AMPL · Amplitude, Inc. · Shareholders & Ownership

$16.70 +0.60 (+3.73%) At close · Nov 6 Play latest call Q1 2026 earnings call transcript

Russell 2000 member Rebalance outlook locked

Market Cap

$2.13B

127.50M

Volume · Nov 6 2.41M Avg daily vol (3M) 1.87M

Every disclosed holder of AMPL in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns AMPL

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	211	81,117,704	63.62%	Yes
Insiders (Forms 3, 4, 5)	0	0	0.00%	No
13D/G-only blocks	6	28,060,556	22.01%	Yes
Remaining	—	18,319,696	14.37%	Rest
Registered funds (N-PORT, not summed)	157	30,577,426	23.98%	No

Shares outstanding: 127,497,956, the issuer's latest cover-page count restated onto today's split basis.

Insiders are listed but not summed: the issuer has more than one class of common stock and Forms 3, 4 and 5 report one issuer-wide balance across them.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of AMPL

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	WELLINGTON MANAGEMENT GROUP LLP 13F CIK 902219 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	11,086,006	8.70%	-68,550	Jun 30, 2026	carried, not yet filed for the newest quarter
2	BlackRock, Inc. 13F CIK 2012383 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	10,044,780	7.88%	-117,358	Jun 30, 2026	carried, not yet filed for the newest quarter
2.1	BlackRock, Inc. 13G CIK 2012383 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	7,935,962	6.22%	—	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
2.2	iShares Russell 2000 ETF Fund S000004344 · Registered fund · Jun 30, 2026 iShares Trust, not summed	2,536,255	1.99%	+149,564	Jun 30, 2026	iShares Trust, not summed
2.3	iShares Russell 2000 Growth ETF Fund S000004343 · Registered fund · Jun 30, 2026 iShares Trust, not summed	885,069	0.69%	+84,191	Jun 30, 2026	iShares Trust, not summed
2.4	BlackRock Advantage Small Cap Core Fund Fund S000039982 · Registered fund · Aug 31, 2026 BlackRock Funds, not summed	591,641	0.46%	-27,264	Aug 31, 2026	BlackRock Funds, not summed
2.5	iShares U.S. Small-Cap Equity Factor ETF Fund S000048624 · Registered fund · Jul 31, 2026 iShares Trust, not summed	244,118	0.19%	+22,663	Jul 31, 2026	iShares Trust, not summed
3	VANGUARD PORTFOLIO MANAGEMENT LLC 13F CIK 2100121 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	6,083,939	4.77%	-81,152	Jun 30, 2026	carried, not yet filed for the newest quarter
4	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	5,979,436	4.69%	+2,668,152	Jun 30, 2026	carried, not yet filed for the newest quarter
4.1	FMR LLC 13G CIK 315066 · Holding company · Jun 30, 2026 Rule 13d-1(b), qualified institution, not summed	5,979,436	4.69%	+2,690,956	Jun 30, 2026	Rule 13d-1(b), qualified institution, not summed
4.2	Select Software and IT Services Portfolio Fund S000007483 · Registered fund · Aug 31, 2026 Fidelity Select Portfolios, not summed	4,743,676	3.72%	+250,400	Aug 31, 2026	Fidelity Select Portfolios, not summed
4.3	Fidelity Small Cap Index Fund Fund S000033638 · Registered fund · Jul 31, 2026 Fidelity Salem Street Trust, not summed	1,055,336	0.83%	+83,986	Jul 31, 2026	Fidelity Salem Street Trust, not summed
4.4	Fidelity Extended Market Index Fund Fund S000006021 · Registered fund · Aug 31, 2026 Fidelity Concord Street Trust, not summed	470,089	0.37%	-23,959	Aug 31, 2026	Fidelity Concord Street Trust, not summed
4.5	Fidelity MSCI Information Technology Index ETF Fund S000042577 · Registered fund · Jul 31, 2026 FIDELITY COVINGTON TRUST, not summed	310,577	0.24%	+33,718	Jul 31, 2026	FIDELITY COVINGTON TRUST, not summed
5	GIC Private Ltd 13G CIK 936828 · Unknown · Jun 30, 2025 Rule 13d-1(d), exempt investor	4,977,818	3.90%	—	Jun 30, 2025	Rule 13d-1(d), exempt investor
6	Neeraj Agrawal 13G CIK 1665603 · Unknown · Mar 31, 2025 Rule 13d-1(d), exempt investor	4,665,785	3.66%	-2,928,474	Mar 31, 2025	Rule 13d-1(d), exempt investor
7	VANGUARD CAPITAL MANAGEMENT LLC 13F CIK 2100119 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,939,697	3.09%	-151,623	Jun 30, 2026	carried, not yet filed for the newest quarter
8	Grady Patrick W Insider CIK 1700423 · Jun 9, 2026 Director, issuer-wide, not summed	2,884,757	2.26%	+24,857	Jun 9, 2026	Director, issuer-wide, not summed
9	SC US (TTGP), LTD. 13F CIK 1607841 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	2,798,951	2.20%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
10	VANGUARD TOTAL STOCK MARKET INDEX FUND Fund S000002848 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	2,764,927	2.17%	-164,600	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
11	STATE STREET CORP 13F CIK 93751 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,604,696	2.04%	+175,389	Jun 30, 2026	carried, not yet filed for the newest quarter
11.1	State Street(R) SPDR(R) S&P(R) Software & Services ETF Fund S000012329 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	425,712	0.33%	+39,322	Jun 30, 2026	SPDR SERIES TRUST, not summed
11.2	State Street(R) SPDR(R) FactSet Innovative Technology ETF Fund S000051577 · Registered fund · Jun 30, 2026 SPDR SERIES TRUST, not summed	58,027	0.05%	-416	Jun 30, 2026	SPDR SERIES TRUST, not summed
11.3	STATE STREET SMALL/MID CAP EQUITY INDEX PORTFOLIO Fund S000050332 · Registered fund · Jun 30, 2026 STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed	35,800	0.03%	+2,300	Jun 30, 2026	STATE STREET INSTITUTIONAL INVESTMENT TRUST, not summed
11.4	State Street(R) SPDR(R) Portfolio MSCI Global Stock Market ETF Fund S000036082 · Registered fund · Jun 30, 2026 SPDR INDEX SHARES FUNDS, not summed	5,467	0.00%	+663	Jun 30, 2026	SPDR INDEX SHARES FUNDS, not summed
11.5	State Street Total Return V.I.S. Fund Fund S000001637 · Registered fund · Jun 30, 2026 STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed	2,543	0.00%	+411	Jun 30, 2026	STATE STREET VARIABLE INSURANCE SERIES FUNDS INC, not summed
12	GEODE CAPITAL MANAGEMENT, LLC 13F CIK 1214717 · Registered investment adviser · Sep 30, 2026	2,598,272	2.04%	+120,711	Sep 30, 2026
13	Trigran Investments, Inc. 13F CIK 1336800 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,321,209	1.82%	+1,940,683	Jun 30, 2026	carried, not yet filed for the newest quarter
14	VANGUARD INFORMATION TECHNOLOGY INDEX FUND Fund S000004452 · Registered fund · Aug 31, 2026 VANGUARD WORLD FUND, not summed	2,241,968	1.76%	+7,091	Aug 31, 2026	VANGUARD WORLD FUND, not summed
15	Todd C. Chaffee 13G CIK 1640274 · Unknown · Dec 31, 2023 Rule 13d-1(d), exempt investor, unconfirmed, last confirmed Dec 31, 2023	2,121,984	1.66%	—	Dec 31, 2023	Rule 13d-1(d), exempt investor, unconfirmed, last confirmed Dec 31, 2023
16	VANGUARD SMALL-CAP INDEX FUND Fund S000002845 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	2,022,910	1.59%	-149,466	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
17	HANSEN THOMAS NEERGAARD Insider CIK 1728084 · Feb 15, 2026 fmr Chief Revenue Officer, issuer-wide, not summed	1,845,845	1.45%	-69,142	Feb 15, 2026	fmr Chief Revenue Officer, issuer-wide, not summed
18	BAILLIE GIFFORD & CO 13F CIK 1088875 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,779,555	1.40%	-854,595	Jun 30, 2026	carried, not yet filed for the newest quarter
19	Crook Nathaniel Glenn Insider CIK 2121274 · Sep 4, 2026 Chief Commercial Officer, issuer-wide, not summed	1,622,696	1.27%	-300,000	Sep 4, 2026	Chief Commercial Officer, issuer-wide, not summed
20	Optimus Prime Fund Management Co., Ltd. 13F CIK 1732539 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,580,100	1.24%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
21	AQR CAPITAL MANAGEMENT LLC 13F CIK 1167557 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,508,350	1.18%	+273,322	Jun 30, 2026	carried, not yet filed for the newest quarter
