Nkarta, Inc. (NKTX) Ownership

NASDAQ: NKTXTop holders, insider trades and short interest.

NKTX ownership summary

as of October 18, 2026
Institutions
82.9%
of shares outstanding
Insiders
4.88%
of shares outstanding
Shares outstanding
71.6M
Float
60.6M
shares available to trade
Short interest
6.39%
3.7M shares short
Days to cover
5.80
short interest up 4.4% vs prior month
  • Institutions 82.90%
  • Insiders 4.88%
  • Other investors 12.23%

NKTX top institutional holders

20 largest
Nkarta, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1RA Capital Management, LLC15.09%10.8M$19.4M—June 30, 2026
2BlackRock Inc8.80%6.3M$11.3M+1.8M (+39.7%)June 30, 2026
3NEA Management Company, LLC4.98%3.6M$6.4M—June 30, 2026
4Samsara BioCapital, LLC4.90%3.5M$6.3M—June 30, 2026
5SR ONE CAPITAL MANAGEMENT, LP4.65%3.3M$6.0M—June 30, 2026
6GSK PLC4.40%3.2M$5.7M—June 30, 2026
7Monaco Asset Management3.31%2.4M$4.3M−148,532 (−5.9%)June 30, 2026
8Vanguard Capital Management, LLC3.11%2.2M$4.0M+214,994 (+10.7%)June 30, 2026
9Citadel Advisors Llc3.04%2.2M$3.9M+390,751 (+21.9%)June 30, 2026
10Two Sigma Investments LLC2.62%1.9M$3.4M−174,083 (−8.5%)June 30, 2026
11Wasatch Advisors LP2.20%1.6M$2.8M—June 30, 2026
12Acadian Asset Management LLC1.90%1.4M$2.4M+100,772 (+8.0%)June 30, 2026
13State Street Corp1.80%1.3M$2.3M+48,635 (+3.9%)June 30, 2026
14Geode Capital Management, LLC1.79%1.3M$2.3M+17,592 (+1.4%)June 30, 2026
15Renaissance Technologies Corp1.64%1.2M$2.1M−554,720 (−32.0%)June 30, 2026
16AQR Capital Management LLC1.47%1.1M$1.9M+458,525 (+77.0%)June 30, 2026
17Awm Investment Company Inc1.26%906K$1.6M—June 30, 2026
18Blackstone Inc1.04%747K$1.3M+747,044 (0.0%)June 30, 2026
19Marshall Wace Asset Management Ltd0.94%673K$1.2M+673,010 (0.0%)June 30, 2026
20Panagora Asset Management Inc0.81%583K$1.0M+299,039 (+105.2%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 10 holders added 4.7M shares and 3 cut 877K.

NKTX top mutual fund and ETF holders

20 largest
Nkarta, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1Vanguard MStar Total Stk Mkt Idx Invest2.19%1.6M$2.8M—August 31, 2026
2Wasatch Ultra Growth2.08%1.5M$2.7M—June 30, 2026
3iShares Russell 2000 ETF1.61%1.1M$2.1M−13,248 (−1.1%)September 30, 2026
4BSF Systematic US Eq Abs Ret A2 USD0.86%613K$1.1M+142,881 (+30.4%)December 31, 2025
5JPM Thmtcs Gentc Thrps C2 dist USD0.75%537K$966,987+6,027 (+1.1%)August 31, 2026
6Fidelity Small Cap Index0.68%490K$882,248+3,551 (+0.7%)July 31, 2026
7iShares Russell 2000 Value ETF0.57%407K$733,246+618 (+0.2%)September 30, 2026
8Fidelity Extended Market Index0.41%295K$531,805−1,588 (−0.5%)August 31, 2026
9BlackRock Advantage Small Cap Gr Instl0.38%270K$486,160+12,781 (+5.0%)August 31, 2026
10Vanguard Russell 2000 ETF0.36%256K$461,086+5,055 (+2.0%)August 31, 2026
11CREF Total Global Stock Account R30.34%246K$442,559−103,780 (−29.7%)July 31, 2026
12Dimensional US Small Cap ETF0.21%151K$272,311—September 30, 2026
13iShares Micro-Cap ETF0.20%143K$258,106−989 (−0.7%)September 30, 2026
14EA Bridgeway Ultra-Small Company Mkt ETF0.15%109K$195,350—September 30, 2026
15Schwab Small Cap Index0.15%108K$195,199—August 31, 2026
16Stt Strt SPDR® Russell2000 US SmCapETF0.15%107K$192,634+5,120 (+5.0%)August 31, 2026
17Invesco RAFI US 1500 Small-Mid ETF0.14%103K$185,819—September 30, 2026
18Avantis US Small Cap Equity ETF0.13%90K$162,481—September 30, 2026
19Fidelity Total Market Index0.12%87K$156,530+3,000 (+3.6%)August 31, 2026
20iShares Russell 2000 Small-Cap Idx Instl0.12%86K$155,095—August 31, 2026

Funds report holdings monthly or quarterly; dates differ by fund.

NKTX insider transactions

latest 2
Nkarta, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-01-15Nadir MahmoodSell$2.075,649$11,693
2026-01-15Paul J HastingsSell$2.0726,046$53,915

Reported trades by company officers, directors and other filers (including disclosures by members of Congress where EODHD lists them). "—" where the filing gives no share count.

NKTX shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns NKTX

Institutional investors own 82.9% of Nkarta's shares and insiders 4.88%. The largest holder is RA Capital Management, LLC with 15.09% of the shares (10.8M), as of June 30, 2026. Among the top 20 institutions, 10 added shares and 3 reduced their stake in the latest filings. Short interest is 6.39% of the float, or 5.80 days of average trading volume. The share count rose 724.3% since 2019.

Related: NKTX analyst forecast, NKTX key metrics. See the NKTX stock overview for the latest quote and news.

NKTX ownership FAQ

Who owns the most Nkarta stock?

The largest shareholders of Nkarta are RA Capital Management, LLC (15.09%), BlackRock Inc (8.80%), NEA Management Company, LLC (4.98%), Samsara BioCapital, LLC (4.90%), SR ONE CAPITAL MANAGEMENT, LP (4.65%).

What percentage of Nkarta is owned by institutions?

Institutions hold 82.9% of Nkarta's shares outstanding; insiders hold 4.88%.

Which funds own Nkarta?

The largest fund holders of Nkarta are Vanguard MStar Total Stk Mkt Idx Invest (2.19%), Wasatch Ultra Growth (2.08%), iShares Russell 2000 ETF (1.61%), BSF Systematic US Eq Abs Ret A2 USD (0.86%), JPM Thmtcs Gentc Thrps C2 dist USD (0.75%).

What is Nkarta's short interest?

3.7M shares of Nkarta were sold short, 6.39% of the float; at the average daily volume it would take 5.80 days to cover.

Are insiders buying or selling Nkarta?

Of the latest 2 reported insider transactions in Nkarta (since January 15, 2026), 0 were purchases and 2 were sales.

How many shares of Nkarta are outstanding?

Nkarta has 71.6M shares outstanding, of which 60.6M are in the public float.

Biotechnology: ownership