Holder evidence
50
SEC ownership of NOV Inc.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001021860.
Lead holder
PZENA INVESTMENT MANAGEMENT LLC
13D/G signal
PZENA INVESTMENT MANAGEMENT LLC
Latest evidence
20 May 2026
- CIK
- 0001021860
- Symbol
- NOV on NYSE
- Location
- Houston, TX
- SEC evidence mix
- 13F, 13D/G, and 3/4/5
- Lead holder
- PZENA INVESTMENT MANAGEMENT LLC
- Latest large-stake holder
- PZENA INVESTMENT MANAGEMENT LLC
- Latest evidence date
- 20 May 2026
Issuer identity
Ownership snapshot
Ownership snapshot
Top shareholders of NOV Inc. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Lead holder
PZENA INVESTMENT MANAGEME...
13D/G signal
PZENA INVESTMENT MANAGEME...
Evidence rows
50
Latest as of
20 May 2026
13F
13D/G
3/4/5
Lead comparable stake: 11%
13D/G row: PZENA INVESTMENT MANAGEMENT LLC
Showing first 8 of 50 holder rows.
Open remaining rows
Rank 1 holder
PZENA INVESTMENT MANAGEMENT LLC
13F
13D/G
- Ownership
- 11%
- Position
- $706.04M
Rank 2 holder
First Eagle Investment Management, LLC
13F
13D/G
- Ownership
- 10%
- Position
- $684.84M
Rank 3 holder
VANGUARD PORTFOLIO MANAGEMENT LLC
13D/G
13F
- Ownership
- 5.2%
- Position
- $356.06M
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| PZENA INVESTMENT MANAGEMENT LLC |
13F
13D/G
Company
|
11%
from 13D/G
|
$706,041,796
37,535,449 shares
|
— | 31 Mar 2026 |
| First Eagle Investment Management, LLC |
13F
13D/G
Company
|
10%
from 13D/G
|
$684,841,237
36,408,359 shares
|
— | 31 Mar 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.2%
|
$356,056,333
18,929,098 shares
|
$0 | 31 Mar 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
5.2%
|
$355,618,305
18,905,811 shares
|
$0 | 31 Mar 2026 |
| DIMENSIONAL FUND ADVISORS LP |
13F
13D/G
Company
|
5%
from 13D/G
|
$364,987,247
19,404,319 shares
|
— | 31 Mar 2026 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC |
13D/G
13F
Hotchkis and Wiley Capital Management, LLC · Company
|
4.1%
|
$292,872,003
14,919,613 shares
|
-$344,429,040 | 31 Mar 2026 |
| Jose A. Bayardo |
3/4/5
Chairman, President, and CEO, Director
|
0.21%
|
$15,204,374
745,678 shares
|
— | 20 Mar 2026 |
| Joseph W. Rovig |
3/4/5
President - Energy Equipment
|
0.07%
|
$5,430,116
267,841 shares
|
-$3,046,695 | 23 Feb 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$3,439,916.
Buys
$1,012,200
Insiders: 1
Sells
$4,452,116
Insiders: 2
Net
-$3,439,916
Shares: -151,086
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 70,000
Shares: 221,086
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 0 | $0 | $0 | $0 |
| 3-6 | 0 | 221,086 | $0 | $4,452,116 | -$4,452,116 |
| 6-9 | 70,000 | 0 | $1,012,200 | $0 | +$1,012,200 |
| 9-12 | 0 | 0 | $0 | $0 | $0 |
Reporting owners
Insider holders from Forms 3/4/5
Current reporting-owner rows connected to NOV Inc.. Open the relationship link for the CIK-to-CIK filing trail.
