Security key
98420N105
Xenon Pharmaceuticals Inc. - Common Shares (XENE)
CUSIP: 98420N105
Q4 2018 13F Holders as of 31 Dec 2018
- Security type / class
- Equity / Common Shares
- Total 13F shares
- 17,450,658
- Total 13F value
- $110,112,206
- Share change
- -577,730
- SEC-reported price per share
- $6.31
- Number of holders
- 56
- Value change
- -$24,376,594
- Number of buys
- 33
- Number of sells
- 19
- Shares outstanding
- 92,799,600
Holder snapshot
6 signals
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q4 2018
Institutions
56
Top holders
10
XENE full security history
Ownership snapshot
Full 13F holder table
Newer quarter: Q2 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 Shares (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
Avoro Capital Advisors LLC
Disclosed value leader
Avoro Capital Advisors LLC
Comparable rows
15/15
Latest evidence
30 Sep 2018
13F
Lead comparable stake: 2.6%
Showing 1-6 of 15 holder rows.
Quick read
Avoro Capital Advisors LLC leads the comparable SEC ownership view at 2.6%.
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 Avoro Capital Advisors LLC's linked filing trail.
Comparable ownership
Top 5
Avoro Capital Advisors LLC
2.6%
Vivo Capital, LLC
1.5%
ADAGE CAPITAL PARTNERS GP, L.L.C.
1.3%
BVF INC/IL
1.3%
Capital World Investors
1%
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 |
|---|---|---|---|---|---|
| Avoro Capital Advisors LLC |
13F
Company
|
2.6%
|
$31,247,000
2,367,218 shares
|
— | 30 Sep 2018 |
| Vivo Capital, LLC |
13F
Company
|
1.5%
|
$18,552,000
1,405,476 shares
|
— | 30 Sep 2018 |
| ADAGE CAPITAL PARTNERS GP, L.L.C. |
13F
Company
|
1.3%
|
$15,840,000
1,200,000 shares
|
— | 30 Sep 2018 |
| BVF INC/IL |
13F
Company
|
1.3%
|
$15,385,000
1,165,553 shares
|
— | 30 Sep 2018 |
| Capital World Investors |
13F
Company
|
1%
|
$12,718,000
963,500 shares
|
— | 30 Sep 2018 |
| Capital International Investors |
13F
Company
|
1%
|
$12,374,000
937,400 shares
|
— | 30 Sep 2018 |
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 Q4 2018
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
56
Shares
17,450,658
Rows available
56
| 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 Q4 2018 vs Q3 2018 Across Filers
Q3 2018 holders
59
Q4 2018 holders
56
Holder diff
-3
| Investor | Q3 2018 Shares | Q4 2018 Shares | Share Diff | Share Chg % | Q3 2018 value | Q4 2018 value | Value change | Value Chg % |
|---|
Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).
Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend