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NEKTAR THERAPEUTICS

NKTR Net selling
CIK 0000906709 #1869 in the set updated 18 Sep 2026
Bought (120 mo)
$1.38M
out of their own pocket, the only kind of buying there is
Sold (120 mo)
$212.36M
$2.99M on a plan · $161.30M straight out of an exercise
Sold at will
$48.07M
212 of 362 sales
Net
−$210.98M
−$46.69M against sales at will

By person

22 insiders · 387 transactions
3.5×

Howard W. Robin holds only 3.5 times base salary in stock. $3.96M of shares against $1.11M in salary for 2025.

Salary from the company's own proxy. The shares are what Howard W. Robin last reported holding, valued at $71.98, the price Common Stock was last bought or sold at on the open market here, on 18 Aug 2026.

Insider
Role
Bought
Sold
Net
Holding
Worth
Change
ROBIN HOWARD W
President & CEO
$72.66M (92) scheduled
−$72.66M
55,037
$3.96M
Doberstein Stephen K
SVP & Chief Scientific Officer
$259.20K (1)
$30.70M (17) scheduled
−$30.45M
107,668
$7.75M
+468.6%
Nicholson John
SVP & Chief Operating Officer
$29.63M (17)
−$29.63M
162,759
$11.72M
+33.4%
Labrucherie Gil M
SVP, COO & CFO
$23.30M (44) scheduled
−$23.30M
312,905
$22.52M
+471.5%
Thomsen Jillian B.
Chief Financial Officer
$8.79M (29) scheduled
−$8.79M
313,497
$22.57M
+546.0%
Hora Maninder
SVP Pharma Dev & Mfg Ops
$8.41M (15) scheduled
−$8.41M
94,694
$6.82M
+75.5%
CHESS ROBERT
Director
$7.40M (31) scheduled
−$7.40M
259,473
$18.68M
−16.2%
KUEBLER CHRISTOPHER A
Director
$6.08M (5) scheduled
−$6.08M
45,250
$3.26M
+64.5%
Lingnau Lutz
Director
$5.23M (8) scheduled
−$5.23M
35,800
$2.58M
+59.5%
Zalevsky Jonathan
Chief R&D Officer
$4.92M (39)
−$4.92M
9,570
$688.85K
Gergel Ivan P.
SVP & Chief Medical Officer
$4.62M (9) scheduled
−$4.62M
56,553
$4.07M
+106.9%
GREER R SCOTT
Director
$202.50K (1)
$4.42M (5) scheduled
−$4.22M
303,574
$21.85M
+208.7%
WINGER DENNIS L
Director
$3.87M (4)
−$3.87M
47,750
$3.44M
+52.8%
WHITFIELD ROY A
Director
$918.46K (4)
$17.10K (1) scheduled
+$901.36K
287,750
$20.71M
+475.5%
NORTHCOTT JOHN
SVP & Chief Commercial Officer
$691.58K (6)
−$691.58K
223,210
$16.07M
Wilson Mark Andrew
Chief Legal Officer
$673.71K (26)
−$673.71K
21,585
$1.55M
Ajer Jeffrey Robert
Director
$653.48K (8)
−$653.48K
34,153
$2.46M
Curet Myriam
Director
$109.24K (4)
−$109.24K
27,418
$1.97M
Deep Track Capital, LP entity
10% owner
$99.63K (1)
−$99.63K
18,344,000
$1.32B
−0.3%
EASTHAM KARIN
Director
$76.77K (1)
−$76.77K
23,233
$1.67M
Krivulka Joseph J
Director
82,000
$5.90M
+64.0%
Brainard Diana
Director
28,560
$2.06M

No percentages here. This company's share count has moved by a factor of 9.8 over the window, from 19,018,573 to 186,103,588 shares. A split, a merger or a large issue changes what the company is, and a holding measured at one point in that run is not a fraction of it at another.

