Kratos Defense & Security Solutions, Inc. (KTOS) Ownership

NASDAQ: KTOSTop holders, insider trades and short interest.

KTOS ownership summary

as of October 18, 2026
Institutions
85.6%
of shares outstanding
Insiders
1.29%
of shares outstanding
Shares outstanding
187.7M
Float
185.3M
shares available to trade
Short interest
6.00%
9.8M shares short
Days to cover
2.46
short interest down 2.6% vs prior month
  • Institutions 85.56%
  • Insiders 1.29%
  • Other investors 13.15%

KTOS top institutional holders

20 largest
Kratos Defense & Security Solutions, Inc. top institutional holders
#Holder% of sharesSharesValueChangeReported
1BlackRock Inc12.80%24.0M$971.5M−7.6M (−24.1%)June 30, 2026
2State Street Corp4.83%9.1M$366.4M+153,360 (+1.7%)June 30, 2026
3Vanguard Capital Management, LLC4.50%8.4M$341.5M+174,963 (+2.1%)June 30, 2026
4Vanguard Portfolio Management, LLC4.25%8.0M$322.8M−663,488 (−7.7%)June 30, 2026
5First Trust Advisors L.P.3.20%6.0M$243.2M+3.3M (+122.7%)June 30, 2026
6ARK Investment Management LLC2.49%4.7M$188.9M+1.2M (+33.8%)June 30, 2026
7Amvescap Plc.2.18%4.1M$165.2M−1.1M (−20.5%)June 30, 2026
8Geode Capital Management, LLC1.98%3.7M$150.0M−1.6M (−29.5%)June 30, 2026
9Hood River Capital Management LLC1.67%3.1M$126.8M+423,156 (+15.6%)June 30, 2026
10Van Eck Associates Corporation1.59%3.0M$120.4M−114,723 (−3.7%)June 30, 2026
11Dimensional Fund Advisors, Inc.1.41%2.6M$106.7M+45,111 (+1.7%)June 30, 2026
12Delaware Management Holdings Inc1.38%2.6M$105.0M−183,564 (−6.6%)June 30, 2026
13Artisan Partners Limited Partnership1.26%2.4M$95.4M+1.4M (+141.3%)June 30, 2026
14Wellington Management Company LLP1.20%2.3M$91.0M−343,972 (−13.3%)June 30, 2026
15AllianceBernstein L.P.1.19%2.2M$90.2M−191,122 (−7.9%)June 30, 2026
16Morgan Stanley - Brokerage Accounts1.18%2.2M$89.4M−301,429 (−12.0%)June 30, 2026
17MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.1.15%2.2M$87.4M−259,603 (−10.7%)June 30, 2026
18NORGES BANK1.01%1.9M$76.4M+508,672 (+36.8%)June 30, 2026
19Rovida Investment Management Ltd0.94%1.8M$71.7M—June 30, 2026
20Stephens Inv Mgmt Group LLC0.85%1.6M$64.8M+715,089 (+80.4%)June 30, 2026

Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 9 holders added 7.9M shares and 10 cut 12.3M.

KTOS top mutual fund and ETF holders

20 largest
Kratos Defense & Security Solutions, Inc. top fund holders
#Holder% of sharesSharesValueChangeReported
1iShares Core S&P Mid-Cap ETF3.56%6.7M$270.3M−2,388 (−0.0%)September 30, 2026
2First Trust RBA Amer Indl RenaisTM ETF3.49%6.6M$265.0M+3,785 (+0.1%)September 30, 2026
3Vanguard MStar Total Stk Mkt Idx Invest3.18%6.0M$241.2M−7,273 (−0.1%)August 31, 2026
4Vanguard Small Cap Index2.25%4.2M$170.7M−92,096 (−2.1%)September 30, 2026
5Stt Strt® SPDR® S&P® Arspc & Dfnc ETF1.90%3.6M$144.4M+7,454 (+0.2%)September 30, 2026
6VanEck Defense ETF A USD Acc1.55%2.9M$117.8M+2,475 (+0.1%)September 30, 2026
7Vanguard MStar Small Cap Growth Indx Inv1.25%2.4M$95.1M−123,456 (−5.0%)September 30, 2026
8ARK Autonomous Technology&Robotics ETF1.19%2.2M$90.3M—September 30, 2026
9iShares US Aerospace & Defense ETF0.94%1.8M$71.4M−3,020 (−0.2%)September 30, 2026
10ARK Innovation ETF0.84%1.6M$63.8M−123,432 (−7.2%)September 30, 2026
11Nomura Science and Technology C0.81%1.5M$61.4M—August 31, 2026
12Hood River Small-Cap Growth Instl0.76%1.4M$57.7M−40,908 (−2.8%)June 30, 2026
13State Street® SPDR® S&P MIDCAP 400® ETF0.74%1.4M$56.1M+16,639 (+1.2%)September 30, 2026
14Vanguard Explorer Inv0.74%1.4M$55.8M+153,289 (+12.5%)June 30, 2026
15BGF World Technology A20.58%1.1M$43.9M+2,234 (+0.2%)June 30, 2026
16iShares S&P Mid-Cap 400 Growth ETF0.58%1.1M$43.8M−1,156 (−0.1%)September 30, 2026
17Invesco Aerospace & Defense ETF0.57%1.1M$43.2M−366,723 (−25.6%)September 30, 2026
18Hartford Growth Opportunities Y0.55%1.0M$42.1M—August 31, 2026
19State Street SPDR Port S&P 400 Md CpETF0.53%992K$40.1M−1,392 (−0.1%)September 30, 2026
20ARK Space & Defense Innovation ETF0.51%948K$38.3M−24,624 (−2.5%)September 30, 2026

