| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| ALLISON R DIRK | Chairman and CEO, Director | 6303 COWBOYS WAY, SUITE 600, FRISCO | /s/ Brian Poff, Attorney-in-Fact for R. Dirk Allison | 2025-08-21 | 0001253500 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ADUS | Common Stock | Options Exercise | $493K | +25K | +15.02% | $19.71 | 191K | Aug 20, 2025 | Direct | |
| transaction | ADUS | Common Stock | Sale | -$2.01M | -17.6K | -9.17% | $114.71 | 174K | Aug 20, 2025 | Direct | F1 |
| transaction | ADUS | Common Stock | Sale | -$860K | -7.44K | -4.28% | $115.53 | 166K | Aug 20, 2025 | Direct | F2 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ADUS | Employee Stock Option (right to buy) | Options Exercise | $0 | -25K | -50% | $0.00 | 25K | Aug 20, 2025 | Common Stock | 25K | $19.71 | Direct | F3 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $114.10 to $115.09, inclusive. The reporting person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) and (2) to this Form 4. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $115.10 to $115.89, inclusive. |
| F3 | All options are fully vested. |