KRATOS DEFENSE & SECURITY (KTOS) Institutional Shareholders
KRATOS DEFENSE & SECURITY (KTOS) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $11.03B in KTOS holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of KTOS tracked by InsiderSet, reporting ownership valued at approximately $2.23B in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $1.48B, representing an estimated loss of -33.91% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 52% of the total disclosed KTOS value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., State Street Corp, Vanguard Portfolio Management Llc, and several other long-term asset managers with concentrated positions in KRATOS DEFENSE & SECURITY (KTOS).
This page ranks the largest institutional KTOS shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
657
Total Reported Value
$11.03B
Largest Holder
Blackrock, Inc.
Largest Position
$2.23B
Insider Transactions (90d)
39
Latest Filing Quarter
Q2 2026
New Institutional Positions
62
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.04% | 31,663,184 | $2,232,571,094 | $1,475,504,374 | -$757,066,720 | -33.91% | |
| State Street Corp | 0.02% | 8,911,499 | $628,349,794 | $415,275,853 | -$213,073,941 | -33.91% | |
| Vanguard Portfolio Management Llc | 0.03% | 8,650,496 | $609,946,473 | $403,113,114 | -$206,833,359 | -33.91% | |
| Vanguard Capital Management Llc | 0.01% | 8,274,730 | $583,451,212 | $385,602,418 | -$197,848,794 | -33.91% | |
| Geode Capital Management, Llc | 0.02% | 5,264,282 | $371,246,795 | $245,315,541 | -$125,931,254 | -33.92% | |
| Invesco Ltd. | 0.06% | 5,137,574 | $362,250,343 | $239,410,948 | -$122,839,395 | -33.91% | |
| Franklin Resources Inc | 0.07% | 3,977,702 | $280,467,777 | $185,360,913 | -$95,106,864 | -33.91% | |
| ARK Invest | Cathie Wood | 1.91% | 3,491,194 | $246,164,080 | $162,689,640 | -$83,474,440 | -33.91% |
| Nomura Asset Management International Inc. | 0.34% | 2,782,153 | $196,170,000 | $129,648,330 | -$66,521,670 | -33.91% | |
| Hood River Capital Management Llc | 1.92% | 2,714,571 | $191,404,401 | $126,499,009 | -$64,905,392 | -33.91% | |
| First Trust Advisors Lp | 0.14% | 2,701,765 | $190,501,450 | $125,902,249 | -$64,599,201 | -33.91% | |
| Jericho Capital Asset Management L.P. | 2.76% | 2,649,578 | $186,821,746 | $123,470,335 | -$63,351,411 | -33.91% | |
| Alliancebernstein L.P. | 0.06% | 2,421,568 | $183,821,227 | $112,845,069 | -$70,976,158 | -38.61% | |
| Wellington Management Group Llp | 0.03% | 2,595,000 | $182,973,450 | $120,927,000 | -$62,046,450 | -33.91% | |
| Dimensional Fund Advisors Lp | 0.04% | 2,594,732 | $182,908,337 | $120,914,511 | -$61,993,826 | -33.89% | |
| Morgan Stanley | 0.01% | 2,512,602 | $177,163,626 | $117,087,253 | -$60,076,373 | -33.91% | |
| Mirae Asset Global Etfs Holdings Ltd. | 0.23% | 2,422,695 | $170,824,224 | $112,897,587 | -$57,926,637 | -33.91% | |
| Voya Investment Management Llc | 0.16% | 2,193,499 | $154,663,745 | $102,217,053 | -$52,446,692 | -33.91% | |
| Northern Trust Corp | 0.02% | 2,126,234 | $149,920,760 | $99,082,504 | -$50,838,256 | -33.91% | |
| Rovida Investment Management Ltd | 15.68% | 1,773,655 | $125,024,941 | $82,652,323 | -$42,372,618 | -33.89% | |
| Charles Schwab Investment Management Inc | 0.02% | 1,586,861 | $111,889,569 | $73,947,723 | -$37,941,846 | -33.91% | |
