DUOL · Insider trading · 13F holders · Congress trades
Duolingo, Inc. (DUOL)
Who is buying and selling DUOL: company insiders on SEC Form 4, hedge funds and superinvestors on Form 13F, and members of Congress under the STOCK Act. Every figure links to the filing or page it comes from.
- 13F filers holding
- 26
- Insider buys, 90 days
- $0
- Insider sales, 90 days
- $37.7M
- Congress trades, 12 months
- 3
DUOL at a glance
- Between Aug 1, 2026 and Oct 29, 2026, 5 DUOL insiders filed 9 sales worth $37.7M on SEC Form 4, and no open-market purchases; 7 of the sales were pre-planned under Rule 10b5-1.
- 26 13F filers hold DUOL among their 50 largest positions, worth $1.0B combined, including Alex Sacerdote. The biggest bets by portfolio weight are Arthedge Capital Management, LLC (7.5%), Quinn Opportunity Partners LLC (3.0%) and Leibman Financial Services, Inc. (2.4%). In their latest 13Fs, 4 managers opened a new position and 3 added to one.
- Members of Congress have disclosed 3 DUOL trades since 2025, 1 purchase and 2 sales in the past year; the latest was Lisa C. McClain (R-MI), selling $1K–15K on Aug 13, 2025.
- DUOL last closed at $136.39 on Oct 29, 2026.
DUOL insider trading
Between Aug 1, 2026 and Oct 29, 2026, 5 DUOL insiders filed 9 sales worth $37.7M on SEC Form 4, and no open-market purchases; 7 of the sales were pre-planned under Rule 10b5-1.
| Filed | Insider | Role | Trade | Shares | Price | Value | Form 4 |
|---|---|---|---|---|---|---|---|
| Oct 9, 2026 | von Ahn Luis | President & CEO, Co-Founder, Director, 10% Owner | Sale10b5-1 | 110,046 | $151.70 | $16.7M | SEC |
| Sep 28, 2026 | von Ahn Luis | President & CEO, Co-Founder, Director, 10% Owner | Sale10b5-1 | 46,682 | $150.63 | $7.0M | SEC |
| Sep 23, 2026 | von Ahn Luis | President & CEO, Co-Founder, Director, 10% Owner | Sale10b5-1 | 40,980 | $150.65 | $6.2M | SEC |
| Sep 18, 2026 | von Ahn Luis | President & CEO, Co-Founder, Director, 10% Owner | Sale10b5-1 | 28,292 | $150.22 | $4.3M | SEC |
| Sep 15, 2026 | Chen Stephen C. | General Counsel | Sale10b5-1 | 8,072 | $149.33 | $1.2M | SEC |
| Sep 10, 2026 | Gordon William B | Director | Sale10b5-1 | 10,000 | $145.67 | $1.5M | SEC |
| Aug 19, 2026 | Glance Natalie | Chief Engineering Officer | Sale10b5-1 | 4,290 | $132.24 | $567K | SEC |
| Aug 19, 2026 | Meese Robert | Chief Business Officer | Sale | 1,354 | $129.13 | $175K | SEC |
| Aug 19, 2026 | Chen Stephen C. | General Counsel | Sale | 1,024 | $129.13 | $132K | SEC |
Who owns DUOL? Hedge funds and superinvestors
26 13F filers hold DUOL among their 50 largest positions, worth $1.0B combined, including Alex Sacerdote. The biggest bets by portfolio weight are Arthedge Capital Management, LLC (7.5%), Quinn Opportunity Partners LLC (3.0%) and Leibman Financial Services, Inc. (2.4%). In their latest 13Fs, 4 managers opened a new position and 3 added to one.
