RPC, Inc.
US ˙ NYSE ˙ US7496601060

SecurityRES / RPC, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership643,127 shares
Latest Disclosed Value $ 4,553,340
Citigroup Inc ownership in RES / RPC, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 643,127 shares of RPC, Inc. (US:RES) valued at $4,553,339 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 376,134 shares of RPC, Inc.. This represents a change in shares of 70.98% during the quarter. The current value of the position is $4,579,064 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (RES) in the form of stock options.

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.

RES / RPC, 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 RPC COM 749660106 643,127 266,993 70.98 4,553 122.53 0.0010
2026-02-13 2025-12-31 13F RPC COM 749660106 376,134 -53,633 -12.48 2,046 0.05 0.0009
2025-11-10 2025-09-30 13F RPC COM 749660106 429,767 215,350 100.44 2,046 101.68 0.0009
2025-08-11 2025-06-30 13F RPC COM 749660106 214,417 52,604 32.51 1,014 14.06 0.0005
2025-05-12 2025-03-31 13F RPC COM 749660106 161,813 10,313 6.81 890 -1.11 0.0005
2025-02-12 2024-12-31 13F RPC COM 749660106 151,500 24,294 19.10 900 11.12 0.0005
2024-11-12 2024-09-30 13F RPC COM 749660106 127,206 52,421 70.10 809 73.23 0.0005
2024-08-12 2024-06-30 13F RPC COM 749660106 74,785 9,609 14.74 467 -7.34 0.0003
2024-05-10 2024-03-31 13F RPC COM 749660106 65,176 13,163 25.31 504 33.33 0.0003
2024-02-09 2023-12-31 13F RPC COM 749660106 52,013 17,174 49.30 379 21.54 0.0003
2023-12-06 2023-09-30 13F/A-1 RPC COM 749660106 34,839 -26,546 -43.25 311 -29.00 0.0002
2023-11-09 2023-09-30 13F RPC COM 749660106 34,839 -26,546 311 0.0001
2023-08-10 2023-06-30 13F RPC COM 749660106 61,385 -45,558 -42.60 439 -46.72 0.0003
2023-05-11 2023-03-31 13F RPC COM 749660106 106,943 44,234 70.54 822 47.58 0.0006
2023-02-09 2022-12-31 13F RPC COM 749660106 62,709 12,378 24.59 557 59.60 0.0004
2022-11-10 2022-09-30 13F RPC COM 749660106 50,331 14,531 40.59 349 41.30 0.0002
2022-08-10 2022-06-30 13F RPC COM 749660106 35,800 -24,835 -40.96 247 -61.82 0.0002
2022-05-12 2022-03-31 13F RPC COM 749660106 60,635 6,767 12.56 647 164.08 0.0004
2022-02-10 2021-12-31 13F RPC COM 749660106 53,868 16,387 43.72 245 34.62 0.0001
2021-11-10 2021-09-30 13F RPC COM 749660106 37,481 4,331 13.06 182 10.98 0.0001
2021-08-10 2021-06-30 13F RPC COM 749660106 33,150 11,950 56.37 164 43.86 0.0001
2021-05-13 2021-03-31 13F RPC COM 749660106 21,200 5,649 36.33 114 132.65 0.0001
2021-02-11 2020-12-31 13F RPC COM 749660106 15,551 9,661 164.02 49 206.25 0.0000
2020-11-12 2020-09-30 13F RPC COM 749660106 5,890 -20,423 -77.62 16 -80.25 0.0000
2020-08-12 2020-06-30 13F RPC COM 749660106 26,313 -235,084 -89.93 81 -84.94 0.0001
2020-05-12 2020-03-31 13F RPC COM 749660106 261,397 235,156 896.14 538 292.70 0.0005
2020-02-12 2019-12-31 13F RPC COM 749660106 26,241 8,200 45.45 137 35.64 0.0001
2019-11-08 2019-09-30 13F RPC COM 749660106 18,041 -11,215 -38.33 101 -52.13 0.0001
2019-08-12 2019-06-30 13F RPC COM 749660106 29,256 12,845 78.27 211 12.83 0.0002
2019-05-13 2019-03-31 13F RPC COM 749660106 16,411 777 4.97 187 21.43 0.0002
2019-02-12 2018-12-31 13F RPC COM 749660106 15,634 -12,694 -44.81 154 -64.92 0.0002
2018-11-13 2018-09-30 13F RPC COM 749660106 28,328 28,328 439 0.0004
2018-08-10 2018-06-30 13F RPC COM 749660106 0 -1,454 -100.00 0 -100.00
2018-05-11 2018-03-31 13F RPC COM 749660106 1,454 -394,602 -99.63 26 -99.74 0.0000
2018-02-12 2017-12-31 13F RPC COM 749660106 396,056 392,869 12,327.24 10,111 12,698.73 0.0081
2017-11-13 2017-09-30 13F RPC COM 749660106 3,187 -7,848 -71.12 79 -64.57 0.0001
2017-08-11 2017-06-30 13F RPC COM 749660106 11,035 -1,122 -9.23 223 0.45 0.0002
2017-05-12 2017-03-31 13F RPC COM 749660106 12,157 -21,309 -63.67 222 -66.52 0.0002
2017-02-10 2016-12-31 13F RPC COM 749660106 33,466 -84,644 -71.67 663 -66.58 0.0006
2016-11-10 2016-09-30 13F RPC COM 749660106 118,110 98,708 508.75 1,984 559.14 0.0019
2016-08-12 2016-06-30 13F RPC COM 749660106 19,402 -2,125 -9.87 301 -1.31 0.0003
2016-05-13 2016-03-31 13F RPC COM 749660106 21,527 -170 -0.78 305 17.31 0.0003
2016-02-12 2015-12-31 13F RPC COM 749660106 21,697 -25,117 -53.65 260 -37.20 0.0003
2015-11-13 2015-09-30 13F RPC COM 749660106 46,814 -73,393 -61.06 414 -75.11 0.0004
2015-08-13 2015-06-30 13F RPC COM 749660106 120,207 58,586 95.07 1,663 110.77 0.0015
2015-05-14 2015-03-31 13F RPC COM 749660106 61,621 25,134 68.88 789 65.76 0.0008
2015-02-17 2014-12-31 13F RPC COM 749660106 36,487 8,314 29.51 476 -22.98 0.0004
2014-11-14 2014-09-30 13F RPC COM 749660106 28,173 18,953 205.56 618 186.11 0.0005
2014-08-14 2014-06-30 13F RPC COM 749660106 9,220 -2,254 -19.64 216 -8.09 0.0002
2014-05-15 2014-03-31 13F RPC COM 749660106 11,474 3,897 51.43 235 74.07 0.0002
2014-02-14 2013-12-31 13F RPC COM 749660106 7,577 741 10.84 135 27.36 0.0001
2013-11-14 2013-09-30 13F RPC COM 749660106 6,836 -4,060 -37.26 106 -29.80 0.0001
2013-08-14 2013-06-30 13F RPC COM 749660106 10,896 10,896 151 0.0001
Disclosed Put 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
(%)
2017-02-10 2016-12-31 13F RPC COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2016-11-10 2016-09-30 13F RPC COM Put 70,000 1,176 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.