Jonathan Zalevsky

Track

Insider profile

Currently holds positions in Nektar Therapeutics and Nektar Therapeutics

Performance

Overall performance
3.8
Performance over holding periods
3.8
30 days 90 days 120 days
Average return 4% 8.2% 15.1%
Success rate 57% 68% 82%
Transactions
27 0% Buy
34 71% Buy
47 69% Buy
Ranking by holding-period performance

Positions

Position Company Period
Chief Research & Development Officer Nektar Therapeutics Oct. 1, 2019 -
Senior Vice President - Research , Chief Scientific Officer Nektar Therapeutics Nov. 22, 2017 -
Jonathan Zalevsky's trades of Nektar Therapeutics's stock


• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date Company B/S Transaction type Nb. shares
Price
Value 		Number of shares Price Value Details
2026-07-02 2026-06-30
PlS Planned sale
80,621 -10.2%
382.07
US$4,074,563 		80,621 -10.2% 382.07 US$4,074,563
2026-06-30 2026-06-30
PrS Proposed sale
53,159
311.89
US$3,567,380 		53,159 311.89 US$3,567,380
2026-06-30 2026-06-30
PrS Proposed sale
20,411
329.54
US$4,264,429 		20,411 329.54 US$4,264,429
2026-06-17 2026-06-15
PlS Planned sale
5,538 -26.4%
60.71
US$336,212 		5,538 -26.4% 60.71 US$336,212
2026-06-15 2026-06-15
PrS Proposed sale
5,538
59.38
US$328,846 		5,538 59.38 US$328,846
2026-05-21 2026-05-19
S Sale
199 -0.9%
65.51
US$13,036 		199 -0.9% 65.51 US$13,036
2026-05-19 2026-05-19
PrS Proposed sale
199
65.51
US$13,036 		199 65.51 US$13,036
2026-02-20 2026-02-18
S Sale
180 -0.8%
73.00
US$13,140 		180 -0.8% 73.00 US$13,140
2026-02-18 2026-02-18
PrS Proposed sale
180
73.00
US$13,140 		180 73.00 US$13,140
2026-01-22 2026-01-20
PlS Planned sale
3,867 -15.3%
35.67
US$137,936 		3,867 -15.3% 35.67 US$137,936
2026-01-20 2026-01-20
PrS Proposed sale
3,867
35.67
US$137,946 		3,867 35.67 US$137,946
2025-11-25 2025-11-25
PrS Proposed sale
1,157
58.82
US$68,053 		1,157 58.82 US$68,053
2025-11-25 2025-11-25
S Sale
1,157 -5.7%
54.28
US$62,802 		1,157 -5.7% 54.28 US$62,802
2025-09-08 2025-09-04
PlS Planned sale
307 -1.7%
35.69
US$10,957 		307 -1.7% 35.69 US$10,957
2025-09-08 2025-09-04
PlS Planned sale
189 -1.1%
34.41
US$6,503 		189 -1.1% 34.41 US$6,503
2025-09-08 2025-09-04
PlS Planned sale
432 -2.3%
33.60
US$14,515 		432 -2.3% 33.60 US$14,515
2025-09-08 2025-09-04
PlS Planned sale
793 -4.1%
32.43
US$25,717 		793 -4.1% 32.43 US$25,717
2025-09-04 2025-09-04
PrS Proposed sale
1,721
33.52
US$57,688 		1,721 33.52 US$57,688
2025-09-04 2025-09-02
PlS Planned sale
485 -2.5%
30.10
US$14,598 		485 -2.5% 30.10 US$14,598
2025-09-02 2025-09-02
PrS Proposed sale
485
30.10
US$14,600 		485 30.10 US$14,600
2025-08-21 2025-08-19
S Sale
725 -3.6%
26.59
US$19,278 		725 -3.6% 26.59 US$19,278
2025-08-19 2025-08-19
PrS Proposed sale
725
26.59
US$19,278 		725 26.59 US$19,278
2025-05-21 2025-05-19
S Sale
10,712 -3.4%
0.67
US$7,177 		10,712 -3.4% 0.67 US$7,177
2025-05-19 2025-05-19
PrS Proposed sale
10,712
0.67
US$7,191 		10,712 0.67 US$7,191
2025-02-21 2025-02-19
S Sale
10,300 -3.2%
1.01
US$10,403 		10,300 -3.2% 1.01 US$10,403
2025-02-19 2025-02-19
PrS Proposed sale
10,300
1.01
US$10,391 		10,300 1.01 US$10,391
2024-12-20 2024-12-19
S Sale
51,115 -13.5%
0.94
US$48,048 		51,115 -13.5% 0.94 US$48,048
2024-12-19 2024-12-19
PrS Proposed sale
51,115
0.94
US$48,063 		51,115 0.94 US$48,063
2024-11-20 2024-11-19
S Sale
7,785 -3.1%
1.01
US$7,863 		7,785 -3.1% 1.01 US$7,863
2024-11-19 2024-11-19
PrS Proposed sale
7,785
1.01
US$7,878 		7,785 1.01 US$7,878
2024-08-20 2024-08-19
S Sale
6,866 -2.7%
1.28
US$8,788 		6,866 -2.7% 1.28 US$8,788
2024-08-19 2024-08-19
PrS Proposed sale
6,866
1.28
US$8,762 		6,866 1.28 US$8,762
2024-05-20 2024-05-17
S Sale
7,355 -2.8%
1.75
US$12,871 		7,355 -2.8% 1.75 US$12,871
2024-05-20 2024-05-17
S Sale
7,355 -2.8%
1.75
US$12,871 		7,355 -2.8% 1.75 US$12,871
2024-05-17 2024-05-17
PrS Proposed sale
7,355
1.75
US$12,901 		7,355 1.75 US$12,901
2024-02-22 2024-02-20
S Sale
9,014 -3.3%
0.68
US$6,130 		9,014 -3.3% 0.68 US$6,130
2024-02-20 2024-02-20
PrS Proposed sale
9,014
0.68
US$6,102 		9,014 0.68 US$6,102
2023-11-20 2023-11-17
S Sale
9,646 -3.4%
0.49
US$4,727 		9,646 -3.4% 0.49 US$4,727
2023-11-17 2023-11-17
PrS Proposed sale
9,646
0.49
US$4,723 		9,646 0.49 US$4,723
2023-08-17 2023-08-16
S Sale
9,703 -3.3%
0.78
US$7,568 		9,703 -3.3% 0.78 US$7,568
2023-05-17 2023-05-16
S Sale
9,791 -3.2%
0.72
US$7,050 		9,791 -3.2% 0.72 US$7,050
2023-02-17 2023-02-16
S Sale
10,484 -3.3%
3.00
US$31,452 		10,484 -3.3% 3.00 US$31,452
2022-11-18 2022-11-16
S Sale
13,460 -4.1%
3.57
US$48,052 		13,460 -4.1% 3.57 US$48,052
2022-08-19 2022-08-18
PlS Planned sale
73,716 -18.4%
4.65
US$342,779 		73,716 -18.4% 4.65 US$342,779
2022-08-17 2022-08-16
S Sale
10,560 -2.6%
4.76
US$50,266 		10,560 -2.6% 4.76 US$50,266