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.
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.
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| FMR LLC added | 5,067,920 | $354M | 14.7% | 2026-Q2 |
| Two Seas Capital LP added | 3,092,234 | $216M | 9.0% | 2026-Q2 |
| BlackRock, Inc. added | 2,941,851 | $205M | 8.5% | 2026-Q2 |
| BVF INC/IL trimmed | 2,391,075 | $167M | 6.9% | 2026-Q2 |
| VANGUARD CAPITAL MANAGEMENT LLC added | 1,496,849 | $104M | 4.3% | 2026-Q2 |
| TWO SIGMA INVESTMENTS, LP added | 1,202,004 | $84M | 3.5% | 2026-Q2 |
| Vestal Point Capital, LP added | 1,000,000 | $70M | 2.9% | 2026-Q2 |
| MORGAN STANLEY added | 936,560 | $65M | 2.7% | 2026-Q2 |
| STATE STREET CORP added | 909,679 | $64M | 2.6% | 2026-Q2 |
| GEODE CAPITAL MANAGEMENT, LLC added | 881,306 | $62M | 2.6% | 2026-Q2 |
| Prosight Management, LP added | 810,000 | $57M | 2.3% | 2026-Q2 |
| ARMISTICE CAPITAL, LLC added | 724,000 | $51M | 2.1% | 2026-Q2 |
| GILDER GAGNON HOWE & CO LLC added | 600,873 | $42M | 1.7% | 2026-Q2 |
| MILLENNIUM MANAGEMENT LLC added | 478,120 | $33M | 1.4% | 2026-Q2 |
| BRAIDWELL LP added | 473,617 | $33M | 1.4% | 2026-Q2 |
| Sofinnova Investments, Inc. trimmed | 471,763 | $33M | 1.4% | 2026-Q2 |
| Woodline Partners LP added | 470,875 | $33M | 1.4% | 2026-Q2 |
| ORBIMED ADVISORS LLC added | 465,346 | $32M | 1.3% | 2026-Q2 |
| UBS Group AG added | 428,400 | $30M | 1.2% | 2026-Q2 |
| EMERALD ADVISERS, LLC trimmed | 390,158 | $27M | 1.1% | 2026-Q2 |
| VANGUARD PORTFOLIO MANAGEMENT LLC added | 348,540 | $24M | 1.0% | 2026-Q2 |
| DAFNA Capital Management LLC added | 318,380 | $22M | 0.9% | 2026-Q2 |
| NORTHERN TRUST CORP added | 308,531 | $22M | 0.9% | 2026-Q2 |
| Deep Track Capital, LP trimmed | 300,000 | $21M | 0.9% | 2026-Q2 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 284,971 | $20M | 0.8% | 2026-Q2 |
| 22NW, LP | 281,115 | $20M | 0.8% | 2026-Q2 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 278,977 | $19M | 0.8% | 2026-Q2 |
| PRIMECAP MANAGEMENT CO/CA/ trimmed | 272,850 | $19M | 0.8% | 2026-Q2 |
| BARCLAYS PLC added | 262,362 | $18M | 0.8% | 2026-Q2 |
| Nearwater Capital Markets, Ltd | 261,500 | $18M | 0.8% | 2026-Q2 |
| EMERALD MUTUAL FUND ADVISERS TRUST trimmed | 255,587 | $18M | 0.7% | 2026-Q2 |
| ADAR1 Capital Management, LLC added | 244,184 | $17M | 0.7% | 2026-Q2 |
| Creek Drive Management Group LLC added | 243,000 | $17M | 0.7% | 2026-Q2 |
| SEVEN GRAND MANAGERS, LLC added | 240,000 | $17M | 0.7% | 2026-Q2 |
| DEUTSCHE BANK AG\ added | 239,831 | $17M | 0.7% | 2026-Q2 |
| VANGUARD FIDUCIARY TRUST CO added | 239,575 | $17M | 0.7% | 2026-Q2 |
| GOLDMAN SACHS GROUP INC added | 228,490 | $16M | 0.7% | 2026-Q2 |
| NORGES BANK added | 215,300 | $15M | 0.6% | 2026-Q2 |
| Bronte Capital Management Pty Ltd. added | 198,434 | $14M | 0.6% | 2026-Q2 |
| GREAT POINT PARTNERS LLC trimmed | 175,000 | $12M | 0.5% | 2026-Q2 |
| AMERIPRISE FINANCIAL INC added | 165,941 | $12M | 0.5% | 2026-Q2 |
| CITADEL ADVISORS LLC trimmed | 159,747 | $11M | 0.5% | 2026-Q2 |
| Quinn Opportunity Partners LLC trimmed | 153,076 | $11M | 0.4% | 2026-Q2 |
| Rhenman & Partners Asset Management AB added | 141,250 | $10M | 0.4% | 2026-Q2 |
| Qube Research & Technologies Ltd trimmed | 130,521 | $9M | 0.4% | 2026-Q2 |
| Soleus Capital Management, L.P. new | 128,362 | $9M | 0.4% | 2026-Q2 |
| Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A. added | 122,767 | $9M | 0.4% | 2026-Q2 |
| Stonepine Capital Management, LLC added | 120,654 | $8M | 0.3% | 2026-Q2 |
| SummitTX Capital, L.P. added | 112,934 | $8M | 0.3% | 2026-Q2 |
