Walleye Trading
MRCY icon

Walleye Trading’s Mercury Systems MRCY Stock Holding History

Walleye Trading’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 		– Sell
-635
Closed -$60.5K – 4304
2026
Q1 		$46.3K Buy
+635
New +$55.3K ﹤0.01% 3703
2025
Q4 		– Sell
-3,401
Closed -$253K – 4673
2025
Q3 		$263K Sell
3,401
-226
-6% -$14.1K ﹤0.01% 3185
2025
Q2 		$195K Buy
+3,627
New +$177K ﹤0.01% 3255
2024
Q1 		– Sell
-17,453
Closed -$526K – 5126
2023
Q4 		$638K Buy
+17,453
New +$630K ﹤0.01% 2858
2022
Q2 		– Sell
-4,722
Closed -$282K – 5476
2022
Q1 		$304K Sell
4,722
-6,524
-58% -$387K ﹤0.01% 3433
2021
Q4 		$619K Sell
11,246
-1,202
-10% -$60.9K ﹤0.01% 2733
2021
Q3 		$590K Buy
+12,448
New +$692K ﹤0.01% 2760
2021
Q2 		– Sell
-589
Closed -$40.7K – 5398
2021
Q1 		$42K Sell
589
-256
-30% -$18.5K ﹤0.01% 4379
2020
Q4 		$74K Buy
+845
New +$64.2K ﹤0.01% 4050
2020
Q3 		– Sell
-622
Closed -$47.2K – 4426
2020
Q2 		$49K Buy
+622
New +$50.9K ﹤0.01% 3801
2019
Q4 		– Sell
-353
Closed -$29K – 4457
2019
Q3 		$29K Sell
353
-5,980
-94% -$472K ﹤0.01% 3697
2019
Q2 		$446K Buy
6,333
+3,045
+93% +$211K ﹤0.01% 2281
2019
Q1 		$211K Buy
+3,288
New +$190K ﹤0.01% 2980
2016
Q1 		– Sell
-5,600
Closed -$103K – 5659
2015
Q4 		$103K Buy
5,600
+4,400
+367% +$79.7K ﹤0.01% 3269
2015
Q3 		$19K Buy
1,200
+800
+200% +$12.1K ﹤0.01% 4104
2015
Q2 		$6K Buy
+400
New +$5.81K ﹤0.01% 4448

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 Trading's MRCY Position: Q2 2026 in Review

Walleye Trading sold out of Mercury Systems (MRCY) in Q2 2026, closing a stake of 635 shares — an estimated $60.5K sold.

Walleye Trading first reported a position in MRCY in Q2 2015 and held it in 16 quarters. The position peaked at $638K in Q4 2023. 393 funds tracked by Wall St. Rank hold MRCY as of Q2 2026.

  • Walleye Trading reported no remaining Mercury Systems position as of Q2 2026 after selling out during the quarter.
  • Walleye Trading sold 635 Mercury Systems shares in Q2 2026, an estimated $60.5K.
  • Walleye Trading first reported a position in Mercury Systems in Q2 2015 and held it in 16 quarters.
  • Walleye Trading's Mercury Systems position peaked at $638K in Q4 2023.
  • 393 funds tracked by Wall St. Rank held Mercury Systems as of Q2 2026.

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