Who owns DUOL (DUOL)
Which tracked institutional funds hold DUOL, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See DUOL company fundamentals →
Ownership as of the 2026-Q1 13F filings. 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on DUOL is one-sided between 2025-Q4 and 2026-Q1: 71 added or opened and 214 trimmed or exited — on balance reducing.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
DUOL’s largest tracked holder by dollar value, VANGUARD GROUP INC, sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.1% of theirs — a 0.1pp gap the other way — the median holder sizes DUOL more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in DUOL divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 373 tracked filers holding DUOL, 224 increased or opened the position and 276 reduced or closed it; over the same quarter, open-market insider Form 4s were net purchases.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in DUOL between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 27
- VANGUARD CAPITAL MANAGEMENT LLC$170M
- VANGUARD PORTFOLIO MANAGEMENT LLC$161M
- VOLORIDGE INVESTMENT MANAGEMENT, LLC$42M
- HRT FINANCIAL LP$25M
- VANGUARD FIDUCIARY TRUST CO$25M
- Nantahala Capital Management, LLC$10M
Full exits 64
- VANGUARD GROUP INC$626M
- Capital World Investors$393M
- Dragoneer Investment Group, LLC$204M
- Foxhaven Asset Management, LP$100M
- T. Rowe Price Investment Management, Inc.$85M
- Spyglass Capital Management LLC$50M
Largest adds
- FEDERATED HERMES, INC.$108M
- TWO SIGMA INVESTMENTS, LP$106M
- BANK OF AMERICA CORP /DE/$93M
- FIL Ltd$73M
- JANE STREET GROUP, LLC$66M
- NORGES BANK$61M
Largest trims
- BlackRock, Inc.$450M
- BAILLIE GIFFORD & CO$373M
- FMR LLC$361M
- AQR CAPITAL MANAGEMENT LLC$125M
- Whale Rock Capital Management LLC$107M
- STATE STREET CORP$86M
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BAILLIE GIFFORD & CO added | 4,875,810 | $481M | 8.3% | 2026-Q1 |
| BlackRock, Inc. trimmed | 2,371,858 | $234M | 4.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 1,723,132 | $170M | 2.9% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 1,632,650 | $161M | 2.8% | 2026-Q1 |
| FIL Ltd added | 1,622,805 | $160M | 2.8% | 2026-Q1 |
| NORGES BANK trimmed | 472,809 | $147M | 2.5% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 1,395,544 | $138M | 2.4% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ added | 1,332,301 | $131M | 2.3% | 2026-Q1 |
| FEDERATED HERMES, INC. added | 1,253,026 | $124M | 2.1% | 2026-Q1 |
| STATE OF MICHIGAN RETIREMENT SYSTEM added | 1,193,307 | $118M | 2.0% | 2026-Q1 |
| STATE STREET CORP added | 1,183,644 | $117M | 2.0% | 2026-Q1 |
| UBS Group AG added | 1,098,062 | $108M | 1.9% | 2026-Q1 |
| FMR LLC trimmed | 1,040,344 | $103M | 1.8% | 2026-Q1 |
| MORGAN STANLEY added | 953,769 | $94M | 1.6% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 818,328 | $81M | 1.4% | 2026-Q1 |
| JANE STREET GROUP, LLC added | 671,124 | $66M | 1.1% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC added | 603,806 | $60M | 1.0% | 2026-Q1 |
| GILDER GAGNON HOWE & CO LLC added | 508,550 | $50M | 0.9% | 2026-Q1 |
