Who owns RPC, Inc. (RES)
Which tracked institutional funds hold RES, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See RES company fundamentals →
Ownership as of the 2026-Q1 13F filings (latest filed 2026-05-18). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.
How the tape is positioned
The tracked-fund tape on RES is one-sided between 2025-Q4 and 2026-Q1: 59 added or opened and 19 trimmed or exited — on balance accumulating.
A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.
Conviction spread
RES’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes RES more heavily than its largest holder by dollar value does.
Book-share is each fund’s reported value in RES divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.
Institutional & insider positioning
Between 2025-Q4 and 2026-Q1, across 223 tracked filers holding RES, 115 increased or opened the position and 95 reduced or closed it; over the same quarter, there were no open-market insider Form 4s.
This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.
New buyers & exits
Funds opening or closing a position in RES between the 2025-Q4 and 2026-Q1 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence (split-invariant); adds and trims are measured on reported value.
New buyers 10
- VANGUARD PORTFOLIO MANAGEMENT LLC$46M
- VANGUARD CAPITAL MANAGEMENT LLC$30M
- SIR Capital Management, L.P.$11M
- VANGUARD FIDUCIARY TRUST CO$4M
- Fulcrum Asset Management LLP$4M
- Carrera Capital Advisors$2M
Full exits 10
- VANGUARD GROUP INC$55M
- Carolina Wealth Advisors, LLC$7M
- ARROWSTREET CAPITAL, LIMITED PARTNERSHIP$2M
- Squarepoint Ops LLC$2M
- Brandywine Global Investment Management, LLC$2M
- JANE STREET GROUP, LLC$2M
Largest adds
- DIMENSIONAL FUND ADVISORS LP$25M
- BlackRock, Inc.$25M
- TWO SIGMA INVESTMENTS, LP$13M
- VAN ECK ASSOCIATES CORP$11M
- STATE STREET CORP$8M
- AMERICAN CENTURY COMPANIES INC$8M
Largest trims
- GOLDMAN SACHS GROUP INC$5M
- RENAISSANCE TECHNOLOGIES LLC$4M
- MILLENNIUM MANAGEMENT LLC$1M
- CITADEL ADVISORS LLC$1M
- Baird Financial Group, Inc.$1M
- WELLS FARGO & COMPANY/MN$708K
Institutional holders
One row per tracked fund, largest reported value first. “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding. Rows marked stale are from an earlier filing than the security’s latest quarter — that fund is absent from the newest snapshot (position exited, or reported under a different name).
| Fund | Shares | Reported value | % of value | Quarter |
|---|---|---|---|---|
| BlackRock, Inc. added | 14,546,183 | $103M | 13.6% | 2026-Q1 |
| DIMENSIONAL FUND ADVISORS LP added | 12,543,337 | $89M | 11.8% | 2026-Q1 |
| VANGUARD PORTFOLIO MANAGEMENT LLC new | 6,510,870 | $46M | 6.1% | 2026-Q1 |
| STATE STREET CORP added | 4,250,097 | $30M | 4.0% | 2026-Q1 |
| VANGUARD CAPITAL MANAGEMENT LLC new | 4,222,745 | $30M | 4.0% | 2026-Q1 |
| AMERICAN CENTURY COMPANIES INC added | 4,161,109 | $29M | 3.9% | 2026-Q1 |
| VAN ECK ASSOCIATES CORP added | 3,461,960 | $25M | 3.2% | 2026-Q1 |
| GAMCO INVESTORS, INC. ET AL trimmed | 2,891,268 | $20M | 2.7% | 2026-Q1 |
| IES Holdings, Inc. trimmed | 2,511,895 | $18M | 2.4% | 2026-Q1 |
| TWO SIGMA INVESTMENTS, LP added | 2,501,613 | $18M | 2.3% | 2026-Q1 |
| GEODE CAPITAL MANAGEMENT, LLC added | 2,204,180 | $16M | 2.1% | 2026-Q1 |
