RPC, Inc.
US ˙ NYSE ˙ US7496601060

SecurityRES / RPC, Inc.
InstitutionMorgan Stanley
Latest Disclosed Ownership1,953,580 shares
Latest Disclosed Value $ 13,831,353
Morgan Stanley reports 24.57% increase in ownership of RES / RPC, Inc.

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,953,580 shares of RPC, Inc. (US:RES) valued at $13,831,346 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,568,280 shares of RPC, Inc.. This represents a change in shares of 24.57% during the quarter. The current value of the position is $14,182,991 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)
2026-05-15 2026-03-31 13F RPC COM 749660106 1,953,580 385,300 24.57 13,831 62.13 0.0008
2026-05-27 2025-12-31 13F/A-1 RPC COM 749660106 1,568,280 -203,687 -11.49 8,531 1.15 0.0005
2026-02-13 2025-12-31 13F RPC COM 749660106 1,568,280 -203,687 8,531 0.0005
2026-05-27 2025-09-30 13F/A-1 RPC COM 749660106 1,771,967 638,404 56.32 8,435 57.32 0.0005
2025-11-14 2025-09-30 13F RPC COM 749660106 1,771,967 638,404 8,435 0.0005
2025-08-15 2025-06-30 13F RPC COM 749660106 1,133,563 -404,907 -26.32 5,362 -36.64 0.0003
2025-05-15 2025-03-31 13F RPC COM 749660106 1,538,470 -431,914 -21.92 8,462 -27.71 0.0006
2025-05-15 2024-12-31 13F/A-1 RPC COM 749660106 1,970,384 309,035 18.60 11,704 10.77 0.0008
2025-02-14 2024-12-31 13F RPC COM 749660106 1,970,384 309,035 11,704 0.0008
2025-05-14 2024-09-30 13F/A-2 RPC COM 749660106 1,661,349 205,992 14.15 10,566 16.17 0.0008
2025-02-14 2024-09-30 13F/A-1 RPC COM 749660106 1,661,349 205,992 10,566 0.0008
2024-11-14 2024-09-30 13F RPC COM 749660106 1,661,349 205,992 10,566 0.0001
2025-05-14 2024-06-30 13F/A-2 RPC COM 749660106 1,455,357 -66,509 -4.37 9,096 -22.79 0.0007
2024-10-17 2024-06-30 13F/A-1 RPC COM 749660106 1,455,357 -66,509 9,096 0.0007
2024-08-14 2024-06-30 13F RPC COM 749660106 1,455,357 -66,509 9,096 0.0007
2024-10-17 2024-03-31 13F/A-2 RPC COM 749660106 1,521,866 192,300 14.46 11,779 21.70 0.0009
2024-08-16 2024-03-31 13F/A-1 RPC COM 749660106 1,521,866 192,300 11,779 0.0001
2024-05-15 2024-03-31 13F RPC COM 749660106 1,521,866 192,300 11,779 0.0009
2024-08-16 2023-12-31 13F/A-1 RPC COM 749660106 1,329,566 65,005 5.14 9,679 -14.38 0.0009
2024-02-13 2023-12-31 13F RPC COM 749660106 1,329,566 65,005 9,679 0.0009
2023-11-15 2023-09-30 13F RPC COM 749660106 1,264,561 -373,055 -22.78 11,305 -3.44 0.0011
2023-08-14 2023-06-30 13F RPC COM 749660106 1,637,616 58,054 3.68 11,709 -3.61 0.0012
2023-05-15 2023-03-31 13F RPC COM 749660106 1,579,562 471,352 42.53 12,147 23.30 0.0013
2023-02-14 2022-12-31 13F RPC COM 749660106 1,108,210 58,413 5.56 9,852 35.41 0.0011
2022-11-14 2022-09-30 13F RPC COM 749660106 1,049,797 -94,435 -8.25 7,275 -7.99 0.0010
2022-10-27 2022-06-30 13F/A-1 RPC COM 749660106 1,144,232 778,100 212.52 7,907 102.33 0.0010
2022-08-15 2022-06-30 13F RPC COM 749660106 1,144,232 778,100 7,907 0.0010
2022-10-27 2022-03-31 13F/A-1 RPC COM 749660106 366,132 1,460 0.40 3,908 135.99 0.0005
2022-05-13 2022-03-31 13F RPC COM 749660106 366,132 1,460 3,908 0.0005
2022-02-14 2021-12-31 13F RPC COM 749660106 364,672 90,662 33.09 1,656 24.32 0.0002
2021-11-15 2021-09-30 13F RPC COM 749660106 274,010 -586,712 -68.17 1,332 -68.73 0.0002
2021-08-23 2021-06-30 13F/A-1 RPC COM 749660106 860,722 715,605 493.12 4,260 443.37 0.0006
2021-08-16 2021-06-30 13F RPC COM 749660106 860,722 715,605 4,260 0.0001
