| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Alexander Robert | Chief Executive Officer, Director | 149 COMMONWEALTH DR, SUITE 1090, MENLO PARK | /s/ H. Baird Radford, III, by power of attorney | 2025-05-15 | 0001608782 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALLK | Common Stock | Disposed to Issuer | -738K | -100% | 0 | May 15, 2025 | Direct | F1, F2 | ||
| transaction | ALLK | Common Stock | Disposed to Issuer | -320K | -100% | 0 | May 15, 2025 | See footnote | F2, F3 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ALLK | Stock Option (right to buy) | Disposed to Issuer | $0 | -913K | -100% | $0.00 | 0 | May 15, 2025 | Common Stock | 913K | $0.69 | Direct | F4 |
| transaction | ALLK | Stock Option (right to buy) | Disposed to Issuer | $0 | -290K | -100% | $0.00 | 0 | May 15, 2025 | Common Stock | 290K | $4.01 | Direct | F4 |
| transaction | ALLK | Stock Option (right to buy) | Disposed to Issuer | $0 | -307K | -100% | $0.00 | 0 | May 15, 2025 | Common Stock | 307K | $4.31 | Direct | F4 |
| transaction | ALLK | Stock Option (right to buy) | Disposed to Issuer | $0 | -250K | -100% | $0.00 | 0 | May 15, 2025 | Common Stock | 250K | $35.28 | Direct | F4 |
| transaction | ALLK | Stock Option (right to buy) | Disposed to Issuer | $0 | -462K | -100% | $0.00 | 0 | May 15, 2025 | Common Stock | 462K | $7.20 | Direct | F4 |
| transaction | ALLK | Stock Option (right to buy) | Disposed to Issuer | $0 | -2M | -100% | $0.00 | 0 | May 15, 2025 | Common Stock | 2M | $1.25 | Direct | F4 |
Robert Alexander is no longer subject to Section 16 filing requirements. Form 4 or Form 5 obligations may continue.
| Id | Content |
|---|---|
| F1 | Includes 292,810 shares represented by restricted stock units ("RSUs"). Each RSU represents the Reporting Person's right to receive one share of Common Stock of the Issuer. |
| F2 | Disposed of pursuant to the terms of that certain Agreement and Plan of Merger, dated April 1, 2025, by and among the Issuer, Concentra Biosciences, LLC and Concentra Merger Sub III, Inc. (the "Merger Agreement") in exchange for $0.33 in cash per share. |
| F3 | The shares are held by Mr. Alexander and Stacey Lee Alexander, as Trustees of the Alexander 2018 Irrevocable Descendants' Trust. |
| F4 | This option was cancelled without consideration pursuant to the terms of the Merger Agreement. |