| Quinn Opportunity Partners LLC added | 497,362 | $49M | 0.8% | 2026-Q1 |
| BNP PARIBAS FINANCIAL MARKETS added | 483,019 | $48M | 0.8% | 2026-Q1 |
| Whale Rock Capital Management LLC trimmed | 471,764 | $47M | 0.8% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 471,345 | $44M | 0.8% | 2026-Q1 |
| Amundi added | 449,068 | $44M | 0.8% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 429,335 | $42M | 0.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC added | 352,451 | $35M | 0.6% | 2026-Q1 |
| NORTHERN TRUST CORP added | 334,546 | $33M | 0.6% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC added | 331,384 | $33M | 0.6% | 2026-Q1 |
| Invesco Ltd. trimmed | 316,022 | $31M | 0.5% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 306,853 | $30M | 0.5% | 2026-Q1 |
| CARNEGIE MELLON UNIVERSITY | 294,814 | $29M | 0.5% | 2026-Q1 |
| D. E. Shaw & Co., Inc. added | 280,428 | $28M | 0.5% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 273,868 | $27M | 0.5% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 251,778 | $25M | 0.4% | 2026-Q1 |
| Pacer Advisors, Inc. added | 428,407 | $25M | 0.4% | 2026-Q1 |
| Bank of New York Mellon Corp added | 249,634 | $25M | 0.4% | 2026-Q1 |
| CITIGROUP INC added | 241,377 | $24M | 0.4% | 2026-Q1 |
| Capital International Investors trimmed | 149,640 | $15M | 0.3% | 2026-Q1 |
| Voleon Capital Management LP added | 137,050 | $14M | 0.2% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 130,564 | $13M | 0.2% | 2026-Q1 |
| Clear Street Group Inc. added | 127,941 | $13M | 0.2% | 2026-Q1 |
| Trexquant Investment LP added | 126,504 | $12M | 0.2% | 2026-Q1 |
| RHUMBLINE ADVISERS added | 122,546 | $12M | 0.2% | 2026-Q1 |
| Walleye Trading LLC added | 116,619 | $11M | 0.2% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP trimmed | 115,408 | $11M | 0.2% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 108,402 | $11M | 0.2% | 2026-Q1 |
| Nantahala Capital Management, LLC new | 100,000 | $10M | 0.2% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 99,433 | $10M | 0.2% | 2026-Q1 |
| CAPITAL FUND MANAGEMENT S.A. trimmed | 97,938 | $10M | 0.2% | 2026-Q1 |
| TUDOR INVESTMENT CORP ET AL added | 94,362 | $9M | 0.2% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 3,565,134 | $626M | 10.8% | 2025-Q4 stale |
| Capital World Investors added | 2,241,378 | $393M | 6.8% | 2025-Q4 stale |
| Dragoneer Investment Group, LLC trimmed | 1,159,887 | $204M | 3.5% | 2025-Q4 stale |
| Foxhaven Asset Management, LP added | 571,840 | $100M | 1.7% | 2025-Q4 stale |
| T. Rowe Price Investment Management, Inc. trimmed | 485,547 | $85M | 1.5% | 2025-Q4 stale |
| Artisan Partners Limited Partnership added | 256,262 | $82M | 1.4% | 2025-Q3 stale |
| BAMCO INC /NY/ added | 243,708 | $78M | 1.3% | 2025-Q3 stale |
| AGF MANAGEMENT LTD trimmed | 151,828 | $62M | 1.1% | 2025-Q2 stale |
| FULLER & THALER ASSET MANAGEMENT, INC. trimmed | 165,994 | $53M | 0.9% | 2025-Q3 stale |
| Spyglass Capital Management LLC added | 286,873 | $50M | 0.9% | 2025-Q4 stale |
| 1832 Asset Management L.P. added | 137,200 | $43M | 0.7% | 2025-Q1 stale |
