John Joseph Giamatteo Insider Trades & Stock Holdings
John Joseph Giamatteo, CEO & President, Secure Comm. at BlackBerry Limited has 7 Form 4 trades on file since Jul 2, 2026. Open-market activity: 0 purchases ($0) and 7 sales ($6.20M), net -$6.20M. Latest filing: disposed of 99K shares of $BB on Oct 22, 2026 at $8.74.
- Trades on file
- 7
- Open-market bought
- $0
- Open-market sold
- $6.20M
- Net open-market
- -$6.20M
- Shares held ($BB)
- 542.49K
- Latest filing
- Oct 22, 2026
Shares held by John Joseph Giamatteo
Shares owned after the most recent Form 4 for each company.
All insider trades by John Joseph Giamatteo
| Date | Ticker | Type | Shares | Price | Value | Owned after | ΔOwn | 1W | 1M | 6M | Role | Filing | Story |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| $BB | Sell (Open-market sale) | 99K | $8.74 | $865.26K | 542.49K | -15.43% | CEO & President, Secure Comm. | SEC | Read | ||||
| $BB | Sell (Open-market sale) | 151K | $9.40 | $1.42M | 641.49K | -19.05% | CEO & President, Secure Comm. | SEC | Read | ||||
| $BB | Sell (Open-market sale) | 27K | $8.36 | $225.75K | 792.49K | -3.30% | -9.5% | CEO & President, Secure Comm. | SEC | Read | |||
| $BB | Sell (Open-market sale) | 29.27K | $9.20 | $269.30K | 758.42K | -3.72% | -4.2% | CEO & President, Secure Comm. | SEC | — | |||
| $BB | Sell (Open-market sale) | 152.01K | $11.35 | $1.73M | 721.32K | -17.41% | -19.9% | -22.7% | CEO & President, Secure Comm. | SEC | — | ||
| $BB | Sell (Open-market sale) | 125K | $11 | $1.38M | 812.25K | -13.34% | -4.3% | -19.2% | CEO & President, Secure Comm. | SEC | — | ||
| $BB | Sell (Open-market sale) | 28.27K | $11.22 | $317.21K | 937.25K | -2.93% | -0.7% | -26.0% | CEO & President, Secure Comm. | SEC | — |
"Buy" means shares acquired on the Form 4 (including grants and option exercises); "Sell" means shares disposed. 1W / 1M / 6M = how the stock moved after the trade.
Stocks John Joseph Giamatteo traded
Frequently asked questions
Has John Joseph Giamatteo been buying or selling stock?
John Joseph Giamatteo has 0 open-market purchases and 7 open-market sales on file, net -$6.20M. Grants, option exercises and tax withholding are listed separately because they are not open-market trades.
What was John Joseph Giamatteo's latest insider trade?
disposed of 99K shares of $BB on Oct 22, 2026 at $8.74.
Data comes from public SEC Form 4 and 13F filings and STOCK Act disclosures. Dates are the trade or filing date reported. This page is for research only and is not investment advice.
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