Insider
Date
Role
Action
Shares
Price
Amount
ROBIN HOWARD W
18 Aug 2026
President & CEO
Sell
418
$71.98
$30.09K
Zalevsky Jonathan
18 Aug 2026
Chief R&D Officer
Sell
186
$71.98
$13.39K
ROBIN HOWARD W
19 May 2026
President & CEO
Sell
444
$65.51
$29.09K
Zalevsky Jonathan
19 May 2026
Chief R&D Officer
Sell
199
$65.51
$13.04K
ROBIN HOWARD W
18 Feb 2026
President & CEO
Sell
423
$73.00
$30.88K
Zalevsky Jonathan
18 Feb 2026
Chief R&D Officer
Sell
180
$73.00
$13.14K
ROBIN HOWARD W
25 Nov 2025
President & CEO
Sell
2,207
$54.28
$119.80K
Wilson Mark Andrew
25 Nov 2025
Chief Legal Officer
Sell
630
$54.28
$34.20K
Zalevsky Jonathan
25 Nov 2025
Chief R&D Officer
Sell
1,157
$54.28
$62.80K
ROBIN HOWARD W
19 Aug 2025
President & CEO
Sell
1,573
$26.59
$41.83K
Wilson Mark Andrew
19 Aug 2025
Chief Legal Officer
Sell
676
$26.59
$17.97K
Zalevsky Jonathan
19 Aug 2025
Chief R&D Officer
Sell
725
$26.59
$19.28K
ROBIN HOWARD W
19 May 2025
President & CEO
Sell
23,208
$0.67
$15.55K
Wilson Mark Andrew
19 May 2025
Chief Legal Officer
Sell
9,996
$0.67
$6.70K
Zalevsky Jonathan
19 May 2025
Chief R&D Officer
Sell
10,712
$0.67
$7.18K
ROBIN HOWARD W
19 Feb 2025
President & CEO
Sell
23,774
$1.01
$24.01K
Wilson Mark Andrew
19 Feb 2025
Chief Legal Officer
Sell
11,040
$1.01
$11.15K
Zalevsky Jonathan
19 Feb 2025
Chief R&D Officer
Sell
10,300
$1.01
$10.40K
Wilson Mark Andrew
24 Dec 2024
Chief Legal Officer
Sell
16,560
$0.89
$14.74K
Wilson Mark Andrew
23 Dec 2024
Chief Legal Officer
Sell
33,402
$0.90
$30.06K
Zalevsky Jonathan
19 Dec 2024
Chief R&D Officer
Sell
51,115
$0.94
$48.05K
ROBIN HOWARD W
18 Dec 2024
President & CEO
Sell
85,035
$0.99
$84.18K
ROBIN HOWARD W
17 Dec 2024
President & CEO
Sell
46,995
$1.01
$47.46K
ROBIN HOWARD W
19 Nov 2024
President & CEO
Sell
16,278
$1.01
$16.44K
Wilson Mark Andrew
19 Nov 2024
Chief Legal Officer
Sell
6,407
$1.01
$6.47K
Zalevsky Jonathan
19 Nov 2024
Chief R&D Officer
Sell
7,785
$1.01
$7.86K
ROBIN HOWARD W
19 Aug 2024
President & CEO
Sell
14,881
$1.28
$19.05K
Wilson Mark Andrew
19 Aug 2024
Chief Legal Officer
Sell
5,651
$1.28
$7.23K
Zalevsky Jonathan
19 Aug 2024
Chief R&D Officer
Sell
6,866
$1.28
$8.79K
Wilson Mark Andrew
17 May 2024
Chief Legal Officer
Sell
6,260
$1.75
$10.96K
Zalevsky Jonathan
17 May 2024
Chief R&D Officer
Sell
7,355
$1.75
$12.87K
ROBIN HOWARD W
17 May 2024
President & CEO
Sell
16,650
$1.75
$29.14K
Deep Track Capital, LP
10 May 2024
10% owner
Sell indirect
56,000
$1.78
$99.63K
ROBIN HOWARD W
