# DUOLINGO INC CL A COM

DUOLINGO INC CL A COM is a security (CUSIP 26603R106) tracked across SEC portfolio filings. 431 institutional managers reported $4.9B on Form 13F as of 2026-06-30; 30 registered fund positions totaling $286.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: DUOLINGO INC
- Class: CL A COM
- CUSIP: 26603R106
- Asset category: EC
- 13F holders: 431
- 13F value: $4.9B
- 13F period: 2026-06-30
- N-PORT fund positions: 30
- N-PORT value: $286.6M
- N-PORT report: 2026-05-31

## Top institutional holders (Form 13F)

_Showing 15 of 431 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $635.6M | 3,621,788 |
| BAILLIE GIFFORD & CO | EDINBURGH, X0 | $554.9M | 4,824,298 |
| BlackRock, Inc. | New York, NY | $444.8M | 3,867,080 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | BALA CYNWYD, PA | $229.3M | 78,112 |
| [CITADEL ADVISORS LLC](https://search.stillhousedata.com/firm/148826) | MIAMI, FL | $199.9M | 273,868 |
| FIL Ltd | HAMILTON, D0 | $160.0M | 1,622,805 |
| STATE OF MICHIGAN RETIREMENT SYSTEM | EAST LANSING, MI | $150.2M | 1,306,107 |
| JANE STREET GROUP, LLC | NEW YORK, NY | $144.9M | 671,124 |
| [TWO SIGMA INVESTMENTS, LP](https://search.stillhousedata.com/firm/137137) | New York, NY | $141.6M | 1,395,544 |
| STATE STREET CORP | BOSTON, MA | $141.4M | 1,229,391 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $131.3M | 1,332,301 |
| FEDERATED HERMES, INC. | Pittsburgh, PA | $123.5M | 1,253,026 |
| WOLVERINE TRADING, LLC | CHICAGO, IL | $114.3M | 32,183 |
| UBS Group AG | Zurich, V8 | $110.7M | 1,098,062 |
| FMR LLC | BOSTON, MA | $107.8M | 1,093,339 |

## Top fund holders (N-PORT)

_Showing 15 of 30 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street SPDR S&P MidCap 400SM ETF Trust | SPDR S&P MIDCAP 400 ETF TRUST | $118.9M | 49.10% |
| [VANGUARD U.S. GROWTH FUND](https://search.stillhousedata.com/fund/S000004444) | VANGUARD WORLD FUND | $96.3M | 20.25% |
| [VANGUARD EXTENDED MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002841) | VANGUARD INDEX FUNDS | $44.0M | 5.40% |
| [HARTFORD SMALL CAP GROWTH HLS FUND](https://search.stillhousedata.com/fund/S000004108) | HARTFORD HLS SERIES FUND II INC | $6.0M | 78.56% |
| [Columbia Mid Cap Index Fund](https://search.stillhousedata.com/fund/S000010826) | COLUMBIA FUNDS SERIES TRUST | $3.2M | 12.53% |
| [Large Cap Index Master Portfolio](https://search.stillhousedata.com/fund/S000033023) | Master Investment Portfolio | $2.2M | 0.60% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $2.1M | 0.36% |
| [Federated Hermes MDT All Cap Core Fund](https://search.stillhousedata.com/fund/S000012967) | Federated Hermes MDT Series | $1.8M | 5.31% |
| [BNY Mellon Midcap Index Fund, Inc.](https://search.stillhousedata.com/fund/S000000078) | BNY MELLON MIDCAP INDEX FUND, INC. | $1.8M | 12.88% |
| [VANGUARD INSTITUTIONAL TOTAL STOCK MARKET INDEX FUND](https://search.stillhousedata.com/fund/S000002855) | VANGUARD INSTITUTIONAL INDEX FUNDS | $1.8M | 0.59% |
| [Baillie Gifford Institutional Long Term Global Growth Fund](https://search.stillhousedata.com/fund/S000099723) | Baillie Gifford Institutional Trust | $1.8M | 123.01% |
| [Mid Cap Index Trust](https://search.stillhousedata.com/fund/S000008285) | John Hancock Variable Insurance Trust | $1.4M | 12.00% |
| [Fidelity Nasdaq Composite Index ETF](https://search.stillhousedata.com/fund/S000006011) | Fidelity Commonwealth Trust | $1.0M | 0.94% |
| [Reinhart Mid Cap PMV Fund](https://search.stillhousedata.com/fund/S000037193) | Managed Portfolio Series | $888K | 100.86% |
| [Bridge Builder Tax Managed Small/Mid Cap Fund](https://search.stillhousedata.com/fund/S000076295) | Bridge Builder Trust | $867K | 2.86% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/26603R106.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.