13F

Stock

Nektar Therapeutics

NKTR · held by 218 managers

Reported value

$1.88B

Holders

218

+65 new · −32 exited

Holders’ est. mark

$381.6M

Price effect on 144 books still in the name

Largest holder

$309.6M

Fidelity

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
Fidelity4.3M$309.6M$3MAdded$305.3M
BVF INC/IL2.56M$184.2M$46.3MAdded$118.2M
Two Seas Capital LP1.96M$141M$22.1MAdded$109.5M
VANGUARD CAPITAL MANAGEMENT LLC1.2M$86.1MHeld
TWO SIGMA INVESTMENTS, LP930.7K$67M$14MAdded$47M
Prosight Management, LP735K$52.9M$16.5MAdded$29.4M
BlackRock, Inc.692.6K$49.8M$19.2MAdded$22.5M
MORGAN STANLEY659.4K$47.4M$16.8MAdded$23.5M
ARMISTICE CAPITAL, LLC578K$41.6M$17.1MAdded$16.4M
Invesco Ltd.567.5K$40.8M$13.9MAdded$21M
Citadel513.5K$36.9M$9.19MAdded$23.9M
Sofinnova Investments, Inc.509.5K$36.7M$13MAdded$18.1M
Woodline Partners LP415.3K$29.9M$3.09MAdded$25.5M
MILLENNIUM MANAGEMENT LLC404.3K$29.1M$12MAdded$9.89M
EMERALD ADVISERS, LLC394.6K$28.4M$11.4MAdded$12.1M
Qube Research & Technologies Ltd390.7K$28.1M$9.61MAdded$14.4M
GEODE CAPITAL MANAGEMENT, LLC346.8K$25M$7.55MAdded$14.2M
UBS Group AG320.2K$23M$8.53MAdded$10.9M
GREAT POINT PARTNERS LLC316.5K$22.8M$6.25MAdded$13.9M
Vestal Point Capital, LP285K$20.5MNew
22NW, LP281.1K$20.2M$8.34MAdded$6.23M
PRIMECAP MANAGEMENT CO/CA/279.1K$20.1M$8.28MAdded$8.24M
ORBIMED ADVISORS LLC275K$19.8MNew
GILDER GAGNON HOWE & CO LLC271.8K$19.6M$6.18MAdded$10.7M
Nearwater Capital Markets, Ltd261.5K$18.8M$1.82MAdded$16.2M
EMERALD MUTUAL FUND ADVISERS TRUST256.1K$18.4M$7.51MAdded$7.72M
SUSQUEHANNA INTERNATIONAL GROUP, LLP249.1K$17.9M$7.39MAdded$1.72M
State Street244.7K$17.6M$5.81MAdded$9.34M
BRAIDWELL LP222.7K$16MNew
JPMORGAN CHASE & CO240.1K$15.7M$3.46MAdded$9.29M
Patient Square Capital LP210K$15.1MNew
Bronte Capital Management Pty Ltd.198.3K$14.3MNew
Quinn Opportunity Partners LLC179.2K$12.9M$2.55MAdded$9.27M
VANGUARD FIDUCIARY TRUST CO169.3K$12.2MHeld
CHARLES SCHWAB INVESTMENT MANAGEMENT INC168K$12.1M$3.57MAdded$7M
DAFNA Capital Management LLC165.2K$11.9M$2.23MAdded$8.71M
ADAR1 Capital Management, LLC161.3K$11.6M$2.14MAdded$8.56M
MARSHALL WACE, LLP140.6K$10.1M$712.8KAdded$9.1M
AMERIPRISE FINANCIAL INC136.7K$9.84MNew
GOLDMAN SACHS GROUP INC126.9K$9.13M$3.77MAdded$2.88M
Creek Drive Management Group LLC126.4K$9.09M$3.75MAdded$1.25M
Squadron Capital Management LLC125K$8.99MNew
SEVEN GRAND MANAGERS, LLC125K$8.99MNew
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A.122.3K$8.8M$3.63MAdded$848K
BNP PARIBAS FINANCIAL MARKETS121.5K$8.74M$3.61MCut−$146.7K
JANE STREET GROUP, LLC112.7K$8.11M$3.34MCut−$1.13M
Squarepoint Ops LLC107.4K$7.73M$601KAdded$6.87M
Russell Investments Group, Ltd.106.2K$7.64M$2.54MAdded$4.02M
Tetragon Partners GP Ltd103K$7.41M$2.06MAdded$4.48M
