Mercury Systems, Inc.
US ˙ NasdaqGS ˙ US5893781089

SecurityMRCY / Mercury Systems, Inc.
InstitutionStrs Ohio
Latest Disclosed Ownership5,500 shares
Latest Disclosed Value $ 401,005
Strs Ohio reports 57.69% decrease in ownership of MRCY / Mercury Systems, Inc.

On April 24, 2026 - Strs Ohio filed a 13F-HR form disclosing ownership of 5,500 shares of Mercury Systems, Inc. (US:MRCY) valued at $401,005 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 2, 2026 disclosing 13,000 shares of Mercury Systems, Inc.. This represents a change in shares of -57.69% during the quarter. The current value of the position is $613,745 USD.

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)
2026-04-24 2026-03-31 13F MERCURY SYSTEMS COM_STK 589378108 5,500 -7,500 -57.69 401 -57.74 0.0016
2026-02-02 2025-12-31 13F MERCURY SYSTEMS COM_STK 589378108 13,000 0 0.00 949 -5.67 0.0035
2025-10-30 2025-09-30 13F MERCURY SYSTEMS COM_STK 589378108 13,000 13,000 1,006 0.0037
2023-10-26 2023-09-30 13F/A-1 MERCURY SYSTEMS COM 589378108 0 -33,373 -100.00 0 -100.00
2023-10-26 2023-09-30 13F MERCURY SYSTEMS COM 589378108 0 0
2023-07-31 2023-06-30 13F MERCURY SYSTEMS COM 589378108 33,373 4,850 17.00 1 0.00 0.0049
2023-08-02 2023-03-31 13F/A-2 MERCURY SYSTEMS COM 589378108 28,523 -1,387 -4.64 1 0.00 0.0063
2023-08-02 2023-03-31 13F/A-1 MERCURY SYSTEMS COM 589378108 28,523 1
2023-04-27 2023-03-31 13F MERCURY SYSTEMS COM 589378108 28,523 -1,387 1 0.0075
2023-01-26 2022-12-31 13F MERCURY SYSTEMS COM 589378108 29,910 -544 -1.79 1 -99.92 0.0060
2022-10-27 2022-09-30 13F MERCURY SYSTEMS COM 589378108 30,454 8,687 39.91 1,236 -11.71 0.0059
2022-07-25 2022-06-30 13F MERCURY SYSTEMS COM 589378108 21,767 21,767 1,400 0.0063
2021-04-23 2021-03-31 13F MERCURY SYSTEMS COM 589378108 0 -15,102 -100.00 0 -100.00
2021-01-25 2020-12-31 13F MERCURY SYSTEMS COM 589378108 15,102 -3,241 -17.67 1,329 -6.41 0.0051
2020-12-14 2020-09-30 13F MERCURY SYSTEMS COM 589378108 18,343 2,176 13.46 1,420 11.72 0.0059
2020-07-23 2020-06-30 13F MERCURY SYSTEMS COM 589378108 16,167 7,067 77.66 1,271 95.84 0.0056
2020-04-23 2020-03-31 13F MERCURY SYSTEMS COM 589378108 9,100 2,800 44.44 649 49.20 0.0034
2020-01-24 2019-12-31 13F MERCURY SYSTEMS COM 589378108 6,300 -1,700 -21.25 435 -32.97 0.0018
2019-10-21 2019-09-30 13F/A-1 MERCURY SYSTEMS COM 589378108 8,000 1,600 25.00 649 44.22 0.0028
2019-10-21 2019-09-30 13F MERCURY SYSTEMS COM 589378108 8,000 1,700 649 2,872.5100
2019-07-25 2019-06-30 13F MERCURY SYSTEMS COM 589378108 6,400 3,100 93.94 450 113.27 0.0020
2019-04-19 2019-03-31 13F MERCURY SYSTEMS COM 589378108 3,300 1,000 43.48 211 95.37 0.0010
2019-01-23 2018-12-31 13F MERCURY SYSTEMS COM 589378108 2,300 800 53.33 108 31.71 0.0005
2018-10-19 2018-09-30 13F MERCURY SYSTEMS COM 589378108 1,500 1,500 82 0.0004
2018-08-06 2018-06-30 13F MERCURY SYSTEMS COM 589378108 0 -1,000 -100.00 0 -100.00
2018-04-20 2018-03-31 13F MERCURY SYSTEMS COM 589378108 1,000 0 0.00 48 -5.88 0.0002
2018-01-23 2017-12-31 13F MERCURY SYSTEMS COM 589378108 1,000 -600 -37.50 51 -38.55 0.0002
2017-10-23 2017-09-30 13F MERCURY SYSTEMS COM 589378108 1,600 1,600 83 0.0004
2016-10-27 2016-09-30 13F MERCURY SYSTEMS COM 589378108 0 -25,500 -100.00 0 -100.00
2016-07-26 2016-06-30 13F MERCURY SYSTEMS COM 589378108 25,500 2,000 8.51 633 32.70 0.0028
2016-04-25 2016-03-31 13F/A-1 MERCURY SYSTEMS COM 589378108 23,500 13,900 144.79 477 171.02 0.0021
2016-01-28 2015-12-31 13F MERCURY SYSTEMS COM 589378108 9,600 9,600 176 0.0008
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.