STATE OF WISCONSIN INVESTMENT BOARD
Position in XENE — Xenon Pharmaceuticals Inc.
CIK 854157
MADISON, WI
Position in XENE
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$14,798,186
+$5,584,584 QoQ
Shares Held
254,483
+23.8% QoQ
Ownership
0.263%
of shares outstanding
% of Portfolio
0.04%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2022
17 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in XENE Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026STATE OF WISCONSIN INVESTMENT BOARD holds $473,893,217 across 164 Biotechnology names. XENE ranks #5 (3.1% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | VRTX |
Vertex Pharmaceuticals Inc / Ma
|
136,548 | $60,974,143 | |
| 2 | REGN |
Regeneron Pharmaceuticals, Inc.
|
55,274 | $42,706,903 | |
| 3 | ALNY |
Alnylam Pharmaceuticals, Inc.
|
68,883 | $22,791,318 | |
| 4 | INSM |
INSMED Inc
|
114,346 | $18,697,857 | |
| 5 | XENE |
Xenon Pharmaceuticals Inc.
This page
|
254,483 | $14,798,186 | |
| 6 | MRNA |
Moderna, Inc.
|
227,162 | $11,539,829 | |
| 7 | INCY |
Incyte Corp
|
116,878 | $11,000,557 | |
| 8 | TECH |
BIO-TECHNE Corp
|
208,871 | $10,915,598 |
All Filings in XENE
Export CSV
17 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $14,798,186 | 254,483 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $9,213,602 | 205,569 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $8,366,135 | 208,372 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $5,472,805 | 174,850 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $3,259,348 | 97,149 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $3,786,092 | 96,584 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $3,975,661 | 100,982 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $3,501,302 | 89,800 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $3,951,344 | 91,785 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $4,391,176 | 95,336 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $3,281,887 | 96,074 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $8,166,966 | 212,129 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $7,661,064 | 214,056 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $8,580,756 | 217,620 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $7,850,811 | 217,474 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $1,393,935 | 45,823 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $1,045,494 | 34,200 | Shares | Sole | 2022-05-13 | |
| No filing history on record for this holder in this stock. | ||||||