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Kratos Defense & Security Solutions, Inc.

KTOS
Exchange
Nasdaq
Industry
Guided Missiles & Space Vehicles & Parts
SEC CIK
0001069258

In the last 90 days, Kratos Defense & Security Solutions, Inc. insiders filed 0 open-market purchases and 17 sales; 631 institutions reported holding it in 13F filings for Q2 2026, worth $7.68B in total; ARK Invest is the only superinvestor holding it.

Holders of 5% or more of KTOS

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Kratos Defense & Security Solutions, Inc., largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of KTOS
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A10.10%18.9M shares−2.60 ppfrom 12.70%Apr 3, 20253 filingsJul 29, 2026SEC
Vanguard Capital Management LLC13G5.14%9.65M sharesNewApr 30, 20261 filingApr 30, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

26 Schedule 13D and 13G filings on Kratos Defense & Security Solutions, Inc., newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on KTOS
Filed (ET)FilerFormStakeChangeEvent dateFiling
Jul 29, 20263:19 PM ETBlackRock, Inc.13G/A10.10%18.9M shares−2.60 ppfrom 12.70%Jun 30, 2026SEC
Apr 30, 202611:15 AM ETVanguard Capital Management LLC13G5.14%9.65M sharesNewMar 31, 2026SEC
Mar 26, 20262:49 PM ETVanguard Group Inc13G/A0.00%0 shares−10.50 ppfrom 10.50%Below 5%Mar 13, 2026SEC
Mar 5, 20261:24 PM ETVanguard Group Inc13G/A10.50%17.9M shares+0.74 ppfrom 9.76%Feb 27, 2026SEC
Feb 9, 20266:45 AM ETState Street Corp13G4.90%8.19M shares−0.20 ppfrom 5.10%Below 5%Dec 31, 2025SEC
Jan 30, 20262:16 PM ETVanguard Group Inc13G/A9.76%16.5M shares−1.00 ppfrom 10.76%Dec 31, 2025SEC
Nov 10, 20258:37 AM ETState Street Corp13G5.10%8.53M shares−1.30 ppfrom 6.40%Sep 30, 2025SEC
Oct 17, 20256:13 PM ETBlackRock, Inc.13G/A12.70%21.5M shares−3.10 ppfrom 15.80%Sep 30, 2025SEC
May 13, 202511:33 AM ETState Street Corp13G6.40%9.82M shares–Mar 31, 2025SEC
Apr 7, 202511:51 AM ETVanguard Group Inc13G/A10.76%16.4M shares–Mar 31, 2025SEC
Apr 3, 20251:21 PM ETBlackRock, Inc.13G/A15.80%24.1M shares–Mar 31, 2025SEC
Oct 18, 2024State Street Corp13G/AOld format–––SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Jan 24, 20245:23 PM ETBlackRock Inc.13G/AOld format–––SEC
Jan 24, 2024State Street Corp13G/AOld format–––SEC
Feb 10, 2023ARK Investment Management LLCSuperinvestorARK Invest13G/AOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Jan 25, 202310:36 AM ETBlackRock Inc.13G/AOld format–––SEC
Feb 10, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2022ARK Investment Management LLCSuperinvestorARK Invest13GOld format–New–SEC
Feb 9, 2022FMR LLC13G/AOld format–––SEC
Feb 2, 20227:11 PM ETBlackRock Inc.13G/AOld format–––SEC
Feb 16, 2021State Street Corp13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 8, 2021FMR LLC13G/AOld format–––SEC
Jan 29, 20215:22 PM ETBlackRock Inc.13G/AOld format–––SEC

Form 144: proposed insider sales

3 notices from officers, directors and other affiliates planning to sell Kratos Defense & Security Solutions, Inc. shares, newest first.

Form 144 notices for KTOS
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Jun 21, 20234:59 PM ETMaria Cervantes De BurgreenOfficer1.20K$18.0KJun 21, 202310b5-1E*TRADE FINANCIAL CORPORATIONSEC
Jun 21, 20234:40 PM ETDeanna H LundOfficer · Director105.1K$1.58MJun 21, 202310b5-1E*TRADE FINANCIAL CORPORATIONSEC
Jun 16, 20235:37 PM ETMarie C MendozaOfficer1.00K$14.0KJun 16, 202310b5-1E*TRADE FINANCIAL CORPORATIONSEC