PATTERSON-UTI ENERGY INC (PTEN) Institutional Shareholders
PATTERSON-UTI ENERGY INC (PTEN) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended March 31, 2026. The institutional investors covered on this page collectively reported approximately $4.38B in PTEN holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of PTEN tracked by InsiderSet, reporting ownership valued at approximately $659.37M in its March 31, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $625.27M, representing an estimated loss of -5.17% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 53% of the total disclosed PTEN value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in PATTERSON-UTI ENERGY INC (PTEN).
This page ranks the largest institutional PTEN shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
407
Total Reported Value
$4.38B
Largest Holder
Blackrock, Inc.
Largest Position
$659.37M
Insider Transactions (90d)
5
Latest Filing Quarter
Q2 2026
New Institutional Positions
80
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.01% | 60,883,449 | $659,367,748 | $625,273,021 | -$34,094,727 | -5.17% | |
| Vanguard Portfolio Management Llc | 0.02% | 27,059,558 | $293,055,013 | $277,901,661 | -$15,153,352 | -5.17% | |
| Dimensional Fund Advisors Lp | 0.05% | 21,211,576 | $229,732,069 | $217,842,886 | -$11,889,183 | -5.18% | |
| Vanguard Capital Management Llc | 0.00% | 16,620,808 | $180,003,351 | $170,695,698 | -$9,307,653 | -5.17% | |
| American Century Companies Inc | 0.09% | 16,406,052 | $177,677,548 | $168,490,154 | -$9,187,394 | -5.17% | |
| Sourcerock Group Llc | 7.43% | 16,309,517 | $176,632,069 | $167,498,740 | -$9,133,329 | -5.17% | |
| Goldman Sachs Group Inc | 0.02% | 15,235,534 | $165,000,836 | $156,468,934 | -$8,531,902 | -5.17% | |
| State Street Corp | 0.01% | 14,985,593 | $162,293,972 | $153,902,040 | -$8,391,932 | -5.17% | |
| Invesco Ltd. | 0.02% | 13,374,238 | $144,842,997 | $137,353,424 | -$7,489,573 | -5.17% | |
| Fuller & Thaler Asset Management, Inc. | 0.45% | 12,253,350 | $132,703,785 | $125,841,905 | -$6,861,881 | -5.17% | |
| Principal Financial Group Inc | 0.05% | 9,450,347 | $102,347,259 | $97,055,064 | -$5,292,195 | -5.17% | |
| Geode Capital Management, Llc | 0.01% | 8,821,800 | $95,558,052 | $90,599,886 | -$4,958,166 | -5.19% | |
| Blackstone Inc. | 0.32% | 7,139,404 | $77,319,745 | $73,321,679 | -$3,998,066 | -5.17% | |
| Morgan Stanley | 0.00% | 6,899,740 | $74,724,199 | $70,860,330 | -$3,863,869 | -5.17% | |
| Nomura Asset Management International Inc. | 0.12% | 6,697,154 | $72,532,000 | $68,779,772 | -$3,752,228 | -5.17% | |
| Millennium Management Llc | 0.04% | 5,296,308 | $57,359,016 | $54,393,083 | -$2,965,933 | -5.17% | |
| Fisher Asset Management, Llc | 0.02% | 5,160,838 | $55,891,874 | $53,001,806 | -$2,890,068 | -5.17% | |
| Victory Capital Management Inc | 0.03% | 4,864,652 | $52,684,181 | $49,959,976 | -$2,724,205 | -5.17% | |
| Bank Of America Corp | 0.00% | 4,855,166 | $52,581,450 | $49,862,555 | -$2,718,895 | -5.17% | |
| Monaco Asset Management Sam | 15.86% | 4,609,355 | $49,919,315 | $47,338,076 | -$2,581,239 | -5.17% | |
| Charles Schwab Investment Management Inc | 0.01% | 4,418,612 | $47,853,568 | $45,379,145 | -$2,474,423 | -5.17% | |
