Kratos Defense & Security Solutions, Inc.
US ˙ NasdaqGS ˙ US50077B2079

SecurityKTOS / Kratos Defense & Security Solutions, Inc.
InstitutionAdvisor Group Holdings, Inc.
Latest Disclosed Ownership114,274 shares
Latest Disclosed Value $ 8,057,345
Advisor Group Holdings, Inc. ownership in KTOS / Kratos Defense & Security Solutions, Inc.

On May 15, 2026 - Advisor Group Holdings, Inc. filed a 13F-HR form disclosing ownership of 114,274 shares of Kratos Defense & Security Solutions, Inc. (US:KTOS) valued at $8,057,460 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 124,417 shares of Kratos Defense & Security Solutions, Inc.. This represents a change in shares of -8.15% during the quarter. The current value of the position is $6,677,030 USD.

Advisor Group Holdings, Inc. has a history of taking positions in derivatives of the underlying security (KTOS) in the form of stock options. The firm currently holds call options representing 2 of underlying shares valued at $8,360 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

KTOS / Kratos Defense & Security Solutions, Inc. Historical Put/Call Ratio
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 & SEC SOLUTIO COM NEW 50077B207 114,274 -10,143 -8.15 8,057 -14.69 0.0069
2026-02-17 2025-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 124,417 -10,148 -7.54 9,444 -12.30 0.0138
2025-11-14 2025-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 134,565 47,553 54.65 10,770 166.63 0.0151
2025-09-04 2025-06-30 13F/A-1 RATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 87,012 949 1.10 4,039 58.08 0.0072
2025-08-13 2025-06-30 13F RATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 77,052 -9,011 2,087 0.0024
2025-05-12 2025-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 86,063 10,240 13.51 2,555 27.75 0.0057
2025-06-06 2024-12-31 13F/A-1 KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 75,823 7,226 10.53 2,000 25.16 0.0045
2025-02-07 2024-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 41,003 -27,594 960 0.0024
2024-11-13 2024-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 68,597 4,060 6.29 1,598 23.78 0.0036
2024-08-13 2024-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 64,537 2,555 4.12 1,291 13.35 0.0031
2024-05-10 2024-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 61,982 -47,269 -43.27 1,139 -48.60 0.0025
2024-02-12 2023-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 109,251 41,042 60.17 2,217 116.41 0.0039
2023-11-13 2023-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 68,209 9,660 16.50 1,024 22.05 0.0015
2023-08-21 2023-06-30 13F/A-1 KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 58,549 -9,419 -13.86 839 -8.41 0.0015
2023-08-10 2023-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 58,549 -9,419 839 0.0002
2023-05-12 2023-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 67,968 5,005 7.95 916 41.14 0.0017
2023-02-10 2022-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 62,963 22,157 54.30 649 56.76 0.0013
2022-11-14 2022-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 40,806 4,419 12.14 414 -18.18 0.0009
2022-08-10 2022-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 36,387 -1,199 -3.19 506 -35.54 0.0011
2022-05-04 2022-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 37,586 8,795 30.55 785 40.43 0.0015
2022-02-03 2021-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 28,791 9,545 49.59 559 29.70 0.0011
2021-11-05 2021-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 19,246 2,732 16.54 431 -8.10 0.0009
2021-08-02 2021-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 16,514 -1,680 -9.23 469 -5.44 0.0010
2021-05-13 2021-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 18,194 -1,050 -5.46 496 -6.06 0.0012
2021-02-10 2020-12-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 19,244 -2,135 -9.99 528 28.47 0.0014
2020-11-12 2020-09-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 21,379 -3,180 -12.95 411 6.75 0.0012
2020-08-14 2020-06-30 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 24,559 -16,796 -40.61 385 10.00 0.0013
2020-05-18 2020-03-31 13F KRATOS DEFENSE & SEC SOLUTIO COM NEW 50077B207 41,355 41,355 350 0.0014
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F KRATOS DEFENSE & SEC SOLUTIO CALL Call 2 0.00 8 -11.11 n/a n/a n/a
2026-02-17 2025-12-31 13F KRATOS DEFENSE & SEC SOLUTIO CALL Call 2 0.00 9 28.57 n/a n/a n/a
2025-11-14 2025-09-30 13F KRATOS DEFENSE & SEC SOLUTIO CALL Call 2 0.00 8 75.00 n/a n/a n/a
2025-09-04 2025-06-30 13F/A KRATOS DEFENSE & SEC SOLUTIO CALL Call 2 4 n/a n/a n/a
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.