AMPL · Amplitude, Inc. · Holdings

$14.65 +0.13 (+0.90%)

Russell 2000 member Rebalance outlook locked

Market Cap

$1.66B

124.92M

Volume · Oct 2 1.73M Avg daily vol (3M) 1.91M

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 205

Total Value: $621,773,388

Total Shares: 81,275,056

Showing 1–100 of 213 holdings by value · page 1 of 3

Institutional Ownership Trend

21 quarters

Holder Concentration

Across 205 13F filers

Top Holder

13.6%

of institutional value

Top 5

45.7%

of institutional value

Top 10

60.4%

of institutional value

HHI

551

Broadly held

Showing 100 of 213

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

WELLINGTON MANAGEMENT GROUP LLP

$84,807,944

13.64%

11,086,006

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Wellington Management Company LLP	7,164,725	$54,810,146	64.6%	Defined
Wellington Managment Canada LLC	298,183	$2,281,099	2.7%	Defined
Wellington Management Singapore Pte. Ltd.	262,537	$2,008,408	2.4%	Defined
Wellington Management International Ltd	1,258,327	$9,626,201	11.4%	Defined
Wellington Trust Company, NA joint	2,102,234	$16,082,090	19.0%	Defined

BlackRock, Inc.

$76,842,563

12.36%

10,044,780

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BLACKROCK FINANCIAL MANAGEMENT INC/DE	394,792	$3,020,158	3.9%	Sole
BlackRock Investment Management (Australia) Ltd	46	$351	0.0%	Sole
BlackRock Asset Management Canada Ltd	650	$4,972	0.0%	Sole
BlackRock Investment Management, LLC	406,260	$3,107,889	4.0%	Sole
BLACKROCK ADVISORS LLC	982,191	$7,513,761	9.8%	Sole
BlackRock Fund Advisors	4,223,116	$32,306,837	42.0%	Sole
BlackRock Institutional Trust Company, N.A.	3,674,502	$28,109,940	36.6%	Sole
BlackRock Fund Managers Ltd.	14,628	$111,904	0.1%	Sole
BlackRock Investment Management (UK) Ltd.	71,714	$548,612	0.7%	Sole
BlackRock Asset Management Ireland Ltd	84,177	$643,954	0.8%	Sole
BlackRock Asset Management Schweiz AG	14,617	$111,820	0.1%	Sole
Aperio Group, LLC	178,087	$1,362,365	1.8%	Sole

VANGUARD PORTFOLIO MANAGEMENT LLC

$46,542,133

7.49%

6,083,939

FMR LLC

$45,742,685

7.36%

5,979,436

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fidelity Management & Research Co LLC	5,952,882	$45,539,547	99.6%	Defined
STRATEGIC ADVISERS LLC	26,554	$203,138	0.4%	Defined

VANGUARD CAPITAL MANAGEMENT LLC

$30,138,682

4.85%

3,939,697

SC US (TTGP), LTD.

$21,411,974

3.44%

2,798,951

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SC U.S. Growth IX Management, L.P.	2,563,750	$19,612,687	91.6%	Defined
Held directly	235,201	$1,799,287	8.4%	Defined

STATE STREET CORP

$19,925,924

3.20%

2,604,696

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STATE STREET GLOBAL ADVISORS EUROPE LIMITED joint	2,604,696	$19,925,924	100.0%	Defined

GEODE CAPITAL MANAGEMENT, LLC

$18,953,341

3.05%

2,477,561

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GEODE CAPITAL MANAGEMENT TRUST COMPANY, LLC	352,810	$2,698,996	14.2%	Defined
Held directly	2,124,751	$16,254,345	85.8%	Defined

Trigran Investments, Inc.

$17,757,248

2.86%

2,321,209

BAILLIE GIFFORD & CO

$13,613,594

2.19%

1,779,555

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BAILLIE GIFFORD & CO LTD	414,634	$3,171,950	23.3%	Defined
BAILLIE GIFFORD OVERSEAS LTD	177,595	$1,358,601	10.0%	Defined
Baillie Gifford Investment Management (Europe) Ltd	245,304	$1,876,575	13.8%	Defined
Held directly	942,022	$7,206,468	52.9%	Sole

Optimus Prime Fund Management Co., Ltd.