21.1	AQR Small Cap Multi-Style Fund Fund S000040064 · Registered fund · Jun 30, 2026 AQR Funds, not summed	32,356	0.03%	—	Jun 30, 2026	AQR Funds, not summed
22	MACKENZIE FINANCIAL CORP 13F CIK 919859 · Registered investment adviser · Sep 30, 2026	1,460,073	1.15%	+1,460,073	Sep 30, 2026
23	Point72 Asset Management, L.P. 13F CIK 1603466 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,409,424	1.11%	-1,001,876	Jun 30, 2026	carried, not yet filed for the newest quarter
24	Casey Andrew Insider CIK 2032390 · Aug 17, 2026 Chief Financial Officer, issuer-wide, not summed	1,363,338	1.07%	-72,814	Aug 17, 2026	Chief Financial Officer, issuer-wide, not summed
25	VANGUARD SMALL-CAP GROWTH INDEX FUND Fund S000002846 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,161,457	0.91%	-60,469	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
26	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	1,149,750	0.90%	+229,244	Jun 30, 2026	carried, not yet filed for the newest quarter
26.1	E*TRADE No Fee Total Market Index Fund Fund S000090722 · Registered fund · Jul 31, 2026 E Trade Trust, not summed	321	0.00%	0	Jul 31, 2026	E Trade Trust, not summed
27	VANGUARD EXTENDED MARKET INDEX FUND Fund S000002841 · Registered fund · Jun 30, 2026 VANGUARD INDEX FUNDS, not summed	1,083,249	0.85%	+18,250	Jun 30, 2026	VANGUARD INDEX FUNDS, not summed
28	ROYCE & ASSOCIATES LP 13F CIK 906304 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,050,976	0.82%	+1,050,976	Jun 30, 2026	carried, not yet filed for the newest quarter
28.1	Royce Micro-Cap Fund Fund S000009506 · Registered fund · Jun 30, 2026 ROYCE FUND, not summed	277,490	0.22%	—	Jun 30, 2026	ROYCE FUND, not summed
28.2	Royce Capital Fund - Micro-Cap Portfolio Fund S000009496 · Registered fund · Jun 30, 2026 ROYCE CAPITAL FUND, not summed	91,538	0.07%	—	Jun 30, 2026	ROYCE CAPITAL FUND, not summed
29	GAGNON SECURITIES LLC 13F CIK 1125725 · Registered investment adviser · Sep 30, 2026	1,027,363	0.81%	-28,145	Sep 30, 2026
30	Squarepoint Ops LLC 13F CIK 1642575 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,021,647	0.80%	+309,252	Jun 30, 2026	carried, not yet filed for the newest quarter
31	JACOBS LEVY EQUITY MANAGEMENT, INC 13F CIK 884414 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	959,626	0.75%	-771,811	Jun 30, 2026	carried, not yet filed for the newest quarter
32	Liu Curtis Insider CIK 1883022 · Aug 17, 2026 Director, Chief Technology Officer, 10% Owner, issuer-wide, not summed	950,316	0.75%	-53,878	Aug 17, 2026	Director, Chief Technology Officer, 10% Owner, issuer-wide, not summed
32.1	Curtis Liu 13G CIK 1883022 · Unknown · Nov 1, 2024 Rule 13d-1(d), exempt investor, unconfirmed, last confirmed Nov 1, 2024	8,094,719	6.35%	0	Nov 1, 2024	Rule 13d-1(d), exempt investor, unconfirmed, last confirmed Nov 1, 2024
33	NORTHERN TRUST CORP 13F CIK 73124 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	924,363	0.73%	+55,834	Jun 30, 2026	carried, not yet filed for the newest quarter
33.1	Small Cap Index Fund Fund S000001245 · Registered fund · Jun 30, 2026 Northern Funds, not summed	48,273	0.04%	+1,022	Jun 30, 2026	Northern Funds, not summed
33.2	Small Cap Core Fund Fund S000001244 · Registered fund · Jun 30, 2026 Northern Funds, not summed	11,900	0.01%	-536	Jun 30, 2026	Northern Funds, not summed
33.3	FlexShares Morningstar US Market Factor Tilt Index Fund Fund S000033312 · Registered fund · Jul 31, 2026 FlexShares Trust, not summed	11,376	0.01%	+8,758	Jul 31, 2026	FlexShares Trust, not summed
34	THE HARTFORD SMALL COMPANY FUND Fund S000003597 · Registered fund · Jul 31, 2026 HARTFORD MUTUAL FUNDS, INC, not summed	884,264	0.69%	+202,991	Jul 31, 2026	HARTFORD MUTUAL FUNDS, INC, not summed
