Marshall Wace’s American Tower AMT Stock Holding History

Marshall Wace’s Portfolio AMT Stock Details AMT Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$16.4K	Sell	100 -100	-50%	-$18K	﹤0.01%	3061
2026 Q1	$34.5K	Hold	200	–	–	﹤0.01%	3012
2025 Q4	$35.1K	Buy	+200	New	+$36.4K	﹤0.01%	2801

Other funds holding AMT

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

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

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

Cohen & Steers New York $63.2B AUM 17.15% 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

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

Lazard Asset Management New York $66.1B AUM 33.53% 1-Year Est. Return

Marshall Wace's AMT Position: Q2 2026 in Review

Marshall Wace increased its American Tower (AMT) stake by 79% in Q2 2026, buying an estimated $107M and bringing the position to 1,343,001 shares worth $220M. The position accounts for 0.17% of the portfolio, ranked #81.

Marshall Wace first reported a position in AMT in Q1 2014 and has held it in 25 quarters since. 1,752 funds tracked by Wall St. Rank hold AMT as of Q2 2026.

Marshall Wace held 1,343,001 shares of American Tower worth $220M as of Q2 2026.
Marshall Wace bought 591,747 American Tower shares in Q2 2026, an estimated $107M.
American Tower made up 0.17% of Marshall Wace's portfolio in Q2 2026, its #81 holding.
Marshall Wace first reported a position in American Tower in Q1 2014 and has held it in 25 quarters since.
1,752 funds tracked by Wall St. Rank held American Tower as of Q2 2026.

Based on Marshall Wace's 13F filing for Q2 2026, filed 13 Aug 2026.