Superinvestors holding DUOL: Alex Sacerdote 0.4%
| Manager | % of portfolio | Value | Shares | Last quarter | 13F |
|---|---|---|---|---|---|
| Baillie Gifford & CoHedge fund | 0.5% | $554.9M | 4,824,298 | -1.1% shares | Q2 2026 |
| State of Michigan Retirement SystemPension fund | 0.8% | $185.1M | 1,299,907 | -0.5% shares | Q3 2026 |
| Quinn Opportunity Partners LLCHedge fund | 3.0% | $63.9M | 555,664 | +11.7% shares | Q2 2026 |
| Gilder Gagnon Howe & Co LLCWealth manager | 0.6% | $57.8M | 502,344 | -1.2% shares | Q2 2026 |
| Alex SacerdoteHedge fund | 0.4% | $54.3M | 471,764 | +0.0% shares | Q2 2026 |
| Carnegie Mellon UniversityEndowment & foundation | 43.0% | $33.9M | 294,814 | +0.0% shares | Q2 2026 |
| Polymer Capital Management (HK) LTDHedge fund | 1.4% | $14.1M | 122,300 | — | Q2 2026 |
| Jasper Ridge Partners, L.P.Asset manager | 0.2% | $10.0M | 87,108 | +0.0% shares | Q2 2026 |
| Winmill & Co. IncInvestment manager | 2.2% | $10.0M | 86,552 | — | Q2 2026 |
| Arthedge Capital Management, LLCHedge fund | 7.5% | $8.6M | 74,800 | +0.0% shares | Q2 2026 |
| KR Capital LPHedge fund | 0.8% | $7.9M | 68,462 | New | Q2 2026 |
| Proem Advisors LLCHedge fund | 1.6% | $7.9M | 68,450 | +0.0% shares | Q2 2026 |
| Lingotto Investment Management LLPHedge fund | 0.1% | $6.3M | 44,545 | +11.2% shares | Q3 2026 |
| X-Square Capital, LLCInstitutional asset manager | 1.3% | $5.0M | 43,186 | +0.0% shares | Q2 2026 |
| WT Asset Management LtdHedge fund | 0.1% | $3.6M | 25,000 | New | Q3 2026 |
| Leibman Financial Services, Inc.Wealth manager | 2.4% | $3.4M | 24,035 | -0.8% shares | Q3 2026 |
| Maxi Investments CY LtdAsset manager | 0.6% | $3.1M | 22,000 | -25.2% shares | Q3 2026 |
| Sycomore Asset ManagementAsset manager | 0.3% | $3.0M | 28,184 | — | Q3 2026 |
| Blue Jean Financial LLCWealth manager | 1.8% | $3.0M | 20,989 | — | Q3 2026 |
| Intercapital, LLCHedge fund | 0.9% | $2.1M | 18,000 | -70.0% shares | Q2 2026 |
| Lane Generational LLCWealth manager | 1.7% | $2.0M | 17,307 | -25.8% shares | Q2 2026 |
| Triodos Investment Management BVAsset manager | 0.1% | $1.8M | 16,000 | +45.5% shares | Q2 2026 |
| Brown Capital Management LLCMutual fund manager | 0.3% | $1.7M | 11,603 | -61.7% shares | Q3 2026 |
| Ahara Advisors LLCWealth manager | 0.8% | $1.4M | 9,639 | -8.8% shares | Q3 2026 |
| Lotus Technology Management, LPHedge fund | 1.2% | $949K | 7,675 | New | Q2 2026 |
| Eschler Asset Management LLPHedge fund | 1.6% | $898K | 7,806 | New | Q2 2026 |
Each manager counts with its latest 13F (Q3 2026: 9, Q2 2026: 17). Screen DUOL in the grand portfolio →
DUOL stock trades by members of Congress
Members of Congress have disclosed 3 DUOL trades since 2025, 1 purchase and 2 sales in the past year; the latest was Lisa C. McClain (R-MI), selling $1K–15K on Aug 13, 2025.
| Filed | Member | Trade | Amount | Traded | Since |
|---|---|---|---|---|---|
| Sep 12, 2025 | Lisa C. McClainR-MI · House | Sale | $1K–15K | Aug 13, 2025 | -59.6% |
| Aug 13, 2025 | Lisa C. McClainR-MI · House | Sale | $1K–15K | Jun 24, 2025 | -68.7% |
| Aug 13, 2025 | Lisa C. McClainR-MI · House | Buy | $1K–15K | Jun 17, 2025 | -72.2% |
Analysis mentioning DUOL
Posts from the blog that cover Duolingo, Inc., newest first.
- Insider selling · Oct 9, 2026Insider Selling on October 9, 2026: ANET, DUOL and DDOG Lead $121.7M of Sales
- Insider selling · Sep 28, 2026Insider Selling on September 28, 2026: INNV, GTLB and CBRS Lead $414.4M of Sales
- Insider selling · Sep 23, 2026Insider Selling on September 23, 2026: MEDP, HOOD and META Lead $267.9M of Sales
DUOL questions and answers
Are insiders buying DUOL stock?
Between Aug 1, 2026 and Oct 29, 2026, 5 DUOL insiders filed 9 sales worth $37.7M on SEC Form 4, and no open-market purchases; 7 of the sales were pre-planned under Rule 10b5-1.
Which hedge funds own DUOL?
26 13F filers hold DUOL among their 50 largest positions, worth $1.0B combined, including Alex Sacerdote. The biggest bets by portfolio weight are Arthedge Capital Management, LLC (7.5%), Quinn Opportunity Partners LLC (3.0%) and Leibman Financial Services, Inc. (2.4%). In their latest 13Fs, 4 managers opened a new position and 3 added to one.
Has Congress traded DUOL?
Members of Congress have disclosed 3 DUOL trades since 2025, 1 purchase and 2 sales in the past year; the latest was Lisa C. McClain (R-MI), selling $1K–15K on Aug 13, 2025.
Who is the largest holder of DUOL?
Among 13F filers, Baillie Gifford & Co reports the largest DUOL position, $554.9M (4,824,298 shares) in its Q2 2026 13F. The biggest bet by portfolio weight is Arthedge Capital Management, LLC's: 7.5% of its portfolio.
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