35	CITADEL ADVISORS LLC 13F CIK 1423053 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	872,866	0.68%	+836,683	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Meros Investment Management, LP 13F CIK 1911372 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	827,977	0.65%	-335,849	Jun 30, 2026	carried, not yet filed for the newest quarter
37	CHARLES SCHWAB INVESTMENT MANAGEMENT INC 13F CIK 884546 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	803,643	0.63%	+69,942	Jun 30, 2026	carried, not yet filed for the newest quarter
37.1	Schwab U.S. Small-Cap ETF Fund S000026636 · Registered fund · Aug 31, 2026 SCHWAB STRATEGIC TRUST, not summed	450,076	0.35%	-4,059	Aug 31, 2026	SCHWAB STRATEGIC TRUST, not summed
37.2	Schwab Small-Cap Index Fund Fund S000005912 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	232,504	0.18%	+16,147	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
37.3	Schwab U.S. Broad Market ETF Fund S000026631 · Registered fund · Aug 31, 2026 SCHWAB STRATEGIC TRUST, not summed	76,558	0.06%	+25,118	Aug 31, 2026	SCHWAB STRATEGIC TRUST, not summed
37.4	Schwab Total Stock Market Index Fund Fund S000005913 · Registered fund · Jul 31, 2026 SCHWAB CAPITAL TRUST, not summed	68,571	0.05%	+28,571	Jul 31, 2026	SCHWAB CAPITAL TRUST, not summed
38	MONIMUS CAPITAL MANAGEMENT, LP 13F CIK 1848831 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	783,808	0.61%	-480,478	Jun 30, 2026	carried, not yet filed for the newest quarter
39	VANGUARD FIDUCIARY TRUST CO 13F CIK 933478 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	677,695	0.53%	+16,891	Jun 30, 2026	carried, not yet filed for the newest quarter
40	ArrowMark Colorado Holdings LLC 13F CIK 1483859 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	656,977	0.52%	-599,046	Jun 30, 2026	carried, not yet filed for the newest quarter
40.1	Meridian Small Cap Growth Fund Fund S000042770 · Registered fund · Jun 30, 2026 Meridian Fund Inc, not summed	388,581	0.30%	-145,070	Jun 30, 2026	Meridian Fund Inc, not summed
41	ROYCE MICRO-CAP TRUST, INC. Fund · Registered fund · Jun 30, 2026 ROYCE MICRO-CAP TRUST, INC., not summed	641,787	0.50%	—	Jun 30, 2026	ROYCE MICRO-CAP TRUST, INC., not summed
42	Gagnon Advisors, LLC 13F CIK 1599466 · Registered investment adviser · Sep 30, 2026	634,987	0.50%	0	Sep 30, 2026
43	VANGUARD RUSSELL 2000 INDEX FUND Fund S000030003 · Registered fund · Aug 31, 2026 VANGUARD SCOTTSDALE FUNDS, not summed	551,988	0.43%	+47,959	Aug 31, 2026	VANGUARD SCOTTSDALE FUNDS, not summed
44	Cerity Partners LLC 13F CIK 1566475 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	473,812	0.37%	+11,022	Jun 30, 2026	carried, not yet filed for the newest quarter
45	ACADIAN ASSET MANAGEMENT LLC 13F CIK 916542 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	467,502	0.37%	-332,528	Jun 30, 2026	carried, not yet filed for the newest quarter
46	HARTFORD SMALL COMPANY HLS FUND Fund S000003220 · Registered fund · Jun 30, 2026 HARTFORD SERIES FUND INC, not summed	433,080	0.34%	-7,378	Jun 30, 2026	HARTFORD SERIES FUND INC, not summed
47	MassMutual Small Cap Growth Equity Fund Fund S000003668 · Registered fund · Jun 30, 2026 MASSMUTUAL SELECT FUNDS, not summed	423,435	0.33%	+36,238	Jun 30, 2026	MASSMUTUAL SELECT FUNDS, not summed
48	TWO SIGMA INVESTMENTS, LP 13F CIK 1179392 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	416,224	0.33%	-275,437	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Quantinno Capital Management LP 13F CIK 1759654 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	402,757	0.32%	+32,242	Jun 30, 2026	carried, not yet filed for the newest quarter
50	Vishria Eric Insider CIK 1617474 · Jun 12, 2025 Director, issuer-wide, not summed	394,333	0.31%	+14,906	Jun 12, 2025	Director, issuer-wide, not summed

23 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 302 holders

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Key facts CIK 1866692 CUSIP 03213A104 13F (30d) 86 filings 72 filers Visit website Investor relations