NKARTA INC NKTX
COM · Common Stock · CUSIP 65487U108
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersSouth San Francisco, CA
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 70.6m as of 2024-08-09, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $5.91. Options: 7 managers hold calls ($1.5m notional), 5 hold puts ($479.0k).
Trends to Q2 2024
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 105 |
| Q4 2022 | 121 |
| Q1 2023 | 101 |
| Q2 2023 | 98 |
| Q3 2023 | 86 |
| Q4 2023 | 95 |
| Q1 2024 | 116 |
| Q2 2024 | 113 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q4 2022 | 71 | 47 |
| Q1 2023 | 44 | 68 |
| Q2 2023 | 44 | 59 |
| Q3 2023 | 33 | 51 |
| Q4 2023 | 45 | 42 |
| Q1 2024 | 69 | 47 |
| Q2 2024 | 75 | 45 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2023 | $6.5k | $1.8k | 0.28 |
| Q4 2023 | $668.8k | $481.1k | 0.72 |
| Q1 2024 | $4.3m | $1.9m | 0.44 |
| Q2 2024 | $1.5m | $479.0k | 0.32 |
Biggest buyers
| CITADEL ADVISORS LLC | Added | +2.7m |
| BlackRock Inc. | Added | +1.2m |
| VANGUARD GROUP INC | Added | +990.1k |
| Commodore Capital LP | Added | +986.0k |
| STATE STREET CORP | Added | +453.3k |
| Alyeska Investment Group, L.P. | Added | +377.8k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +322.7k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +300.8k |
| MARSHALL WACE, LLP | Added | +254.1k |
| Cubist Systematic Strategies, LLC | New | +251.9k |
Biggest sellers
| EcoR1 Capital, LLC | Sold out | -2.0m |
| DEERFIELD MANAGEMENT COMPANY, L.P. | Reduced | -1.4m |
| Cormorant Asset Management, LP | Sold out | -1.4m |
| JANUS HENDERSON GROUP PLC | Sold out | -838.8k |
| T. Rowe Price Investment Management, Inc. | Reduced | -546.8k |
| Schonfeld Strategic Advisors LLC | Reduced | -331.6k |
| SUPERSTRING CAPITAL MANAGEMENT LP | Reduced | -313.2k |
| Soleus Capital Management, L.P. | Sold out | -300.0k |
| Parkman Healthcare Partners LLC | Sold out | -252.0k |
| MORGAN STANLEY | Reduced | -230.9k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $445.6k75.4k shares |
| JANE STREET GROUP, LLC | Reduced | $286.0k48.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $273.0k46.2k shares |
| CITADEL ADVISORS LLC | Reduced | $254.1k43.0k shares |
| WOLVERINE TRADING, LLC | New | $136.5k23.1k shares |
| GROUP ONE TRADING LLC | Reduced | $115.8k19.6k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | $167.3k28.3k shares |
| SIMPLEX TRADING, LLC | Reduced | $122.0k20.7k shares |
| GROUP ONE TRADING LLC | Reduced | $102.2k17.3k shares |
| CITADEL ADVISORS LLC | Reduced | $87.5k14.8k shares |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | Unchanged | $00 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
No one currently above 5% in the filings since 19 Dec 2024.
Fell to 5% or below in the last year: New Enterprise Associates 15, L.P. (4.9%, 2026-05-19), TANG CAPITAL MANAGEMENT LLC (2.1%, 2026-02-17), Samsara BioCapital, L.P. (4.9%, 2025-11-24), CITADEL ADVISORS LLC (4.1%, 2025-11-14)
Insider purchases and sales in Q2 2024
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q3 2022 | 0 | — | 4 | $1.2m | — |
| Q4 2022 | 0 | — | 1 | $11.8k | — |
| Q1 2023 | 0 | — | 6 | $42.3k | — |
| Q2 2023 | 0 | — | 6 | $17.4k | — |
| Q3 2023 | 0 | — | 1 | $2.4k | — |
| Q4 2023 | 0 | — | 0 | — | — |
| Q1 2024 | 2 | $50.0m | 5 | $371.8k | — |
| Q2 2024 | 0 | — | 5 | $17.8k | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2024-06-18 | HASTINGS PAUL J Chief Executive Officer, director | Sold | $9.9k1.8k shares |
| 2024-06-18 | Hager Alicia J. Chief Legal Officer | Sold | $4.1k727 shares |
| 2024-06-18 | Shook David Chief Medical Officer | Sold | $2.6k456 shares |
| 2024-06-18 | Trager James Chief Scientific Officer | Sold | $2.6k456 shares |
| 2024-06-18 | Brandenberger Ralph Chief Technical Officer | Sold | $1.3k229 shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2024
| Manager | Shares | Change |
|---|---|---|
| RA CAPITAL MANAGEMENT, L.P. 0.84% of their portfolio | 10.8m $63.9m | Unchanged |
| Boxer Capital, LLC 1.75% of their portfolio | 5.6m $33.1m | Unchanged |
