $34.40 | $21,087 | |
| Sep 04, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,496 | $33.54 | $50,176 | |
| Sep 04, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,923 | $32.37 | $62,248 | |
| Sep 02, 2025 | Zalevsky Jonathan Chief R&D Officer | Sale | 485 | $30.10 | $14,599 | |
| Sep 02, 2025 | ROBIN HOWARD W President & CEO | Sale | 1,500 | $30.16 | $45,240 |