20 Feb 2024
President & CEO
Sell
20,033
$0.68
$13.62K
Wilson Mark Andrew
20 Feb 2024
Chief Legal Officer
Sell
7,606
$0.68
$5.17K
Zalevsky Jonathan
20 Feb 2024
Chief R&D Officer
Sell
9,014
$0.68
$6.13K
ROBIN HOWARD W
17 Nov 2023
President & CEO
Sell
19,877
$0.49
$9.74K
Wilson Mark Andrew
17 Nov 2023
Chief Legal Officer
Sell
7,179
$0.49
$3.52K
Zalevsky Jonathan
17 Nov 2023
Chief R&D Officer
Sell
9,646
$0.49
$4.73K
Ajer Jeffrey Robert
18 Sep 2023
Director
Sell
4,359
$0.69
$3.01K
Curet Myriam
18 Sep 2023
Director
Sell
4,359
$0.69
$3.01K
ROBIN HOWARD W
16 Aug 2023
President & CEO
Sell
19,998
$0.78
$15.60K
Wilson Mark Andrew
16 Aug 2023
Chief Legal Officer
Sell
7,221
$0.78
$5.63K
Zalevsky Jonathan
16 Aug 2023
Chief R&D Officer
Sell
9,703
$0.78
$7.57K
ROBIN HOWARD W
16 May 2023
President & CEO
Sell
20,361
$0.72
$14.66K
Wilson Mark Andrew
16 May 2023
Chief Legal Officer
Sell
7,543
$0.72
$5.43K
Zalevsky Jonathan
16 May 2023
Chief R&D Officer
Sell
9,791
$0.72
$7.05K
ROBIN HOWARD W
16 Feb 2023
President & CEO
Sell
19,635
$3.00
$58.91K
Thomsen Jillian B.
16 Feb 2023
Chief Financial Officer
Sell
10,267
$3.00
$30.80K
Wilson Mark Andrew
16 Feb 2023
Chief Legal Officer
Sell
8,275
$3.00
$24.83K
Zalevsky Jonathan
16 Feb 2023
Chief R&D Officer
Sell
10,484
$3.00
$31.45K
Wilson Mark Andrew
16 Nov 2022
Chief Legal Officer
Sell
8,690
$3.57
$31.02K
ROBIN HOWARD W
16 Nov 2022
President & CEO
Sell
38,014
$3.57
$135.71K
Thomsen Jillian B.
16 Nov 2022
Chief Financial Officer
Sell
11,095
$3.57
$39.61K
Zalevsky Jonathan
16 Nov 2022
Chief R&D Officer
Sell
13,460
$3.57
$48.05K
Ajer Jeffrey Robert
23 Sep 2022
Director
Sell
4,198
$3.16
$13.27K
Curet Myriam
23 Sep 2022
Director
Sell
4,198
$3.16
$13.27K
CHESS ROBERT
22 Sep 2022
Director
Sell
5,100
$3.19
$16.27K
EASTHAM KARIN
13 Sep 2022
Director
Sell
21,267
$3.61
$76.77K
Zalevsky Jonathan
18 Aug 2022
Chief R&D Officer
Sell
73,716
$4.65
$342.78K
ROBIN HOWARD W
16 Aug 2022
President & CEO
Sell
13,759
$4.76
$65.49K
Thomsen Jillian B.
16 Aug 2022
SVP & Chief Accounting Officer
Sell
2,006
$4.76
$9.55K
Wilson Mark Andrew
16 Aug 2022
SVP & General Counsel
Sell
3,189
$4.76
$15.18K
Zalevsky Jonathan
16 Aug 2022
Chief R&D Officer
Sell
10,560
$4.76
$50.27K
Labrucherie Gil M
16 May 2022
SVP, COO & CFO
Sell
17,448
$3.95
$68.92K
NORTHCOTT JOHN
16 May 2022
SVP & Chief Commercial Officer
Sell
4,592
$3.95
$18.14K
ROBIN HOWARD W
16 May 2022
President & CEO
Sell
36,529
$3.95
$144.29K
Thomsen Jillian B.
