STATE OF WISCONSIN INVESTMENT BOARD
Position in PBYI — Puma Biotechnology, Inc.
CIK 854157
MADISON, WI
Position in PBYI
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$1,333,069
+$537,114 QoQ
Shares Held
208,618
+55.9% QoQ
Ownership
0.410%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
8 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PBYI Over Time
Shares Held
Position Value (USD)
Position in Biotechnology
Healthcare · as of Mar 31, 2026STATE OF WISCONSIN INVESTMENT BOARD holds $453,876,954 across 164 Biotechnology names. PBYI ranks #71 (0.3% 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.
|
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 PBYI
Export CSV
8 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $1,333,069 | 208,618 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $795,955 | 133,774 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $288,428 | 54,318 | Shares | Sole | 2025-11-14 | |
| 2021-03-31 | $485,028 | 49,900 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $713,070 | 69,500 | Shares | Sole | 2021-02-03 | |
| 2020-09-30 | $805,182 | 79,800 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $583,037 | 55,900 | Shares | Sole | 2020-08-12 | |
| 2020-03-31 | $501,336 | 59,400 | Shares | Sole | 2020-05-06 | |
| No filing history on record for this holder in this stock. | ||||||