William Blair & Company’s Mercury Systems MRCY Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q1
$5.74M Sell
78,791
-4,981
-6% -$434K 0.02% 477
2025
Q4
$6.12M Buy
83,772
+3,252
+4% +$242K 0.02% 467
2025
Q3
$6.23M Sell
80,520
-44,527
-36% -$2.77M 0.02% 470
2025
Q2
$6.74M Sell
125,047
-7,121
-5% -$347K 0.02% 427
2025
Q1
$5.7M Sell
132,168
-3,871
-3% -$170K 0.02% 451
2024
Q4
$5.71M Sell
136,039
-21,154
-13% -$807K 0.02% 460
2024
Q3
$5.82M Buy
157,193
+79,922
+103% +$2.81M 0.02% 461
2024
Q2
$2.09M Sell
77,271
-41,408
-35% -$1.21M 0.01% 675
2024
Q1
$3.5M Sell
118,679
-4,205
-3% -$127K 0.01% 556
2023
Q4
$4.49M Sell
122,884
-7,723
-6% -$279K 0.02% 482
2023
Q3
$4.84M Sell
130,607
-16,784
-11% -$619K 0.02% 444
2023
Q2
$5.1M Sell
147,391
-16,417
-10% -$701K 0.02% 441
2023
Q1
$8.37M Sell
163,808
-7,908
-5% -$400K 0.03% 338
2022
Q4
$7.68M Sell
171,716
-2,417
-1% -$114K 0.03% 338
2022
Q3
$7.07M Sell
174,133
-5,531
-3% -$290K 0.03% 344
2022
Q2
$11.6M Sell
179,664
-10,183
-5% -$608K 0.05% 277
2022
Q1
$12.2M Buy
189,847
+2,951
+2% +$175K 0.04% 301
2021
Q4
$10.3M Sell
186,896
-352,796
-65% -$17.9M 0.03% 340
2021
Q3
$25.6M Sell
539,692
-215,287
-29% -$12M 0.09% 202
2021
Q2
$50M Sell
754,979
-51,373
-6% -$3.55M 0.17% 129
2021
Q1
$57M Buy
806,352
+62,117
+8% +$4.49M 0.21% 114
2020
Q4
$65.5M Buy
744,235
+67,351
+10% +$5.12M 0.24% 97
2020
Q3
$52.4M Buy
676,884
+135,469
+25% +$10.3M 0.22% 96
2020
Q2
$42.6M Buy
541,415
+56,920
+12% +$4.66M 0.2% 115
2020
Q1
$34.6M Buy
484,495
+295,486
+156% +$22.4M 0.22% 103
2019
Q4
$13.1M Buy
189,009
+4,516
+2% +$325K 0.07% 238
2019
Q3
$15M Sell
184,493
-1,443
-0.8% -$114K 0.09% 205
2019
Q2
$13.1M Buy
185,936
+23,355
+14% +$1.62M 0.07% 221
2019
Q1
$10.4M Buy
162,581
+1,805
+1% +$104K 0.06% 249
2018
Q4
$7.6M Buy
160,776
+2,955
+2% +$144K 0.06% 269
2018
Q3
$8.73M Sell
157,821
-15,245
-9% -$738K 0.05% 273
2018
Q2
$6.59M Buy
173,066
+49,403
+40% +$1.91M 0.04% 301
2018
Q1
$5.97M Sell
123,663
-13,005
-10% -$620K 0.04% 317
2017
Q4
$7.02M Sell
136,668
-45,754
-25% -$2.35M 0.05% 288
2017
Q3
$9.46M Sell
182,422
-1,723
-0.9% -$79.4K 0.07% 240
2017
Q2
$7.75M Buy
184,145
+18,217
+11% +$716K 0.06% 263
2017
Q1
$6.41M Buy
165,928
+17,189
+12% +$611K 0.05% 277
2016
Q4
$4.5M Sell
148,739
-231
-0.2% -$6.56K 0.04% 326
2016
Q3
$3.66M Buy
148,970
+96,890
+186% +$2.33M 0.03% 366
2016
Q2
$1.29M Buy
52,080
+41,018
+371% +$882K 0.01% 568
2016
Q1
$224K Buy
+11,062
New +$193K ﹤0.01% 1035
2015
Q3
Sell
-10,078
Closed -$147K 1493
2015
Q2
$147K Hold
10,078
﹤0.01% 2090
2015
Q1
$156K Sell
10,078
-1,250
-11% -$19.7K ﹤0.01% 2036
2014
Q4
$158K Sell
11,328
-4,475
-28% -$57.3K ﹤0.01% 1988
2014
Q3
$173K Sell
15,803
-1,122
-7% -$12.6K ﹤0.01% 1982
2014
Q2
$191K Sell
16,925
-60,100
-78% -$750K ﹤0.01% 1960
2014
Q1
$1.02M Sell
77,025
-11,030
-13% -$125K ﹤0.01% 1420
2013
Q4
$964K Sell
88,055
-181,275
-67% -$1.81M ﹤0.01% 1399
2013
Q3
$2.69M Buy
+269,330
New +$2.55M ﹤0.01% 1053

Other funds holding MRCY