Mercury Systems, Inc.
US ˙ NasdaqGS ˙ US5893781089

SecurityMRCY / Mercury Systems, Inc.
InstitutionPrudential Financial Inc
Latest Disclosed Ownership54,216 shares
Latest Disclosed Value $ 3,952,889
Prudential Financial Inc reports 67.37% decrease in ownership of MRCY / Mercury Systems, Inc.

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 54,216 shares of Mercury Systems, Inc. (US:MRCY) valued at $3,952,889 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 166,138 shares of Mercury Systems, Inc.. This represents a change in shares of -67.37% during the quarter. The current value of the position is $6,049,963 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-13 2026-03-31 13F MERCURY SYS COM 589378108 54,216 -111,922 -67.37 3,953 -67.42 0.0027
2026-02-13 2025-12-31 13F MERCURY SYS COM 589378108 166,138 38,918 30.59 12,130 23.19 0.0146
2025-11-13 2025-09-30 13F MERCURY SYS COM 589378108 127,220 -65,955 -34.14 9,847 -5.36 0.0117
2025-08-12 2025-06-30 13F MERCURY SYS COM 589378108 193,175 143,160 286.23 10,404 382.78 0.0134
2025-05-13 2025-03-31 13F MERCURY SYS COM 589378108 50,015 -1,900 -3.66 2,155 -1.15 0.0031
2025-02-11 2024-12-31 13F MERCURY SYS COM 589378108 51,915 -975 -1.84 2,180 11.45 0.0030
2024-11-14 2024-09-30 13F MERCURY SYS COM 589378108 52,890 -5,098 -8.79 1,957 24.98 0.0028
2024-08-13 2024-06-30 13F MERCURY SYS COM 589378108 57,988 510 0.89 1,565 -7.67 0.0023
2024-05-14 2024-03-31 13F MERCURY SYS COM 589378108 57,478 -1,150 -1.96 1,696 -20.94 0.0024
2024-02-13 2023-12-31 13F MERCURY SYS COM 589378108 58,628 -253 -0.43 2,144 -1.79 0.0032
2023-11-13 2023-09-30 13F MERCURY SYS COM 589378108 58,881 58,881 2,184 0.0034
2023-08-11 2023-06-30 13F MERCURY SYS COM 589378108 0 -4,552 -100.00 0 -100.00
2023-05-12 2023-03-31 13F MERCURY SYS COM 589378108 4,552 4,552 233 0.0004
2022-11-04 2022-09-30 13F MERCURY SYS COM 589378108 0 -4,082 -100.00 0 -100.00
2022-08-15 2022-06-30 13F MERCURY SYS COM 589378108 4,082 -470 -10.33 263 -10.24 0.0004
2022-05-13 2022-03-31 13F MERCURY SYS COM 589378108 4,552 -510 -10.08 293 5.02 0.0004
2022-02-14 2021-12-31 13F MERCURY SYS COM 589378108 5,062 -330 -6.12 279 8.98 0.0003
2021-11-15 2021-09-30 13F MERCURY SYS COM 589378108 5,392 -343 -5.98 256 -32.81 0.0004
2021-08-16 2021-06-30 13F MERCURY SYS COM 589378108 5,735 -2,265 -28.31 381 -32.69 0.0005
2021-05-12 2021-03-31 13F MERCURY SYS COM 589378108 8,000 -242 -2.94 566 -22.04 0.0008
2021-08-16 2020-12-31 13F/A-1 MERCURY SYS COM 0088 589378108 8,242 7,949 2,712.97 726 3,056.52 0.0012
2021-02-16 2020-12-31 13F MERCURY SYS COM 589378108 8,242 7,949 726 0.0012
2021-08-05 2020-09-30 13F/A-1 MERCURY SYS COM 589378108 293 -10 -3.30 23 -4.17 0.0033
2020-11-16 2020-09-30 13F MERCURY SYS COM 589378108 8,226 7,923 637 0.0012
2021-08-05 2020-06-30 13F/A-1 MERCURY SYS COM 0078 589378108 303 5 1.68 24 14.29 0.0044
2020-08-12 2020-06-30 13F MERCURY SYS COM 589378108 8,366 8,068 658 0.0013
2021-08-05 2020-03-31 13F/A-1 MERCURY SYS COM 0071 589378108 298 119 66.48 21 75.00 0.0055
2020-05-12 2020-03-31 13F MERCURY SYS COM 589378108 45,775 45,596 3,265 0.0072
