Security key
98420N105
Xenon Pharmaceuticals Inc. - Common Stock (XENE)
CUSIP: 98420N105
Q1 2021 13F Holders as of 31 Mar 2021
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 32,964,044
- Total 13F value
- $590,006,963
- Share change
- +4,954,779
- SEC-reported price per share
- $17.90
- Number of holders
- 88
- Value change
- +$88,828,095
- Number of buys
- 43
- Number of sells
- 27
- Shares outstanding
- 95,032,800
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q1 2021
Institutions
88
Top holders
10
XENE full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q3 2026
Xenon Pharmaceuticals Inc. SEC filings
Xenon Pharmaceuticals Inc. company facts
Broader feeds
Reporting periods
Holder history for CUSIP 98420N105
Recent filing periods:
Ownership snapshot
Top reported holders of XENE - Xenon Pharmaceuticals Inc. - Common Stock (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
BVF INC/IL
Disclosed value leader
BVF INC/IL
Comparable rows
0/15
Latest evidence
31 Dec 2020
13F
Highest disclosed value: $53,820,000
15 rows are not safely comparable across share classes.
Showing 1-6 of 15 holder rows.
Quick read
BVF INC/IL has the largest disclosed position value at $53.82M.
0 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 BVF INC/IL's linked filing trail.
Disclosed position value
Top 5
BVF INC/IL
$53.82M
Avoro Capital Advisors LLC
$43.06M
FMR LLC
$40.38M
ORBIMED ADVISORS LLC
$38.42M
ADAGE CAPITAL PARTNERS GP, L.L.C.
$37.68M
Value bars compare disclosed positions; verify each figure against the linked filing evidence.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| BVF INC/IL |
13F
Company
|
—
denominator unverified
|
$53,820,000
3,499,346 shares
|
— | 31 Dec 2020 |
| Avoro Capital Advisors LLC |
13F
Company
|
—
denominator unverified
|
$43,064,000
2,800,000 shares
|
— | 31 Dec 2020 |
| FMR LLC |
13F
Company
|
—
denominator unverified
|
$40,381,000
2,625,552 shares
|
— | 31 Dec 2020 |
| ORBIMED ADVISORS LLC |
13F
Company
|
—
denominator unverified
|
$38,418,000
2,497,917 shares
|
— | 31 Dec 2020 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
Company
|
—
denominator unverified
|
$37,681,000
2,450,000 shares
|
— | 31 Dec 2020 |
| Capital International Investors |
13F
Company
|
—
denominator unverified
|
$16,237,000
1,055,726 shares
|
— | 31 Dec 2020 |
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 2021
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
88
Shares
32,964,044
Rows available
88
| 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 2021 vs Q1 2021 Across Filers
Q1 2021 holders
88
Q1 2021 holders
88
Holder diff
0
| Investor | Q1 2021 Shares | Q1 2021 Shares | Share Diff | Share Chg % | Q1 2021 value | Q1 2021 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend