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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
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 $5.72T AUM 30.48% 1-Year Est. Return
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
JP Morgan Chase
JP Morgan Chase New York $1.56T AUM 27.86% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Cohen & Steers
Cohen & Steers New York $57.6B AUM 8.03% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return
Deutsche Bank
Deutsche Bank Frankfurt Am Main Ge, Germany $303B AUM 30.15% 1-Year Est. Return

CSS LLC's AMT Position: Q1 2026 in Review

CSS LLC increased its American Tower (AMT) stake by 3.7% in Q1 2026, buying an estimated $19.8K and bringing the position to 3,080 shares worth $532K. The position accounts for 0.03% of the portfolio, ranked #506.

CSS LLC first reported a position in AMT in Q4 2017 and has held it in 4 quarters since. 1,750 funds tracked by Wall St. Rank hold AMT as of Q1 2026.

  • CSS LLC held 3,080 shares of American Tower worth $532K as of Q1 2026.
  • CSS LLC bought 110 American Tower shares in Q1 2026, an estimated $19.8K.
  • American Tower made up 0.03% of CSS LLC's portfolio in Q1 2026, its #506 holding.
  • CSS LLC first reported a position in American Tower in Q4 2017 and has held it in 4 quarters since.
  • 1,750 funds tracked by Wall St. Rank held American Tower as of Q1 2026.

Based on CSS LLC's 13F filing for Q1 2026, filed 15 May 2026.