| Commodore Capital LP 1.67% of their portfolio | 4.2m $24.5m | Added +986.0k |
| BlackRock Inc. 0.00% of their portfolio | 4.1m $24.0m | Added +1.2m |
| DEERFIELD MANAGEMENT COMPANY, L.P. 0.37% of their portfolio | 3.8m $22.5m | Reduced -1.4m |
| SAMSARA BIOCAPITAL, LLC 4.66% of their portfolio | 3.8m $22.3m | Unchanged |
| ADAGE CAPITAL PARTNERS GP, L.L.C. 0.04% of their portfolio | 3.6m $21.3m | Reduced -200.0k |
| NEA Management Company, LLC 1.59% of their portfolio | 3.6m $21.1m | Unchanged |
| SR One Capital Management, LP 6.17% of their portfolio | 3.3m $19.7m | Unchanged |
| CITADEL ADVISORS LLC 0.02% of their portfolio | 3.1m $18.5m | Added +2.7m |
| VANGUARD GROUP INC 0.00% of their portfolio | 3.0m $17.5m | Added +990.1k |
| WASATCH ADVISORS LP 0.04% of their portfolio | 1.4m $8.2m | Added +224.1k |
| AMERIPRISE FINANCIAL INC 0.00% of their portfolio | 1.2m $7.0m | Added +71.1k |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 1.1m $6.7m | Added +322.7k |
| STATE STREET CORP 0.00% of their portfolio | 1.1m $6.4m | Added +453.3k |
| Alyeska Investment Group, L.P. 0.03% of their portfolio | 915.4k $5.4m | Added +377.8k |
| RENAISSANCE TECHNOLOGIES LLC 0.01% of their portfolio | 912.9k $5.4m | Added +98.0k |
| SUPERSTRING CAPITAL MANAGEMENT LP 6.53% of their portfolio | 876.0k $5.2m | Reduced -313.2k |
| T. Rowe Price Investment Management, Inc. 0.00% of their portfolio | 808.6k $4.8m | Reduced -546.8k |
| ORBIMED ADVISORS LLC 0.09% of their portfolio | 800.0k $4.7m | Unchanged |
| Woodline Partners LP 0.04% of their portfolio | 628.1k $3.7m | Added +3.0k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 604.0k $3.6m | Reduced -86.3k |
| TANG CAPITAL MANAGEMENT LLC 0.33% of their portfolio | 550.0k $3.3m | Unchanged |
| TWO SIGMA INVESTMENTS, LP 0.01% of their portfolio | 441.7k $2.6m | Added +193.5k |
| MARSHALL WACE, LLP 0.00% of their portfolio | 440.0k $2.6m | Added +254.1k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 343.3k $2.0m | Added +26.1k |
| ACADIAN ASSET MANAGEMENT LLC 0.01% of their portfolio | 303.5k $1.8m | Added +300.8k |
| MORGAN STANLEY 0.00% of their portfolio | 301.9k $1.8m | Reduced -230.9k |
| MILLENNIUM MANAGEMENT LLC 0.00% of their portfolio | 281.7k $1.7m | Added +245.3k |
| Nuveen Asset Management, LLC 0.00% of their portfolio | 272.4k $1.6m | Added +39.3k |
| Cubist Systematic Strategies, LLC 0.03% of their portfolio | 251.9k $1.5m | New |
| Jefferies Financial Group Inc. 0.03% of their portfolio | 250.0k $1.5m | Added +200.0k |
| Octagon Capital Advisors LP 0.23% of their portfolio | 240.0k $1.4m | Unchanged |
| Blackstone Inc. 0.01% of their portfolio | 236.2k $1.4m | New |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 221.4k $1.3m | Added +168.8k |
| Affinity Asset Advisors, LLC 0.19% of their portfolio | 200.0k $1.2m | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 179.2k $1.1m | Added +82.0k |
| WELLINGTON MANAGEMENT GROUP LLP 0.00% of their portfolio | 173.3k $1.0m | Added +43.9k |
| Bank of New York Mellon Corp 0.00% of their portfolio | 172.2k $1.0m | Added +76.6k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.02% of their portfolio | 169.5k $1.0m | Unchanged |
| AQR CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 158.7k $938.1k | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.00% of their portfolio | 145.3k $858.9k | Added +55.9k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.00% of their portfolio | 140.0k $827.3k | Added +91.9k |
| FEDERATED HERMES, INC. 0.00% of their portfolio | 135.7k $802.3k | Added +135.3k |
| DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio | 132.3k $781.9k | Added +35.6k |
| D. E. Shaw & Co., Inc. 0.00% of their portfolio | 117.1k $691.9k | New |
| BANK OF AMERICA CORP /DE/ 0.00% of their portfolio | 115.0k $679.7k | Added +74.6k |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 108.4k $640.5k | Reduced -13.7k |
| BARCLAYS PLC 0.00% of their portfolio | 89.0k $525.7k | Added +49.8k |
| RHUMBLINE ADVISERS 0.00% of their portfolio | 84.0k $496.5k | Added +33.1k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 80.7k $476.9k | Added +13.9k |