Rows
22
Lead holder
Clay C. Williams
Net 12M change
-$3,439,917
Latest report
20 May 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Clay C. Williams | Chairman, President and CEO, Director | $24,763,794 | Mixed | 23 Feb 2025 | ||
| Jose A. Bayardo | Chairman, President, and CEO, Director | $15,204,374 | Mixed | 20 Mar 2026 | ||
| Kirk M. Shelton | President - Completion and Production Solutions | $5,754,268 | Mixed | 25 Feb 2023 | ||
| Joseph W. Rovig | President - Energy Equipment | $5,430,116 | -$3,046,695 | -36% | Mixed | 23 Feb 2026 |
| Craig L. Weinstock | Sr. VP. & Gen. Counsel | $5,146,191 | -$1,405,422 | -21% | Mixed | 23 Feb 2026 |
| Isaac H. Joseph | President - Wellbore Technologies | $4,837,259 | Mixed | 25 Feb 2023 | ||
| Rodney C. Reed | Senior VP and CFO | $3,412,102 | Mixed | 20 Mar 2026 | ||
| David D. Harrison | Director | $2,564,875 | Median | 20 May 2026 | ||
| Scott B. Livingston | President, Energy Products and Services. | $2,397,359 | Mixed | 23 Feb 2026 | ||
| Christy H. Novak | VP, Corp. Controller, CAO | $2,091,218 | Mixed | 20 Mar 2026 | ||
| Marcela E. Donadio | Director | $2,010,450 | Median | 20 May 2026 | ||
| Ben A. Guill | Director | $1,966,080 | Mixed | 20 May 2025 | ||
| William R. Thomas | Director | $1,902,932 | Median | 20 May 2026 | ||
| Christian S. Kendall | Director | $1,794,586 | +$1,012,200 | +129% | Median | 20 May 2026 |
| Hackett James T. | Director | $1,546,843 | Mixed | 31 Dec 2022 | ||
| Greg L. Armstrong | Director | $1,333,716 | Mixed | 20 May 2025 | ||
| Robert S. Welborn | Director | $1,042,619 | Median | 20 May 2026 | ||
| Melody B. Meyer | Director | $950,721 | Mixed | 24 May 2022 | ||
| Eric L. Mattson | Director | $850,020 | Mixed | 20 May 2025 | ||
| Patricia B. Melcher | Director | $659,403 | Median | 20 May 2026 | ||
| Patricia Martinez | Director | $657,522 | Median | 20 May 2026 | ||
| Sanjay K. Chowbey | Director | $177,886 | Median | 20 May 2026 |
Recent insider transactions for NOV Inc.
Showing up to 300 most recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | Reported value | Reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Marcela E. Donadio | NOV | Common Stock | Award | 9.71% | 9,457 | 106,882 | 20 May 2026 | Direct | ||
| Sanjay K. Chowbey | NOV | Common Stock | Award | 9,457 | 9,457 | 20 May 2026 | Direct | |||
| Patricia Martinez | NOV | Common Stock | Award | 37.1% | 9,457 | 34,956 | 20 May 2026 | Direct | ||
| Robert S. Welborn | NOV | Common Stock | Award | 20.6% | 9,457 | 55,429 | 20 May 2026 | Direct | ||
| William R. Thomas | NOV | Common Stock | Award | 10.3% | 9,457 | 101,166 | 20 May 2026 | Direct | ||
| David D. Harrison | NOV | Common Stock | Award | 7.45% | 9,457 | 136,357 | 20 May 2026 | Direct | ||
| Christian S. Kendall | NOV | Common Stock | Award | 11% | 9,457 | 95,406 | 20 May 2026 | Direct | ||
| Patricia B. Melcher | NOV | Common Stock | Award | 37.1% | 9,457 | 34,956 | 20 May 2026 | Direct | ||
| Jose A. Bayardo | NOV | Common Stock | Tax liability | -0.67% | -4,995 | 745,678 | 20 Mar 2026 | Direct | ||
| Christy H. Novak | NOV | Common Stock | Tax liability | -0.84% | -869 | 102,561 | 20 Mar 2026 | Direct | ||
| Rodney C. Reed | NOV | Common Stock | Tax liability | -2.92% | -4,995 | 165,797 | 20 Mar 2026 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Tax liability | -1% | -2,562 | 253,757 | 23 Feb 2026 | Direct | ||
| Rodney C. Reed | NOV | Common Stock | Tax liability | -1.18% | -2,035 | 170,792 | 23 Feb 2026 | Direct | ||
| Christy H. Novak | NOV | Common Stock | Tax liability | -3.58% | -3,843 | 103,430 | 23 Feb 2026 | Direct | ||
| Jose A. Bayardo | NOV | Common Stock | Tax liability | -0.56% | -4,220 | 750,673 | 23 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Tax liability | -1.06% | -2,864 | 266,830 | 23 Feb 2026 | Direct | ||
