Notice of Proposed Sale · 144
United Therapeutics Corporation
UTHRNASDAQEQUITYCurrent
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
- UNITED THERAPEUTICS CORPORATION
- Issuer CIK
- 0001082554
- SEC file number
- 000-26301
- Phone
- (301) 608-9292
- Person for whose account securities are to be sold
- PAUL MAHON
- Relationships to issuer
- Officer
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Securities proposed for sale
| Security | Proposed units | Aggregate market value | Units outstanding | Approximate sale date | Exchange | Broker / market maker |
|---|---|---|---|---|---|---|
| Common | 8,300 | 4,689,050.97 | 42,890,692 | 10/01/2026 | 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 | 10/01/2026 | Stock Option Exercise | Issuer | 8,300 | N | 10/01/2026 | Cash |
Sales reported in the preceding three months
| Seller | Security | Sale date | Amount sold | Gross proceeds |
|---|---|---|---|---|
| PAUL MAHON | Common | 09/17/2026 | 8,300 | 4,129,607.73 |
| PAUL MAHON | Common | 09/03/2026 | 8,300 | 4,000,836.55 |
| PAUL MAHON | Common | 08/20/2026 | 8,300 | 4,342,078.81 |
| PAUL MAHON | Common | 08/06/2026 | 8,300 | 4,291,512.51 |
| PAUL MAHON | Common | 07/16/2026 | 8,300 | 4,429,637.79 |
| PAUL MAHON | Common | 07/02/2026 | 8,300 | 4,586,274.56 |
Seller — prior-sale row 1, entry 1
- Name
- PAUL MAHON
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Seller — prior-sale row 2, entry 1
- Name
- PAUL MAHON
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Seller — prior-sale row 3, entry 1
- Name
- PAUL MAHON
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Seller — prior-sale row 4, entry 1
- Name
- PAUL MAHON
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Seller — prior-sale row 5, entry 1
- Name
- PAUL MAHON
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Seller — prior-sale row 6, entry 1
- Name
- PAUL MAHON
- Street
- 1000 SPRING STREET
- City
- SILVER SPRING
- State / country code
- MD
- Postal code
- 20910
Prior-sale reporting
- Nothing to report for the preceding three months
- N
Notice signature
- Notice date
- 10/01/2026
- Signed
- /s/ Paul A. Mahon
- Plan adoption dates
- 08/11/2025
Company context
Founded by CEO Martine Rothblatt to discover a cure for her daughter's life-threatening rare disease, pulmonary arterial hypertension, United Therapeutics transforms the treatment of rare diseases and pioneers alternatives to expand the supply of transplantable organs. From our innovative therapies to our groundbreaking manufactured organs, we are bold and unconventional. We move quickly from scientific theory to practical technologies that can save lives. As a public benefit corporation, even our legal structure reflects our commitments. We serve patients, act with integrity, create long-term shareholder value, and operate with sustainable practices that protect the future we are working to build.