| STIFEL FINANCIAL CORP 0.00% of their portfolio | 78.4k $463.4k | Reduced -15.5k |
| UBS Group AG 0.00% of their portfolio | 72.9k $430.9k | Added +41.4k |
| AMERICAN CENTURY COMPANIES INC 0.00% of their portfolio | 72.2k $426.7k | Added +24.0k |
| Schonfeld Strategic Advisors LLC 0.00% of their portfolio | 68.5k $404.9k | Reduced -331.6k |
| FMR LLC 0.00% of their portfolio | 67.5k $399.2k | Added +2.6k |
| Jump Financial, LLC 0.01% of their portfolio | 67.2k $397.2k | New |
| CITIGROUP INC 0.00% of their portfolio | 52.6k $311.1k | Added +3.3k |
| PRUDENTIAL FINANCIAL INC 0.00% of their portfolio | 44.1k $260.9k | New |
| Simplicity Wealth,LLC 0.01% of their portfolio | 37.5k $221.5k | Added +21.7k |
| Bleakley Financial Group, LLC 0.01% of their portfolio | 37.5k $221.5k | Added +21.7k |
| Verition Fund Management LLC 0.00% of their portfolio | 35.3k $208.6k | New |
| MetLife Investment Management, LLC 0.00% of their portfolio | 31.2k $184.4k | Added +15.2k |
| Aberdeen Group plc 0.00% of their portfolio | 29.0k $171.3k | Unchanged |
| Corebridge Financial, Inc. 0.00% of their portfolio | 28.5k $168.2k | First filing |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 23.4k $138.6k | Added +12.6k |
| Alpine Global Management, LLC 0.02% of their portfolio | 23.2k $136.9k | New |
| Y-Intercept (Hong Kong) Ltd 0.01% of their portfolio | 20.9k $123.4k | New |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE 0.00% of their portfolio | 20.7k $122.4k | Added +10.0k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 18.5k $109.3k | Reduced -17.9k |
| VOYA INVESTMENT MANAGEMENT LLC 0.00% of their portfolio | 18.0k $106.3k | New |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 17.5k $103.2k | Reduced -2.5k |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.00% of their portfolio | 16.9k $101.0k | New |
| UPTICK PARTNERS, LLC 0.13% of their portfolio | 15.2k $164.3k | Unchanged |
| Bayesian Capital Management, LP 0.01% of their portfolio | 15.0k $88.5k | New |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.00% of their portfolio | 14.6k $86.5k | First filing |
| TWO SIGMA ADVISERS, LP 0.00% of their portfolio | 14.6k $86.3k | New |
| Vanguard Personalized Indexing Management, LLC 0.00% of their portfolio | 14.4k $85.1k | Added +425 |
| Mariner, LLC 0.00% of their portfolio | 13.6k $80.2k | Added +160 |
| LEVEL FOUR ADVISORY SERVICES, LLC 0.00% of their portfolio | 12.0k $70.9k | New |
| Forefront Analytics, LLC 0.03% of their portfolio | 11.8k $69.9k | New |
| Catalina Capital Group, LLC 0.03% of their portfolio | 11.6k $68.7k | Reduced -1.9k |
| NEW YORK STATE COMMON RETIREMENT FUND 0.00% of their portfolio | 8.5k $50.0k | Added +18 |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 7.7k $45.0k | New |
| Erste Asset Management GmbH 0.00% of their portfolio | 7.2k $42.2k | Unchanged |
| Ameritas Investment Partners, Inc. 0.00% of their portfolio | 5.2k $30.6k | Added +2.8k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 5.0k $29.0k | Added +4.3k |
| GAMMA Investing LLC 0.00% of their portfolio | 4.7k $27.9k | Added +4.5k |
| CWM, LLC 0.00% of their portfolio | 4.6k $27.0k | Added +1.3k |
| Legal & General Group Plc 0.00% of their portfolio | 4.6k $27.0k | Added +2.2k |
| MEEDER ASSET MANAGEMENT INC 0.00% of their portfolio | 4.5k $26.4k | New |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.00% of their portfolio | 3.8k $22.7k | Added +794 |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 3.2k $19.1k | Added +403 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 3.0k $17.8k | Added +672 |
| Russell Investments Group, Ltd. 0.00% of their portfolio | 2.4k $14.3k | Added +2.4k |
| AMALGAMATED BANK 0.00% of their portfolio | 1.1k $7.0k | Unchanged |
| Fortitude Family Office, LLC 0.00% of their portfolio | 1.1k $6.3k | Reduced -307 |
| Founders Capital Management 0.00% of their portfolio | 1.0k $5.9k | Unchanged |
| Red Tortoise LLC 0.00% of their portfolio | 801 $4.7k | Unchanged |
| CIBC Private Wealth Group LLC 0.00% of their portfolio | 344 $1.8k | New |