16 May 2022
SVP & Chief Accounting Officer
Sell
5,841
$3.95
$23.07K
Wilson Mark Andrew
16 May 2022
SVP & General Counsel
Sell
3,136
$3.95
$12.39K
Zalevsky Jonathan
16 May 2022
Chief R&D Officer
Sell
21,673
$3.95
$85.61K
Labrucherie Gil M
16 Feb 2022
SVP, COO & CFO
Sell
7,579
$10.95
$82.99K
NORTHCOTT JOHN
16 Feb 2022
SVP & Chief Commercial Officer
Sell
4,852
$10.95
$53.13K
ROBIN HOWARD W
16 Feb 2022
President & CEO
Sell
12,480
$10.95
$136.66K
Thomsen Jillian B.
16 Feb 2022
SVP & Chief Accounting Officer
Sell
2,363
$10.95
$25.87K
Wilson Mark Andrew
16 Feb 2022
SVP & General Counsel
Sell
3,661
$10.95
$40.09K
Zalevsky Jonathan
16 Feb 2022
Chief R&D Officer
Sell
10,912
$10.95
$119.49K
Labrucherie Gil M
18 Nov 2021
SVP, COO & CFO
Sell
3,000
$12.69
$38.07K
NORTHCOTT JOHN
16 Nov 2021
SVP & Chief Commercial Officer
Sell
6,061
$13.16
$79.76K
ROBIN HOWARD W
16 Nov 2021
President & CEO
Sell
42,773
$13.16
$562.89K
Thomsen Jillian B.
16 Nov 2021
SVP & Chief Accounting Officer
Sell
6,741
$13.16
$88.71K
Wilson Mark Andrew
16 Nov 2021
SVP & General Counsel
Sell
6,564
$13.16
$86.38K
Zalevsky Jonathan
16 Nov 2021
Chief R&D Officer
Sell
20,869
$13.16
$274.64K
Labrucherie Gil M
16 Nov 2021
SVP, COO & CFO
Sell
21,149
$13.16
$278.32K
Ajer Jeffrey Robert
22 Sep 2021
Director
Sell
3,665
$17.78
$65.16K
CHESS ROBERT
22 Sep 2021
Director
Sell
4,600
$17.94
$82.52K
Curet Myriam
22 Sep 2021
Director
Sell
3,665
$17.78
$65.16K
Labrucherie Gil M
17 Aug 2021
SVP, COO & CFO
Sell
3,000
$13.56
$40.68K
Labrucherie Gil M
16 Aug 2021
SVP, COO & CFO
Sell
7,867
$13.83
$108.80K
NORTHCOTT JOHN
16 Aug 2021
SVP & Chief Commercial Officer
Sell
6,192
$13.83
$85.64K
Thomsen Jillian B.
16 Aug 2021
SVP & Chief Accounting Officer
Sell
13,339
$13.83
$184.48K
ROBIN HOWARD W
16 Aug 2021
President & CEO
Sell
11,515
$13.83
$159.25K
Wilson Mark Andrew
16 Aug 2021
SVP & General Counsel
Sell
1,910
$13.83
$26.42K
Zalevsky Jonathan
16 Aug 2021
Chief R&D Officer
Sell
7,662
$13.83
$105.97K
Labrucherie Gil M
17 May 2021
SVP, COO & CFO
Sell
7,898
$18.30
$144.53K
NORTHCOTT JOHN
17 May 2021
SVP & Chief Commercial Officer
Sell
6,085
$18.30
$111.36K
ROBIN HOWARD W
17 May 2021
President & CEO
Sell
11,560
$18.30
$211.55K
Thomsen Jillian B.
17 May 2021
SVP & Chief Accounting Officer
Sell
13,391
$18.30
$245.06K
Wilson Mark Andrew
17 May 2021
SVP & General Counsel
Sell
1,917
$18.30
$35.08K
Zalevsky Jonathan
17 May 2021
Chief R&D Officer
Sell
31,111
$18.30
$569.33K
Labrucherie Gil M
16 Feb 2021
SVP, COO & CFO
Sell
7,977
$22.37
$178.45K
NORTHCOTT JOHN
16 Feb 2021
SVP & Chief Commercial Officer
Sell
15,358
$22.37
$343.56K
ROBIN HOWARD W
16 Feb 2021
President & CEO
Sell
11,495
$22.37
$257.14K
Thomsen Jillian B.