| Jump Financial, LLC added | 107,351 | $7M | 0.3% | 2026-Q2 |
| APEIRON CAPITAL Ltd new | 106,431 | $7M | 0.3% | 2026-Q2 |
| CITIGROUP INC added | 102,760 | $7M | 0.3% | 2026-Q2 |
| LMR Partners LLP added | 100,000 | $7M | 0.3% | 2026-Q2 |
| ING GROEP NV | 100,000 | $7M | 0.3% | 2026-Q2 |
| Nuveen, LLC trimmed | 96,636 | $7M | 0.3% | 2026-Q2 |
| Bank of New York Mellon Corp added | 96,061 | $7M | 0.3% | 2026-Q2 |
| Susquehanna Portfolio Strategies, LLC added | 95,770 | $7M | 0.3% | 2026-Q2 |
| Militia Capital Management LLC new | 90,000 | $6M | 0.3% | 2026-Q2 |
| ACT CAPITAL MANAGEMENT, LLC added | 89,300 | $6M | 0.3% | 2026-Q2 |
| Russell Investments Group, Ltd. trimmed | 89,099 | $6M | 0.3% | 2026-Q2 |
| Tetragon Partners GP Ltd trimmed | 86,996 | $6M | 0.3% | 2026-Q2 |
| READYSTATE ASSET MANAGEMENT LP added | 85,110 | $6M | 0.2% | 2026-Q2 |
| Birchview Capital, LP added | 81,000 | $6M | 0.2% | 2026-Q2 |
| Invesco Ltd. trimmed | 79,856 | $6M | 0.2% | 2026-Q2 |
| GROUP ONE TRADING LLC added | 70,371 | $5M | 0.2% | 2026-Q2 |
| ALGERT GLOBAL LLC added | 67,130 | $5M | 0.2% | 2026-Q2 |
| Moody Aldrich Partners LLC trimmed | 64,135 | $4M | 0.2% | 2026-Q2 |
| Swiss National Bank added | 61,600 | $4M | 0.2% | 2026-Q2 |
| F/m Investments LLC trimmed | 60,585 | $4M | 0.2% | 2026-Q2 |
| BANK OF AMERICA CORP /DE/ added | 60,561 | $4M | 0.2% | 2026-Q2 |
| ExodusPoint Capital Management, LP added | 58,507 | $4M | 0.2% | 2026-Q2 |
| Trexquant Investment LP added | 56,680 | $4M | 0.2% | 2026-Q2 |
| K2 PRINCIPAL FUND, L.P. new | 50,465 | $4M | 0.1% | 2026-Q2 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 47,072 | $3M | 0.1% | 2026-Q2 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 45,680 | $3M | 0.1% | 2026-Q2 |
| RHUMBLINE ADVISERS added | 43,094 | $3M | 0.1% | 2026-Q2 |
| LANDSCAPE CAPITAL MANAGEMENT, L.L.C. added | 41,902 | $3M | 0.1% | 2026-Q2 |
| Voleon Capital Management LP trimmed | 40,838 | $3M | 0.1% | 2026-Q2 |
| Anson Funds Management LP new | 40,535 | $3M | 0.1% | 2026-Q2 |
| Atom Investors LP trimmed | 40,519 | $3M | 0.1% | 2026-Q2 |
| Burkehill Global Management, LP new | 40,000 | $3M | 0.1% | 2026-Q2 |
| IRIDIAN ASSET MANAGEMENT LLC/CT added | 38,802 | $3M | 0.1% | 2026-Q2 |
| NOMURA HOLDINGS INC new | 38,657 | $3M | 0.1% | 2026-Q2 |
| Jefferies Financial Group Inc. trimmed | 38,165 | $3M | 0.1% | 2026-Q2 |
| Connor, Clark & Lunn Investment Management Ltd. trimmed | 36,897 | $3M | 0.1% | 2026-Q2 |
| ALLIANCEBERNSTEIN L.P. trimmed | 36,000 | $3M | 0.1% | 2026-Q2 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM added | 34,820 | $2M | 0.1% | 2026-Q2 |
| ALPS ADVISORS INC new | 34,188 | $2M | 0.1% | 2026-Q2 |
| FRED ALGER MANAGEMENT, LLC trimmed | 33,673 | $2M | 0.1% | 2026-Q2 |
| Ghisallo Capital Management LLC new | 32,000 | $2M | 0.1% | 2026-Q2 |
| WELLS FARGO & COMPANY/MN added | 31,586 | $2M | 0.1% | 2026-Q2 |
| Blackstone Inc. new | 28,678 | $2M | 0.1% | 2026-Q2 |
| Erste Asset Management GmbH | 28,000 | $2M | 0.1% | 2026-Q2 |
| KVP Capital Advisors, LP | 26,900 | $2M | 0.1% | 2026-Q2 |
| Ishara Investments LP added | 26,650 | $2M | 0.1% | 2026-Q2 |
| WINTON GROUP Ltd added | 25,900 | $2M | 0.1% | 2026-Q2 |
| Legal & General Group Plc added | 23,780 | $2M | 0.1% | 2026-Q2 |
| Empowered Funds, LLC new | 23,441 | $2M | 0.1% | 2026-Q2 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 22,542 | $2M | 0.1% | 2026-Q2 |
| Exome Asset Management LLC trimmed | 22,417 | $2M | 0.1% | 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.
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.