Notice of Proposed Sale · 144
Duolingo, Inc.
DUOLNASDAQEQUITYCurrent
Notice of Proposed Sale
Structured filing — 144
primary_doc.xml
Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.
Proposed-sale notice
- Issuer
- Duolingo, Inc.
- Issuer CIK
- 0001562088
- SEC file number
- 001-40653
- Phone
- 4125676602
- Person for whose account securities are to be sold
- LUIS VON AHN ARELLANO
- Relationships to issuer
- Director · Officer · 10% Stockholder
- Street
- 5900 Penn Avenue
- City
- Pittsburgh
- State / country code
- PA
- Postal code
- 15206
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 46,682 | 6,814,638.36 | 40,387,012 | 09/24/2026 | NASDAQ | Morgan Stanley Smith Barney LLC Executive Financial Services |
Broker / market maker — proposed row 1, entry 1
- Name
- Morgan Stanley Smith Barney LLC Executive Financial Services
- Street
- 1 New York Plaza
- Street (continued)
- 8th Floor
- City
- New York
- State / country code
- NY
- Postal code
- 10004
Acquisition of securities to be sold
| Security | Acquired | Nature of acquisition | Acquired from | Amount acquired | Gift transaction | Payment date | Nature of payment |
|---|---|---|---|---|---|---|---|
| Common | 09/24/2026 | Exercise of Stock Options | Issuer | 46,682 | N | 09/24/2026 | Cash |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| 10b5-1 Sales for LUIS VON AHN ARELLANO | Common | 09/22/2026 | 3,614 | 548,996.23 |
| 10b5-1 Sales for LUIS VON AHN ARELLANO | Common | 09/21/2026 | 37,366 | 5,624,730.38 |
| 10b5-1 Sales for LUIS VON AHN FOUNDATION | Common | 09/21/2026 | 34,992 | 5,268,280.05 |
| 10b5-1 Sales for LUIS VON AHN ARELLANO | Common | 09/16/2026 | 28,292 | 4,250,140.24 |
| 10b5-1 Sales for LUIS VON AHN FOUNDATION | Common | 09/16/2026 | 19,008 | 2,832,624.09 |
Seller — prior-sale row 1, entry 1
- Name
- 10b5-1 Sales for LUIS VON AHN ARELLANO
- Street
- 5900 Penn Avenue
- City
- Pittsburgh
- State / country code
- PA
- Postal code
- 15206
Seller — prior-sale row 2, entry 1
- Name
- 10b5-1 Sales for LUIS VON AHN ARELLANO
- Street
- 5900 Penn Avenue
- City
- Pittsburgh
- State / country code
- PA
- Postal code
- 15206
Seller — prior-sale row 3, entry 1
- Name
- 10b5-1 Sales for LUIS VON AHN FOUNDATION
- Street
- 5900 Penn Avenue
- City
- Pittsburgh
- State / country code
- PA
- Postal code
- 15206
Seller — prior-sale row 4, entry 1
- Name
- 10b5-1 Sales for LUIS VON AHN ARELLANO
- Street
- 5900 Penn Avenue
- City
- Pittsburgh
- State / country code
- PA
- Postal code
- 15206
Seller — prior-sale row 5, entry 1
- Name
- 10b5-1 Sales for LUIS VON AHN FOUNDATION
- Street
- 5900 Penn Avenue
- City
- Pittsburgh
- State / country code
- PA
- Postal code
- 15206
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 09/24/2026
- Signed
- /s/ Luis von Ahn Arellano
- Plan adoption dates
- 06/02/2026