RPC, Inc.
US ˙ NYSE ˙ US7496601060

SecurityRES / RPC, Inc.
InstitutionNorthern Trust Corp
Latest Disclosed Ownership989,414 shares
Latest Disclosed Value $ 7,005,051
Northern Trust Corp reports 4.21% increase in ownership of RES / RPC, Inc.

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 989,414 shares of RPC, Inc. (US:RES) valued at $7,005,051 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 949,406 shares of RPC, Inc.. This represents a change in shares of 4.21% during the quarter. The current value of the position is $7,183,146 USD.

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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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)
2026-05-14 2026-03-31 13F RPC COM 749660106 989,414 40,008 4.21 7,005 35.65 0.0002
2026-02-17 2025-12-31 13F RPC COM 749660106 949,406 -65,685 -6.47 5,165 6.89 0.0007
2025-11-14 2025-09-30 13F RPC COM 749660106 1,015,091 -112,304 -9.96 4,832 -9.40 0.0006
2025-08-13 2025-06-30 13F RPC COM 749660106 1,127,395 -2,063 -0.18 5,333 -14.17 0.0007
2025-05-13 2025-03-31 13F RPC COM 749660106 1,129,458 -38,596 -3.30 6,212 -10.46 0.0009
2025-02-14 2024-12-31 13F RPC COM 749660106 1,168,054 152,714 15.04 6,938 7.45 0.0010
2024-11-13 2024-09-30 13F RPC COM 749660106 1,015,340 92,555 10.03 6,458 11.96 0.0011
2024-08-14 2024-06-30 13F RPC COM 749660106 922,785 -28,419 -2.99 5,767 -21.67 0.0010
2024-05-14 2024-03-31 13F RPC COM 749660106 951,204 -48,862 -4.89 7,362 1.13 0.0013
2024-02-13 2023-12-31 13F RPC COM 749660106 1,000,066 -51,174 -4.87 7,280 -22.54 0.0013
2023-11-13 2023-09-30 13F RPC COM 749660106 1,051,240 4,000 0.38 9,398 25.52 0.0018
2023-08-11 2023-06-30 13F RPC COM 749660106 1,047,240 274,694 35.56 7,488 26.04 0.0014
2023-05-15 2023-03-31 13F RPC COM 749660106 772,546 4,288 0.56 5,941 -13.02 0.0012
2023-02-13 2022-12-31 13F RPC COM 749660106 768,258 3,459 0.45 6,830 28.85 0.0014
2022-11-14 2022-09-30 13F RPC COM 749660106 764,799 17,920 2.40 5,300 2.71 0.0012
2022-08-12 2022-06-30 13F RPC COM 749660106 746,879 45,803 6.53 5,160 -31.03 0.0011
2022-05-13 2022-03-31 13F RPC COM 749660106 701,076 -16,576 -2.31 7,481 129.62 0.0013
2022-02-08 2021-12-31 13F RPC COM 749660106 717,652 -64,298 -8.22 3,258 -14.26 0.0005
2021-11-15 2021-09-30 13F RPC COM 749660106 781,950 -692,184 -46.96 3,800 -47.93 0.0007
2021-08-13 2021-06-30 13F RPC COM 749660106 1,474,134 62,358 4.42 7,298 -4.28 0.0013
2021-05-12 2021-03-31 13F RPC COM 749660106 1,411,776 -745,871 -34.57 7,624 12.18 0.0014
2021-02-11 2020-12-31 13F RPC COM 749660106 2,157,647 -16,402 -0.75 6,796 18.42 0.0013
2020-11-16 2020-09-30 13F RPC COM 749660106 2,174,049 -14,296 -0.65 5,739 -14.85 0.0013
