Portolan Capital Management, LLC

Position in AMPL — Amplitude, Inc.

CIK 1350290 BOSTON, MA

Position in AMPL

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$2,452,424

-$4,033,487 QoQ

Shares Held

359,593

-35.8% QoQ

Ownership

0.288%

of shares outstanding

% of Portfolio

0.13%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Dec 2025

2 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Technology · as of Jun 30, 2026

Portolan Capital Management, LLC holds $86,443,568 across 4 Software - Application names.

#	Ticker	Company	Shares	Value (USD)
1	DAVE	Dave Inc./DE	105,338	$39,247,885
2	SRAD	Sportradar Group AG	1,819,949	$27,244,636
3	ADEA	Adeia Inc.	443,060	$14,589,965
4	RDVT	Red Violet, Inc.	84,135	$5,361,082

2 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$2,452,424	359,593	-35.8%	Shares	Sole	2026-05-15
2025-12-31	$6,485,911	560,096	—	Shares	Sole	2026-02-17
No filing history on record for this holder in this stock.