STATE OF WISCONSIN INVESTMENT BOARD
Position in PTEN — Patterson Uti Energy Inc
CIK 854157
MADISON, WI
Position in PTEN
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$4,638,709
-$1,759,449 QoQ
Shares Held
505,306
-14.5% QoQ
Ownership
0.132%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#86
of 435 holders
Holding Since
Mar 2020
19 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in PTEN Over Time
Shares Held
Position Value (USD)
Position in Oil & Gas Drilling
Energy · as of Jun 30, 2026STATE OF WISCONSIN INVESTMENT BOARD holds $16,340,565 across 10 Oil & Gas Drilling names. PTEN ranks #2 (28.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | NE |
Noble Corp plc
|
125,828 | $4,693,384 | |
| 2 | PTEN |
Patterson Uti Energy Inc
This page
|
505,306 | $4,638,709 | |
| 3 | PDS |
PRECISION DRILLING Corp
|
46,800 | $3,587,688 | |
| 4 | RIG |
Transocean Ltd.
|
201,669 | $986,161 | |
| 5 | HP |
Helmerich & Payne, Inc.
|
23,613 | $773,089 | |
| 6 | VAL |
Valaris Ltd
|
7,411 | $538,038 | |
| 7 | BORR |
Borr Drilling Ltd
|
90,021 | $371,786 | |
| 8 | SDRL |
SEADRILL Ltd
|
8,378 | $316,855 |
All Filings in PTEN
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19 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $4,638,709 | 505,306 | Shares | Sole | 2026-08-14 | |
| 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. | ||||||