| Webs Creek Capital Management Lp | 8.21% | 4,379,658 | $47,431,696 | $44,979,088 | -$2,452,608 | -5.17% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 4,128,099 | $44,707,312 | $42,395,577 | -$2,311,735 | -5.17% |
| Bank Of New York Mellon Corp | 0.01% | 3,862,291 | $41,828,615 | $39,665,729 | -$2,162,886 | -5.17% | |
| Northern Trust Corp | 0.01% | 3,802,353 | $41,179,484 | $39,050,165 | -$2,129,319 | -5.17% | |
| Nuveen, Llc | 0.01% | 3,649,361 | $39,522,579 | $37,478,937 | -$2,043,642 | -5.17% | |
| Two Sigma Investments, Lp | 0.03% | 3,584,254 | $38,817,471 | $36,810,289 | -$2,007,182 | -5.17% | |
| Squarepoint Ops Llc | 0.08% | 3,336,500 | $36,134,295 | $34,265,855 | -$1,868,440 | -5.17% | |
| Allspring Global Investments Holdings, Llc | 0.06% | 3,199,449 | $33,114,298 | $32,858,341 | -$255,957 | -0.77% | |
| Merewether Investment Management, Lp | 0.63% | 3,003,324 | $32,525,999 | $30,844,137 | -$1,681,862 | -5.17% | |
| Ubs Group Ag | 0.01% | 2,919,491 | $31,618,087 | $29,983,173 | -$1,634,914 | -5.17% | |
| Holocene Advisors, Lp | 0.07% | 2,858,245 | $30,954,793 | $29,354,176 | -$1,600,617 | -5.17% | |
| Schroder Investment Management Group | 0.02% | 2,674,369 | $29,551,778 | $27,465,770 | -$2,086,008 | -7.06% | |
| Driehaus Capital Management Llc | 0.20% | 2,559,637 | $27,720,869 | $26,287,472 | -$1,433,397 | -5.17% | |
| Citigroup Inc | 0.01% | 3,013,855 | $27,667,189 | $30,952,291 | +$3,285,102 | +11.87% | |
| Neuberger Berman Group Llc | 0.02% | 2,440,039 | $26,450,818 | $25,059,201 | -$1,391,617 | -5.26% | |
| Bridgeway Capital Management, Llc | 0.53% | 2,432,518 | $26,344,170 | $24,981,960 | -$1,362,210 | -5.17% | |
| Vanguard Fiduciary Trust Co | 0.01% | 2,262,687 | $24,504,900 | $23,237,795 | -$1,267,105 | -5.17% | |
| Aqr Capital Management Llc | 0.01% | 2,089,446 | $22,628,697 | $21,458,610 | -$1,170,087 | -5.17% | |
| Barclays Plc | 0.01% | 1,956,581 | $21,189,772 | $20,094,087 | -$1,095,685 | -5.17% | |
| Sir Capital Management, L.P. | 1.74% | 1,716,893 | $18,593,951 | $17,632,491 | -$961,460 | -5.17% | |
| Penn Capital Management Company, Llc | 1.16% | 1,990,225 | $18,306,734 | $20,439,611 | +$2,132,877 | +11.65% | |
| Kahn Brothers Group | Thomas Graham, Alan, Irving Kahns | 3.25% | 1,690,156 | $18,304,389 | $17,357,902 | -$946,487 | -5.17% |
| Arga Investment Management, Lp | 0.47% | 1,985,845 | $18,230,057 | $20,394,628 | +$2,164,571 | +11.87% | |
| Ameriprise Financial Inc | 0.00% | 1,655,731 | $17,931,567 | $17,004,357 | -$927,210 | -5.17% | |
| Franklin Resources Inc | 0.00% | 1,653,850 | $17,911,195 | $16,985,040 | -$926,156 | -5.17% | |
| Edmond De Rothschild Holding S.A. | 0.26% | 1,630,000 | $17,652,900 | $16,740,100 | -$912,800 | -5.17% | |
| Empowered Funds, Llc | 0.11% | 1,521,110 | $16,473,620 | $15,621,800 | -$851,820 | -5.17% | |
| Public Sector Pension Investment Board | 0.04% | 1,235,766 | $13,383,346 | $12,691,317 | -$692,029 | -5.17% | |
| J. Goldman & Co Lp | 0.60% | 1,202,375 | $13,021,721 | $12,348,391 | -$673,330 | -5.17% |
Frequently asked questions about PTEN
Who owns the most PTEN stock?
The largest holders of PTEN are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for PATTERSON-UTI ENERGY INC (PTEN).
Is PTEN widely held by superinvestors?
Many widely followed stocks like PTEN appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly PTEN is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.