Jane Street’s Amplitude AMPL Stock Holding History

Jane Street’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	$229K	Buy	33,600 +15,500	+86%	+$128K	﹤0.01%	9832
2025 Q4	$210K	Sell	18,100 -15,900	-47%	-$167K	﹤0.01%	9627
2025 Q3	$364K	Buy	+34,000	New	+$403K	﹤0.01%	8524
2025 Q2	–	Sell	-10,300	Closed	-$105K	–	9535
2025 Q1	$105K	Buy	+10,300	New	+$122K	﹤0.01%	8789
2024 Q2	–	Sell	-100,300	Closed	-$1.09M	–	9278
2024 Q1	$1.09M	Buy	+100,300	New	+$1.23M	﹤0.01%	5254
2022 Q4	–	Sell	-39,800	Closed	-$616K	–	9071
2022 Q3	$616K	Sell	39,800 -34,400	-46%	-$552K	﹤0.01%	6301
2022 Q2	$1.06M	Sell	74,200 -10,000	-12%	-$175K	﹤0.01%	5379
2022 Q1	$1.55M	Buy	+84,200	New	+$2.56M	﹤0.01%	5236

Other funds holding AMPL

Wellington Management Group Boston, Massachusetts $535B AUM 26.23% 1-Year Est. Return

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 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 Edinburgh, United Kingdom $97.9B AUM 20.73% 1-Year Est. Return

Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return

State Street Boston, Massachusetts $2.9T AUM 29.55% 1-Year Est. Return

Point72 Asset Management Stamford, Connecticut $78.1B AUM 55.25% 1-Year Est. Return

Jane Street's AMPL Position: Q1 2026 in Review

Jane Street reduced its Amplitude (AMPL) stake by 90% in Q1 2026, selling an estimated $1.67M and leaving 23,756 shares worth $162K. The position accounts for ﹤0.01% of the portfolio, ranked #10325.

Jane Street first reported a position in AMPL in Q3 2021 and has held it in 15 quarters since. The position peaked at $5.3M in Q3 2025. 218 funds tracked by Wall St. Rank hold AMPL as of Q1 2026.

Jane Street held 23,756 shares of Amplitude worth $162K as of Q1 2026.
Jane Street sold 202,918 Amplitude shares in Q1 2026, an estimated $1.67M.
Amplitude made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #10325 holding.
Jane Street first reported a position in Amplitude in Q3 2021 and has held it in 15 quarters since.
Jane Street's Amplitude position peaked at $5.3M in Q3 2025.
218 funds tracked by Wall St. Rank held Amplitude as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.