Monashee Investment Management LLC100K$7.2M$2.79MAdded$3.22M
ING GROEP NV100K$7.2M$2.97MAdded$2.97M
Connor, Clark & Lunn Investment Management Ltd.98.7K$7.1M$2.93MAdded$2.83M
DEUTSCHE BANK AG\91.7K$6.6M$2.69MAdded$2.76M
Moody Aldrich Partners LLC89.5K$6.44M$1.66MAdded$4.07M
Stonepine Capital Management, LLC85K$6.12M$2.52MAdded$2.52M
NORTHERN TRUST CORP78.6K$5.66M$1.66MAdded$3.28M
Jump Financial, LLC77.4K$5.57M$1.58MAdded$3.32M
VANGUARD PORTFOLIO MANAGEMENT LLC72.5K$5.22MHeld
ACT CAPITAL MANAGEMENT, LLC70.9K$5.1M$1.52MAdded$2.94M
Voleon Capital Management LP65.1K$4.68M$1.93MAdded$1.79M
F/m Investments LLC61.1K$4.4M$1.72MAdded$1.94M
Rhenman & Partners Asset Management AB59K$4.25MNew
BANK OF AMERICA CORP /DE/59K$4.24M$774.1KAdded$3.14M
Aquatic Capital Management LLC57K$4.1M$1.64MAdded$1.77M
Trexquant Investment LP55.5K$3.99M$558.4KAdded$3.2M
FRED ALGER MANAGEMENT, LLC53.2K$3.83M$1.58MAdded$1.54M
Alyeska Investment Group, L.P.50K$3.6MNew
Brevan Howard Capital Management LP48.5K$3.49MNew
LMR Partners LLP48.3K$3.47MNew
Swiss National Bank47.9K$3.45M$946.5KAdded$2.1M
Atom Investors LP43.2K$3.11MNew
SummitTX Capital, L.P.42.6K$3.07M$930.2KAdded$1.74M
Renaissance Technologies41.8K$3.01M$1.24MCut−$4.3M
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.36.9K$2.66M$1.1MAdded$100.4K
Jain Global LLC36.2K$2.6M$513.3KAdded$1.87M
Informed Momentum Co LLC36.1K$2.6M$384.9KAdded$2.05M
Balyasny Asset Management L.P.35.9K$2.58M$1.06MCut−$9.34M
Susquehanna Portfolio Strategies, LLC34.5K$2.48M$476.4KAdded$1.81M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC34K$2.45M$480.2KAdded$1.76M
BARCLAYS PLC32.4K$2.33M$458.2KAdded$1.68M
IRIDIAN ASSET MANAGEMENT LLC/CT31.3K$2.25M$288.6KAdded$1.84M
Birchview Capital, LP31K$2.23M$919.8KAdded$919.8K
JACOBS LEVY EQUITY MANAGEMENT, INC30.1K$2.17M$432.1KAdded$1.55M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM28.7K$2.06M$430.8KAdded$1.45M
Headlands Technologies LLC28.2K$2.03M$838KAdded$290.2K
KVP Capital Advisors, LP26.9K$1.94M$798.1KAdded$798.1K
Y-Intercept (Hong Kong) Ltd26.5K$1.91M$322.3KAdded$1.45M
Erste Asset Management GmbH28K$1.83M$630.6KAdded$630.6K
CITIGROUP INC25K$1.8M$743.2KAdded$289.6K
BIT Capital GmbH21.1K$1.52M$626KAdded$626K
ExodusPoint Capital Management, LP20.5K$1.47MNew
AWM Investment Company, Inc.20K$1.44M$593.4KCut−$252.2K
Man Group plc19.4K$1.4MNew
Deuterium Capital Management, LLC18K$1.3M$534.1KCut−$284K
WINTON GROUP Ltd16.9K$1.22M$230.4KAdded$888.4K
Legal & General Group Plc16.7K$1.2M$368.3KAdded$673.7K
IMC-Chicago, LLC16.4K$1.18MNew
ROYAL BANK OF CANADA16.2K$1.16M$207.9KAdded$868K
VANGUARD ASSET MANAGEMENT, Ltd15.9K$1.15MHeld
HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND15.8K$1.14MNew
Steward Partners Investment Advisory, LLC15.5K$1.12M$6.32KAdded$1.11M
