Amplitude, Inc.

AMPLNASDAQ

$14.52+0.22 (+1.54%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Amplitude, Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+42.1%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
Wellington Management Group LLP	Not reported	$84.8M	0.01%	Reduce 0.61%
BlackRock, Inc.	Not reported	$76.8M	0.00%	Not reported
Vanguard Portfolio Management LLC	Not reported	$46.5M	0.00%	Not reported
FMR LLC	Not reported	$45.7M	0.00%	Not reported
Vanguard Capital Management LLC	Not reported	$30.1M	0.00%	Not reported
SC US (Ttgp), Ltd.	Not reported	$21.4M	0.07%	Not reported
State Street Corp	Not reported	$19.9M	0.00%	Not reported
Geode Capital Management, LLC	Not reported	$19M	0.00%	Not reported
Trigran Investments, Inc.	Not reported	$17.8M	3.26%	Add 510.00%
Baillie Gifford & Co	Not reported	$13.6M	0.01%	Reduce 32.44%
Optimus Prime Fund Management Co., Ltd.	Not reported	$12.1M	0.89%	Not reported
AQR Capital Management LLC	Not reported	$11.5M	0.00%	Not reported
Point72 Asset Management, L.P.	Not reported	$10.8M	0.01%	Not reported
Morgan Stanley	Not reported	$8.8M	0.00%	Not reported
Gagnon Securities LLC	Not reported	$8.07M	1.56%	Reduce 0.41%
Royce & Associates LP	Not reported	$8.04M	0.06%	Not reported
Squarepoint Ops LLC	Not reported	$7.82M	0.01%	Not reported
Jacobs Levy Equity Management, Inc	Not reported	$7.34M	0.03%	Not reported
Northern Trust Corp	Not reported	$7.07M	0.00%	Not reported
Dimensional Fund Advisors LP	Not reported	$6.86M	0.00%	Not reported
Citadel Advisors LLC	Not reported	$6.68M	0.00%	Not reported
Meros Investment Management, LP	Not reported	$6.33M	2.01%	Reduce 28.86%
Charles Schwab Investment Management Inc	Not reported	$6.15M	0.00%	Not reported
Monimus Capital Management, LP	Not reported	$6M	1.39%	Reduce 38.00%
CenterBook Partners LP	Not reported	$5.9M	0.29%	Add 1785.12%
Vanguard Fiduciary Trust Co	Not reported	$5.18M	0.00%	Not reported
ArrowMark Colorado Holdings LLC	Not reported	$5.03M	0.21%	Reduce 47.69%
Gagnon Advisors, LLC	Not reported	$4.86M	3.09%	Not reported
Cerity Partners LLC	Not reported	$3.62M	0.00%	Not reported
Acadian Asset Management LLC	Not reported	$3.57M	0.00%	Not reported
Two Sigma Investments, LP	Not reported	$3.18M	0.00%	Not reported
Quantinno Capital Management LP	Not reported	$3.08M	0.00%	Add 8.70%
Millennium Management LLC	Not reported	$2.94M	0.00%	Not reported
Toronado Partners, LLC	Not reported	$2.81M	7.89%	Add 15.03%
Susquehanna Fundamental Investments, LLC	Not reported	$2.71M	0.05%	Add 198.38%
Mercer Global Advisors Inc	Not reported	$2.62M	0.00%	Not reported
Man Group plc	Not reported	$2.59M	0.00%	Not reported
Voya Investment Management LLC	Not reported	$2.47M	0.00%	Not reported
UBS Group AG	Not reported	$2.46M	0.00%	Not reported
Goldman Sachs Group Inc	Not reported	$2.44M	0.00%	Not reported
S Squared Technology, LLC	Not reported	$2.41M	0.75%	Add 109.71%
Madison Asset Management, LLC	Not reported	$2.39M	0.03%	Reduce 0.53%
Alliancebernstein L.P.	Not reported	$2.08M	0.00%	Not reported
Numerai GP LLC	Not reported	$2.26M	0.18%	Add 1376.74%
Bank of New York Mellon Corp	Not reported	$2.2M	0.00%	Not reported
JPMorgan Chase & Co	Not reported	$2.09M	0.00%	Not reported
Nuveen, LLC	Not reported	$2.03M	0.00%	Not reported
Bank of America Corp	Not reported	$1.87M	0.00%	Not reported
Circumference Group LLC	Not reported	$1.82M	3.95%	Not reported
Verition Fund Management LLC	Not reported	$1.73M	0.01%	Not reported

50 of 188 holders

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