# AMPLITUDE INC COM CL A

AMPLITUDE INC COM CL A is a security (CUSIP 03213A104) tracked across SEC portfolio filings. 218 institutional managers reported $620.1M on Form 13F as of 2026-06-30; 15 registered fund positions totaling $20.8M via N-PORT as of 2026-05-31.

## Summary

- Issuer: AMPLITUDE INC
- Class: COM CL A
- CUSIP: 03213A104
- Asset category: EC
- 13F holders: 218
- 13F value: $620.1M
- 13F period: 2026-06-30
- N-PORT fund positions: 15
- N-PORT value: $20.8M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 218 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $125.4M | 10,825,568 |
| WELLINGTON MANAGEMENT GROUP LLP | BOSTON, MA | $76.1M | 11,154,556 |
| BlackRock, Inc. | New York, NY | $69.3M | 10,162,138 |
| FMR LLC | BOSTON, MA | $22.6M | 3,311,284 |
| SC US (TTGP), LTD. | Menlo Park, CA | $19.1M | 2,798,951 |
| MILLENNIUM MANAGEMENT LLC | NEW YORK, NY | $18.1M | 2,031,823 |
| Nuveen, LLC | CHARLOTTE, NC | $17.4M | 2,554,774 |
| STATE STREET CORP | BOSTON, MA | $16.6M | 2,429,307 |
| [Point72 Asset Management, L.P.](https://search.stillhousedata.com/firm/283077) | Stamford, CT | $16.4M | 2,411,300 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $15.9M | 2,326,107 |
| BAILLIE GIFFORD & CO | EDINBURGH, X0 | $13.6M | 1,779,555 |
| JACOBS LEVY EQUITY MANAGEMENT, INC | FLORHAM PARK, NJ | $11.8M | 1,731,437 |
| Optimus Prime Fund Management Co., Ltd. | GRAND CAYMAN, E9 | $10.8M | 1,580,100 |
| [MONIMUS CAPITAL MANAGEMENT, LP](https://search.stillhousedata.com/firm/309855) | WOODBRIDGE, NJ | $8.6M | 1,264,286 |
| [ArrowMark Colorado Holdings LLC](https://search.stillhousedata.com/firm/149120) | Denver, CO | $8.6M | 1,256,023 |

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $7.3M | 0.89% |
| [VANGUARD RUSSELL 2000 INDEX FUND](https://search.stillhousedata.com/fund/S000030003) | VANGUARD SCOTTSDALE FUNDS | $3.9M | 2.25% |
| [HARTFORD SMALL COMPANY HLS FUND](https://search.stillhousedata.com/fund/S000003220) | HARTFORD SERIES FUND INC | $3.0M | 77.20% |
| [Small Cap Core Portfolio](https://search.stillhousedata.com/fund/S000051867) | Bernstein Fund Inc | $1.5M | 21.19% |
| [VOYA SMALL COMPANY PORTFOLIO](https://search.stillhousedata.com/fund/S000008709) | Voya VARIABLE PORTFOLIOS INC | $1.2M | 68.02% |
| [Master Small Cap Index Series](https://search.stillhousedata.com/fund/S000002716) | Quantitative Master Series LLC | $1.0M | 2.10% |
| [U.S. MICRO CAP PORTFOLIO](https://search.stillhousedata.com/fund/S000000948) | DFA INVESTMENT DIMENSIONS GROUP INC | $826K | 1.11% |
| [Voya MI Dynamic Small Cap Fund](https://search.stillhousedata.com/fund/S000066937) | Voya Equity Trust | $562K | 30.17% |
| [BlackRock Advantage SMID Cap Fund, Inc.](https://search.stillhousedata.com/fund/S000002323) | BlackRock Advantage SMID Cap Fund, Inc. | $453K | 5.99% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $373K | 0.06% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $283K | 0.09% |
| [Goldman Sachs ActiveBeta(R) U.S. Small Cap Equity ETF](https://search.stillhousedata.com/fund/S000048296) | Goldman Sachs ETF Trust | $183K | 1.85% |
| [DWS Small Cap Index VIP](https://search.stillhousedata.com/fund/S000006223) | DEUTSCHE DWS INVESTMENTS VIT FUNDS | $93K | 2.22% |
| [Blackstone Alternative Multi-Strategy Fund](https://search.stillhousedata.com/fund/S000045538) | Blackstone Alternative Investment Funds | $28K | 0.08% |
| [TIAA Separate Account VA-1 - Stock Index Account](https://search.stillhousedata.com/fund/S000005098) | TIAA Separate Account VA-1 | $10K | 0.08% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/03213A104.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.