| Jain Global LLC added | 120,182 | $39M | 0.7% | 2025-Q3 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 90,087 | $37M | 0.6% | 2025-Q2 stale |
| COOKSON PEIRCE & CO INC added | 86,821 | $36M | 0.6% | 2025-Q2 stale |
| ThornTree Capital Partners LP added | 184,867 | $32M | 0.6% | 2025-Q4 stale |
| Nishkama Capital, LLC new | 97,780 | $31M | 0.5% | 2025-Q3 stale |
| BIT Capital GmbH added | 178,910 | $31M | 0.5% | 2025-Q4 stale |
| TWINBEECH CAPITAL LP trimmed | 67,729 | $28M | 0.5% | 2025-Q2 stale |
| Steadview Capital Management LLC trimmed | 82,155 | $26M | 0.5% | 2025-Q3 stale |
| MARK ASSET MANAGEMENT LP added | 81,568 | $26M | 0.5% | 2025-Q3 stale |
| HEALTHCARE OF ONTARIO PENSION PLAN TRUST FUND added | 63,300 | $26M | 0.4% | 2025-Q2 stale |
| Allen Investment Management, LLC | 78,421 | $25M | 0.4% | 2025-Q3 stale |
| Durable Capital Partners LP trimmed | 119,181 | $21M | 0.4% | 2025-Q4 stale |
| Holocene Advisors, LP added | 62,569 | $20M | 0.3% | 2025-Q3 stale |
| Qube Research & Technologies Ltd added | 112,279 | $20M | 0.3% | 2025-Q4 stale |
| Driehaus Capital Management LLC trimmed | 47,208 | $19M | 0.3% | 2025-Q2 stale |
| TWO SIGMA ADVISERS, LP trimmed | 106,080 | $19M | 0.3% | 2025-Q4 stale |
| Dream Peak Capital Ltd new | 104,532 | $18M | 0.3% | 2025-Q4 stale |
| Tredje AP-fonden added | 55,908 | $18M | 0.3% | 2025-Q3 stale |
| STEADFAST CAPITAL MANAGEMENT LP new | 41,751 | $17M | 0.3% | 2025-Q2 stale |
| Aperture Investors, LLC trimmed | 48,572 | $15M | 0.3% | 2025-Q1 stale |
| CROSSLINK CAPITAL INC trimmed | 46,412 | $15M | 0.3% | 2025-Q3 stale |
| LORD, ABBETT & CO. LLC trimmed | 46,036 | $15M | 0.3% | 2025-Q3 stale |
| Susquehanna Portfolio Strategies, LLC new | 45,868 | $15M | 0.3% | 2025-Q3 stale |
| Corebridge Financial, Inc. trimmed | 42,272 | $13M | 0.2% | 2025-Q1 stale |
| Stony Point Capital LLC added | 31,211 | $13M | 0.2% | 2025-Q2 stale |
| ZACKS INVESTMENT MANAGEMENT added | 36,875 | $12M | 0.2% | 2025-Q3 stale |
| TB Alternative Assets Ltd. new | 35,961 | $12M | 0.2% | 2025-Q3 stale |
| PUBLIC SECTOR PENSION INVESTMENT BOARD new | 27,700 | $11M | 0.2% | 2025-Q2 stale |
| NATIXIS added | 61,856 | $11M | 0.2% | 2025-Q4 stale |
| CONGRESS ASSET MANAGEMENT CO added | 61,711 | $11M | 0.2% | 2025-Q4 stale |
| Alyeska Investment Group, L.P. new | 61,441 | $11M | 0.2% | 2025-Q4 stale |
| WOLVERINE TRADING, LLC added | 32,183 | $11M | 0.2% | 2025-Q3 stale |
| Clearbridge Investments, LLC trimmed | 57,576 | $10M | 0.2% | 2025-Q4 stale |
| Broad Peak Investment Advisers Pte Ltd new | 31,000 | $10M | 0.2% | 2025-Q3 stale |
| Bienville Capital Management, LLC added | 56,500 | $10M | 0.2% | 2025-Q4 stale |
| OBERWEIS ASSET MANAGEMENT INC/ | 31,000 | $10M | 0.2% | 2025-Q1 stale |
| Cerity Partners LLC trimmed | 54,336 | $10M | 0.2% | 2025-Q4 stale |
| Hidden Lake Asset Management LP new | 29,456 | $9M | 0.2% | 2025-Q3 stale |
| TD Asset Management Inc trimmed | 53,730 | $9M | 0.2% | 2025-Q4 stale |
| LONG WALK MANAGEMENT LP trimmed | 30,250 | $9M | 0.2% | 2025-Q1 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.