| GABELLI FUNDS LLC trimmed | 2,174,000 | $15M | 2.0% | 2026-Q1 |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC added | 1,986,150 | $14M | 1.9% | 2026-Q1 |
| MORGAN STANLEY added | 1,953,580 | $14M | 1.8% | 2026-Q1 |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC added | 1,705,131 | $12M | 1.6% | 2026-Q1 |
| SIR Capital Management, L.P. added | 1,596,443 | $11M | 1.5% | 2026-Q1 |
| Bank of New York Mellon Corp added | 1,591,663 | $11M | 1.5% | 2026-Q1 |
| BANK OF AMERICA CORP /DE/ trimmed | 1,493,283 | $11M | 1.4% | 2026-Q1 |
| CONGRESS ASSET MANAGEMENT CO added | 1,452,153 | $10M | 1.4% | 2026-Q1 |
| Invesco Ltd. added | 1,427,743 | $10M | 1.3% | 2026-Q1 |
| HOTCHKIS & WILEY CAPITAL MANAGEMENT LLC trimmed | 1,308,648 | $9M | 1.2% | 2026-Q1 |
| Empowered Funds, LLC added | 1,119,996 | $8M | 1.0% | 2026-Q1 |
| NORTHERN TRUST CORP added | 989,414 | $7M | 0.9% | 2026-Q1 |
| UBS Group AG added | 892,946 | $6M | 0.8% | 2026-Q1 |
| Creative Planning added | 790,605 | $6M | 0.7% | 2026-Q1 |
| FIRST TRUST ADVISORS LP trimmed | 789,549 | $6M | 0.7% | 2026-Q1 |
| GOLDMAN SACHS GROUP INC trimmed | 712,834 | $5M | 0.7% | 2026-Q1 |
| CITIGROUP INC added | 643,127 | $5M | 0.6% | 2026-Q1 |
| FRANKLIN RESOURCES INC added | 616,840 | $4M | 0.6% | 2026-Q1 |
| VANGUARD FIDUCIARY TRUST CO new | 589,030 | $4M | 0.6% | 2026-Q1 |
| Fulcrum Asset Management LLP new | 552,228 | $4M | 0.5% | 2026-Q1 |
| PRINCIPAL FINANCIAL GROUP INC added | 432,086 | $3M | 0.4% | 2026-Q1 |
| CITADEL ADVISORS LLC trimmed | 390,000 | $3M | 0.4% | 2026-Q1 |
| Jump Financial, LLC added | 370,618 | $3M | 0.3% | 2026-Q1 |
| Carrera Capital Advisors new | 348,722 | $2M | 0.3% | 2026-Q1 |
| First Eagle Investment Management, LLC added | 337,149 | $2M | 0.3% | 2026-Q1 |
| Public Sector Pension Investment Board added | 318,156 | $2M | 0.3% | 2026-Q1 |
| Cresset Asset Management, LLC trimmed | 310,797 | $2M | 0.3% | 2026-Q1 |
| TRUIST FINANCIAL CORP added | 304,767 | $2M | 0.3% | 2026-Q1 |
| RHUMBLINE ADVISERS trimmed | 294,410 | $2M | 0.3% | 2026-Q1 |
| Quantbot Technologies LP added | 293,449 | $2M | 0.3% | 2026-Q1 |
| AMERIPRISE FINANCIAL INC trimmed | 288,262 | $2M | 0.3% | 2026-Q1 |
| AQR CAPITAL MANAGEMENT LLC trimmed | 282,969 | $2M | 0.3% | 2026-Q1 |
| MILLENNIUM MANAGEMENT LLC trimmed | 276,242 | $2M | 0.3% | 2026-Q1 |
| ROYCE & ASSOCIATES LP trimmed | 270,589 | $2M | 0.3% | 2026-Q1 |
| DENALI ADVISORS LLC | 251,800 | $2M | 0.2% | 2026-Q1 |
| RENAISSANCE TECHNOLOGIES LLC trimmed | 250,300 | $2M | 0.2% | 2026-Q1 |
| BALYASNY ASSET MANAGEMENT L.P. trimmed | 243,630 | $2M | 0.2% | 2026-Q1 |
| JPMORGAN CHASE & CO added | 233,872 | $2M | 0.2% | 2026-Q1 |
| Bridge City Capital, LLC trimmed | 233,907 | $2M | 0.2% | 2026-Q1 |
| Legal & General Group Plc added | 226,402 | $2M | 0.2% | 2026-Q1 |
| ENVESTNET ASSET MANAGEMENT INC trimmed | 211,358 | $1M | 0.2% | 2026-Q1 |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | 204,551 | $1M | 0.2% | 2026-Q1 |
| Nuveen, LLC trimmed | 195,638 | $1M | 0.2% | 2026-Q1 |
| CoreCommodity Management, LLC trimmed | 187,238 | $1M | 0.2% | 2026-Q1 |
| WEDGE CAPITAL MANAGEMENT L L P/NC trimmed | 185,228 | $1M | 0.2% | 2026-Q1 |
| WELLINGTON MANAGEMENT GROUP LLP added | 182,282 | $1M | 0.2% | 2026-Q1 |
| Russell Investments Group, Ltd. trimmed | 177,817 | $1M | 0.2% | 2026-Q1 |
| Swiss National Bank | 171,000 | $1M | 0.2% | 2026-Q1 |
