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 |
|---|---|---|---|---|---|---|
| 2025-10-01 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −108 | $312.75 | $34K | 117,971 |
| 2025-10-01 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −300 | $315.28 | $95K | 117,671 |
| 2025-10-01 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −300 | $316.74 | $95K | 117,371 |
| 2025-10-01 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −600 | $317.96 | $191K | 116,771 |
| 2025-10-01 | Glance Natalie Chief Engineering Officer | Sale 10b5-1 | −600 | $319.76 | $192K | 116,171 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Conversion 10b5-1 | +10,000 | $38.08 | $381K | 10,072 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Sale 10b5-1 | −1,300 | $286.77 | $373K | 8,772 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Sale 10b5-1 | −2,300 | $287.81 | $662K | 6,472 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Sale 10b5-1 | −2,300 | $288.81 | $664K | 4,172 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Sale 10b5-1 | −1,900 | $289.79 | $551K | 2,272 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Sale 10b5-1 | −2,200 | $290.78 | $640K | 72 |
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Option exercise · Stock Option (Right to Buy) 10b5-1 | −10,000 | 45,252 | ||
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Conversion · Class B Common Stock 10b5-1 | +10,000 | 96,075 | ||
| 2025-09-19 | Hacker Severin Chief Tech Officer, Co-Founder | Conversion · Class B Common Stock 10b5-1 | −10,000 | 86,075 | ||
| 2025-09-18 | Chen Stephen C. General Counsel | Option exercise | +1,700 | $14.42 | $25K | 34,338 |
| 2025-09-18 | Chen Stephen C. General Counsel | Option exercise · Stock Option (Right to Buy) | −1,700 | 2,506 | ||
| 2025-09-11 | Meese Robert Chief Business Officer | Option exercise | +5,000 | $8.15 | $41K | 125,080 |
| 2025-09-11 | Meese Robert Chief Business Officer | Option exercise · Stock Option (Right to Buy) | −5,000 | 4,375 | ||
| 2025-09-05 | Hacker Severin Chief Tech Officer, Co-Founder | Conversion 10b5-1 | +10,000 | $38.08 | $381K | 10,072 |
| 2025-09-05 | Hacker Severin Chief Tech Officer, Co-Founder | Sale 10b5-1 | −500 | $264.75 | $132K | 9,572 |
Page 13 of 79 · 1,565 trades