Amplitude, Inc. AMPL
CIK 0001866692 · CUSIP 03213A104
Quarter-end disclosures, not live holdings.
Top 20 institutions
Weight means this stock's share of the manager's own portfolio.
| # | Manager | Value | Manager weight | Change vs prior | Source | |
|---|---|---|---|---|---|---|
| 01 | T. Rowe Price Investment Management, Inc. CIK 1897612 · View history | $79.18M 8,896,642 shares | 0.05% | +1.08M(+13.8%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 02 | VANGUARD GROUP INC CIK 102909 · View history | $75.32M 8,462,705 shares | 0.00% | +354.82K(+4.4%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 03 | FMR LLC CIK 315066 · View history | $71.12M 7,991,429 shares | 0.00% | +1.44M(+22.0%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 04 | BATTERY MANAGEMENT CORP. CIK 1548594 · View history | $66.32M 7,451,304 shares | 17.41% | -1.50M(-16.8%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 05 | BlackRock Inc. CIK 1364742 · View history | $52.21M 5,866,776 shares | 0.00% | +631.28K(+12.1%)Added | SEC filing ↗ Aug 13, 2024 | ▾ |
| 06 | MORGAN STANLEY CIK 895421 · Amended · View history | $25.90M 2,910,322 shares | 0.00% | +2.49M(+594.1%)Added | SEC filing ↗ May 14, 2025 | ▾ |
| 07 | SC US (TTGP), LTD. CIK 1607841 · View history | $24.91M 2,798,951 shares | 0.20% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 08 | DEUTSCHE BANK AG\ CIK 948046 · Amended · View history | $18.86M 2,118,949 shares | 0.01% | +1.90M(+846.8%)Added | SEC filing ↗ Jun 12, 2025 | ▾ |
| 09 | STATE STREET CORP CIK 93751 · View history | $17.00M 1,910,196 shares | 0.00% | +200.19K(+11.7%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 10 | INSTITUTIONAL VENTURE MANAGEMENT XV, LLC CIK 1640275 · View history | $16.87M 1,895,531 shares | 11.53% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 11 | GEODE CAPITAL MANAGEMENT, LLC CIK 1214717 · View history | $15.82M 1,777,475 shares | 0.00% | +164.64K(+10.2%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 12 | JANUS HENDERSON GROUP PLC CIK 1274173 · View history | $14.53M 1,632,980 shares | 0.01% | +773.26K(+89.9%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 13 | Optimus Prime Fund Management Co., Ltd. CIK 1732539 · View history | $14.06M 1,580,100 shares | 1.66% | 0(0.0%)Unchanged | SEC filing ↗ Aug 14, 2024 | ▾ |
| 14 | Sunriver Management LLC CIK 1663900 · View history | $10.81M 1,214,821 shares | 1.37% | -2.11M(-63.5%)Reduced | SEC filing ↗ Aug 13, 2024 | ▾ |
| 15 | ArrowMark Colorado Holdings LLC CIK 1483859 · View history | $8.43M 947,114 shares | 0.10% | +111.94K(+13.4%)Added | SEC filing ↗ Aug 14, 2024 | ▾ |
| 16 | Bank of New York Mellon Corp CIK 1390777 · View history | $7.75M 870,423 shares | 0.00% | -95.30K(-9.9%)Reduced | SEC filing ↗ Jul 25, 2024 | ▾ |
| 17 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC CIK 884546 · Amended · View history | $5.62M 630,948 shares | 0.00% | +65.26K(+11.5%)Added | SEC filing ↗ Aug 12, 2024 | ▾ |
| 18 | NORTHERN TRUST CORP CIK 73124 · View history | $5.49M 616,412 shares | 0.00% | -11.07K(-1.8%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
| 19 | RENAISSANCE TECHNOLOGIES LLC CIK 1037389 · View history | $3.68M 413,100 shares | 0.01% | +67.50K(+19.5%)Added | SEC filing ↗ Aug 9, 2024 | ▾ |
| 20 | READYSTATE ASSET MANAGEMENT LP CIK 1900923 · View history | $2.26M 253,445 shares | 0.11% | -621.44K(-71.0%)Reduced | SEC filing ↗ Aug 14, 2024 | ▾ |
Showing 20 / 135 institutions. The complete set is available through the API.
Coverage & totals by quarter
Reporting institutions by quarter
Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.
Explore all 135 reporting institutions.
This page includes 20 of 135 reporting institutions. Sign in to look up the full history beyond 3 years, use advanced screening & filtering, download CSV, and get the complete set through the Akkru API.
- Download CSV
- Earlier quarters
- Advanced screening & filtering
- API & AI access
+ New accounts get free API credits to explore data beyond ownership filings.
For AI agents & developers
The initial HTML of this page carries its exact data as script#research-data (JSON): values, units, scope, preview limits and SEC sources. Read it directly, no script or API key needed; script#research-access says what needs an account. This page lists 20 of 135 reporting institutions; totals use the complete disclosed data.
Without an account: the last 3 years, with the row caps stated on the page. A free account opens all history on file on these pages and the CSV of what a page shows. Rows beyond the caps and bulk retrieval go through the authenticated API / MCP.
MCP https://api.akkrudata.ai/mcp
get_institutional_security_holders
{"cusip":"03213A104","quarter":"2024Q2","type":"positions","page_size":100}Connect to MCP with OAuth and follow the returned pagination. Credits and usage limits depend on the account.
- MCP endpoint
- https://api.akkrudata.ai/mcp
- API / MCP documentation
- /documents
- llms.txt
- /llms.txt
Sources, coverage & how to read this data
Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.