PEAK6’s American Tower AMT Stock Holding History

PEAK6’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	$1.09M	Sell	6,691 -24,318	-78%	-$4.38M	﹤0.01%	1643
2026 Q1	$5.35M	Buy	31,009 +15,399	+99%	+$2.77M	0.01%	867
2025 Q4	$2.74M	Buy	+15,610	New	+$2.84M	0.01%	1261

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

PEAK6's AMT Position: Q2 2026 in Review

PEAK6 reduced its American Tower (AMT) stake by 78% in Q2 2026, selling an estimated $4.38M and leaving 6,691 shares worth $1.09M. The position accounts for ﹤0.01% of the portfolio, ranked #1643.

PEAK6 first reported a position in AMT in Q4 2025 and has held it in 3 quarters since. The position peaked at $5.35M in Q1 2026. 1,743 funds tracked by Wall St. Rank hold AMT as of Q2 2026.

PEAK6 held 6,691 shares of American Tower worth $1.09M as of Q2 2026.
PEAK6 sold 24,318 American Tower shares in Q2 2026, an estimated $4.38M.
American Tower made up ﹤0.01% of PEAK6's portfolio in Q2 2026, its #1643 holding.
PEAK6 first reported a position in American Tower in Q4 2025 and has held it in 3 quarters since.
PEAK6's American Tower position peaked at $5.35M in Q1 2026.
1,743 funds tracked by Wall St. Rank held American Tower as of Q2 2026.

Based on PEAK6's 13F filing for Q2 2026, filed 13 Aug 2026.