STATE OF WISCONSIN INVESTMENT BOARD
Position in PTEN — Patterson Uti Energy Inc
CIK 854157
MADISON, WI
Position in PTEN
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$6,398,158
+$2,724,277 QoQ
Shares Held
590,781
-1.7% QoQ
Ownership
0.156%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
18 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
Common Shares in PTEN Over Time
Shares Held
Position Value (USD)
Position in Oil & Gas Drilling
Energy · as of Mar 31, 2026STATE OF WISCONSIN INVESTMENT BOARD holds $17,125,085 across 7 Oil & Gas Drilling names. PTEN ranks #2 (37.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NE |
Noble Corp plc
|
133,016 | $6,527,095 | |
| 2 | PTEN |
Patterson Uti Energy Inc
This page
|
590,781 | $6,398,158 | |
| 3 | HP |
Helmerich & Payne, Inc.
|
48,079 | $1,732,286 | |
| 4 | SOC |
Sable Offshore Corp.
|
57,441 | $948,925 | |
| 5 | RIG |
Transocean Ltd.
|
96,737 | $641,366 | |
| 6 | VAL |
Valaris Ltd
|
6,252 | $612,946 | |
| 7 | SDRL |
SEADRILL Ltd
|
5,809 | $264,309 |
All Filings in PTEN
Export CSV
18 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $6,398,158 | 590,781 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $3,673,881 | 601,290 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $2,834,775 | 547,254 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $3,241,931 | 546,700 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $4,217,969 | 513,135 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $4,206,619 | 509,276 | Shares | Sole | 2025-02-14 | |
| 2024-09-30 | $3,761,948 | 491,758 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $6,303,272 | 608,424 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $6,799,662 | 569,486 | Shares | Sole | 2024-05-14 | |
| 2023-12-31 | $6,346,231 | 587,614 | Shares | Sole | 2024-02-12 | |
| 2023-09-30 | $6,152,129 | 444,518 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $2,300,849 | 192,218 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $2,375,860 | 203,065 | Shares | Sole | 2023-05-15 | |
| 2022-12-31 | $7,772,182 | 461,531 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $5,545,862 | 474,817 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $7,697,420 | 488,415 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $6,726,060 | 434,500 | Shares | Sole | 2022-05-13 | |
| 2020-03-31 | $61,997 | 26,382 | Shares | Sole | 2020-05-06 | |
| No filing history on record for this holder in this stock. | ||||||