Kratos Defense & Security Solutions, Inc.
MX ˙ BMV ˙ US50077B2079
SecurityMX:KTOS / Kratos Defense & Security Solutions, Inc.
InstitutionJanus Henderson Group Plc
Latest Disclosed Ownership76,158 shares
Latest Disclosed Value $ 5,369,139
Janus Henderson Group Plc reports 3.68% increase in ownership of KTOS / Kratos Defense & Security Solutions, Inc.

On May 18, 2026 - Janus Henderson Group Plc filed a 13F-HR/A form disclosing ownership of 76,158 shares of Kratos Defense & Security Solutions, Inc. (MX:KTOS) valued at $5,369,139 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 73,458 shares of Kratos Defense & Security Solutions, Inc.. This represents a change in shares of 3.68% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-18 2026-03-31 13F/A-1 KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 76,158 2,700 3.68 5,369 -3.68 0.0009
2026-05-15 2026-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 76,158 2,700 5,369 0.0010
2026-02-17 2025-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 73,458 0 0.00 5,575 -16.95 0.0025
2025-11-14 2025-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 73,458 -141,477 -65.82 6,712 -32.72 0.0031
2025-08-14 2025-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 214,935 143,500 200.88 9,976 355.32 0.0049
2025-05-15 2025-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 71,435 0 0.00 2,192 16.30 0.0012
2025-02-14 2024-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 71,435 0 0.00 1,885 13.22 0.0010
2024-11-14 2024-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 71,435 0 0.00 1,664 16.45 0.0009
2024-08-14 2024-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 71,435 -5,654 -7.33 1,429 0.92 0.0008
2024-05-15 2024-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 77,089 21,502 38.68 1,416 25.53 0.0008
2024-02-14 2023-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 55,587 -95 -0.17 1,128 34.93 0.0007
2023-11-14 2023-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 55,682 7 0.01 836 4.76 0.0005
2023-08-14 2023-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 55,675 -59 -0.11 798 6.26 0.0005
2023-05-15 2023-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 55,734 30,657 122.25 751 191.09 0.0005
2023-02-14 2022-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 25,077 0 0.00 259 1.57 0.0002
2023-01-13 2022-09-30 13F/A-1 KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 25,077 44 0.18 254 -26.80 0.0002
2022-11-14 2022-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 25,077 44 254 0.0001
2022-08-15 2022-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 25,033 -32 -0.13 347 -32.36 0.0002
2022-05-16 2022-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 25,065 2 0.01 513 5.56 0.0002
2022-02-14 2021-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 25,063 12,603 101.15 486 74.82 0.0002
2021-11-16 2021-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 12,460 12,460 278 0.0001
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.