| Scott B. Livingston | NOV | Common Stock | Tax liability | -1.05% | -1,259 | 118,213 | 23 Feb 2026 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Sale | -21.4% | $1,405,422 | $20.08 | -70,000 | 256,319 | 23 Feb 2026 | Direct |
| Craig L. Weinstock | NOV | Common Stock | Options Exercise | 18.1% | 50,000 | 326,319 | 23 Feb 2026 | Direct | ||
| Craig L. Weinstock | NOV | Non-Qualified Stock Option (right to buy) | Options Exercise | -70.2% | -50,000 | 21,178 | 23 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Sale | -35.9% | $3,046,695 | $20.17 | -151,086 | 269,694 | 23 Feb 2026 | Direct |
| Joseph W. Rovig | NOV | Common Stock | Options Exercise | 56% | 151,086 | 420,780 | 23 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Non-Qualified Stock Option (right to buy) | Options Exercise | -100% | -151,086 | 0 | 23 Feb 2026 | Direct | ||
| Rodney C. Reed | NOV | Common Stock | Tax liability | -1.97% | -3,477 | 172,827 | 19 Feb 2026 | Direct | ||
| Christy H. Novak | NOV | Common Stock | Tax liability | -5.77% | -6,568 | 107,273 | 19 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Tax liability | -2.36% | -6,525 | 269,694 | 19 Feb 2026 | Direct | ||
| Scott B. Livingston | NOV | Common Stock | Tax liability | -2.6% | -3,188 | 119,472 | 19 Feb 2026 | Direct | ||
| Jose A. Bayardo | NOV | Common Stock | Tax liability | -1.26% | -9,615 | 754,893 | 19 Feb 2026 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Tax liability | -2.07% | -5,838 | 276,319 | 19 Feb 2026 | Direct | ||
| Christy H. Novak | NOV | Common Stock | Award | 31.3% | 27,139 | 113,841 | 18 Feb 2026 | Direct | ||
| Scott B. Livingston | NOV | Common Stock | Award | 29.6% | 28,014 | 122,660 | 18 Feb 2026 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Tax liability | -4.48% | -13,223 | 282,157 | 18 Feb 2026 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Award | 27.3% | 63,367 | 295,380 | 18 Feb 2026 | Direct | ||
| Rodney C. Reed | NOV | Common Stock | Award | 22.5% | 32,391 | 176,304 | 18 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Tax liability | -4.75% | -13,767 | 276,219 | 18 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Award | 32.3% | 70,822 | 289,986 | 18 Feb 2026 | Direct | ||
| Jose A. Bayardo | NOV | Common Stock | Tax liability | -2.77% | -21,779 | 764,508 | 18 Feb 2026 | Direct | ||
| Jose A. Bayardo | NOV | Common Stock | Award | 31.1% | 186,661 | 786,287 | 18 Feb 2026 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Tax liability | -1.35% | -3,182 | 232,013 | 06 Feb 2026 | Direct | ||
| Rodney C. Reed | NOV | Common Stock | Tax liability | -1.73% | -2,527 | 143,913 | 06 Feb 2026 | Direct | ||
| Christy H. Novak | NOV | Common Stock | Tax liability | -5.22% | -4,773 | 86,702 | 06 Feb 2026 | Direct | ||
| Jose A. Bayardo | NOV | Common Stock | Tax liability | -0.87% | -5,241 | 599,626 | 06 Feb 2026 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Tax liability | -0.99% | -2,201 | 219,164 | 06 Feb 2026 | Direct | ||
| Scott B. Livingston | NOV | Common Stock | Tax liability | -1.8% | -1,738 | 94,646 | 06 Feb 2026 | Direct | ||
| Christy H. Novak | NOV | Common Stock | Disposed to Issuer | -100% | -450 | 0 | 24 Nov 2025 | by IRA Account | ||
| Christy H. Novak | NOV | Common Stock | Disposed to Issuer | -19% | -21,435 | 91,475 | 24 Nov 2025 | Direct | ||
| Craig L. Weinstock | NOV | Common Stock | Disposed to Issuer | -14.3% | -39,179 | 235,195 | 24 Nov 2025 | Direct | ||
| Joseph W. Rovig | NOV | Common Stock | Disposed to Issuer | -15.3% | -40,000 | 221,365 | 24 Nov 2025 | Direct | ||
| Christian S. Kendall | NOV | Common Stock | Purchase | 438.9% | $1,012,200 | $14.46 | 70,000 | 85,949 | 21 Nov 2025 | Direct |
* indicates a reported price that failed the local validity check.