Security record · archived quarter
NKTR
Nektar Therapeutics · Healthcare · Biotechnology
67Tracked holders
+13Δ holders
13.34MShares held
$957.94MReported value
+15New positions
−3Exits
Momentum inputs (comparable managers):
holder breadth +24.1% ·
share flow +30.0% ·
net new positions +17.9%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q1 2026
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 78 | +13 | 18.28M | $1.28B | +22 | −8 |
| Q1 2026 | 67 | +13 | 13.34M | $957.94M | +15 | −3 |
| Q4 2025 | 55 | +1 | 8.38M | $354.26M | +2 | — |
| Q3 2025 | 15 | 0 | 5.00M | $284.66M | +2 | −2 |
| Q2 2025 | 12 | -1 | 3.08M | $79.53M | +1 | −2 |
| Q1 2025 | 10 | -1 | 25.55M | $17.36M | — | −1 |
| Q4 2024 | 11 | 0 | 24.86M | $23.13M | — | — |
| Q3 2024 | 10 | +2 | 27.79M | $36.10M | +2 | — |
| Q2 2024 | 8 | — | 27.40M | $33.98M | — | — |
Who holds it · Q1 2026
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fidelity (FMR) ✦ | 4.30M | +4155.1% | $309.61M | 0.0% | ▲ Add | 4 | SEC ↗ ×3 |
| 2 | Vanguard Capital Management Llc | 1.20M | — | $86.13M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Two Sigma Investments ✦ | 930.74K | +96.8% | $66.97M | 0.1% | ▲ Add | 8 | SEC ↗ |
| 4 | BlackRock ✦ (passive) | 692.65K | +7.3% | $49.84M | 0.0% | ▲ Add | 4 | SEC ↗ ×12 |
| 5 | Morgan Stanley ✦ | 659.39K | +16.4% | $47.44M | 0.0% | ▲ Add | 3 | SEC ↗ ×8 |
| 6 | Invesco Ltd. | 567.46K | +21.2% | $40.83M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 7 | Citadel Advisors ✦ | 513.53K | +65.8% | $36.95M | 0.0% | ▲ Add | 3 | SEC ↗ ×2 |
| 8 | Millennium Management ✦ | 404.28K | -11.0% | $29.09M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 9 | Qube Research & Technologies Ltd | 390.68K | +20.6% | $28.11M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 10 | Geode Capital Management ✦ (passive) | 346.80K | +36.3% | $24.96M | 0.0% | ▲ Add | 8 | SEC ↗ ×2 |
| 11 | UBS Group AG | 320.17K | +11.3% | $23.04M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 12 | PRIMECAP Management ✦ | 279.15K | -0.4% | $20.08M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 13 | Susquehanna International Group, Llp | 249.09K | -35.0% | $17.92M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 14 | State Street Global Advisors ✦ (passive) | 244.73K | +25.1% | $17.61M | 0.0% | ▲ Add | 6 | SEC ↗ |
| 15 | JPMorgan Chase ✦ | 240.10K | +59.2% | $15.67M | 0.0% | ▲ Add | 3 | SEC ↗ ×3 |
| 16 | Charles Schwab Investment… | 168.01K | +39.6% | $12.09M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 17 | Marshall Wace ✦ | 140.59K | +485.2% | $10.12M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 18 | Ameriprise Financial Inc | 136.73K | New | $9.84M | 0.0% | New | 1 | SEC ↗ ×2 |
| 19 | Goldman Sachs Group ✦ | 126.94K | -14.1% | $9.13M | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 20 | Bnp Paribas Financial Markets | 121.54K | -42.2% | $8.74M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 21 | Jane Street Group, Llc | 112.65K | -48.4% | $8.11M | 0.0% | ▼ Trim | 2 | SEC ↗ ×3 |
| 22 | Squarepoint Ops LLC | 107.39K | +430.1% | $7.73M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 23 | Russell Investments Group, Ltd. | 106.25K | +24.0% | $7.64M | 0.0% | ▲ Add | 2 | SEC ↗ ×5 |
| 24 | Connor, Clark & Lunn Investment… | 98.75K | -2.4% | $7.10M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 25 | Deutsche Bank Ag\ | 91.67K | +1.0% | $6.60M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 26 | Hrt Financial Lp | 84.07K | -57.6% | $6.05M | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 27 | Northern Trust Corp | 78.60K | +40.2% | $5.66M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 28 | Bank Of America Corp /De/ | 58.96K | +126.0% | $4.24M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 29 | Alyeska Investment Group, L.P. | 50.00K | New | $3.60M | 0.0% | New | 1 | SEC ↗ |
| 30 | LMR Partners LLP | 48.29K | New | $3.47M | 0.0% | New | 1 | SEC ↗ ×2 |
| 31 | Swiss National Bank | 47.90K | +50.2% | $3.45M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 32 | Renaissance Technologies ✦ | 41.78K | -75.8% | $3.01M | 0.0% | ▼ Trim | 8 | SEC ↗ |
| 33 | Balyasny Asset Management L.P. | 35.85K | -87.3% | $2.58M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 34 | UBS AM, a distinct business unit of… | 34.02K | +110.2% | $2.45M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 35 | Barclays Plc | 32.36K | +109.5% | $2.33M | 0.0% | ▲ Add | 2 | SEC ↗ ×3 |