2020-08-14 2020-06-30 13F RPC COM 749660106 2,188,345 -37,986 -1.71 6,740 46.97 0.0016
2020-05-14 2020-03-31 13F RPC COM 749660106 2,226,331 4,324 0.19 4,586 -60.61 0.0013
2020-02-14 2019-12-31 13F RPC COM 749660106 2,222,007 717,724 47.71 11,643 37.95 0.0026
2019-11-13 2019-09-30 13F RPC COM 749660106 1,504,283 1,036,147 221.33 8,440 150.00 0.0020
2019-08-13 2019-06-30 13F RPC COM 749660106 468,136 -31,827 -6.37 3,376 -40.82 0.0008
2019-05-13 2019-03-31 13F RPC COM 749660106 499,963 55,652 12.53 5,705 30.10 0.0014
2019-02-12 2018-12-31 13F RPC COM 749660106 444,311 -17,191 -3.73 4,385 -38.63 0.0012
2018-11-14 2018-09-30 13F RPC COM 749660106 461,502 47,217 11.40 7,145 18.37 0.0017
2018-09-18 2018-06-30 13F/A-1 RPC COM 749660106 414,285 49,335 13.52 6,036 -8.27 0.0015
2018-08-14 2018-06-30 13F RPC COM 749660106 428,999 64,049 6,250
2018-05-09 2018-03-31 13F RPC COM 749660106 364,950 -1,615 -0.44 6,580 -29.69 0.0017
2018-02-14 2017-12-31 13F RPC COM 749660106 366,565 -1,398 -0.38 9,359 2.60 0.0024
2017-11-13 2017-09-30 13F RPC COM 749660106 367,963 -1,646 -0.45 9,122 22.12 0.0024
2017-08-11 2017-06-30 13F RPC COM 749660106 369,609 1,951 0.53 7,470 10.96 0.0021
2017-05-12 2017-03-31 13F RPC COM 749660106 367,658 20,479 5.90 6,732 -2.12 0.0019
2017-02-13 2016-12-31 13F RPC COM 749660106 347,179 -81,855 -19.08 6,878 -4.57 0.0021
2016-11-09 2016-09-30 13F RPC COM 749660106 429,034 2,716 0.64 7,207 8.85 0.0022
2016-08-12 2016-06-30 13F RPC COM 749660106 426,318 -1,873 -0.44 6,621 29.70 0.0021
2016-08-19 2016-03-31 13F/A-1 RPC COM 749660106 428,191 2,430 0.57 5,105 0.35 0.0017
2016-05-13 2016-03-31 13F Rpc COMM 749660106 428,179 6,071
2016-02-12 2015-12-31 13F Rpc COMM 749660106 425,761 -2,296 -0.54 5,087 34.26 0.0017
2015-11-12 2015-09-30 13F Rpc COMM 749660106 428,057 428,057 0.00 3,789 0.0013
2015-08-13 2015-06-30 13F Rpc COMM 749660106 0 -499,172 -100.00 0 -100.00
2015-05-14 2015-03-31 13F Rpc COMM 749660106 499,172 -16,086 -3.12 6,394 -4.84 0.0019
2015-02-12 2014-12-31 13F Rpc COM 749660106 515,258 35,910 7.49 6,719 -36.17 0.0020
2014-11-13 2014-09-30 13F Rpc COMM 749660106 479,348 69,975 17.09 10,527 9.46 0.0033
2014-08-14 2014-06-30 13F RPC com 749660106 409,373 -109,072 -21.04 9,617 -9.16 0.0030
2014-05-14 2014-03-31 13F RPC COMM 749660106 518,445 -440,810 -45.95 10,587 -38.17 0.0033
2014-02-21 2013-12-31 13F/A-1 RPC COM 749660106 959,255 -16,111 -1.65 17,122 13.48 0.0055
2014-02-12 2013-12-31 13F RPC COM 749660106 959,255 17,122
2013-11-13 2013-09-30 13F RPC COM 749660106 975,366 -66,508 -6.38 15,088 4.86 0.0053
2013-08-09 2013-06-30 13F RPC COM 749660106 1,041,874 1,041,874 14,389 0.0052
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.