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Portolan Capital Management’s Amplitude AMPL Stock Holding History

Portolan Capital Management’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
Q2 		– Sell
-359,593
Closed -$2.45M – 150
2026
Q1 		$2.45M Sell
359,593
-200,503
-36% -$1.65M 0.13% 121
2025
Q4 		$6.49M Buy
+560,096
New +$5.89M 0.35% 91

Other funds holding AMPL

Wellington Management Group
Wellington Management Group Boston, Massachusetts $580B AUM 38.23% 1-Year Est. Return
BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
SUT
SC US (TTGP) Menlo Park, California $31.9B AUM 28.45% 1-Year Est. Return
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
TI
Trigran Investments Northbrook, Illinois $545M AUM 56.2% 1-Year Est. Return
Baillie Gifford & Co
Baillie Gifford & Co Edinburgh, United Kingdom $110B AUM 4.8% 1-Year Est. Return

Portolan Capital Management's AMPL Position: Q2 2026 in Review

Portolan Capital Management sold out of Amplitude (AMPL) in Q2 2026, closing a stake of 359,593 shares — an estimated $2.45M sold.

Portolan Capital Management first reported a position in AMPL in Q4 2025 and held it in 2 quarters. The position peaked at $6.49M in Q4 2025. 202 funds tracked by Wall St. Rank hold AMPL as of Q2 2026.

  • Portolan Capital Management reported no remaining Amplitude position as of Q2 2026 after selling out during the quarter.
  • Portolan Capital Management sold 359,593 Amplitude shares in Q2 2026, an estimated $2.45M.
  • Portolan Capital Management first reported a position in Amplitude in Q4 2025 and held it in 2 quarters.
  • Portolan Capital Management's Amplitude position peaked at $6.49M in Q4 2025.
  • 202 funds tracked by Wall St. Rank held Amplitude as of Q2 2026.

Based on Portolan Capital Management's 13F filing for Q2 2026, filed 14 Aug 2026.