| 36 | California State Teachers… | 28.68K | +97.5% | $2.06M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 37 | Citigroup Inc | 25.05K | -30.0% | $1.80M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 38 | Man Group plc | 19.45K | New | $1.40M | 0.0% | New | 1 | SEC ↗ |
| 39 | Legal & General Group Plc | 16.66K | +34.2% | $1.20M | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 40 | IMC-Chicago, LLC | 16.36K | New | $1.18M | 0.0% | New | 1 | SEC ↗ |
| 41 | Royal Bank Of Canada | 16.18K | +131.0% | $1.16M | 0.0% | ▲ Add | 2 | SEC ↗ ×4 |
| 42 | Healthcare Of Ontario Pension Plan… | 15.81K | New | $1.14M | 0.0% | New | 1 | SEC ↗ |
| 43 | Tudor Investment Corp Et Al | 14.98K | New | $1.08M | 0.0% | New | 1 | SEC ↗ |
| 44 | State Of Wisconsin Investment Board | 13.67K | +58.4% | $983,557 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 45 | Point72 Asset Management ✦ | 13.36K | -96.9% | $961,540 | 0.0% | ▼ Trim | 3 | SEC ↗ |
| 46 | T. Rowe Price ✦ | 11.28K | +8.7% | $812,000 | 0.0% | ▲ Add | 8 | SEC ↗ |
| 47 | Envestnet Asset Management Inc | 10.88K | +102.1% | $783,032 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 48 | Janus Henderson Group Plc | 10.73K | +32.5% | $771,093 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 49 | Peak6 Llc | 7.00K | New | $503,650 | 0.0% | New | 1 | SEC ↗ |
| 50 | Zurcher Kantonalbank (Zurich… | 6.70K | New | $481,705 | 0.0% | New | 1 | SEC ↗ |
| 51 | Bank of New York Mellon Corp | 6.60K | New | $474,686 | 0.0% | New | 1 | SEC ↗ ×2 |
| 52 | Group One Trading Llc | 5.95K | +310.8% | $428,031 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 53 | Simplex Trading, Llc | 5.72K | -73.9% | $411,697 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 54 | LPL Financial LLC | 4.55K | New | $327,368 | 0.0% | New | 1 | SEC ↗ |
| 55 | Sei Investments Co | 4.47K | -56.6% | $321,688 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 56 | Osaic Holdings, Inc. | 4.39K | -18.5% | $316,063 | 0.0% | ▼ Trim | 2 | SEC ↗ ×2 |
| 57 | Pictet Asset Management Holding SA | 3.72K | New | $267,510 | 0.0% | New | 1 | SEC ↗ |
| 58 | Victory Capital Management Inc | 3.13K | New | $224,988 | 0.0% | New | 1 | SEC ↗ |
| 59 | Raymond James Financial Inc | 2.95K | New | $212,468 | 0.0% | New | 1 | SEC ↗ ×2 |
| 60 | Allspring Global Investments… | 2.90K | New | $208,511 | 0.0% | New | 1 | SEC ↗ |
| 61 | Us Bancorp \De\ | 1.92K | +52.1% | $137,856 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 62 | Rhumbline Advisers | 600 | +500.0% | $43,170 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 63 | BNP Paribas Asset Management… | 397 | +123.0% | $28,564 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 64 | Wells Fargo & Company/Mn | 327 | +71.2% | $23,527 | 0.0% | ▲ Add | 2 | SEC ↗ ×2 |
| 65 | Jones Financial Companies Lllp | 300 | +175.2% | $20,598 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 66 | Cwm, Llc | 176 | -14.2% | $12,663 | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 67 | Danske Bank A/S | 2 | 0.0% | $144 | 0.0% | Held | 2 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Ameriprise Financial Inc | $9.84M | 0.0% |
| Alyeska Investment Group, L.P. | $3.60M | 0.0% |
| LMR Partners LLP | $3.47M | 0.0% |
| Man Group plc | $1.40M | 0.0% |
| IMC-Chicago, LLC | $1.18M | 0.0% |
| Healthcare Of Ontario Pension… | $1.14M | 0.0% |
| Tudor Investment Corp Et Al | $1.08M | 0.0% |
| Peak6 Llc | $503,650 | 0.0% |
| Zurcher Kantonalbank (Zurich… | $481,705 | 0.0% |
| Bank of New York Mellon Corp | $474,686 | 0.0% |
| LPL Financial LLC | $327,368 | 0.0% |
| Pictet Asset Management… | $267,510 | 0.0% |
Exited
| Norges Bank | $2.11M | was 0.0% |
| Cibc World Market Inc. | $561,563 | was 0.0% |
| Canada Pension Plan… | $16,912 | was 0.0% |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 1 holders, 13.40K shares, $964 reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Aug 18
Zalevsky Jonathan
Officer · 186 sh · $13,388
Aug 18
ROBIN HOWARD W
Officer, Director · 418 sh · $30,088
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology
Sep 28
SC 13G/A — Two Seas Capital LP
Aug 14
SC 13G/A — Two Seas Capital LP
Aug 14
SC 13G/A — BIOTECHNOLOGY VALUE FUND L P
Jul 31
SC 13G — VANGUARD CAPITAL MANAGEMENT LLC
Jul 29
SC 13G — BlackRock, Inc.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q1 2026 ·
Methodology ·
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