16 Feb 2021
SVP & Chief Accounting Officer
Sell
11,705
$22.37
$261.84K
Wilson Mark Andrew
16 Feb 2021
SVP & General Counsel
Sell
2,173
$22.37
$48.61K
Zalevsky Jonathan
16 Feb 2021
Chief R&D Officer
Sell
24,141
$22.37
$540.03K
Curet Myriam
15 Dec 2020
Director
Sell
1,560
$17.82
$27.80K
Zalevsky Jonathan
23 Nov 2020
Chief R&D Officer
Sell
16,380
$16.40
$268.63K
Labrucherie Gil M
16 Nov 2020
SVP, COO & CFO
Sell
8,276
$16.93
$140.11K
ROBIN HOWARD W
16 Nov 2020
President & CEO
Sell
11,975
$16.93
$202.74K
Thomsen Jillian B.
16 Nov 2020
SVP & Chief Accounting Officer
Sell
11,976
$16.93
$202.75K
Wilson Mark Andrew
16 Nov 2020
SVP & General Counsel
Sell
1,539
$16.93
$26.06K
Zalevsky Jonathan
16 Nov 2020
Chief R&D Officer
Sell
29,618
$16.93
$501.43K
Ajer Jeffrey Robert
28 Sep 2020
Director
Sell
3,250
$17.25
$56.06K
CHESS ROBERT
25 Sep 2020
Director
Sell
5,500
$17.75
$97.63K
Ajer Jeffrey Robert
21 Sep 2020
Director
Sell
2,250
$19.74
$44.42K
Labrucherie Gil M
17 Sep 2020
SVP, COO & CFO
Sell
2,000
$19.96
$39.92K
Labrucherie Gil M
18 Aug 2020
SVP, COO & CFO
Sell
2,000
$19.68
$39.36K
Labrucherie Gil M
17 Aug 2020
SVP, COO & CFO
Sell
6,245
$19.67
$122.84K
ROBIN HOWARD W
17 Aug 2020
President & CEO
Sell
11,885
$19.67
$233.78K
Thomsen Jillian B.
17 Aug 2020
SVP & Chief Accounting Officer
Sell
1,367
$19.67
$26.89K
Wilson Mark Andrew
17 Aug 2020
SVP & General Counsel
Sell
1,529
$19.67
$30.08K
Zalevsky Jonathan
17 Aug 2020
Chief R&D Officer
Sell
26,200
$19.67
$515.35K
Labrucherie Gil M
19 May 2020
SVP, COO & CFO
Sell
2,000
$22.62
$45.24K
Labrucherie Gil M
18 May 2020
SVP, COO & CFO
Sell
5,727
$22.51
$128.91K
ROBIN HOWARD W
18 May 2020
President & CEO
Sell
8,968
$22.51
$201.87K
Thomsen Jillian B.
18 May 2020
SVP & Chief Accounting Officer
Sell
1,367
$22.51
$30.77K
Wilson Mark Andrew
18 May 2020
SVP & General Counsel
Sell
1,529
$22.51
$34.42K
Zalevsky Jonathan
18 May 2020
Chief R&D Officer
Sell
4,558
$22.51
$102.60K
Labrucherie Gil M
18 Feb 2020
SVP, COO & CFO
Sell
5,938
$22.35
$132.71K
ROBIN HOWARD W
18 Feb 2020
President & CEO
Sell
8,448
$22.35
$188.81K
Thomsen Jillian B.
