What does CUSIP 03213A104 represent in this 13F holders report?

CUSIP 03213A104 is the security identifier for AMPL - Amplitude, Inc. - CLASS A COMMON STOCK used to aggregate holder disclosures.

How many institutions held AMPL - Amplitude, Inc. - CLASS A COMMON STOCK in Q4 2025?

209 institutional investors reported AMPL - Amplitude, Inc. - CLASS A COMMON STOCK for Q4 2025. Use the holders table for investor-level position and value details.

Amplitude, Inc. - CLASS A COMMON STOCK (AMPL)

CUSIP: 03213A104

Q4 2025 13F Holders as of 31 Dec 2025

Security type / class: Equity / CLASS A COMMON STOCK
Total 13F shares: 80,377,349
Total 13F value: $930,739,871
Share change: +2,767,299
Put/Call ratio: 25%
SEC-reported price per share: $11.58
Number of holders: 209
Value change: +$23,920,480
Number of buys: 120
Number of sells: 83
Shares outstanding: 103,093,733

Security key

03213A104

Report period

Q4 2025

Institutions

209

Top holders

AMPL full security history Ownership snapshot Full 13F holder table Newer quarter: Q3 2026 Amplitude, Inc. SEC filings Amplitude, Inc. company facts

Broader feeds

Latest 13F filings Latest 13D/G filings Investors directory

Reporting periods

Holder history for CUSIP 03213A104

Newer quarter: Q3 2026

Recent filing periods:

Q3 2026

Ownership snapshot

Top reported holders of AMPL - Amplitude, Inc. - CLASS A COMMON STOCK (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader

SC US (TTGP), LTD.

Disclosed value leader

Battery Management Corp.

Comparable rows

3/15

Latest evidence

30 Jun 2025

13D/G 3/4/5 13F Lead comparable stake: 9.9% 12 rows are not safely comparable across share classes. 13D/G row: SC US (TTGP), LTD. Showing 1-6 of 15 holder rows.

Quick read

SC US (TTGP), LTD. leads the comparable SEC ownership view at 9.9%.

3 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens SC US (TTGP), LTD.'s linked filing trail.

Comparable ownership Top 3

SC US (TTGP), LTD. 9.9%

GIC Private Ltd 4.8%

Battery Ventures XI-A, L.P. 4.7%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-6 of 15 holder rows

Holder	Evidence	Ownership %	Position	12M Net Δ	As of
SC US (TTGP), LTD.	13D/G 3/4/5 13F SC US (TTGP), LTD. ("SC US (TTGP)") · 10%+ Owner · Company 13D/G 3/4/5 13F	9.9% Reported 13D/G · 20 Feb 2025	$90,681,044 10,223,342 shares	$0	20 Feb 2025
GIC Private Ltd	13D/G 13D/G	4.8% Reported 13D/G · 30 Jun 2025	$63,317,845 4,977,818 shares	$0	30 Jun 2025
Battery Ventures XI-A, L.P.	13D/G Neeraj Agrawal 13D/G	4.7% Reported 13D/G · 31 Mar 2025	$41,385,513 4,665,785 shares	$0	31 Mar 2025
Battery Management Corp.	3/4/5 10%+ Owner 3/4/5	— mixed-class rows	$128,515,578 11,047,393 shares mixed-class rows	—	09 May 2022
Dharmesh Thakker	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$112,847,040 8,984,637 shares	—	05 Jul 2023
Battery Ventures Select Fund I, L.P.	3/4/5 10%+ Owner 3/4/5	— denominator unverified	$112,786,514 8,979,818 shares	—	02 Jan 2024

How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q4 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions

209

80,377,349

Rows available

209

Investor	Option	Weight %	Change %	SEC-reported value	* Price	Shares	Share Change	Activity	Report Period

^* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.

Compare Q4 2025 vs Q3 2025 Across Filers

Q3 2025 holders

200

Q4 2025 holders

209

Holder diff

Investor	Q3 2025 Shares	Q4 2025 Shares	Share Diff	Share Chg %	Q3 2025 value	Q4 2025 value	Value change	Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend

Quarterly Value Trend

Quarterly Shares Trend