2021-08-05 2019-12-31 13F/A-1 MERCURY SYS COM 0069 589378108 179 -126 -41.31 12 -52.00 0.0031
2020-02-11 2019-12-31 13F MERCURY SYS COM 589378108 39,135 38,830 2,705 0.0040
2021-08-05 2019-09-30 13F/A-1 MERCURY SYS COM 0081 589378108 305 60 24.49 25 47.06 0.0082
2019-11-13 2019-09-30 13F MERCURY SYS COM 589378108 90,100 89,855 7,313 0.0116
2021-08-05 2019-06-30 13F/A-1 MERCURY SYS COM 589378108 245 181 282.81 17 325.00 0.0059
2019-08-08 2019-06-30 13F MERCURY SYS COM 589378108 102,413 102,349 7,205 0.0112
2021-08-05 2019-03-31 13F/A-1 MERCURY SYS COM 589378108 64 12 23.08 4 100.00 0.0017
2019-05-15 2019-03-31 13F MERCURY SYS COM 589378108 78,423 78,371 5,025 0.0084
2021-08-05 2018-12-31 13F/A-1 MERCURY SYS COM 589378108 52 12 30.00 2 0.00 0.0016
2019-02-07 2018-12-31 13F MERCURY SYS COM 589378108 79,006 -1,577 3,736 0.0066
2021-09-01 2018-09-30 13F/A-1 MERCURY SYS COM 0055 589378108 40 21 110.53 2 100.00 0.0032
2018-11-07 2018-09-30 13F MERCURY SYS COM 589378108 80,583 80,564 4,458 0.0066
2021-09-01 2018-06-30 13F/A-1 MERCURY SYS COM 589378108 19 0 0.00 1 0.00 0.0036
2018-08-13 2018-06-30 13F MERCURY SYS COM 589378108 80,833 80,814 3,077 0.0046
2021-09-01 2018-03-31 13F/A-1 MERCURY SYS COM 589378108 19 -79,351 -99.98 1 -99.98 0.0130
2018-05-04 2018-03-31 13F MERCURY SYS COM 589378108 81,073 1,703 3,917 0.0060
2018-02-13 2017-12-31 13F MERCURY SYS COM 589378108 79,370 -2,680 -3.27 4,076 -4.25 0.0056
2017-11-02 2017-09-30 13F MERCURY SYS COM 589378108 82,050 1,520 1.89 4,257 25.58 0.0070
2017-08-07 2017-06-30 13F MERCURY SYS COM 589378108 80,530 -1,654 -2.01 3,390 5.64 0.0050
2017-05-10 2017-03-31 13F MERCURY SYS COM 589378108 82,184 12,480 17.90 3,209 52.37 0.0050
2017-02-07 2016-12-31 13F MERCURY SYS COM 589378108 69,704 -1,180 -1.66 2,106 20.90 0.0034
2016-11-04 2016-09-30 13F MERCURY SYS COM 589378108 70,884 -25,370 -26.36 1,742 -27.20 0.0029
2016-08-09 2016-06-30 13F MERCURY SYS COM 589378108 96,254 17,700 22.53 2,393 50.03 0.0040
2016-05-09 2016-03-31 13F MERCURY SYS COM 589378108 78,554 2,100 2.75 1,595 13.60 0.0029
2016-02-12 2015-12-31 13F MERCURY SYS COM 589378108 76,454 2,500 3.38 1,404 19.29 0.0025
2015-11-10 2015-09-30 13F MERCURY SYS COM 589378108 73,954 800 1.09 1,177 9.90 0.0023
2015-08-06 2015-06-30 13F MERCURY SYS COM 589378108 73,154 1,100 1.53 1,071 -4.37 0.0019
2015-05-01 2015-03-31 13F MERCURY SYS COM 589378108 72,054 1,900 2.71 1,120 14.64 0.0019
2015-02-06 2014-12-31 13F MERCURY SYS COM 589378108 70,154 5,600 8.67 977 37.41 0.0018
2014-11-12 2014-09-30 13F MERCURY SYS COM 589378108 64,554 -8,880 -12.09 711 -14.65 0.0013
2014-08-13 2014-06-30 13F MERCURY SYS COM 589378108 73,434 180 0.25 833 -13.95 0.0015
2014-05-14 2014-03-31 13F MERCURY SYS COM 589378108 73,254 2,100 2.95 968 24.26 0.0018
2014-02-11 2013-12-31 13F MERCURY SYS COM 589378108 71,154 -1,050 -1.45 779 8.04 0.0015
2013-11-07 2013-09-30 13F MERCURY SYS COM 589378108 72,204 1,950 2.78 721 11.27 0.0015
2013-08-07 2013-06-30 13F MERCURY SYS COM 589378108 70,254 70,254 648 0.0014
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.