CIK 0001562088 · Large accelerated filer
Duolingo, Inc.
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- DUOL
- Exchange
- Nasdaq
- Industry
- Services-Prepackaged Software
- FY end
- Dec 31
- Incorporated
- DE
- Entity type
- operating
- EIN
- 453055872
- Phone
- (412) 347-6116
- Business address
- 5900 PENN AVE, SECOND FLOOR, PITTSBURGH, PA, 15206
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $39,697,514
- in 11 filings, $39.4M under 10b5-1 plans
Net −$39,697,514. Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Who's trading
90 days
- von Ahn Luis −$34.1M President & CEO, Co-Founder sold 100% of stake
- GORDON WILLIAM B −$2.8M Director sold 26% of stake
- Chen Stephen C. −$2.0M General Counsel sold 24% of stake
- Glance Natalie −$567K Chief Engineering Officer sold 2% of stake
- Meese Robert −$175K Chief Business Officer sold <1% of stake
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-02-18 | Chen Stephen C. General Counsel | Sale 10b5-1 | −480 | $113.95 | $55K | 31,145 |
| 2026-02-18 | Chen Stephen C. General Counsel | Sale 10b5-1 | −520 | $114.55 | $60K | 30,625 |
| 2026-02-18 | Chen Stephen C. General Counsel | Sale 10b5-1 | −80 | $115.47 | $9K | 30,545 |
| 2026-02-18 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −1,499 | $112.30 | $168K | 117,426 |
| 2026-02-18 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −166 | $113.55 | $19K | 117,260 |
| 2026-02-18 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −1,520 | $114.29 | $174K | 115,740 |
| 2026-02-18 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −360 | $115.29 | $42K | 115,380 |
| 2026-02-17 | Meese Robert Chief Business Officer | Sale | −1,000 | $110.06 | $110K | 122,636 |
| 2026-02-17 | Skaruppa Matthew Chief Financial Officer | Sale 10b5-1 | −1,870 | $110.06 | $206K | 35,617 |
| 2026-02-17 | Chen Stephen C. General Counsel | Sale 10b5-1 | −896 | $110.06 | $99K | 32,446 |
| 2026-02-17 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −1,741 | $110.06 | $192K | 118,925 |
| 2026-02-17 | Hacker Severin Chief Tech Officer, Co-Founder | Option exercise · Performance-Based Restricted Stock Units | −60,000 | 270,000 | ||
| 2026-02-17 | Hacker Severin Chief Tech Officer, Co-Founder | Option exercise · Class B Common Stock | +60,000 | 207,787 | ||
| 2026-02-17 | Hacker Severin Chief Tech Officer, Co-Founder | Shares withheld for taxes · Class B Common Stock | −30,594 | $112.57 | $3.4M | 177,193 |
| 2026-02-17 | von Ahn Luis President & CEO, Co-Founder | Option exercise · Performance-Based Restricted Stock Units | −120,000 | 540,000 | ||
| 2026-02-17 | von Ahn Luis President & CEO, Co-Founder | Option exercise · Class B Common Stock | +120,000 | 3,406,635 | ||
| 2026-02-17 | von Ahn Luis President & CEO, Co-Founder | Shares withheld for taxes · Class B Common Stock | −53,640 | $112.57 | $6.0M | 3,352,995 |
| 2025-12-29 | Chen Stephen C. General Counsel | Option exercise | +1,800 | $14.42 | $26K | 33,342 |
| 2025-12-29 | Chen Stephen C. General Counsel | Option exercise · Stock Option (Right to Buy) | −1,800 | 706 | ||
| 2025-12-08 | Hacker Severin Chief Tech Officer, Co-Founder | Conversion | +50,000 | 50,072 |
Page 7 of 79 · 1,565 trades