| NEW YORK STATE COMMON RETIREMENT FUND | 170,701 | $1M | 0.2% | 2026-Q1 |
| VOYA INVESTMENT MANAGEMENT LLC trimmed | 161,873 | $1M | 0.2% | 2026-Q1 |
| VOLORIDGE INVESTMENT MANAGEMENT, LLC added | 153,860 | $1M | 0.1% | 2026-Q1 |
| Connor, Clark & Lunn Investment Management Ltd. added | 144,396 | $1M | 0.1% | 2026-Q1 |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC added | 134,768 | $954K | 0.1% | 2026-Q1 |
| Unison Advisors LLC | 126,209 | $894K | 0.1% | 2026-Q1 |
| Baird Financial Group, Inc. trimmed | 123,499 | $874K | 0.1% | 2026-Q1 |
| Quantinno Capital Management LP added | 114,088 | $808K | 0.1% | 2026-Q1 |
| HUSSMAN STRATEGIC ADVISORS, INC. | 105,000 | $743K | 0.1% | 2026-Q1 |
| Freestone Grove Partners LP new | 101,545 | $719K | 0.1% | 2026-Q1 |
| BARCLAYS PLC trimmed | 100,185 | $709K | 0.1% | 2026-Q1 |
| GSA CAPITAL PARTNERS LLP added | 91,417 | $647K | 0.1% | 2026-Q1 |
| PRUDENTIAL FINANCIAL INC trimmed | 91,023 | $644K | 0.1% | 2026-Q1 |
| O'SHAUGHNESSY ASSET MANAGEMENT, LLC added | 90,665 | $642K | 0.1% | 2026-Q1 |
| Cetera Investment Advisers trimmed | 89,518 | $634K | 0.1% | 2026-Q1 |
| FIFTH THIRD BANCORP added | 82,698 | $586K | 0.1% | 2026-Q1 |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed | 78,975 | $559K | 0.1% | 2026-Q1 |
| CANADA LIFE ASSURANCE Co | 77,660 | $550K | 0.1% | 2026-Q1 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP trimmed | 77,620 | $550K | 0.1% | 2026-Q1 |
| Campbell & CO Investment Adviser LLC added | 74,146 | $525K | 0.1% | 2026-Q1 |
| Inspire Investing, LLC trimmed | 72,307 | $512K | 0.1% | 2026-Q1 |
| EverSource Wealth Advisors, LLC added | 6,026 | $503K | 0.1% | 2026-Q1 |
| SEI INVESTMENTS CO added | 70,966 | $502K | 0.1% | 2026-Q1 |
| VANGUARD GROUP INC trimmed | 10,152,346 | $55M | 7.3% | 2025-Q4 stale |
| Carolina Wealth Advisors, LLC trimmed | 1,252,201 | $7M | 0.9% | 2025-Q4 stale |
| Quantedge Capital Pte Ltd added | 798,595 | $4M | 0.6% | 2025-Q1 stale |
| Pacer Advisors, Inc. trimmed | 836,993 | $4M | 0.5% | 2025-Q3 stale |
| OBERWEIS ASSET MANAGEMENT INC/ added | 629,169 | $3M | 0.5% | 2025-Q1 stale |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added | 361,472 | $2M | 0.3% | 2025-Q4 stale |
| Squarepoint Ops LLC added | 356,624 | $2M | 0.3% | 2025-Q4 stale |
| Brandywine Global Investment Management, LLC trimmed | 329,724 | $2M | 0.2% | 2025-Q4 stale |
| JANE STREET GROUP, LLC added | 318,532 | $2M | 0.2% | 2025-Q4 stale |
| ExodusPoint Capital Management, LP added | 292,458 | $2M | 0.2% | 2025-Q4 stale |
| JACOBS LEVY EQUITY MANAGEMENT, INC trimmed | 323,603 | $2M | 0.2% | 2025-Q3 stale |
| HRT FINANCIAL LP added | 268,313 | $1M | 0.2% | 2025-Q4 stale |
| TWO SIGMA ADVISERS, LP added | 161,342 | $878K | 0.1% | 2025-Q4 stale |
| SummerHaven Investment Management, LLC added | 137,442 | $650K | 0.1% | 2025-Q2 stale |
| Vident Advisory, LLC added | 110,546 | $601K | 0.1% | 2025-Q4 stale |
| AVIVA PLC added | 109,256 | $601K | 0.1% | 2025-Q1 stale |
| DANSKE BANK A/S trimmed | 109,237 | $520K | 0.1% | 2025-Q3 stale |
| LSV ASSET MANAGEMENT new | 107,200 | $507K | 0.1% | 2025-Q2 stale |
Ownership over time
Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.
Reading this table
Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.
About 13F filings
A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.