| Insider | Role | Shares | Value | Buys | Sells |
|---|---|---|---|---|---|
| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
|---|---|---|---|---|---|---|---|---|---|
| Insider | Role | Shares | Value | Buys | Sells |
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| Date | Ticker | Insider | Role | Type | Shares | Price | Value | Chg% | SEC |
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Director
1 company
John S. Montalbano is Director at ABCL. John S. Montalbano's net worth is not public. Form 4 filings only show shares in the companies where this person is an insider; those holdings are worth an estimated $3.1M at current prices.
Our model assigns John S. Montalbano a middling insider score of 55/100, based on 9 past trades. Over a 12-month horizon, 28.6% of those trades were profitable, with an average 12-month return of -0.8%.
Net of sales, the ABCL filings show accumulation of 256,000 shares.
John S. Montalbano has 15 Form 4 filings on record from December 2020 to August 2026, all as Director at AbCellera Biologics (ABCL), 2020–2026.
The 19 reported transactions were 12 open-market purchases and 7 option or other derivative awards.
Counted by filing, the open-market trades come to 10 purchases worth about $1.6M and no sales.
The largest open-market purchase was 25,000 shares of ABCL at an average $20.00 on December 15, 2020, about $500K.
| Date | Ticker | Role | Type | Shares | Price | Value | Chg% | 3M | 12M | SEC |
|---|---|---|---|---|---|---|---|---|---|---|
| Aug 18, 2026 | ABCL Abcellera Biologics Inc. | Director | Buy | 10,000 | $11.03 | $110,300.00 | +4.1% | - | - | |
| May 14, 2026 | ABCL Abcellera Biologics Inc. | Director | Buy | 20,000 | $4.77 | $95,400.00 | +9.0% | +135.3% | - | |
| Nov 26, 2025 | ABCL Abcellera Biologics Inc. | Director | Buy | 50,000 | $3.57 | $178,460.00 | +29.2% | -11.5% | - | |
| Mar 10, 2025 | ABCL Abcellera Biologics Inc. | Director | Buy | 25,000 | $2.30 | $57,500.00 | +17.1% | +14.1% | +62.7% | |
| Mar 6, 2025 | ABCL Abcellera Biologics Inc. | Director | Buy | 60,000 | $2.34 | $140,568.00 | +69.8% | +1.7% | +45.4% | |
| Nov 8, 2023 | ABCL Abcellera Biologics Inc. | Director | Buy | 30,000 | $4.58 | $137,400.00 | +53.6% | +23.9% | -34.9% | |
| Mar 4, 2022 | ABCL Abcellera Biologics Inc. | Director | Buy | 10,000 | $8.54 | $85,400.00 | +21.7% | -9.5% | -1.8% | |
| Mar 1, 2022 | ABCL Abcellera Biologics Inc. | Director | Buy | 20,000 | $9.05 | $181,000.00 | +76.9% | -15.7% | -9.8% | |
| Aug 16, 2021 | ABCL Abcellera Biologics Inc. | Director | Buy | 6,000 | $17.23 | $103,380.00 | +30.0% | -7.2% | -27.8% | |
| Dec 15, 2020 | ABCL Abcellera Biologics Inc. | Director | Buy | 25,000 | $20.00 | $500,000.00 | -125.0% | - | - |