NOV Inc.
MX ˙ BMV ˙ US62955J1034
SecurityMX:NOV / NOV Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership206,288 shares
Latest Disclosed Value $ 3,880,278
Citigroup Inc ownership in NOV / NOV Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 206,288 shares of NOV Inc. (MX:NOV) valued at $3,880,278 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 170,892 shares of NOV Inc.. This represents a change in shares of 20.71% during the quarter.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (NOV) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:NOV / NOV Inc. Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-11 2026-03-31 13F NOV COM 62955J103 206,288 35,396 20.71 3,880 45.26 0.0008
2026-02-13 2025-12-31 13F NOV COM 62955J103 170,892 -186,637 -52.20 2,671 -43.61 0.0012
2025-11-10 2025-09-30 13F NOV COM 62955J103 357,529 86,854 32.09 4,737 40.81 0.0021
2025-08-11 2025-06-30 13F NOV COM 62955J103 270,675 73,850 37.52 3,364 12.32 0.0017
2025-05-12 2025-03-31 13F NOV COM 62955J103 196,825 -11,737 -5.63 2,996 -1.64 0.0015
2025-02-12 2024-12-31 13F NOV COM 62955J103 208,562 91,012 77.42 3,045 62.23 0.0018
2024-11-12 2024-09-30 13F NOV COM 62955J103 117,550 16,253 16.04 1,877 -2.49 0.0011
2024-08-12 2024-06-30 13F NOV COM 62955J103 101,297 22,058 27.84 1,926 24.51 0.0012
2024-05-10 2024-03-31 13F NOV COM 62955J103 79,239 -11,716 -12.88 1,547 -16.16 0.0010
2024-02-09 2023-12-31 13F NOV COM 62955J103 90,955 41,496 83.90 1,845 78.51 0.0013
2023-12-06 2023-09-30 13F/A-1 NOV COM 62955J103 49,459 -204,121 -80.50 1,034 -74.60 0.0008
2023-11-09 2023-09-30 13F NOV COM 62955J103 49,459 -204,121 1,034 0.0008
2023-08-10 2023-06-30 13F NOV COM 62955J103 253,580 179,545 242.51 4,067 196.86 0.0027
2023-05-11 2023-03-31 13F NOV COM 62955J103 74,035 -6,126 -7.64 1,370 -18.16 0.0010
2023-02-09 2022-12-31 13F NOV COM 62955J103 80,161 -76,302 -48.77 1,675 -33.86 0.0013
2022-11-10 2022-09-30 13F NOV COM 62955J103 156,463 101,341 183.85 2,531 171.57 0.0018
2022-08-10 2022-06-30 13F NOV COM 62955J103 55,122 -33,575 -37.85 932 -46.41 0.0007
2022-05-12 2022-03-31 13F NOV COM 62955J103 88,697 -29,340 -24.86 1,739 8.76 0.0011
2022-02-10 2021-12-31 13F NOV COM 62955J103 118,037 -236,658 -66.72 1,599 -65.61 0.0009
2021-11-10 2021-09-30 13F NOV COM 62955J103 354,695 -53,121 -13.03 4,650 -25.58 0.0027
2021-08-10 2021-06-30 13F NOV COM 62955J103 407,816 -4,452,807 -91.61 6,248 -90.63 0.0038
2021-05-13 2021-03-31 13F NOV COM 62955J103 4,860,623 4,860,623 66,688 0.0431
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-02-09 2023-12-31 13F NOV COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-12-06 2023-09-30 13F/A NOV COM Call 18,600 389 n/a n/a n/a
2023-11-09 2023-09-30 13F NOV COM Call 18,600 389 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.