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Institutional Ownership · SEC Form 13F

Who owns Nektar Therapeutics (NKTR)


Which tracked institutional funds hold NKTR, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NKTR company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

232
Institutional holders
35M
Shares held (tracked funds)

How the tape is positioned

93 tracked funds added or opened NKTR while 57 trimmed or exited it between 2026-Q1 and 2026-Q2 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

NKTR’s largest tracked holder by dollar value, FMR LLC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes NKTR more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in NKTR divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 232 tracked filers holding NKTR, 169 increased or opened the position and 94 reduced or closed it; over the same quarter, open-market insider Form 4s were net sales.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in NKTR between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.

New buyers 32

  • Deep Track Capital, LP$21M
  • NORGES BANK$15M
  • Soleus Capital Management, L.P.$9M
  • APEIRON CAPITAL Ltd$7M
  • Nuveen, LLC$7M
  • Militia Capital Management LLC$6M

Full exits 28

  • LORD, ABBETT & CO. LLC$29M
  • Patient Square Capital LP$15M
  • Squadron Capital Management LLC$9M
  • Monashee Investment Management LLC$7M
  • HRT FINANCIAL LP$6M
  • Aquatic Capital Management LLC$4M

Largest adds

  • BlackRock, Inc.$156M
  • Two Seas Capital LP$75M
  • Vestal Point Capital, LP$49M
  • STATE STREET CORP$46M
  • FMR LLC$44M
  • GEODE CAPITAL MANAGEMENT, LLC$37M