$12,087,765

1.94%

1,580,100

AQR CAPITAL MANAGEMENT LLC

$11,538,874

1.86%

1,508,350

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RF&L WEALTH MANAGEMENT, LLC	27	$206	0.0%	Other
Compound Planning, Inc.	9	$68	0.0%	Other
Arax Advisory Partners	44,504	$340,455	3.0%	Other
HALBERT HARGROVE GLOBAL ADVISORS, LLC	6,968	$53,305	0.5%	Other
Stokes Family Office, LLC	5,195	$39,741	0.3%	Other
Held directly	1,451,647	$11,105,099	96.2%	Defined

Point72 Asset Management, L.P.

$10,782,093

1.73%

1,409,424

MORGAN STANLEY

$8,795,584

1.41%

1,149,750

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY & CO INTERNATIONAL PLC	130	$994	0.0%	Defined
MORGAN STANLEY & CO. LLC	34,680	$265,302	3.0%	Defined
MORGAN STANLEY CAPITAL SERVICES, LLC	703,260	$5,379,939	61.2%	Defined
MORGAN STANLEY SMITH BARNEY LLC	219,313	$1,677,743	19.1%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	151,920	$1,162,187	13.2%	Defined
EATON VANCE MANAGEMENT	40,447	$309,419	3.5%	Defined

GAGNON SECURITIES LLC

$8,074,636

1.30%

1,055,508

ROYCE & ASSOCIATES LP

$8,039,966

1.29%

1,050,976

Squarepoint Ops LLC

$7,815,599

1.26%

1,021,647

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Squarepoint Capital LLP	1,021,647	$7,815,599	100.0%	Defined

JACOBS LEVY EQUITY MANAGEMENT, INC

$7,341,138

1.18%

959,626

NORTHERN TRUST CORP

$7,071,374

1.14%

924,363

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
NORTHERN TRUST CO joint	849,757	$6,500,640	91.9%	Defined
NORTHERN TRUST GLOBAL INVESTMENTS LTD	59,463	$454,891	6.4%	Defined
DWS INVESTMENT MANAGEMENT AMERICAS, INC joint	15,143	$115,843	1.6%	Other

DIMENSIONAL FUND ADVISORS LP

$6,856,340

1.10%

896,254

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Dimensional Fund Advisors Ltd.	7,444	$56,946	0.8%	Defined
DFA Australia Ltd.	2,781	$21,274	0.3%	Defined
Dimensional Ireland Ltd	24,226	$185,328	2.7%	Defined
Held directly	861,803	$6,592,792	96.2%	Sole

CITADEL ADVISORS LLC

$6,677,424

1.07%

872,866

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	70,016	$535,622	8.0%	Defined
Held directly	802,850	$6,141,802	92.0%	Defined

Meros Investment Management, LP

$6,334,024

1.02%

827,977

CHARLES SCHWAB INVESTMENT MANAGEMENT INC

$6,147,868

0.99%

803,643

MONIMUS CAPITAL MANAGEMENT, LP

$5,996,131

0.96%

783,808

CenterBook Partners LP

$5,899,396

0.95%

771,163

VANGUARD FIDUCIARY TRUST CO

$5,184,366

0.83%

677,695

ArrowMark Colorado Holdings LLC

$5,025,874

0.81%

656,977

Gagnon Advisors, LLC

$4,857,650

0.78%

634,987

Cerity Partners LLC

$3,624,660

0.58%

473,812

ACADIAN ASSET MANAGEMENT LLC

$3,576,390

0.58%

467,502

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Acadian Inc	467,502	$3,576,390	100.0%	Defined

TWO SIGMA INVESTMENTS, LP

$3,184,113

0.51%

416,224

Quantinno Capital Management LP

$3,081,091

0.50%

402,757

MILLENNIUM MANAGEMENT LLC

$2,935,848

0.47%

383,771

Toronado Partners, LLC

$2,805,645

0.45%

366,751

LAZARD ASSET MANAGEMENT LLC

$2,716,453

0.44%

355,092

SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC

$2,714,457

0.44%

354,831

MERCER GLOBAL ADVISORS INC /ADV

$2,622,879

0.42%

342,860

Man Group plc

$2,591,468

0.42%

338,754

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Numeric Investors LLC	338,754	$2,591,468	100.0%	Defined

VOYA INVESTMENT MANAGEMENT LLC

$2,465,165

0.40%

322,244

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Voya Investment Management Co. LLC joint	322,244	$2,465,165	100.0%	Defined

UBS Group AG

$2,462,839

0.40%

321,940

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	4,584	$35,067	1.4%	Defined
UBS AG	314,818	$2,408,357	97.8%	Defined
UBS Switzerland AG	2,538	$19,415	0.8%	Defined

GOLDMAN SACHS GROUP INC

$2,436,050

0.39%

318,438

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GOLDMAN SACHS & CO. LLC	193,584	$1,480,917	60.8%	Defined
GOLDMAN SACHS ASSET MANAGEMENT, L.P.	124,854	$955,133	39.2%	Defined

S SQUARED TECHNOLOGY, LLC

$2,412,825

0.39%

315,402

Madison Asset Management, LLC

$2,389,852

0.38%

312,399

ALLIANCEBERNSTEIN L.P.

