Marshall Wace’s Ametek AME Stock Holding History
Bought
Maintained
Sold
| Quarter | Market Value | Status | Shares |
Change in Stake | Trade Value | Portfolio Weight | Portfolio Position | |
|---|---|---|---|---|---|---|---|---|
|
2026
Q2 | $66.6M | Buy |
275,411
+102,141
| +59% | +$23.5M | 0.05% | 287 |
|
|
2026
Q1 | $37.1M | Buy |
173,270
+27,694
| +19% | +$6.15M | 0.04% | 467 |
|
|
2025
Q4 | $29.9M | Buy |
145,576
+37,230
| +34% | +$7.24M | 0.03% | 498 |
|
|
2025
Q3 | $20.4M | Sell |
108,346
-217,735
| -67% | -$40.1M | 0.02% | 645 |
|
|
2025
Q2 | $59M | Buy |
+326,081
| New | +$56.1M | 0.07% | 258 |
|
|
2025
Q1 | – | Sell |
-19,219
| Closed | -$3.46M | – | 2601 |
|
|
2024
Q4 | $3.46M | Buy |
19,219
+14,419
| +300% | +$2.63M | ﹤0.01% | 1224 |
|
|
2024
Q3 | $824K | Sell |
4,800
-29,159
| -86% | -$4.87M | ﹤0.01% | 1726 |
|
|
2024
Q2 | $5.66M | Buy |
33,959
+32,859
| +2,987% | +$5.68M | 0.01% | 948 |
|
|
2024
Q1 | $201K | Sell |
1,100
-1,200
| -52% | -$207K | ﹤0.01% | 2227 |
|
|
2023
Q4 | $379K | Buy |
+2,300
| New | +$351K | ﹤0.01% | 1810 |
|
|
2022
Q4 | – | Sell |
-231,292
| Closed | -$26.2M | – | 2905 |
|
|
2022
Q3 | $26.2M | Sell |
231,292
-395,291
| -63% | -$47.4M | 0.06% | 366 |
|
|
2022
Q2 | $68.9M | Buy |
626,583
+300,749
| +92% | +$36.6M | 0.14% | 147 |
|
|
2022
Q1 | $43.4M | Buy |
325,834
+5,736
| +2% | +$771K | 0.08% | 263 |
|
|
2021
Q4 | $47.1M | Buy |
+320,098
| New | +$43.8M | 0.09% | 227 |
|
|
2020
Q4 | – | Sell |
-45,787
| Closed | -$4.55M | – | 1847 |
|
|
2020
Q3 | $4.55M | Buy |
45,787
+41,678
| +1,014% | +$4.03M | 0.03% | 542 |
|
|
2020
Q2 | $367K | Sell |
4,109
-208,854
| -98% | -$17.5M | ﹤0.01% | 1283 |
|
|
2020
Q1 | $15.3M | Sell |
212,963
-199,921
| -48% | -$18M | 0.15% | 145 |
|
|
2019
Q4 | $41.2M | Buy |
412,884
+204,557
| +98% | +$19.4M | 0.28% | 78 |
|
|
2019
Q3 | $19.1M | Buy |
208,327
+41,332
| +25% | +$3.65M | 0.15% | 160 |
|
|
2019
Q2 | $15.2M | Buy |
166,995
+51,542
| +45% | +$4.42M | 0.12% | 193 |
|
|
2019
Q1 | $9.58M | Buy |
115,453
+97,244
| +534% | +$7.39M | 0.09% | 271 |
|
|
2018
Q4 | $1.23M | Buy |
+18,209
| New | +$1.31M | 0.01% | 854 |
|
|
2017
Q1 | – | Sell |
-390,898
| Closed | -$19M | – | 317 |
|
|
2016
Q4 | $19M | Buy |
390,898
+244,710
| +167% | +$11.6M | 0.12% | 198 |
|
|
2016
Q3 | $6.99M | Sell |
146,188
-208,899
| -59% | -$9.95M | 0.05% | 339 |
|
|
2016
Q2 | $16.4M | Sell |
355,087
-6,659
| -2% | -$320K | 0.14% | 171 |
|
|
2016
Q1 | $18.1M | Buy |
+361,746
| New | +$17.2M | 0.17% | 137 |
|
|
2015
Q2 | – | Sell |
-24,202
| Closed | -$1.27M | – | 886 |
|
|
2015
Q1 | $1.27M | Buy |
+24,202
| New | +$1.24M | 0.02% | 536 |
|
|
2014
Q3 | – | Sell |
-8,580
| Closed | -$449K | – | 863 |
|
|
2014
Q2 | $449K | Buy |
+8,580
| New | +$451K | 0.01% | 619 |
|
Other funds holding AME
Marshall Wace's AME Position: Q2 2026 in Review
Marshall Wace increased its Ametek (AME) stake by 59% in Q2 2026, buying an estimated $23.5M and bringing the position to 275,411 shares worth $66.6M. The position accounts for 0.05% of the portfolio, ranked #287.
Marshall Wace first reported a position in AME in Q2 2014 and has held it in 28 quarters since. The position peaked at $68.9M in Q2 2022. 1,196 funds tracked by Wall St. Rank hold AME as of Q2 2026.
- Marshall Wace held 275,411 shares of Ametek worth $66.6M as of Q2 2026.
- Marshall Wace bought 102,141 Ametek shares in Q2 2026, an estimated $23.5M.
- Ametek made up 0.05% of Marshall Wace's portfolio in Q2 2026, its #287 holding.
- Marshall Wace first reported a position in Ametek in Q2 2014 and has held it in 28 quarters since.
- Marshall Wace's Ametek position peaked at $68.9M in Q2 2022.
- 1,196 funds tracked by Wall St. Rank held Ametek as of Q2 2026.
Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.