TUDOR INVESTMENT CORP ET AL15K$1.08MNew
HighVista Strategies LLC14.6K$1.05M$348.6KAdded$550.5K
GLENMEDE TRUST CO NA13.9K$997.6K$254.9KAdded$634.4K
STATE OF WISCONSIN INVESTMENT BOARD13.7K$983.6K$256KAdded$618.7K
Point72 Asset Management, L.P.13.4K$961.5K$396.5KCut−$17.4M
Walleye Capital LLC12.9K$926.6KNew
Engineers Gate Manager LP12.3K$885.1K$365KCut−$691.2K
FIFTH LANE CAPITAL, LP12K$863.4KNew
SECTORAL ASSET MANAGEMENT INC10.9K$820.7K$361.9KAdded$250.5K
Vanguard Global Advisers, LLC11.3K$809.7KHeld
Scientech Research LLC11K$793.8KNew
ENVESTNET ASSET MANAGEMENT INC10.9K$783K$159.7KAdded$555.4K
JANUS HENDERSON GROUP PLC10.7K$771.1K$240.4KAdded$429.3K
OCCUDO QUANTITATIVE STRATEGIES LP8.95K$760.9KNew
Hudson Bay Capital Management LP10.3K$743.4K$306.6KCut−$1.78M
Palumbo Wealth Management LLC10.2K$731.9K$301.8KAdded$109.8K
ALLSTATE CORP9.84K$707.8KNew
State of New Jersey Common Pension Fund D8.29K$596.3KNew
Schonfeld Strategic Advisors LLC8.06K$580.1KNew
Diametric Capital, LP7.41K$533.2KNew
CenterBook Partners LP7.41K$532.9KNew
PEAK6 LLC7K$503.6KNew
Catalyst Funds Management Pty Ltd6.7K$482.1KNew
Zurcher Kantonalbank (Zurich Cantonalbank)6.7K$481.7KNew
ARIZONA STATE RETIREMENT SYSTEM6.66K$479.3KNew
Bank of New York Mellon Corp6.6K$474.7KNew
Neo Ivy Capital Management6.44K$463.3KNew
Vanguard Investments Australia, Ltd.6.36K$457.2KHeld
FOX RUN MANAGEMENT, L.L.C.6.87K$448.3K$157.8KCut−$673K
GROUP ONE TRADING LLC5.95K$428K$43KAdded$366.8K
Persistent Asset Partners Ltd5.82K$418.7KNew
SIMPLEX TRADING, LLC5.72K$411.7K$169.8KCut−$515.8K
KLP KAPITALFORVALTNING AS5.2K$374.1K$103.8KAdded$226.2K
Gainplan LLC5K$359.8K$148.3KCut−$211K
Virtus Investment Advisers, LLC4.98K$358.6K$144.3KAdded$153K
Entropy Technologies, LP4.59K$330.3KNew
LPL Financial LLC4.55K$327.4KNew
SEI INVESTMENTS CO4.47K$321.7K$132.7KCut−$113.5K
OSAIC HOLDINGS, INC.4.39K$316.1K$130.3KAdded$88.3K
Seven Fleet Capital Management LP4.3K$309.4K$127.6KCut−$324.8K
XTX Topco Ltd4.1K$295.2K$121.7KCut−$9.04K
FARALLON CAPITAL MANAGEMENT LLC4K$287.8KNew
China Universal Asset Management Co., Ltd.4K$287.8KNew
OP Asset Management Ltd3.99K$287.2KNew
GREAT LAKES ADVISORS, LLC3.74K$269.2KNew
Pictet Asset Management Holding SA3.72K$267.5KNew
Vanguard Personalized Indexing Management, LLC3.69K$265.1KNew
Orion Porfolio Solutions, LLC3.54K$254.9KNew
PROFUND ADVISORS LLC3.16K$227.3KNew
VICTORY CAPITAL MANAGEMENT INC3.13K$225KNew
TEACHER RETIREMENT SYSTEM OF TEXAS3.1K$222.9KNew
MANGROVE PARTNERS IM, LLC3.06K$220KNew
LVW Advisors, LLC3.02K$217.4KNew
RAYMOND JAMES FINANCIAL INC2.95K$212.5KNew
Allspring Global Investments Holdings, LLC2.9K$208.5KNew
Arrowpoint Investment Partners (Singapore) Pte. Ltd.2.83K$203.6K$84KCut−$4.7K
Bayforest Capital Ltd2.54K$182.6K$75.3KAdded$75.2K
