Abcellera Biologics Inc
Ownership
Ownership Structure
Who owns Abcellera Biologics Inc (ABCL)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 64.5% of the shares are freely tradable; institutional investors hold 43.2%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Baker Bros Advisors LP | 10.19 | 33,012,138 | +9.0 | 06/30/2026 |
| Capital World Investors | 4.19 | 13,588,349 | +1.7 | 06/30/2026 |
| Two Sigma Investments LLC | 3.22 | 10,437,431 | -1.2 | 06/30/2026 |
| TD Waterhouse Canada Inc | 2.95 | 9,568,149 | +0.0 | 06/30/2026 |
| Bank of America Corp | 1.90 | 6,141,539 | +104.7 | 06/30/2026 |
| UBS Asset Mgmt Americas Inc | 1.33 | 4,317,206 | -43.0 | 06/30/2026 |
| ArrowMark Colorado Holdings, LLC (ArrowMark Partners) | 1.27 | 4,105,095 | +0.0 | 06/30/2026 |
| BlackRock Inc | 1.17 | 3,805,309 | -5.8 | 06/30/2026 |
| Driehaus Capital Management LLC | 0.88 | 2,864,729 | -28.8 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| American Funds SMALLCAP World A | 4.08 | 13,228,596 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Insider holdings
| Person | Role | Shares | Value | As of | Type |
|---|---|---|---|---|---|
| Thermopylae Holdings Ltd. | 10% Owner | 56,069,662 | 644,801,113 $ | Nov 13, 2026 | direct |
| Hayden Michael R | Director | 1,373,397 | 15,794,066 $ | Aug 24, 2026 | indirect |
| Booth Andrew | Chief Financial Officer | 491,400 | 5,651,100 $ | Nov 13, 2026 | direct |
| Montalbano John S. | Director | 251,000 | 2,886,500 $ | Aug 18, 2026 | direct |
Holdings as of each person's most recent SEC Form 4 filing — excluding options and RSUs, which are not shares yet. Holdings may have changed between two filings.
Insiders
Insider Transactions
| Date | Person | Role | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Nov 13, 2026 | Thermopylae Holdings Ltd. | 10% Owner | Other | 125,000 | 0.00 | – |
| Nov 13, 2026 | Booth Andrew | Chief Financial Officer | Buy | 8,600 | 11.33 | 97,438 |
| Nov 12, 2026 | Thermopylae Holdings Ltd. | 10% Owner | Buy | 60,565 | 11.54 | 698,920 |
| Aug 24, 2026 | Hayden Michael R | Director | Buy | 53,613 | 10.64 | 570,442 |
| Aug 18, 2026 | Montalbano John S. | Director | Buy | 10,000 | 11.03 | 110,300 |
| Aug 14, 2026 | Booth Andrew | Chief Financial Officer | Buy | 37,200 | 10.32 | 383,904 |
| Aug 12, 2026 | Hayden Michael R | Director | Buy | 46,387 | 10.37 | 481,033 |
| Aug 11, 2026 | Hayden Michael R | Director | Other | 50,000 | 0.00 | – |
Reportable transactions by officers and major shareholders from SEC Form 4 filings. "Other" includes things like stock grants and option exercises without a buy/sell character. View all insider transactions →
Data as of: November 13, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.