2021-05-17 2021-03-31 13F RPC COM 749660106 145,117 -35,022 -19.44 784 38.27 0.0001
2021-02-16 2020-12-31 13F RPC COM 749660106 180,139 35,686 24.70 567 48.43 0.0001
2020-11-13 2020-09-30 13F RPC COM 749660106 144,453 -1,056,664 -87.97 382 -89.68 0.0001
2020-08-14 2020-06-30 13F RPC COM 749660106 1,201,117 -358,182 -22.97 3,700 15.19 0.0008
2020-05-26 2020-03-31 13F/A-1 RPC COM 749660106 1,559,299 353,514 29.32 3,212 -49.16 0.0009
2020-05-15 2020-03-31 13F RPC COM 749660106 1,559,299 353,514 3,212 246.7486
2020-02-14 2019-12-31 13F RPC COM 749660106 1,205,785 -1,296,416 -51.81 6,318 -54.99 0.0015
2019-11-14 2019-09-30 13F RPC COM 749660106 2,502,201 1,598,105 176.76 14,036 115.31 0.0037
2019-08-14 2019-06-30 13F RPC COM 749660106 904,096 498,480 122.89 6,519 40.86 0.0017
2019-05-15 2019-03-31 13F RPC COM 749660106 405,616 -370,406 -47.73 4,628 -39.57 0.0013
2019-02-14 2018-12-31 13F RPC COM 749660106 776,022 760,909 5,034.80 7,659 3,187.12 0.0023
2019-04-23 2018-09-30 13F/A-2 RPC COM 749660106 15,113 -1,031,358 -98.56 233 -98.47 0.0001
2018-11-20 2018-09-30 13F/A-1 RPC COM 749660106 15,113 0 233 0.0001
2018-11-14 2018-09-30 13F RPC COM 749660106 15,113 -1,031,358 233
2019-04-23 2018-06-30 13F/A-1 RPC COM 749660106 1,046,471 420,126 67.08 15,248 35.02 0.0041
2018-08-14 2018-06-30 13F RPC COM 749660106 1,046,471 420,126 15,248
2019-04-23 2018-03-31 13F/A-1 RPC COM 749660106 626,345 570,739 1,026.40 11,293 695.28 0.0031
2018-05-14 2018-03-31 13F RPC COM 749660106 626,345 570,739 11,293
2019-04-23 2017-12-31 13F/A-1 RPC COM 749660106 55,606 -38,142 -40.69 1,420 -38.90 0.0004
2018-02-14 2017-12-31 13F RPC COM 749660106 55,606 -38,142 1,420
2017-11-14 2017-09-30 13F RPC COM 749660106 93,748 -299 -0.32 2,324 22.25 0.0007
2017-08-11 2017-06-30 13F RPC COM 749660106 94,047 -151,533 -61.70 1,901 -57.72 0.0006
2017-05-22 2017-03-31 13F/A-1 RPC COM 749660106 245,580 28,163 12.95 4,496 4.36 0.0014
2017-05-12 2017-03-31 13F RPC COM 749660106 245,580 4,496
2017-02-22 2016-12-31 13F/A-1 RPC COM 749660106 217,417 165,893 321.97 4,308 398.03 0.0014
2017-02-13 2016-12-31 13F RPC COM 749660106 217,417 4,308
2016-11-10 2016-09-30 13F RPC COM 749660106 51,524 4,378 9.29 865 18.17 0.0003
2016-08-12 2016-06-30 13F RPC COM 749660106 47,146 -427,604 -90.07 732 -89.13 0.0003
2016-05-12 2016-03-31 13F RPC COM 749660106 474,750 414,006 681.56 6,732 828.55 0.0026
2016-02-09 2015-12-31 13F RPC COM 749660106 60,744 -1,222,446 -95.27 725 -93.62 0.0003
2016-02-08 2015-09-30 13F/A-1 RPC COM 749660106 1,283,190 1,065,109 488.40 11,356 276.53 0.0042
2015-11-09 2015-09-30 13F RPC COM 749660106 1,283,190 11,356
2015-08-12 2015-06-30 13F RPC COM 749660106 218,081 -535,798 -71.07 3,016 -68.77 0.0010
2015-05-14 2015-03-31 13F RPC COM 749660106 753,879 82,734 12.33 9,657 10.35 0.0036
2015-02-13 2014-12-31 13F RPC COM 749660106 671,145 -41,075 -5.77 8,751 -44.05 0.0032
2014-12-16 2014-09-30 13F/A-1 RPC COM 749660106 712,220 168,584 31.01 15,642 40.91 0.0060
2014-11-14 2014-09-30 13F RPC COM 749660106 712,220 15,642
2014-05-13 2014-03-31 13F RPC COM 749660106 543,636 -178,615 -24.73 11,101 -13.90 0.0046
2014-02-13 2013-12-31 13F RPC COM 749660106 722,251 160,811 28.64 12,893 48.47 0.0055
2013-11-13 2013-09-30 13F RPC INC COM ST COM 749660106 561,440 235,635 72.32 8,684 93.02 0.0041
2013-08-08 2013-06-30 13F RPC INC COM ST COM 749660106 325,805 325,805 4,499 0.0023
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.