| Westfield Capital Management Co Lp | 0.46% | 1,563,146 | $110,217,424 | $72,842,604 | -$37,374,820 | -33.91% | |
| Clearbridge Investments, Llc | 0.09% | 1,539,388 | $108,542,266 | $71,735,481 | -$36,806,785 | -33.91% | |
| Bank Of New York Mellon Corp | 0.02% | 1,515,997 | $106,892,914 | $70,645,460 | -$36,247,454 | -33.91% | |
| Fmr Llc | 0.01% | 1,461,958 | $103,082,674 | $68,127,243 | -$34,955,431 | -33.91% | |
| Goldman Sachs Group Inc | 0.01% | 1,461,355 | $103,040,115 | $68,099,143 | -$34,940,972 | -33.91% | |
| Vanguard Fiduciary Trust Co | 0.02% | 1,282,442 | $90,424,985 | $59,761,797 | -$30,663,188 | -33.91% | |
| Ameriprise Financial Inc | 0.02% | 1,241,144 | $87,510,794 | $57,837,310 | -$29,673,484 | -33.91% | |
| Amova Asset Management Americas, Inc. | 1.14% | 1,144,337 | $80,664,315 | $53,326,104 | -$27,338,211 | -33.89% | |
| Stephens Investment Management Group Llc | 0.86% | 1,604,024 | $79,976,637 | $74,747,518 | -$5,229,119 | -6.54% | |
| Ubs Group Ag | 0.01% | 1,081,427 | $76,251,418 | $50,394,498 | -$25,856,920 | -33.91% | |
| American Capital Management Inc | 4.06% | 1,071,908 | $75,580,233 | $49,950,913 | -$25,629,320 | -33.91% | |
| Principal Financial Group Inc | 0.04% | 1,056,872 | $74,520,045 | $49,250,235 | -$25,269,810 | -33.91% | |
| Sumitomo Mitsui Trust Group, Inc. | 0.04% | 1,425,509 | $71,075,879 | $66,428,719 | -$4,647,160 | -6.54% | |
| Artisan Partners Limited Partnership | 0.11% | 978,051 | $68,962,376 | $45,577,177 | -$23,385,199 | -33.91% | |
| Nuveen, Llc | 0.02% | 880,572 | $62,089,132 | $41,034,655 | -$21,054,477 | -33.91% | |
| Emerald Advisers, Llc | 1.87% | 835,929 | $58,941,354 | $38,954,291 | -$19,987,063 | -33.91% | |
| Raymond James Financial Inc | 0.02% | 833,341 | $58,758,871 | $38,833,691 | -$19,925,180 | -33.91% | |
| Mercer Global Advisors Inc | 0.09% | 815,062 | $57,470,022 | $37,981,889 | -$19,488,133 | -33.91% | |
| Zimmer Partners, Lp | 1.35% | 783,148 | $55,219,765 | $36,494,697 | -$18,725,068 | -33.91% | |
| Federated Hermes, Inc. | 0.08% | 729,208 | $51,416,456 | $33,981,093 | -$17,435,363 | -33.91% | |
| Bamco Inc | 0.15% | 715,395 | $50,442,501 | $33,337,407 | -$17,105,094 | -33.91% | |
| Alyeska Investment Group, L.P. | 0.13% | 643,176 | $45,350,340 | $29,972,002 | -$15,378,338 | -33.91% | |
| Ghisallo Capital Management Llc | 1.17% | 600,000 | $42,306,000 | $27,960,000 | -$14,346,000 | -33.91% | |
| Squarepoint Ops Llc | 0.09% | 578,026 | $40,756,613 | $26,936,012 | -$13,820,601 | -33.91% | |
| Sei Investments Co | 0.04% | 570,631 | $40,233,757 | $26,591,405 | -$13,642,352 | -33.91% | |
| Susquehanna International Group, Llp | 0.05% | 557,827 | $39,332,382 | $25,994,738 | -$13,337,644 | -33.91% | |
| Allspring Global Investments Holdings, Llc | 0.07% | 575,823 | $38,983,217 | $26,833,352 | -$12,149,865 | -31.17% | |
| Rhumbline Advisers | 0.03% | 530,185 | $37,383,316 | $24,706,621 | -$12,676,695 | -33.91% | |
| Citadel Advisors Llc | 0.03% | 527,313 | $37,180,840 | $24,572,786 | -$12,608,054 | -33.91% |
Frequently asked questions about KTOS
Who owns the most KTOS stock?
The largest holders of KTOS are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for KRATOS DEFENSE & SECURITY (KTOS).
Is KTOS widely held by superinvestors?
Many widely followed stocks like KTOS appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly KTOS is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.