Twin Tree Management’s Ametek AME Stock Holding History

Twin Tree Management’s Portfolio AME Stock Details AME Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2017 Q1	–	Sell	-31,600	Closed	-$1.54M	–	990
2016 Q4	$1.54M	Buy	+31,600	New	+$1.5M	0.02%	693
2016 Q3	–	Sell	-10,100	Closed	-$467K	–	1123
2016 Q2	$467K	Buy	+10,100	New	+$486K	0.01%	846
2015 Q4	–	Sell	-10,100	Closed	-$528K	–	1368
2015 Q3	$528K	Buy	+10,100	New	+$545K	0.01%	766
2015 Q1	–	Sell	-7,700	Closed	-$405K	–	1125
2014 Q4	$405K	Buy	+7,700	New	+$391K	0.01%	808

Other funds holding AME

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

T. Rowe Price Associates Baltimore, Maryland $999B AUM 46.22% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

Norges Bank Oslo, Norway $1T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Twin Tree Management's AME Position: Q2 2026 in Review

Twin Tree Management opened a new position in Ametek (AME) in Q2 2026: 7,361 shares worth $1.78M. The stake represents 0.03% of the portfolio and ranks #612 among its holdings. This is a return to the name: Twin Tree Management previously reported a position in AME as recently as Q4 2023.

Twin Tree Management first reported a position in AME in Q3 2015 and has held it in 17 quarters since. The position peaked at $14.9M in Q4 2023. 1,200 funds tracked by Wall St. Rank hold AME as of Q2 2026.

Twin Tree Management held 7,361 shares of Ametek worth $1.78M as of Q2 2026.
Ametek was a new Twin Tree Management position in Q2 2026.
Ametek made up 0.03% of Twin Tree Management's portfolio in Q2 2026, its #612 holding.
Twin Tree Management first reported a position in Ametek in Q3 2015 and has held it in 17 quarters since.
Twin Tree Management's Ametek position peaked at $14.9M in Q4 2023.
1,200 funds tracked by Wall St. Rank held Ametek as of Q2 2026.

Based on Twin Tree Management's 13F filing for Q2 2026, filed 12 Aug 2026.