$2,335,682

0.38%

305,318

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Equitable Holdings, Inc.	305,318	$2,335,682	100.0%	Defined

Numerai GP LLC

$2,257,836

0.36%

295,142

Bank of New York Mellon Corp

$2,204,100

0.35%

288,118

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Mellon Investments Corporation	112,635	$861,657	39.1%	Defined
The Bank of New York Mellon	174,692	$1,336,393	60.6%	Defined
BNY Mellon, NA joint	790	$6,043	0.3%	Defined
Held directly	1	$7	0.0%	Defined

JPMORGAN CHASE & CO

$2,112,523

0.34%

276,147

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
JPMorgan Chase Bank, N.A.	56,122	$429,333	20.3%	Defined
J.P. Morgan Investment Management Inc.	194,605	$1,488,728	70.5%	Defined
J.P. Morgan Securities LLC	6,413	$49,059	2.3%	Defined
J.P. Morgan Markets Ltd	19,007	$145,403	6.9%	Defined

Nuveen, LLC

$2,029,550

0.33%

265,301

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Nuveen Asset Management, LLC joint	64,966	$496,988	24.5%	Defined
TEACHERS ADVISORS, LLC joint	200,335	$1,532,562	75.5%	Defined

BANK OF AMERICA CORP /DE/

$1,868,404

0.30%

244,236

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
BANK OF AMERICA NA	73,497	$562,252	30.1%	Defined
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	103,856	$794,498	42.5%	Defined
BOFA SECURITIES, INC.	66,883	$511,654	27.4%	Defined

Circumference Group LLC

$1,820,700

0.29%

238,000

Verition Fund Management LLC

$1,727,928

0.28%

225,873

IEQ CAPITAL, LLC

$1,585,033

0.25%

207,194

WESTERLY CAPITAL MANAGEMENT, LLC

$1,530,000

0.25%

200,000

Swiss National Bank

$1,438,965

0.23%

188,100

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$1,388,475

0.22%

181,500

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	181,500	$1,388,475	100.0%	Other

UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC

$1,370,816

0.22%

179,192

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Group AG	5,357	$40,981	3.0%	Defined
UBS Asset Management Switzerland AG	138,113	$1,056,564	77.1%	Defined
UBS Asset Management (UK) Ltd.	20,122	$153,933	11.2%	Other
Held directly	15,600	$119,338	8.7%	Defined

Corient Private Wealth LLC

$1,366,389

0.22%

178,613

DEUTSCHE BANK AG\

$1,329,883

0.21%

173,841

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
DWS INVESTMENT MANAGEMENT AMERICAS, INC	1,414	$10,817	0.8%	Defined
DWS Investments UK Ltd	172,427	$1,319,066	99.2%	Defined

Savant Capital, LLC

$1,279,814

0.21%

167,296

CITADEL ADVISORS LLC

$1,256,130

0.20%

164,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	164,200	$1,256,130	100.0%	Defined

BOOTHBAY FUND MANAGEMENT, LLC

$1,233,807

0.20%

161,282

Invesco Ltd.

$1,165,950

0.19%

152,412

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Invesco Advisers, Inc. joint	15,482	$118,436	10.2%	Defined
Invesco Trust Co joint	38,573	$295,083	25.3%	Defined
Invesco Capital Management LLC	98,357	$752,431	64.5%	Defined

Creative Planning

$1,149,656

0.18%

150,282

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
CREATIVE PLANNING TRUST Co LLC	3,287	$25,145	2.2%	Defined
Held directly	146,995	$1,124,511	97.8%	Sole

Walleye Trading LLC

$1,140,615

0.18%

149,100

PRELUDE CAPITAL MANAGEMENT, LLC

$1,006,556

0.16%

131,576

HSBC HOLDINGS PLC

$925,749

0.15%

121,013

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
HSBC BANK PLC	121,013	$925,749	100.0%	Defined

Palogic Value Management, L.P.

