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L.J. Altfest & Co’s Mercury Systems MRCY Stock Holding History

L.J. Altfest & Co’s Portfolio MRCY Stock Details MRCY Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-10,898
Closed -$796K – 366
2025
Q4 		$796K Sell
10,898
-172
-2% -$12.8K 0.09% 160
2025
Q3 		$857K Sell
11,070
-1,705
-13% -$106K 0.1% 147
2025
Q2 		$688K Sell
12,775
-4,827
-27% -$235K 0.08% 176
2025
Q1 		$758K Buy
17,602
+770
+5% +$33.7K 0.1% 152
2024
Q4 		$707K Sell
16,832
-17
-0.1% -$648 0.09% 157
2024
Q3 		$623K Buy
16,849
+5,172
+44% +$182K 0.08% 186
2024
Q2 		$315K Buy
+11,677
New +$341K 0.04% 248
2021
Q3 		– Sell
-4,243
Closed -$281K – 270
2021
Q2 		$281K Buy
+4,243
New +$293K 0.06% 217
2021
Q1 		– Sell
-2,631
Closed -$232K – 287
2020
Q4 		$232K Buy
+2,631
New +$200K 0.06% 232

Other funds holding MRCY

BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
JPM
JANA Partners Management New York $1.67B AUM 1.66% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
CCA
Conestoga Capital Advisors Wayne, Pennsylvania $5.01B AUM 6.26% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $145B AUM 22.78% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Dimensional Fund Advisors
Dimensional Fund Advisors Austin, Texas $481B AUM 30.42% 1-Year Est. Return

L.J. Altfest & Co's MRCY Position: Q1 2026 in Review

L.J. Altfest & Co sold out of Mercury Systems (MRCY) in Q1 2026, closing a stake of 10,898 shares — an estimated $796K sold.

L.J. Altfest & Co first reported a position in MRCY in Q4 2020 and held it in 9 quarters. The position peaked at $857K in Q3 2025. 356 funds tracked by Wall St. Rank hold MRCY as of Q1 2026.

  • L.J. Altfest & Co reported no remaining Mercury Systems position as of Q1 2026 after selling out during the quarter.
  • L.J. Altfest & Co sold 10,898 Mercury Systems shares in Q1 2026, an estimated $796K.
  • L.J. Altfest & Co first reported a position in Mercury Systems in Q4 2020 and held it in 9 quarters.
  • L.J. Altfest & Co's Mercury Systems position peaked at $857K in Q3 2025.
  • 356 funds tracked by Wall St. Rank held Mercury Systems as of Q1 2026.

Based on L.J. Altfest & Co's 13F filing for Q1 2026, filed 28 Apr 2026.