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CSS LLC’s American Tower AMT Stock Holding History

CSS LLC’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 		$600K Buy
3,666
+586
+19% +$105K 0.02% 498
2026
Q1 		$532K Buy
3,080
+110
+4% +$19.8K 0.03% 506
2025
Q4 		$521K Buy
+2,970
New +$540K 0.02% 527
2019
Q3 		– Sell
-800
Closed -$164K – 611
2019
Q2 		$164K Buy
+800
New +$161K 0.01% 478
2018
Q1 		– Sell
-900
Closed -$128K – 520
2017
Q4 		$128K Buy
+900
New +$128K 0.01% 531

Other funds holding AMT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $63.2B AUM 17.15% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return
Lazard Asset Management
Lazard Asset Management New York $66.1B AUM 33.53% 1-Year Est. Return

CSS LLC's AMT Position: Q2 2026 in Review

CSS LLC increased its American Tower (AMT) stake by 19% in Q2 2026, buying an estimated $105K and bringing the position to 3,666 shares worth $600K. The position accounts for 0.02% of the portfolio, ranked #498.

CSS LLC first reported a position in AMT in Q4 2017 and has held it in 5 quarters since. 1,754 funds tracked by Wall St. Rank hold AMT as of Q2 2026.

  • CSS LLC held 3,666 shares of American Tower worth $600K as of Q2 2026.
  • CSS LLC bought 586 American Tower shares in Q2 2026, an estimated $105K.
  • American Tower made up 0.02% of CSS LLC's portfolio in Q2 2026, its #498 holding.
  • CSS LLC first reported a position in American Tower in Q4 2017 and has held it in 5 quarters since.
  • 1,754 funds tracked by Wall St. Rank held American Tower as of Q2 2026.

Based on CSS LLC's 13F filing for Q2 2026, filed 14 Aug 2026.