Mercury Systems, Inc.
US ˙ NasdaqGS ˙ US5893781089

SecurityMRCY / Mercury Systems, Inc.
InstitutionNeuberger Berman Group LLC
Latest Disclosed Ownership910,418 shares
Latest Disclosed Value $ 66,256,335
Neuberger Berman Group LLC reports 11.62% decrease in ownership of MRCY / Mercury Systems, Inc.

On May 14, 2026 - Neuberger Berman Group LLC filed a 13F-HR form disclosing ownership of 910,418 shares of Mercury Systems, Inc. (US:MRCY) valued at $66,378,576 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,030,103 shares of Mercury Systems, Inc.. This represents a change in shares of -11.62% during the quarter. The current value of the position is $101,302,211 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)
2026-05-14 2026-03-31 13F MERCURY SYSTEMS Common 589378108 910,418 -119,685 -11.62 66,256 -11.95 0.0258
2026-02-13 2025-12-31 13F MERCURY SYSTEMS Common 589378108 1,030,103 -16,366 -1.56 75,247 -6.99 0.0560
2025-11-12 2025-09-30 13F MERCURY SYSTEMS Common 589378108 1,046,469 -9,951 -0.94 80,900 42.23 0.0591
2025-08-25 2025-06-30 13F/A-1 MERCURY SYSTEMS Common 589378108 1,056,420 -6,918 -0.65 56,878 23.71 0.0438
2025-08-13 2025-06-30 13F MERCURY SYSTEMS Common 589378108 1,056,420 -6,918 56,878 0.0226
2025-05-13 2025-03-31 13F MERCURY SYSTEMS Common 589378108 1,063,338 -6,280 -0.59 45,978 2.35 0.0385
2025-02-13 2024-12-31 13F MERCURY SYSTEMS Common 589378108 1,069,618 -7,601 -0.71 44,924 12.65 0.0357
2024-11-14 2024-09-30 13F MERCURY SYSTEMS Common 589378108 1,077,219 77,180 7.72 39,882 47.76 0.0311
2024-11-14 2024-06-30 13F/A-1 MERCURY SYSTEMS Common 589378108 1,000,039 291,427 41.13 26,991 29.22 0.0222
2024-08-13 2024-06-30 13F MERCURY SYSTEMS Common 589378108 1,000,039 291,427 26,991 0.0222
2024-11-14 2024-03-31 13F/A-1 MERCURY SYSTEMS Common 589378108 708,612 119,501 20.28 20,887 -3.08 0.0173
2024-05-13 2024-03-31 13F MERCURY SYSTEMS Common 589378108 708,612 119,501 20,887 0.0173
2024-11-14 2023-12-31 13F/A-2 MERCURY SYSTEMS Common 589378108 589,111 -2,286 -0.39 21,552 -1.70 0.0188
2024-02-09 2023-12-31 13F MERCURY SYSTEMS Common 589378108 589,111 -2,286 21,552 0.0188
2023-11-14 2023-09-30 13F MERCURY SYSTEMS Common 589378108 591,397 10,968 1.89 21,924 9.29 0.0200
2023-08-11 2023-06-30 13F MERCURY SYSTEMS Common 589378108 580,429 173,851 42.76 20,061 -3.55 0.0179
2023-05-12 2023-03-31 13F MERCURY SYSTEMS Common 589378108 406,578 11,137 2.82 20,800 17.75 0.0193
2023-02-13 2022-12-31 13F MERCURY SYSTEMS Common 589378108 395,441 1,219 0.31 17,664 10.19 0.0173
2022-11-15 2022-09-30 13F MERCURY SYSTEMS Common 589378108 394,222 124,524 46.17 16,030 -7.31 0.0167
2022-08-15 2022-06-30 13F MERCURY SYSTEMS Common 589378108 269,698 7,090 2.70 17,295 2.09 0.0174
2022-05-23 2022-03-31 13F/A-1 MERCURY SYSTEMS Common 589378108 262,608 -7,656 -2.83 16,941 16.48 0.0144
2022-05-13 2022-03-31 13F MERCURY SYSTEMS Common 589378108 262,608 -7,656 16,509 0.0074
2022-02-11 2021-12-31 13F MERCURY SYSTEMS Common 589378108 270,264 1,652 0.62 14,544 15.58 0.0114
2021-11-12 2021-09-30 13F MERCURY SYSTEMS Common 589378108 268,612 -7,210 -2.61 12,584 -30.46 0.0110
2021-08-13 2021-06-30 13F MERCURY SYSTEMS Common 589378108 275,822 -1,928 -0.69 18,095 -7.18 0.0158
2021-05-13 2021-03-31 13F MERCURY SYSTEMS Common 589378108 277,750 -13,391 -4.60 19,494 -23.65 0.0186
2021-02-10 2020-12-31 13F MERCURY SYSTEMS Common 589378108 291,141 -38,515 -11.68 25,532 0.08 0.0265