$918,673

0.15%

120,088

RHUMBLINE ADVISERS

$896,373

0.14%

117,173

UNITED CAPITAL FINANCIAL ADVISORS, LLC

$881,624

0.14%

115,245

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
United Capital Financial Partners, LLC	115,245	$881,624	100.0%	Defined

Russell Investments Group, Ltd.

$875,616

0.14%

114,460

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Russell Investment Management, LLC joint	58,651	$448,679	51.2%	Defined
Russell Investments Capital, LLC joint	16,459	$125,911	14.4%	Other
Russell Investments France SAS	6,918	$52,922	6.0%	Defined
Russell Investments Trust Company joint	32,432	$248,104	28.3%	Other

Legal & General Group Plc

$873,407

0.14%

114,171

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Legal & General Investment Management America Inc	9,717	$74,335	8.5%	Defined
Legal & General Investment Management Ltd joint	104,454	$799,072	91.5%	Defined

Utah Retirement Systems

$862,881

0.14%

112,795

XTX Topco Ltd

$844,039

0.14%

110,332

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
XTX EXECUTION SERVICES LLC joint	110,332	$844,039	100.0%	Defined

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$799,416

0.13%

104,499

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SUSQUEHANNA SECURITIES, LLC	90,687	$693,755	86.8%	Other
G1 EXECUTION SERVICES, LLC	13,812	$105,661	13.2%	Other

NANO CAP NEW MILLENNIUM GROWTH FUND L P

$765,000

0.12%

100,000

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
AZG TANGIBLE ASSETS FUND LLC	100,000	$765,000	100.0%	Sole

Divisadero Street Capital Management, LP

$765,000

0.12%

100,000

Quantbot Technologies LP

$751,214

0.12%

98,198

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	98,198	$751,214	100.0%	Sole

CITADEL ADVISORS LLC

$735,930

0.12%

96,200

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Citadel Securities GP LLC	96,200	$735,930	100.0%	Defined

STATE OF WISCONSIN INVESTMENT BOARD

$718,870

0.12%

93,970

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

$718,036

0.12%

93,861

WELLS FARGO & COMPANY/MN

$705,428

0.11%

92,213

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	91,164	$697,404	98.9%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	90	$688	0.1%	Defined
WELLS FARGO CLEARING SERVICES, LLC	959	$7,336	1.0%	Defined

Inspire Investing, LLC

$695,438

0.11%

90,907

JANE STREET GROUP, LLC

$693,855

0.11%

90,700

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	90,700	$693,855	100.0%	Defined

CANADA PENSION PLAN INVESTMENT BOARD

$690,030

0.11%

90,200

Diametric Capital, LP

$676,191

0.11%

88,391

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Thakore Nainoor	88,391	$676,191	100.0%	Defined

ALLSTATE CORP

$636,434

0.10%

83,194

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ALLSTATE INVESTMENTS LLC	83,194	$636,434	100.0%	Sole

PRICE T ROWE ASSOCIATES INC /MD/

$613,637

0.10%

80,214

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
T. Rowe Price International Ltd	80,214	$613,637	100.0%	Defined

STRS OHIO

$579,870

0.09%

75,800

Connor, Clark & Lunn Investment Management Ltd.

$566,490

0.09%

74,051

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Manager 1	74,051	$566,490	100.0%	Sole

AdvisorShares Investments LLC

$553,095

0.09%

72,300

VANGUARD ASSET MANAGEMENT, Ltd

$454,119

0.07%

59,362

ExodusPoint Capital Management, LP

$453,377

0.07%

59,265

Trexquant Investment LP

$446,675

0.07%

58,389

Ahara Advisors LLC

$446,339

0.07%

58,345

Cresset Asset Management, LLC

$428,598

0.07%

56,026

MetLife Investment Management, LLC

$427,007

0.07%

55,818

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
METLIFE INC	55,818	$427,007	100.0%	Defined

Zurcher Kantonalbank (Zurich Cantonalbank)

$408,823

0.07%

53,441

Walleye Capital LLC

$394,740

0.06%

51,600

DARK FOREST CAPITAL MANAGEMENT LP

$384,152

0.06%

50,216

Penbrook Management LLC

$372,593

0.06%

48,705

Key facts CIK 1866692 CUSIP 03213A104 13F (30d) 9 filings 6 filers Visit website Investor relations