Walleye Capital
MRCY icon

Walleye Capital’s Mercury Systems MRCY Stock Holding History

Walleye Capital’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
Q2 		$140K Sell
1,144
-1,096
-49% -$104K ﹤0.01% 3705
2026
Q1 		$163K Sell
2,240
-86
-4% -$7.49K ﹤0.01% 3448
2025
Q4 		$170K Sell
2,326
-439
-16% -$32.7K ﹤0.01% 3626
2025
Q3 		$214K Buy
+2,765
New +$172K ﹤0.01% 3272
2024
Q4 		– Sell
-1,703
Closed -$63K – 5288
2024
Q3 		$63K Sell
1,703
-7,837
-82% -$276K ﹤0.01% 4564
2024
Q2 		$257K Buy
9,540
+7,687
+415% +$224K ﹤0.01% 4107
2024
Q1 		$54.7K Buy
1,853
+552
+42% +$16.6K ﹤0.01% 4649
2023
Q4 		$47.6K Buy
+1,301
New +$47K ﹤0.01% 4317
2023
Q3 		– Sell
-22,679
Closed -$837K – 5159
2023
Q2 		$784K Buy
+22,679
New +$969K ﹤0.01% 2057
2022
Q1 		– Sell
-8,057
Closed -$444K – 2471
2021
Q4 		$444K Sell
8,057
-11,656
-59% -$590K 0.01% 1052
2021
Q3 		$935K Buy
+19,713
New +$1.1M 0.03% 477
2021
Q2 		– Sell
-2,830
Closed -$200K – 1452
2021
Q1 		$200K Buy
+2,830
New +$205K 0.01% 933
2019
Q3 		– Sell
-250
Closed -$19.8K – 2126
2019
Q2 		$18K Buy
+250
New +$17.3K ﹤0.01% 1542

Other funds holding MRCY

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
JPM
JANA Partners Management New York $1.9B AUM 18.33% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Invesco
Invesco Atlanta, Georgia $1.26T AUM 61.52% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
CCA
Conestoga Capital Advisors Wayne, Pennsylvania $4.6B AUM 16.08% 1-Year Est. Return

Walleye Capital's MRCY Position: Q2 2026 in Review

Walleye Capital reduced its Mercury Systems (MRCY) stake by 49% in Q2 2026, selling an estimated $104K and leaving 1,144 shares worth $140K. The position accounts for ﹤0.01% of the portfolio, ranked #3705.

Walleye Capital first reported a position in MRCY in Q2 2019 and has held it in 13 quarters since. The position peaked at $935K in Q3 2021. 392 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

  • Walleye Capital held 1,144 shares of Mercury Systems worth $140K as of Q2 2026.
  • Walleye Capital sold 1,096 Mercury Systems shares in Q2 2026, an estimated $104K.
  • Mercury Systems made up ﹤0.01% of Walleye Capital's portfolio in Q2 2026, its #3705 holding.
  • Walleye Capital first reported a position in Mercury Systems in Q2 2019 and has held it in 13 quarters since.
  • Walleye Capital's Mercury Systems position peaked at $935K in Q3 2021.
  • 392 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

Based on Walleye Capital's 13F filing for Q2 2026, filed 3 Aug 2026.