18 Feb 2020
SVP & Chief Accounting Officer
Sell
1,394
$22.35
$31.16K
Zalevsky Jonathan
18 Feb 2020
Chief R&D Officer
Sell
4,774
$22.35
$106.70K
Labrucherie Gil M
18 Nov 2019
SVP, COO & CFO
Sell
8,863
$17.97
$159.27K
ROBIN HOWARD W
18 Nov 2019
President & CEO
Sell
13,556
$17.97
$243.60K
Thomsen Jillian B.
18 Nov 2019
SVP & Chief Accounting Officer
Sell
2,713
$17.97
$48.75K
Zalevsky Jonathan
18 Nov 2019
Chief R&D Officer
Sell
3,960
$17.97
$71.16K
Ajer Jeffrey Robert
30 Sep 2019
Director
Sell
2,375
$18.06
$42.89K
CHESS ROBERT
27 Sep 2019
Director
Sell
4,000
$17.99
$71.96K
Lingnau Lutz
27 Sep 2019
Director
Sell
3,000
$17.84
$53.52K
Ajer Jeffrey Robert
20 Sep 2019
Director
Sell
2,250
$20.24
$45.54K
Doberstein Stephen K
16 Aug 2019
SVP & Chief Scientific Officer
Sell
3,245
$18.15
$58.90K
Labrucherie Gil M
16 Aug 2019
SVP & Chief Financial Officer
Sell
5,063
$18.15
$91.89K
Nicholson John
16 Aug 2019
SVP & Chief Operating Officer
Sell
3,819
$18.15
$69.31K
ROBIN HOWARD W
16 Aug 2019
President & CEO
Sell
12,551
$18.15
$227.80K
Thomsen Jillian B.
16 Aug 2019
SVP & Chief Accounting Officer
Sell
1,809
$18.15
$32.83K
Doberstein Stephen K
16 May 2019
SVP & Chief Scientific Officer
Sell
3,461
$31.37
$108.57K
Hora Maninder
16 May 2019
SVP Pharma Dev & Mfg Ops
Sell
2,449
$31.37
$76.83K
Labrucherie Gil M
16 May 2019
SVP & Chief Financial Officer
Sell
3,767
$31.37
$118.17K
Nicholson John
16 May 2019
SVP & Chief Operating Officer
Sell
4,077
$31.37
$127.90K
ROBIN HOWARD W
16 May 2019
President & CEO
Sell
13,383
$31.37
$419.82K
Thomsen Jillian B.
16 May 2019
SVP & Chief Accounting Officer
Sell
1,928
$31.37
$60.48K
Doberstein Stephen K
19 Feb 2019
SVP & Chief Scientific Officer
Sell
3,310
$42.39
$140.31K
Hora Maninder
19 Feb 2019
SVP Pharma Dev & Mfg Ops
Sell
2,386
$42.39
$101.14K
Labrucherie Gil M
19 Feb 2019
SVP & Chief Financial Officer
Sell
3,592
$42.39
$152.26K
Nicholson John
19 Feb 2019
SVP & Chief Operating Officer
Sell
3,822
$42.39
$162.01K
Thomsen Jillian B.
19 Feb 2019
SVP & Chief Accounting Officer
Sell
1,808
$42.39
$76.64K
Doberstein Stephen K
16 Nov 2018
SVP & Chief Scientific Officer
Sell
4,524
$38.25
$173.04K
Hora Maninder
16 Nov 2018
SVP Pharma Dev & Mfg Ops
Sell
4,694
$38.25
$179.55K
Labrucherie Gil M
16 Nov 2018
SVP & Chief Financial Officer
Sell
6,515
$38.25
$249.20K
Nicholson John
16 Nov 2018
SVP & Chief Operating Officer
Sell
5,982
$38.25
$228.81K
Showing 250 of 387 transactions. The figures above use every one of them.

What was left out

Form 4 filings counted 443
Amendments (4/A) skipped 8
Filings about a different issuer 0
Unreadable filings 0
Joint filings 1
Sales on a Rule 10b5-1 plan 27
Sales straight out of an exercise 123
Sales at will 212
Transactions with no price 0
Shares from compensation/vesting 10,236,554
Sales filed before the plan box existed 165
History held since 2 Sep 2016