David Portnoy
Chairman, Co-CEO at Cryo-Cell International Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Cryo-Cell International Inc., 3 years.
Cryo-Cell International Inc.
Director · Chairman, Co-CEO
Chief executive roles
Cryo-Cell International Inc.
· Chairman, Co-CEO
Dates unknown
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 5, 2026 | Cryo-Cell International Inc. | Other | −600,191 | $1.33 | $799,995 |
| Aug 5, 2026 | Cryo-Cell International Inc. | Other | +600,191 | $1.33 | $799,995 |
| Nov 21, 2025 | Cryo-Cell International Inc. | Grant or award | +800 | $4.04 | $3,232 |
| Nov 21, 2025 | Cryo-Cell International Inc. | Grant or award | +677 | $4.09 | $2,769 |
| Nov 21, 2025 | Cryo-Cell International Inc. | Grant or award | +406 | $4.09 | $1,661 |
| Nov 21, 2025 | Cryo-Cell International Inc. | Grant or award | +273 | $4.10 | $1,119 |
| Nov 20, 2025 | Cryo-Cell International Inc. | Grant or award | +289 | $4.00 | $1,156 |
| Nov 19, 2025 | Cryo-Cell International Inc. | Grant or award | +1,921 | $4.08 | $7,838 |
| Nov 18, 2025 | Cryo-Cell International Inc. | Grant or award | +640 | $4.09 | $2,618 |
| Nov 17, 2025 | Cryo-Cell International Inc. | Grant or award | +1,429 | $4.00 | $5,716 |
| Nov 12, 2025 | Cryo-Cell International Inc. | Grant or award | +2,040 | $4.12 | $8,405 |
| Nov 11, 2025 | Cryo-Cell International Inc. | Grant or award | +2,474 | $4.13 | $10,218 |
| Nov 10, 2025 | Cryo-Cell International Inc. | Grant or award | +1,026 | $4.18 | $4,289 |
| Nov 4, 2025 | Cryo-Cell International Inc. | Grant or award | +5,000 | $4.40 | $22,000 |
| Oct 31, 2025 | Cryo-Cell International Inc. | Grant or award | +4,666 | $4.45 | $20,764 |
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