Security key
00288U106
AbCellera Biologics Inc. - Common Shares, no par value per share (ABCL)
CUSIP: 00288U106
Q1 2026 13F Holders as of 31 Mar 2026
- Security type / class
- Equity / Common Shares, no par value per share
- Total 13F shares
- 124,252,829
- Total 13F value
- $433,839,784
- Share change
- +15,612,188
- Put/Call ratio
- 216%
- SEC-reported price per share
- $3.49
- Number of holders
- 137
- Value change
- +$55,053,547
- Number of buys
- 72
- Number of sells
- 59
- Shares outstanding
- 305,667,944
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2026
Institutions
137
Top holders
10
ABCL full security history
Ownership snapshot
Full 13F holder table
AbCellera Biologics Inc. SEC filings
AbCellera Biologics Inc. company facts
Broader feeds
Ownership snapshot
Top reported holders of ABCL - AbCellera Biologics Inc. - Common Shares, no par value per share (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
BAILLIE GIFFORD & CO
Disclosed value leader
Thermopylae Holdings Ltd.
Comparable rows
15/15
Latest evidence
27 Feb 2026
13D/G
3/4/5
13F
Lead comparable stake: 4.4%
13D/G row: BAILLIE GIFFORD & CO
Showing 1-6 of 15 holder rows.
Quick read
BAILLIE GIFFORD & CO leads the comparable SEC ownership view at 4.4%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens BAILLIE GIFFORD & CO's linked filing trail.
Comparable ownership
Top 5
BAILLIE GIFFORD & CO
4.4%
Thermopylae Holdings Ltd.
18%
BAKER BROS. ADVISORS LP
9%
Capital World Investors
4.4%
UBS AM, a distinct business unit ...
2.6%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BAILLIE GIFFORD & CO |
13D/G
|
4.4%
|
$32,881,493
12,894,703 shares
|
$0 | 30 Sep 2024 |
| Thermopylae Holdings Ltd. |
3/4/5
10%+ Owner
|
18%
|
$193,101,293
56,134,097 shares
|
+$711,004 | 27 Feb 2026 |
| BAKER BROS. ADVISORS LP |
13F
Company
|
9%
|
$94,137,689
27,525,640 shares
|
— | 31 Dec 2025 |
| Capital World Investors |
13F
Company
|
4.4%
|
$45,694,948
13,361,096 shares
|
— | 31 Dec 2025 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC |
13F
Company
|
2.6%
|
$26,938,071
7,876,629 shares
|
— | 31 Dec 2025 |
| TWO SIGMA INVESTMENTS, LP |
13F
Company
|
1.9%
|
$19,873,569
5,810,985 shares
|
— | 31 Dec 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q1 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
137
Shares
124,252,829
Rows available
137
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q1 2026 vs Q1 2026 Across Filers
Q1 2026 holders
137
Q1 2026 holders
137
Holder diff
0
| Investor | Q1 2026 Shares | Q1 2026 Shares | Share Diff | Share Chg % | Q1 2026 value | Q1 2026 value | Value change | Value Chg % |
|---|