Nektar Therapeutics

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Nektar Therapeutics
TickerNKTR
CIK #0000906709
CUSIP640268108
SectorLife Sciences - Pharmaceutical Preparations
Address455 Mission Bay Boulevard South, San Francisco, CA 94158
Source [EDGAR]
Reg D Offering (Form D) Filed Raised Terms
Nektar Therapeutics 2024-03-19 30.0 M Exemption: 506(b) · Duration: One year or less · Revenue: $25,000,001 - $100,000,000
CIK Filing 2011 - 2026
[0000906709] 10-K
[0000906709] 10-Q
[0000906709] 3
[0000906709] 4
[0000906709] 5
[0000906709] 8-K
[0000906709] D
[0000906709] SC 13G
Form 13D/13G Filer Form 13D/13G Subject Filed % Owned
Two SEAS Capital LP Nektar Therapeutics [2026-04-17] 0.0
FMR LLC Nektar Therapeutics [2026-03-06] 0.0
Vanguard Group Inc Nektar Therapeutics [2026-01-30] 0.0
Susquehanna Securities LLC Nektar Therapeutics [2025-11-13] 0.0
Nantahala Capital Management LLC Nektar Therapeutics [2025-08-14] 0.0
Biotechnology Value Fund L P Nektar Therapeutics [2025-07-09] 0.0
Integrated Core Strategies US LLC Nektar Therapeutics [2025-07-03] 0.0
Samlyn Capital LLC Nektar Therapeutics [2025-02-14] 0.0
Eventide Asset Management LLC Nektar Therapeutics [2024-11-14] 5.11
BlackRock Inc Nektar Therapeutics [2024-11-08] 8.7
BlackRock Inc Nektar Therapeutics [2024-10-22] 8.7
TCG Crossover GP II LLC Nektar Therapeutics [2024-03-15] 81949.9
RA Capital Management LP Nektar Therapeutics [2023-08-17] 9.8
Citadel Advisors LLC Nektar Therapeutics [2023-07-03] 4.0
Deep Track Capital LP Nektar Therapeutics [2023-04-14] 6.5
Invesco Ltd Nektar Therapeutics [2019-06-10] 12.6
Wellington Management Group LLP Nektar Therapeutics [2019-02-12] 6.21
FMR LLC Nektar Therapeutics [2018-02-13] 0.0
First Trust Portfolios LP Nektar Therapeutics [2016-01-28] 7.19
Federated Investors Inc /PA/ Nektar Therapeutics [2013-02-12] 5.06
Vanguard Group Inc Nektar Therapeutics [2013-02-12] 5.79
Form 3/4/5 Filer 2011 - 2026
Zalevsky Jonathan
Nektar Therapeutics
Robin Howard W
Rubinstein Linda M
Wilson Mark Andrew
Whitfield Roy A
Greer R Scott
Brainard Diana
Ajer Jeffrey Robert
Chess Robert
Kroin David
Deep Track Biotechnology Master Fund Ltd
Deep Track Capital LP
Curet Myriam
Gardiner Sandra A
Thomsen Jillian B
Eastham Karin
Labrucherie Gil M
Northcott John
Lingnau Lutz
Doberstein Stephen K
Nicholson John
Hora Maninder
Kuebler Christopher A
Winger Dennis L
Gergel Ivan P
Krivulka Joseph J
Wang Susan
Medve Robert
Ghosh Rinko
Insider Transaction (Form 3/4/5) Date Action Shares Price Value ($)
Zalevsky Jonathan
Common Stock
2026-02-18 Sell 180 $73.00 13,140
Robin Howard W
Common Stock
2026-02-18 Sell 423 $73.00 30,879
Zalevsky Jonathan
Common Stock
2026-01-20 Sell 3,867 $35.67 137,936
Robin Howard W
Stock Option · derivative
2025-12-22 Grant 86,667 $0.00
Zalevsky Jonathan
Common Stock
2025-12-22 Grant 6,250 $0.00
Robin Howard W
Common Stock
2025-12-22 Grant 21,667 $0.00
Zalevsky Jonathan
Stock Option · derivative
2025-12-22 Grant 25,000 $0.00
Robin Howard W
Common Stock
2025-11-25 Sell 2,207 $54.28 119,796
Wilson Mark Andrew
Common Stock
2025-11-25 Sell 630 $54.28 34,196
Zalevsky Jonathan
Common Stock
2025-11-25 Sell 1,157 $54.28 62,802
Robin Howard W
Common Stock
2025-11-21 Grant 7,110 $0.00
Zalevsky Jonathan
Common Stock
2025-11-21 Grant 2,666 $0.00
Zalevsky Jonathan
Stock Option · derivative
2025-11-21 Grant 4,766 $0.00
Wilson Mark Andrew
Common Stock
2025-11-21 Grant 1,903 $0.00
Robin Howard W
Stock Option · derivative
2025-11-21 Grant 12,170 $0.00
Wilson Mark Andrew
Stock Option · derivative
2025-11-21 Grant 3,400 $0.00
Chess Robert
Stock Option · derivative
2025-09-30 Grant 8,000 $0.00
Greer R Scott
Stock Option · derivative
2025-09-30 Grant 8,000 $0.00
Brainard Diana
Stock Option · derivative
2025-09-30 Grant 8,000 $0.00
Ajer Jeffrey Robert
Stock Option · derivative
2025-09-30 Grant 8,000 $0.00
showing 20 of 200 most recent transactions
13F Ownership Over TimeHoldersShares Held
2026-03-31 217 27,949,552
2025-12-31 184 18,298,996
2025-09-30 159 16,054,358
2025-06-30 114 9,092,580
2025-03-31 160 117,564,344
2024-12-31 147 126,730,890
2024-09-30 142 136,070,688
2024-06-30 136 135,077,067
2024-03-31 124 105,922,550
2023-12-31 129 111,978,055
2023-09-30 139 135,660,478
2023-06-30 152 134,081,912
Form 13F Holdings
Firm Period DFND Voting Shares
Moody Aldrich Partners LLC [2026-06-30] SOLE 30,342 64,135
Gainplan LLC [2026-06-30] SOLE 0 14,962
Capstone Capital Management Ltd [2026-06-30] SOLE 7,066 7,066
RFG Advisory LLC [2026-06-30] SOLE 0 4,592
LVW Advisors LLC [2026-06-30] SOLE 0 3,022
Curated Wealth Partners LLC [2026-06-30] OTR 0 1,163
Activest Wealth Management [2026-06-30] SOLE 0 200
MassMutual Private Wealth & Trust FSB [2026-06-30] SOLE 106 106
Gamma Investing LLC [2026-06-30] DFND 6 6
FNY Investment Advisers LLC [2026-06-30] SOLE 5,500 5
Farther Finance Advisors LLC [2026-06-30] SOLE 0 2
LRI Investments LLC [2026-06-30] SOLE 1 1
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