Patterson-UTI Energy
PTEN · NASDAQ
$11.63−$0.42 (−3.49%)TodayMarket closed ·
Prev close $12.05
Who owns PTEN
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 52.9% of PTEN’s shares.
- BlackRock Institutional Trust Company, N.A.13.9%
- Vanguard Portfolio Management, LLC7.2%
- Dimensional Fund Advisors, L.P.6.0%
- Vanguard Capital Management, LLC4.4%
- Next 6 largest institutions21.5%
- All other shareholders47.1%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 52.77M | 13.90% |
| Vanguard Portfolio Management, LLC | 27.20M | 7.17% |
| Dimensional Fund Advisors, L.P. | 22.78M | 6.00% |
| Vanguard Capital Management, LLC | 16.68M | 4.39% |
| American Century Investment Management, Inc. | 16.25M | 4.28% |
| State Street Investment Management (US) | 15.10M | 3.98% |
| Sourcerock Group LLC | 14.55M | 3.83% |
| Goldman Sachs & Co. LLC | 12.68M | 3.34% |
| Fuller & Thaler Asset Management Inc. | 11.82M | 3.11% |
| Invesco Advisers, Inc. | 11.12M | 2.93% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| iShares Core S&P Small-Cap ETF | 21.06M | 5.55% |
| Avantis US Small Cap Value ETF | 14.57M | 3.84% |
| Vanguard Total Stock Market Index Fund | 12.10M | 3.19% |
| Invesco Small Cap Value Fund | 10.81M | 2.85% |
| Undiscovered Managers Behavioral Value Fund | 9.45M | 2.49% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $24.62M (13 trades) of PTEN on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Hendricks William Andrew JR | Sale | 250.00K | $2.98M |
| Drummond Robert Wayne Jr | Sale | 198.40K | $2.55M |
| Hendricks William Andrew JR | Sale | 250.00K | $3.23M |
| Drummond Robert Wayne Jr | Sale | 1.60K | $20.62K |
| Wexler Seth David | Sale | 120.00K | $1.53M |
| STEWART JAMES CARL | Sale | 207.00K | $2.39M |
| Robinson Forrest C | Tax withholding | 5.75K | $68.41K |
| Robinson Forrest C | Award | 20.83K | — |
| Robinson Forrest C | Sale | 13.67K | $164.18K |
| Hendricks William Andrew JR | Sale | 200.00K | $2.33M |
Short interest
Settled Sep 30, 2026
- Shares short
- 30.70M
- Days to cover
- 3.60
- % of shares outstanding
- 8.09%
- Average daily volume
- 8.52M
- Change since last report
- −10.4%
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