Leonteq Securities AG2K$143.9K$59.3KCut−$194.3K
US BANCORP \DE\1.92K$137.9K$37.4KAdded$84.6K
Caitong International Asset Management Co., Ltd1.8K$129.4KNew
Tower Research Capital LLC (TRC)1.34K$96.8K$39.9KCut−$138.3K
Parallel Advisors, LLC1.05K$75.8K$31.2KAdded$31.2K
State of Wyoming927$66.7KNew
NATIXIS685$49.3K$20.3KAdded$20.3K
Allworth Financial LP681$49K$20.1KAdded$20.4K
RHUMBLINE ADVISERS600$43.2K$2.97KAdded$38.9K
Quantbot Technologies LP417$30KNew
LORD, ABBETT & CO. LLC405.1K$29.1KNew
BNP PARIBAS ASSET MANAGEMENT Holding S.A.397$28.6K$12.8KAdded$28.6K
WELLS FARGO & COMPANY/MN327$23.5K$5.67KAdded$15.5K
JONES FINANCIAL COMPANIES LLLP300$20.6K$2.87KAdded$16K
MONTAG A & ASSOCIATES INC250$18KNew
KELLEHER FINANCIAL ADVISORS200$14.4KNew
Activest Wealth Management200$14.4K$5.93KAdded$5.93K
Western Wealth Management, LLC199$14.3KNew
CWM, LLC176$12.7K$12.7KAdded$12.7K
SBI Securities Co., Ltd.141$10.1K$4.18KAdded$3.97K
LOS ANGELES CAPITAL MANAGEMENT LLC127$9.14K$1.16KAdded$1.16K
Golden State Equity Partners120$8.63KNew
EverSource Wealth Advisors, LLC111$7.99K$3.26KAdded$3.34K
HRT FINANCIAL LP84.1K$6.05K$2.49KCut−$2.33K
MassMutual Private Wealth & Trust, FSB78$5.61K$1.33KAdded$3.71K
BROWN BROTHERS HARRIMAN & CO66$4.75K$1.96KAdded$1.96K
MTM Investment Management, LLC66$4.75K$1.96KAdded$1.96K
SIGNATUREFD, LLC60$4.32K$1.78KAdded$1.36K
HOLLENCREST CAPITAL MANAGEMENT60$4.32KNew
Cambridge Investment Research Advisors, Inc.56.1K$4.03K$1.59KAdded$1.76K
Parkside Financial Bank & Trust52$3.74KNew
Rachor Investment Advisory Services, LLC41$2.95K$1.04KAdded$1.47K
ATLAS CAPITAL ADVISORS INC.40$2.88K$1.19KAdded$1.19K
Boreal Capital Management LLC36$2.59K$1.07KAdded$1.07K
ALGERT GLOBAL LLC34.8K$2.5K$455Added$1.86K
GSA CAPITAL PARTNERS LLP21.3K$1.53K$633Added$558
NISA INVESTMENT ADVISORS, LLC20$1.44K$593Added$593
Keating Financial Advisory Services, Inc.18$1.29K$534Cut−$1.62K
Kimelman & Baird, LLC13$936$386Added$386
Medallion Wealth Advisors, LLC13$935$385Added$385
AMERIFLEX GROUP, INC.13$935$385Added$385
PRICE T ROWE ASSOCIATES INC /MD/11.3K$812$308Added$373
Fortitude Family Office, LLC7$504$208Cut−$384
GAMMA Investing LLC6$432New
TWIN PEAKS WEALTH ADVISORS, LLC5$384New
FNY Investment Advisers, LLC4.75K$341$141Added$122
MAI Capital Management4$288New
SG Americas Securities, LLC3.23K$233$96Cut−$230
DANSKE BANK A/S2$144$59Added$59
ACADIAN ASSET MANAGEMENT LLC1.99K$141$57Cut−$2.91K
Smartleaf Asset Management LLC2$130$46Added$46
BESSEMER GROUP INC1.56K$112$47Added$46
Farther Finance Advisors, LLC1$76$34Cut−$5.88K
LRI Investments, LLC1$72$30Added$30
Root Financial Partners, LLC1$72New
KBC Group NV721$52New
Inspire Investing, LLC1$48Added$30
HUNTINGTON NATIONAL BANK1$1$0Held
Covestor Ltd0$0Held

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.