Mariner
AMPL icon

Mariner’s Amplitude AMPL Stock Holding History

Mariner’s Portfolio AMPL Stock Details AMPL Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$246K Buy
36,018
+1,106
+3% +$9.13K ﹤0.01% 3037
2025
Q4 		$405K Buy
34,912
+14,237
+69% +$150K ﹤0.01% 2606
2025
Q3 		$222K Buy
+20,675
New +$245K ﹤0.01% 3088

Other funds holding AMPL

Wellington Management Group
Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return
BlackRock
BlackRock New York $5.72T AUM 30.48% 1-Year Est. Return
VPM
Vanguard Portfolio Management Malvern, Pennsylvania $1.91T AUM
VCM
Vanguard Capital Management Malvern, Pennsylvania $4.04T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $1.9T AUM 41.92% 1-Year Est. Return
SUT
SC US (TTGP) Menlo Park, California $9.25B AUM 20.49% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return
Point72 Asset Management
Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

Mariner's AMPL Position: Q1 2026 in Review

Mariner increased its Amplitude (AMPL) stake by 3.2% in Q1 2026, buying an estimated $9.13K and bringing the position to 36,018 shares worth $246K. The position accounts for ﹤0.01% of the portfolio, ranked #3037.

Mariner first reported a position in AMPL in Q3 2025 and has held it in 3 quarters since. The position peaked at $405K in Q4 2025. 218 funds tracked by Wall St. Rank hold AMPL as of Q1 2026.

  • Mariner held 36,018 shares of Amplitude worth $246K as of Q1 2026.
  • Mariner bought 1,106 Amplitude shares in Q1 2026, an estimated $9.13K.
  • Amplitude made up ﹤0.01% of Mariner's portfolio in Q1 2026, its #3037 holding.
  • Mariner first reported a position in Amplitude in Q3 2025 and has held it in 3 quarters since.
  • Mariner's Amplitude position peaked at $405K in Q4 2025.
  • 218 funds tracked by Wall St. Rank held Amplitude as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.