Cary M. Grossman is Director at Cipher Mining Inc. (CIFR). They have made 14 open-market trades across 3 companies since 2004, most recently 2026-06-18.
CIK 0001240259
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.
2 open-market purchases totalling $42K since 2004, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| GWAC | 195,000 | $2.0M |
| CIFR | 143,829 | $1.3M |
| GWII | 460,000 | — |
| INXI | 10,180 | — |
| MEA | 7,692 | — |
| Total | $3.3M |
Shares reported on the most recent Form 4, priced at the 2026-06-23 close. 3 holdings could not be priced and are excluded from the total.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CIFR | SELL | 2026-06-18 | 2026-06-23 | $29.43 | $441K | -20.8% | -6.0% | -31.1% |
| CIFR | SELL | 2026-05-06 | 2026-05-08 | $21.82 | $436K | -2.0% | +22.2% | -8.5% |
| CIFR | SELL | 2026-03-23 | 2026-03-25 | $14.54 | $436K | -9.0% | +18.2% | +79.4% |
| CIFR | SELL | 2025-11-26 | 2025-11-28 | $19.00 | $475K | -4.4% | -22.0% | -14.7% |
| CIFR | SELL | 2025-08-18 | 2025-08-19 | $5.89 | $442K | +32.6% | +105.7% | +149.1% |
| CIFR | SELL | 2024-06-13 | 2024-06-14 | $4.85 | $315K | -13.4% | +23.6% | -36.2% |
| CIFR | SELL | 2023-08-10 | 2023-08-14 | $3.64 | $597K | -18.3% | -23.1% | -20.0% |
| CIFR | BUY | 2022-09-08 | 2022-09-12 | $1.43 | $36K | -13.0% | -38.0% | -54.6% |
| MEA | SELL | 2015-09-11 | 2015-09-11 | $0.60 | $5K | N/A | N/A | N/A |
| INXI | SELL | 2009-03-17 | 2009-03-17 | $3.10 | $8K | N/A | N/A | N/A |
| INXI | SELL | 2008-05-15 | 2008-05-15 | $11.46 | $23K | N/A | N/A | N/A |
| INXI | SELL | 2007-09-05 | 2007-09-07 | $11.08 | $11K | N/A | N/A | N/A |
| INXI | SELL | 2007-05-29 | 2007-05-30 | $9.75 | $8K | N/A | N/A | N/A |
| INXI | BUY | 2004-11-10 | 2007-03-08 | $7.82 | $6K | N/A | N/A | N/A |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.