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

KTOS insider transactions

latest 20
Kratos Defense & Security Solutions, Inc. insider transactions
DateNameTransactionPriceSharesValue
2026-04-16Scot B JarvisSell$75.905,417$411,150
2026-04-15Marie MendozaSell$75.691,500$113,535
2026-04-15Phillip D CarraiSell$74.726,500$485,680
2026-04-08David M CarterSell$74.164,000$296,640
2026-04-01Deanna H LundSell$69.635,000$348,150
2026-04-01William A HoglundSell$71.1930,500$2.2M
2026-03-30Steven S FendleySell$69.597,000$487,130
2026-03-26Scot B JarvisSell$78.145,000$390,700
2026-03-26Stacey G RockSell$76.784,000$307,120
2026-03-16Marie MendozaSell$88.971,516$134,879
2026-03-16Scott I AndersonSell$89.1115,000$1.3M
2026-03-16Phillip D CarraiSell$89.076,500$578,955
2026-03-16De Burgreen Maria CervantesSell$89.296,270$559,848
2026-03-12Scot B JarvisSell$88.605,000$443,000
2026-03-06Stacey G RockSell$87.996,066$533,747
2026-03-05David M CarterSell$85.364,000$341,440
2026-03-02Deanna H LundSell$91.285,000$456,400
2026-03-02Thomas E Iv MillsSell$91.265,758$525,475
2026-02-26Scot B JarvisSell$88.005,000$440,000
2026-02-26Stacey G RockSell$90.284,000$361,120

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.

KTOS shares outstanding

Shares outstanding

Year-end shares outstanding, adjusted for splits.

Who owns KTOS

Institutional investors own 85.6% of Kratos Defense & Security Solutions's shares and insiders 1.29%. The largest holder is BlackRock Inc with 12.80% of the shares (24.0M), as of June 30, 2026. Among the top 20 institutions, 9 added shares and 10 reduced their stake in the latest filings. Short interest is 6.00% of the float, or 2.46 days of average trading volume. The share count rose 199.7% since 2014.

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

KTOS ownership FAQ

Who owns the most Kratos Defense & Security Solutions stock?

The largest shareholders of Kratos Defense & Security Solutions are BlackRock Inc (12.80%), State Street Corp (4.83%), Vanguard Capital Management, LLC (4.50%), Vanguard Portfolio Management, LLC (4.25%), First Trust Advisors L.P. (3.20%).

What percentage of Kratos Defense & Security Solutions is owned by institutions?

Institutions hold 85.6% of Kratos Defense & Security Solutions's shares outstanding; insiders hold 1.29%.

Which funds own Kratos Defense & Security Solutions?

The largest fund holders of Kratos Defense & Security Solutions are iShares Core S&P Mid-Cap ETF (3.56%), First Trust RBA Amer Indl RenaisTM ETF (3.49%), Vanguard MStar Total Stk Mkt Idx Invest (3.18%), Vanguard Small Cap Index (2.25%), Stt Strt® SPDR® S&P® Arspc & Dfnc ETF (1.90%).

What is Kratos Defense & Security Solutions's short interest?

9.8M shares of Kratos Defense & Security Solutions were sold short, 6.00% of the float; at the average daily volume it would take 2.46 days to cover.

Are insiders buying or selling Kratos Defense & Security Solutions?

Of the latest 20 reported insider transactions in Kratos Defense & Security Solutions (since February 26, 2026), 0 were purchases and 20 were sales.

How many shares of Kratos Defense & Security Solutions are outstanding?

Kratos Defense & Security Solutions has 187.7M shares outstanding, of which 185.3M are in the public float.

Aerospace & Defense: ownership