Largest trims

  • Invesco Ltd.$35M
  • CITADEL ADVISORS LLC$26M
  • Qube Research & Technologies Ltd$19M
  • BVF INC/IL$17M
  • JPMORGAN CHASE & CO$14M
  • GREAT POINT PARTNERS LLC$11M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
FMR LLC added5,067,920$354M14.7%2026-Q2
Two Seas Capital LP added3,092,234$216M9.0%2026-Q2
BlackRock, Inc. added2,941,851$205M8.5%2026-Q2
BVF INC/IL trimmed2,391,075$167M6.9%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC added1,496,849$104M4.3%2026-Q2
TWO SIGMA INVESTMENTS, LP added1,202,004$84M3.5%2026-Q2
Vestal Point Capital, LP added1,000,000$70M2.9%2026-Q2
MORGAN STANLEY added936,560$65M2.7%2026-Q2
STATE STREET CORP added909,679$64M2.6%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added881,306$62M2.6%2026-Q2
Prosight Management, LP added810,000$57M2.3%2026-Q2
ARMISTICE CAPITAL, LLC added724,000$51M2.1%2026-Q2
GILDER GAGNON HOWE & CO LLC added600,873$42M1.7%2026-Q2
MILLENNIUM MANAGEMENT LLC added478,120$33M1.4%2026-Q2
BRAIDWELL LP added473,617$33M1.4%2026-Q2
Sofinnova Investments, Inc. trimmed471,763$33M1.4%2026-Q2
Woodline Partners LP added470,875$33M1.4%2026-Q2
ORBIMED ADVISORS LLC added465,346$32M1.3%2026-Q2
UBS Group AG added428,400$30M1.2%2026-Q2
EMERALD ADVISERS, LLC trimmed390,158$27M1.1%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC added348,540$24M1.0%2026-Q2
DAFNA Capital Management LLC added318,380$22M0.9%2026-Q2
NORTHERN TRUST CORP added308,531$22M0.9%2026-Q2
Deep Track Capital, LP trimmed300,000$21M0.9%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC added284,971$20M0.8%2026-Q2
22NW, LP281,115$20M0.8%2026-Q2
SUSQUEHANNA INTERNATIONAL GROUP, LLP added278,977$19M0.8%2026-Q2
PRIMECAP MANAGEMENT CO/CA/ trimmed272,850$19M0.8%2026-Q2
BARCLAYS PLC added262,362$18M0.8%2026-Q2
Nearwater Capital Markets, Ltd261,500$18M0.8%2026-Q2
EMERALD MUTUAL FUND ADVISERS TRUST trimmed255,587$18M0.7%2026-Q2
ADAR1 Capital Management, LLC added244,184$17M0.7%2026-Q2
Creek Drive Management Group LLC added243,000$17M0.7%2026-Q2
SEVEN GRAND MANAGERS, LLC added240,000$17M0.7%2026-Q2
DEUTSCHE BANK AG\ added239,831$17M0.7%2026-Q2
VANGUARD FIDUCIARY TRUST CO added239,575$17M0.7%2026-Q2
GOLDMAN SACHS GROUP INC added228,490$16M0.7%2026-Q2
NORGES BANK added215,300$15M0.6%2026-Q2
Bronte Capital Management Pty Ltd. added198,434$14M0.6%2026-Q2
GREAT POINT PARTNERS LLC trimmed175,000$12M0.5%2026-Q2
AMERIPRISE FINANCIAL INC added165,941$12M0.5%2026-Q2
CITADEL ADVISORS LLC trimmed159,747$11M0.5%2026-Q2
Quinn Opportunity Partners LLC trimmed153,076$11M0.4%2026-Q2
Rhenman & Partners Asset Management AB added141,250$10M0.4%2026-Q2
Qube Research & Technologies Ltd trimmed130,521$9M0.4%2026-Q2
Soleus Capital Management, L.P. new128,362$9M0.4%2026-Q2
Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. added122,767$9M0.4%2026-Q2
Stonepine Capital Management, LLC added120,654$8M0.3%2026-Q2
SummitTX Capital, L.P. added112,934$8M0.3%2026-Q2
Jump Financial, LLC added107,351$7M0.3%2026-Q2
APEIRON CAPITAL Ltd new106,431$7M0.3%2026-Q2
CITIGROUP INC added102,760$7M0.3%2026-Q2
LMR Partners LLP added100,000$7M0.3%2026-Q2
ING GROEP NV100,000$7M0.3%2026-Q2
Nuveen, LLC trimmed96,636$7M0.3%2026-Q2
Bank of New York Mellon Corp added96,061$7M0.3%2026-Q2
Susquehanna Portfolio Strategies, LLC added95,770$7M0.3%2026-Q2
Militia Capital Management LLC new90,000$6M0.3%2026-Q2
ACT CAPITAL MANAGEMENT, LLC added89,300$6M0.3%2026-Q2
Russell Investments Group, Ltd. trimmed89,099$6M0.3%2026-Q2
Tetragon Partners GP Ltd trimmed86,996$6M0.3%2026-Q2
READYSTATE ASSET MANAGEMENT LP added85,110$6M0.2%2026-Q2
Birchview Capital, LP added81,000$6M0.2%2026-Q2
Invesco Ltd. trimmed79,856$6M0.2%2026-Q2
GROUP ONE TRADING LLC added70,371$5M0.2%2026-Q2
ALGERT GLOBAL LLC added67,130$5M0.2%2026-Q2
Moody Aldrich Partners LLC trimmed64,135$4M0.2%2026-Q2
Swiss National Bank added61,600$4M0.2%2026-Q2
F/m Investments LLC trimmed60,585$4M0.2%2026-Q2
BANK OF AMERICA CORP /DE/ added60,561$4M0.2%2026-Q2
ExodusPoint Capital Management, LP added58,507$4M0.2%2026-Q2
Trexquant Investment LP added56,680$4M0.2%2026-Q2
K2 PRINCIPAL FUND, L.P. new50,465$4M0.1%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added47,072$3M0.1%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/ added45,680$3M0.1%2026-Q2
RHUMBLINE ADVISERS added43,094$3M0.1%2026-Q2
LANDSCAPE CAPITAL MANAGEMENT, L.L.C. added41,902$3M0.1%2026-Q2
Voleon Capital Management LP trimmed40,838$3M0.1%2026-Q2
Anson Funds Management LP new40,535$3M0.1%2026-Q2
Atom Investors LP trimmed40,519$3M0.1%2026-Q2
Burkehill Global Management, LP new40,000$3M0.1%2026-Q2
IRIDIAN ASSET MANAGEMENT LLC/CT added38,802$3M0.1%2026-Q2
NOMURA HOLDINGS INC new38,657$3M0.1%2026-Q2
Jefferies Financial Group Inc. trimmed38,165$3M0.1%2026-Q2
Connor, Clark & Lunn Investment Management Ltd. trimmed36,897$3M0.1%2026-Q2
ALLIANCEBERNSTEIN L.P. trimmed36,000$3M0.1%2026-Q2
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added34,820$2M0.1%2026-Q2
ALPS ADVISORS INC new34,188$2M0.1%2026-Q2
FRED ALGER MANAGEMENT, LLC trimmed33,673$2M0.1%2026-Q2
Ghisallo Capital Management LLC new32,000$2M0.1%2026-Q2
WELLS FARGO & COMPANY/MN added31,586$2M0.1%2026-Q2
Blackstone Inc. new28,678$2M0.1%2026-Q2
Erste Asset Management GmbH28,000$2M0.1%2026-Q2
KVP Capital Advisors, LP26,900$2M0.1%2026-Q2
Ishara Investments LP added26,650$2M0.1%2026-Q2
WINTON GROUP Ltd added25,900$2M0.1%2026-Q2
Legal & General Group Plc added23,780$2M0.1%2026-Q2
Empowered Funds, LLC new23,441$2M0.1%2026-Q2
AQR CAPITAL MANAGEMENT LLC trimmed22,542$2M0.1%2026-Q2
Exome Asset Management LLC trimmed22,417$2M0.1%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership