Who owns KTOS (KTOS)
Which tracked institutional funds hold KTOS, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See KTOS company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
150 tracked funds added or opened KTOS while 180 trimmed or exited it between 2025-Q4 and 2026-Q1 — the tape is split. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
KTOS’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.0pp gap the other way — the median holder sizes KTOS more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in KTOS divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 711 tracked filers holding KTOS, 439 increased or opened the position and 292 reduced or closed it; over the same quarter, open-market insider Form 4 buying and selling roughly offset.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in KTOS between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 45
- VANGUARD PORTFOLIO MANAGEMENT LLC$610M
- VANGUARD CAPITAL MANAGEMENT LLC$583M
- Jericho Capital Asset Management L.P.$187M
- VANGUARD FIDUCIARY TRUST CO$90M
- BOOTHBAY FUND MANAGEMENT, LLC$21M
- Laurion Capital Management LP$16M
Full exits 34
- VANGUARD GROUP INC$1.2B
- FengHe Fund Management Pte. Ltd.$35M
- GARNET EQUITY CAPITAL HOLDINGS, INC.$21M
- Weiss Asset Management LP$19M
- JUPITER ASSET MANAGEMENT LTD$10M
- First Eagle Investment Management, LLC$10M
Largest adds
- WELLINGTON MANAGEMENT GROUP LLP$154M
- Invesco Ltd.$151M
- PRICE T ROWE ASSOCIATES INC /MD/$96M
- T. Rowe Price Investment Management, Inc.$53M
- VOYA INVESTMENT MANAGEMENT LLC$50M
- Zimmer Partners, LP$48M
Largest trims
- BlackRock, Inc.$245M
- NORGES BANK$98M
- MORGAN STANLEY$74M
- AMERIPRISE FINANCIAL INC$70M
- AMERICAN CAPITAL MANAGEMENT INC$48M
- BAMCO INC /NY/$41M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. trimmed | 27,034,506 | $1.9B | 15.9% | 2026-Q1 |
| STATE STREET CORP added | 8,911,499 | $628M | 5.2% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 8,650,496 | $610M | 5.1% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 8,274,730 | $583M | 4.9% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 5,264,282 | $371M | 3.1% | 2026-Q1 |
| Invesco Ltd. added | 5,050,994 | $356M | 3.0% | 2026-Q1 |
| FRANKLIN RESOURCES INC trimmed | 3,977,702 | $280M | 2.3% | 2026-Q1 |
| ARK Investment Management LLC added | 3,491,194 | $246M | 2.1% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP added | 3,093,333 | $218M | 1.8% | 2026-Q1 |
| NOMURA ASSET MANAGEMENT INTERNATIONAL INC. added | 2,782,153 | $196M | 1.6% | 2026-Q1 |
| Hood River Capital Management LLC trimmed | 2,714,571 | $191M | 1.6% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 2,701,765 | $191M | 1.6% | 2026-Q1 |
| Jericho Capital Asset Management L.P. new | 2,649,578 | $187M | 1.6% | 2026-Q1 |
| ALLIANCEBERNSTEIN L.P. trimmed | 2,421,568 | $184M | 1.5% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 2,595,000 | $183M | 1.5% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 2,594,732 | $183M | 1.5% | 2026-Q1 |
| MORGAN STANLEY trimmed | 2,512,602 | $177M | 1.5% | 2026-Q1 |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. added | 2,422,695 | $171M | 1.4% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC added | 2,193,499 | $155M | 1.3% | 2026-Q1 |
| PRICE T ROWE ASSOCIATES INC /MD/ added | 2,134,555 | $151M | 1.3% | 2026-Q1 |
| NORTHERN TRUST CORP added | 2,126,234 | $150M | 1.3% | 2026-Q1 |
| Rovida Investment Management Ltd | 1,773,655 | $125M | 1.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,586,861 | $112M | 0.9% | 2026-Q1 |
| WESTFIELD CAPITAL MANAGEMENT CO LP added | 1,563,146 | $110M | 0.9% | 2026-Q1 |
| Clearbridge Investments, LLC added | 1,539,388 | $109M | 0.9% | 2026-Q1 |
| Bank of New York Mellon Corp added | 1,515,997 | $107M | 0.9% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 1,461,355 | $103M | 0.9% | 2026-Q1 |
| FMR LLC trimmed | 1,451,372 | $102M | 0.9% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 1,282,442 | $90M | 0.8% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 1,241,144 | $88M | 0.7% | 2026-Q1 |
| Sumitomo Mitsui Trust Group, Inc. trimmed | 1,144,337 | $81M | 0.7% | 2026-Q1 |
| Amova Asset Management Americas, Inc. trimmed | 1,144,337 | $81M | 0.7% | 2026-Q1 |
| UBS Group AG trimmed | 1,081,427 | $76M | 0.6% | 2026-Q1 |
| AMERICAN CAPITAL MANAGEMENT INC trimmed | 1,071,908 | $76M | 0.6% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 1,056,872 | $75M | 0.6% | 2026-Q1 |
| Artisan Partners Limited Partnership added | 978,051 | $69M | 0.6% | 2026-Q1 |
| JPMORGAN CHASE & CO trimmed | 1,019,437 | $67M | 0.6% | 2026-Q1 |
| Stephens Investment Management Group LLC trimmed | 888,935 | $63M | 0.5% | 2026-Q1 |
| Nuveen, LLC added | 880,572 | $62M | 0.5% | 2026-Q1 |
| EMERALD ADVISERS, LLC trimmed | 835,929 | $59M | 0.5% | 2026-Q1 |
| RAYMOND JAMES FINANCIAL INC added | 833,341 | $59M | 0.5% | 2026-Q1 |
| MERCER GLOBAL ADVISORS INC /ADV added | 815,062 | $57M | 0.5% | 2026-Q1 |
| Zimmer Partners, LP added | 783,148 | $55M | 0.5% | 2026-Q1 |
| T. Rowe Price Investment Management, Inc. added | 771,540 | $54M | 0.5% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 729,208 | $51M | 0.4% | 2026-Q1 |
| BAMCO INC /NY/ trimmed | 715,395 | $50M | 0.4% | 2026-Q1 |
| Alyeska Investment Group, L.P. added | 643,176 | $45M | 0.4% | 2026-Q1 |
| Ghisallo Capital Management LLC added | 600,000 | $42M | 0.4% | 2026-Q1 |
| Squarepoint Ops LLC added | 578,026 | $41M | 0.3% | 2026-Q1 |
| SEI INVESTMENTS CO added | 570,631 | $40M | 0.3% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP added | 557,827 | $39M | 0.3% | 2026-Q1 |
| Allspring Global Investments Holdings, LLC added | 575,823 | $39M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 530,185 | $37M | 0.3% | 2026-Q1 |
| LORD, ABBETT & CO. LLC trimmed | 529,022 | $37M | 0.3% | 2026-Q1 |
| CITADEL ADVISORS LLC added | 527,313 | $37M | 0.3% | 2026-Q1 |
| EMERALD MUTUAL FUND ADVISERS TRUST trimmed | 510,656 | $36M | 0.3% | 2026-Q1 |
| WESTWOOD HOLDINGS GROUP INC added | 478,634 | $34M | 0.3% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 458,416 | $32M | 0.3% | 2026-Q1 |
| Chevy Chase Trust Holdings, LLC added | 404,210 | $29M | 0.2% | 2026-Q1 |
| Nicholas Investment Partners, LP trimmed | 390,924 | $28M | 0.2% | 2026-Q1 |
| LOOMIS SAYLES & CO L P trimmed | 382,466 | $27M | 0.2% | 2026-Q1 |
| STIFEL FINANCIAL CORP added | 370,979 | $26M | 0.2% | 2026-Q1 |
| Empowered Funds, LLC added | 366,154 | $26M | 0.2% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND added | 354,669 | $25M | 0.2% | 2026-Q1 |
| NEUBERGER BERMAN GROUP LLC added | 351,973 | $25M | 0.2% | 2026-Q1 |
| LPL Financial LLC added | 341,123 | $24M | 0.2% | 2026-Q1 |
| Swiss National Bank added | 334,000 | $24M | 0.2% | 2026-Q1 |
| Vident Advisory, LLC added | 332,896 | $23M | 0.2% | 2026-Q1 |
| Driehaus Capital Management LLC trimmed | 329,953 | $23M | 0.2% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed | 327,514 | $23M | 0.2% | 2026-Q1 |
| TimesSquare Capital Management, LLC added | 318,392 | $22M | 0.2% | 2026-Q1 |
| California Public Employees Retirement System added | 316,760 | $22M | 0.2% | 2026-Q1 |
| Daiwa Securities Group Inc. added | 309,563 | $22M | 0.2% | 2026-Q1 |
| STEPHENS INC /AR/ trimmed | 304,359 | $21M | 0.2% | 2026-Q1 |
| BOOTHBAY FUND MANAGEMENT, LLC added | 290,936 | $21M | 0.2% | 2026-Q1 |
| DEUTSCHE BANK AG\ added | 290,421 | $20M | 0.2% | 2026-Q1 |
| SAPIENT CAPITAL LLC trimmed | 279,416 | $20M | 0.2% | 2026-Q1 |
| BAILLIE GIFFORD & CO trimmed | 267,563 | $19M | 0.2% | 2026-Q1 |
| Retirement Systems of Alabama added | 266,513 | $19M | 0.2% | 2026-Q1 |
| Portolan Capital Management, LLC trimmed | 259,811 | $18M | 0.2% | 2026-Q1 |
| Legal & General Group Plc trimmed | 256,877 | $18M | 0.2% | 2026-Q1 |
| Laurion Capital Management LP trimmed | 225,000 | $16M | 0.1% | 2026-Q1 |
| Champlain Investment Partners, LLC new | 220,402 | $16M | 0.1% | 2026-Q1 |
| PARADIGM CAPITAL MANAGEMENT INC/NY | 215,500 | $15M | 0.1% | 2026-Q1 |
| Point72 Asset Management, L.P. added | 213,500 | $15M | 0.1% | 2026-Q1 |
| LBP AM SA added | 207,815 | $15M | 0.1% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 207,001 | $15M | 0.1% | 2026-Q1 |
| WCM INVESTMENT MANAGEMENT, LLC trimmed | 221,869 | $14M | 0.1% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL trimmed | 203,532 | $14M | 0.1% | 2026-Q1 |
| GILDER GAGNON HOWE & CO LLC trimmed | 200,017 | $14M | 0.1% | 2026-Q1 |
| Burkehill Global Management, LP trimmed | 200,000 | $14M | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 16,250,590 | $1.2B | 10.3% | 2025-Q4 stale |
| MACQUARIE GROUP LTD added | 1,113,933 | $102M | 0.8% | 2025-Q3 stale |
| Rovida Advisors Inc. | 1,773,655 | $82M | 0.7% | 2025-Q2 stale |
| FengHe Fund Management Pte. Ltd. new | 464,900 | $35M | 0.3% | 2025-Q4 stale |
| PUBLIC SECTOR PENSION INVESTMENT BOARD added | 566,991 | $26M | 0.2% | 2025-Q2 stale |
| GARNET EQUITY CAPITAL HOLDINGS, INC. trimmed | 275,500 | $21M | 0.2% | 2025-Q4 stale |
| Weiss Asset Management LP new | 249,546 | $19M | 0.2% | 2025-Q4 stale |
| COOPER CREEK PARTNERS MANAGEMENT LLC trimmed | 595,526 | $18M | 0.1% | 2025-Q1 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND new | 367,518 | $17M | 0.1% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.