John S. Montalbano bought $110k of ABCL
director at AbCellera Biologics Inc.. 10,000 shares at an average of $11.03, traded Aug 18, 2026, filed Aug 18, 2026.
Score components
- +15RoleDirector
- +10Trade size$110k at market
- 0Relative to holdingsHoldings up 4.1%
- 0Price contextNear the top of the 52-week range
- +15Cluster3 insiders buying within 14 days
- 0Repeat buyingFirst buy in 90 days
- +10Track recordMedian 6-month excess return +68% over 3 past buys
What happened after comparable buys
Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.
Price around the trade, and since
From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™
Rows in this filing
Every transaction in Form 4 0001834423-26-000008, as filed. Open on EDGAR
| Date | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|
| Aug 18, 2026 | POpen-market purchase Common Shares | +10,000 | $11.03 | $110k | 251,000 | Aug 18, 2026 |
Related signals
Other insiders at AbCellera Biologics Inc. and this insider’s other filings.
| Score | Company | Insider | Value | Holdings | Filed |
|---|---|---|---|---|---|
| 54Moderate | AbCellera Biologics Inc. | Michael R Hayden director | $570k 53,613 shares | +4% | |
| 48Moderate | AbCellera Biologics Inc. | Michael R Hayden director | $481k 46,387 shares | +4% | |
| 56Moderate | AbCellera Biologics Inc. | Andrew Booth Chief Financial Officer | $384k 37,200 shares | +8% | |
| 32Weak | ABCLbuy AbCellera Biologics Inc. | John S. Montalbano director | $95k 20,000 shares | +9% | |
| 34Weak | AbCellera Biologics Inc. | Thermopylae Holdings Ltd. owner | $131k 38,000 shares | +0% | |
| 55Moderate | AbCellera Biologics Inc. | Andrew Booth Chief Financial Officer | $146k 42,600 shares | +28% | |
| 37Weak | AbCellera Biologics Inc. | Thermopylae Holdings Ltd. owner | $580k 177,457 shares | +0% | |
| 41Moderate | ABCLbuy AbCellera Biologics Inc. | John S. Montalbano director | $178k 50,000 shares | +29% | |
| 31Weak | AbCellera Biologics Inc. | Thermopylae Holdings Ltd. owner | $742k 343,631 shares | +1% | |
| 38Weak | AbCellera Biologics Inc. | John S. Montalbano director | $58k 25,000 shares | +17% |
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.