2020-11-12 2020-09-30 13F MERCURY SYSTEMS Common 589378108 329,656 -5,197 -1.55 25,511 -3.14 0.0303
2020-08-13 2020-06-30 13F MERCURY SYSTEMS Common 589378108 334,853 -6,171 -1.81 26,337 8.32 0.0327
2020-05-14 2020-03-31 13F MERCURY SYSTEMS Common 589378108 341,024 14,148 4.33 24,313 7.61 0.0371
2020-02-12 2019-12-31 13F MERCURY SYSTEMS Common 589378108 326,876 2,366 0.73 22,593 -14.23 0.0264
2019-11-13 2019-09-30 13F MERCURY SYSTEMS Common 589378108 324,510 -29,288 -8.28 26,341 5.89 0.0322
2019-08-13 2019-06-30 13F MERCURY SYSTEMS Common 589378108 353,798 -105,446 -22.96 24,875 -15.47 0.0298
2019-05-13 2019-03-31 13F MERCURY SYSTEMS Common 589378108 459,244 5,035 1.11 29,426 37.04 0.0361
2019-02-12 2018-12-31 13F MERCURY SYSTEMS Common 589378108 454,209 -6,906 -1.50 21,473 -15.82 0.0299
2018-11-16 2018-09-30 13F/A-1 MERCURY SYSTEMS Common 589378108 461,115 -102,270 -18.15 25,507 18.96 0.0289
2018-11-13 2018-09-30 13F MERCURY SYSTEMS Common 589378108 461,115 -102,270 25,507
2018-08-13 2018-06-30 13F MERCURY SYSTEMS Common 589378108 563,385 -25,635 -4.35 21,441 -24.65 0.0237
2018-05-08 2018-03-31 13F MERCURY SYSTEMS Common 589378108 589,020 -32,650 -5.25 28,454 -10.87 0.0325
2018-02-14 2017-12-31 13F MERCURY SYSTEMS Common 589378108 621,670 -255,073 -29.09 31,925 -29.81 0.0367
2017-11-15 2017-09-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 876,743 -721,328 -45.14 45,485 -32.38 0.0569
2017-08-08 2017-06-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,598,071 -56,030 -3.39 67,263 4.13 0.0864
2017-05-10 2017-03-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,654,101 -25,080 -1.49 64,593 27.29 0.0834
2017-02-06 2016-12-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,679,181 -20,921 -1.23 50,745 21.48 0.0682
2016-11-02 2016-09-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,700,102 8,780 0.52 41,772 -0.65 0.0567
2016-08-05 2016-06-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,691,322 -2,427 -0.14 42,046 22.29 0.0579
2016-05-06 2016-03-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,693,749 108,932 6.87 34,383 18.17 0.0473
2016-01-28 2015-12-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,584,817 -59,816 -3.64 29,097 11.20 0.0381
2015-11-10 2015-09-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,644,633 42,493 2.65 26,166 11.56 0.0337
2015-07-31 2015-06-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,602,140 140,046 9.58 23,455 3.16 0.0261
2015-05-06 2015-03-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,462,094 1,462,094 0.00 22,736 0.0243
2015-02-05 2014-12-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 0 -1,377,577 -100.00 0 -100.00
2014-11-04 2014-09-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,377,577 575,361 71.72 15,167 66.73 0.0156
2014-08-05 2014-06-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 802,216 -104,691 -11.54 9,097 -24.07 0.0089
2014-05-05 2014-03-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 906,907 -166,047 -15.48 11,980 1.97 0.0122
2014-02-11 2013-12-31 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 1,072,954 295,856 38.07 11,749 51.33 0.0121
2013-10-29 2013-09-30 13F/A-1 MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 777,098 -13,525 -1.71 7,764 6.50 0.0086
2013-10-29 2013-09-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 482,205 6,389
2013-08-13 2013-06-30 13F MERCURY COMPUTER SYSTEMS COMMON STOCK 589378108 790,623 790,623 7,290 0.0087
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.