Kratos Defense & Security Solutions, Inc.
MX ˙ BMV ˙ US50077B2079
SecurityMX:KTOS / Kratos Defense & Security Solutions, Inc.
InstitutionFred Alger Management, Llc
Latest Disclosed Ownership116,793 shares
Latest Disclosed Value $ 8,235,074
Fred Alger Management, Llc reports 50.36% decrease in ownership of KTOS / Kratos Defense & Security Solutions, Inc.

On May 15, 2026 - Fred Alger Management, Llc filed a 13F-HR form disclosing ownership of 116,793 shares of Kratos Defense & Security Solutions, Inc. (MX:KTOS) valued at $8,235,074 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 235,285 shares of Kratos Defense & Security Solutions, Inc.. This represents a change in shares of -50.36% 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)
2026-05-15 2026-03-31 13F Kratos Defense & Security Solutions Equity 50077B207 116,793 -118,492 -50.36 8,235 -53.89 0.0230
2026-02-17 2025-12-31 13F Kratos Defense & Security Solutions Equity 50077B207 235,285 -19,932 -7.81 17,860 -23.41 0.0701
2025-11-14 2025-09-30 13F Kratos Defense & Security Solutions Equity 50077B207 255,217 -156,297 -37.98 23,319 22.00 0.0908
2025-08-14 2025-06-30 13F Kratos Defense & Security Solutions Equity 50077B207 411,514 -318,171 -43.60 19,115 -11.77 0.0856
2025-05-16 2025-03-31 13F Kratos Defense & Security Solutions Equity 50077B207 729,685 -202,970 -21.76 21,664 -11.95 0.1234
2025-02-14 2024-12-31 13F Kratos Defense & Security Solutions Equity 50077B207 932,655 -135,511 -12.69 24,603 -1.15 0.1172
2024-11-14 2024-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,068,166 -51,080 -4.56 24,888 11.13 0.1206
2024-08-14 2024-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,119,246 -60,587 -5.14 22,396 3.28 0.1089
2024-05-15 2024-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,179,833 -119,017 -9.16 21,685 -17.71 0.1075
2024-02-14 2023-12-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,298,850 280,012 27.48 26,354 72.22 0.1422
2023-11-14 2023-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,018,838 -29,934 -2.85 15,303 1.75 0.0811
2023-11-14 2023-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,018,838 15,303
2023-08-14 2023-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,048,772 -52,928 -4.80 15,039 1.27 0.0768
2023-05-16 2023-03-31 13F/A-1 KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,101,700 -13,139 -1.18 14,851 29.07 0.0794
2023-05-15 2023-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,101,700 -13,139 14,851 0.0736
2023-02-14 2022-12-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,114,839 -89,659 -7.44 11,505 -5.99 0.0624
2022-11-15 2022-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,204,498 -39,660 -3.19 12,238 -29.13 0.0620
2022-08-15 2022-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,244,158 142,879 12.97 17,268 -23.44 0.0806
2022-05-16 2022-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,101,279 431,480 64.42 22,554 73.57 0.0721
2022-02-14 2021-12-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 669,799 17,355 2.66 12,994 -10.73 0.0326
2021-11-15 2021-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 652,444 5,516 0.85 14,556 -21.02 0.0347
2021-08-16 2021-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 646,928 -1,220,464 -65.36 18,431 -63.82 0.0435
2021-05-17 2021-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,867,392 -55,984 -2.91 50,942 -3.44 0.1333
2021-02-16 2020-12-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,923,376 178,378 10.22 52,758 56.81 0.1373
2020-11-13 2020-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,744,998 155,271 9.77 33,644 35.40 0.0977
2020-08-14 2020-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,589,727 -561,207 -26.09 24,847 -16.53 0.0819
2020-05-19 2020-03-31 13F/A-1 KRATOS DEFENSE & SECURITY SOLU Common 50077B207 2,150,934 -5,870 -0.27 29,769 -23.36 0.1308
2020-05-15 2020-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 2,150,934 -5,870 29,769 130,976.3140
2020-02-14 2019-12-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 2,156,804 23,980 1.12 38,844 -2.06 0.1430
2019-11-14 2019-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 2,132,824 493,867 30.13 39,660 5.71 0.1556
2019-08-14 2019-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,638,957 -43,676 -2.60 37,516 42.65 0.1441
2019-05-14 2019-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,682,633 559,424 49.81 26,300 66.18 0.1047
2019-02-14 2018-12-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,123,209 -54,481 -4.63 15,826 -9.08 0.0729
2018-11-14 2018-09-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 1,177,690 260,673 28.43 17,406 64.91 0.0654
2018-07-19 2018-06-30 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 917,017 253,479 38.20 10,555 54.58 0.0443
2018-05-10 2018-03-31 13F KRATOS DEFENSE & SECURITY SOLU Common 50077B207 663,538 663,538 6,828 0.0317
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.