John Joseph Giamatteo is CEO & President at BLACKBERRY Ltd (BB). They have made 15 open-market trades across 1 company since 2023, most recently 2026-10-09.
CIK 0001234080
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.
0 open-market purchases, against 15 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| BB | 792,494 | $6.4M |
| RNWK | 37,879 | $28K |
| SLH | 29,365 | — |
| Total | $6.4M |
Shares reported on the most recent Form 4, priced at the 2026-10-13 close. 1 holding could not be priced and is 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 |
|---|---|---|---|---|---|---|---|---|
| BB | SELL | 2026-10-09 | 2026-10-13 | $8.36 | $226K | — | — | — |
| BB | SELL | 2026-10-02 | 2026-10-05 | $9.20 | $269K | -5.7% | — | — |
| BB | SELL | 2026-07-08 | 2026-07-10 | $11.19 | $3.1M | -17.9% | -18.9% | -20.8% |
| BB | SELL | 2026-07-02 | 2026-07-06 | $11.22 | $317K | -17.5% | -21.3% | -18.1% |
| BB | SELL | 2026-04-02 | 2026-04-07 | $3.56 | $96K | +33.9% | +68.0% | +212.7% |
| BB | SELL | 2026-01-06 | 2026-01-08 | $3.88 | $340K | -1.6% | -10.1% | -8.5% |
| BB | SELL | 2026-01-02 | 2026-01-06 | $3.82 | $885K | -1.8% | -14.2% | -10.1% |
| BB | SELL | 2025-10-02 | 2025-10-06 | $4.62 | $262K | -5.8% | -1.0% | -19.2% |
| BB | SELL | 2025-07-02 | 2025-07-03 | $4.32 | $233K | -4.9% | -11.3% | +12.7% |
| BB | SELL | 2025-01-06 | 2025-01-08 | $4.00 | $118K | +2.5% | +31.6% | -28.1% |
| BB | SELL | 2025-01-03 | 2025-01-07 | $4.00 | $173K | +1.8% | +29.0% | -26.0% |
| BB | SELL | 2025-01-02 | 2025-01-06 | $3.68 | $1.1M | -2.9% | +23.6% | -28.0% |
| BB | SELL | 2024-01-08 | 2024-01-09 | $3.23 | $118K | +9.1% | -15.5% | -12.7% |
| BB | SELL | 2024-01-03 | 2024-01-04 | $3.25 | $194K | +3.4% | -17.6% | -13.0% |
| BB | SELL | 2023-01-03 | 2023-01-05 | $3.42 | $207K | +17.2% | +24.2% | +27.3% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.