David Portnoy is CEO at CRYO CELL INTERNATIONAL INC (CCEL). They have made 79 open-market trades across 2 companies since 2012, most recently 2025-11-21.
CIK 0001315416
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
71 open-market purchases totalling $2.8M since 2012, against 8 sales. Across 71 scored buys the stock is down 2.4% at ninety days, and 5.7 points behind the S&P over the same stretch.
71 scored purchases · one row per filing · discretionary only
| 7d | 30d | 90d | |
|---|---|---|---|
| Accuracy | 94% | 3% | 3% |
| Avg Move | +9.3% | -1.8% | -2.4% |
| Alpha | -57.5% | -3.2% | -5.7% |
| Scored | 71 | 71 | 71 |
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CCEL | BUY | 2025-09-16 | 2025-09-18 | $4.45 | $76K | -0.4% | -2.9% | -20.2% |
| CCEL | BUY | 2025-09-08 | 2025-09-10 | $4.43 | $190K | +5.8% | -4.6% | -6.8% |
| CCEL | BUY | 2025-08-25 | 2025-08-27 | $4.50 | $176K | +0.2% | +7.1% | -0.8% |
| CCEL | BUY | 2025-08-15 | 2025-08-19 | $4.41 | $85K | +2.2% | -2.2% | -11.6% |
| CCEL | BUY | 2025-08-14 | 2025-08-18 | $4.17 | $24K | +12.3% | +4.3% | -3.9% |
| CCEL | BUY | 2022-11-17 | 2022-11-21 | $4.90 | $5K | -6.7% | -13.5% | -17.3% |
| CCEL | SELL | 2022-11-11 | 2022-11-15 | $4.80 | $170K | -9.2% | -15.6% | -21.8% |
| CCEL | BUY | 2022-11-11 | 2022-11-15 | $4.80 | $122K | -9.2% | -15.6% | -21.8% |
| CCEL | BUY | 2022-11-08 | 2022-11-10 | $4.90 | $117K | -8.3% | -16.7% | -24.6% |
| CCEL | SELL | 2022-11-08 | 2022-11-10 | $4.99 | $102K | -8.3% | -16.7% | -24.6% |
| CCEL | BUY | 2021-07-23 | 2021-07-26 | $9.45 | $1K | +10.6% | -1.3% | +7.2% |
| CCEL | BUY | 2021-07-19 | 2021-07-20 | $9.24 | $924 | +10.6% | -1.3% | +8.0% |
| CCEL | BUY | 2021-05-27 | 2021-05-27 | $8.65 | $8K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-05-21 | 2021-05-25 | $8.46 | $8K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-05-13 | 2021-05-18 | $8.55 | $17K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-05-10 | 2021-05-12 | $8.70 | $14K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-05-03 | 2021-05-05 | $8.47 | $12K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-04-26 | 2021-04-28 | $9.13 | $22K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-04-22 | 2021-04-26 | $9.90 | $18K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-04-16 | 2021-04-20 | $9.90 | $109K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-01-25 | 2021-01-26 | $8.10 | $32K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-01-15 | 2021-01-20 | $8.04 | $88K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-01-13 | 2021-01-15 | $7.97 | $124K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-01-08 | 2021-01-12 | $7.50 | $8K | +10.6% | -1.3% | -1.3% |
| CCEL | BUY | 2021-01-04 | 2021-01-06 | $7.41 | $15K | +10.6% | -1.3% | -1.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.