ARCHROCK INC AROC
COM · Common Stock · CUSIP 03957W106 · ISIN US03957W1062
- SectorUtilities
- IndustryNatural Gas Transmission
- HeadquartersHouston, TX
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($29.2m this quarter). Holder counts are more reliable. Shares outstanding: 175.3m as of 2026-07-29, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $40.70. Options: 9 managers hold calls ($17.6m notional), 6 hold puts ($1.7m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2022 | 202 |
| Q4 2022 | 202 |
| Q1 2023 | 211 |
| Q2 2023 | 203 |
| Q3 2023 | 236 |
| Q4 2023 | 243 |
| Q1 2024 | 275 |
| Q2 2024 | 304 |
| Q3 2024 | 303 |
| Q4 2024 | 337 |
| Q1 2025 | 379 |
| Q2 2025 | 374 |
| Q3 2025 | 369 |
| Q4 2025 | 374 |
| Q1 2026 | 432 |
| Q2 2026 | 451 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 181 | 132 |
| Q4 2024 | 191 | 122 |
| Q1 2025 | 199 | 154 |
| Q2 2025 | 195 | 181 |
| Q3 2025 | 174 | 194 |
| Q4 2025 | 195 | 169 |
| Q1 2026 | 227 | 180 |
| Q2 2026 | 250 | 191 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $4.6m | $1.9m | 0.40 |
| Q4 2025 | $4.7m | $1.0m | 0.22 |
| Q1 2026 | $4.4m | $1.3m | 0.29 |
| Q2 2026 | $17.6m | $1.7m | 0.09 |
Biggest buyers
| CONGRESS ASSET MANAGEMENT CO | New | +2.2m |
| BlackRock, Inc. | Added | +1.8m |
| NEUBERGER BERMAN GROUP LLC | Added | +1.3m |
| PRICE T ROWE ASSOCIATES INC /MD/ | Added | +1.1m |
| T. Rowe Price Investment Management, Inc. | New | +1.1m |
| TWO SIGMA INVESTMENTS, LP | Added | +1.1m |
| Progeny 3, Inc. | New | +1.0m |
| GW&K Investment Management, LLC | New | +844.4k |
| GEODE CAPITAL MANAGEMENT, LLC | Added | +784.4k |
| Connor, Clark & Lunn Investment Management Ltd. | Added | +588.7k |
Biggest sellers
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. | Reduced | -1.5m |
| D. E. Shaw & Co., Inc. | Reduced | -876.7k |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Sold out | -830.1k |
| Invesco Ltd. | Reduced | -811.4k |
| CITADEL ADVISORS LLC | Reduced | -756.9k |
| TUDOR INVESTMENT CORP ET AL | Sold out | -730.1k |
| MARSHALL WACE, LLP | Sold out | -670.2k |
| DIMENSIONAL FUND ADVISORS LP | Reduced | -598.1k |
| FMR LLC | Reduced | -544.8k |
| GOLDMAN SACHS GROUP INC | Reduced | -507.4k |
Biggest calls
| PEAK6 LLC | New | $8.1m200.0k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $4.7m115.4k shares |
| JANE STREET GROUP, LLC | New | $1.8m43.6k shares |
| IMC-Chicago, LLC | Added | $863.1k21.2k shares |
| Walleye Capital LLC | Added | $704.3k17.3k shares |
| D. E. Shaw & Co., Inc. | New | $635.1k15.6k shares |
| CITADEL ADVISORS LLC | Added | $537.4k13.2k shares |
| SIMPLEX TRADING, LLC | Reduced | $158.8k3.9k shares |
| GROUP ONE TRADING LLC | New | $44.8k1.1k shares |
Biggest puts
| Walleye Capital LLC | Reduced | $525.2k12.9k shares |
| CITADEL ADVISORS LLC | Added | $472.2k11.6k shares |
| JANE STREET GROUP, LLC | Added | $390.8k9.6k shares |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | New | $244.3k6.0k shares |
| SIMPLEX TRADING, LLC | Reduced | $28.5k700 shares |
| GROUP ONE TRADING LLC | New | $4.1k100 shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
| BlackRock, Inc. 13G · institution -1.7 pts · filed 2025-04-25 | 14.8% |
| VANGUARD PORTFOLIO MANAGEMENT LLC 13G · institution new · filed 2026-04-28 | 6.3% |
| EARNEST PARTNERS LLC 13G · institution filed 2026-02-12 | 5.7% |
| VANGUARD CAPITAL MANAGEMENT LLC 13G · institution new · filed 2026-04-29 | 5.0% |
Fell to 5% or below in the last year: VANGUARD GROUP INC (0.0%, 2026-03-26; now reported by VANGUARD PORTFOLIO MANAGEMENT LLC)
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
Officers and directors buying vs selling
Number of people, by quarter (10% owners not included)
Numbers
| Quarter | Buying | Bought | Selling | Sold | Sold under a plan |
|---|---|---|---|---|---|
| Q4 2024 | 0 | — | 0 | — | — |
| Q1 2025 | 0 | — | 1 | $219.3k | — |
| Q2 2025 | 0 | — | 1 | $1.0m | — |
| Q3 2025 | 1 | $603.0k | 1 | $235.4k | — |
| Q4 2025 | 0 | — | 1 | $1.0m | — |
| Q1 2026 | 0 | — | 2 | $6.3m | — |
| Q2 2026 | 0 | — | 2 | $5.9m | — |
| Q3 2026 | 0 | — | 0 | — | — |
| Date | Insider | Trade | Value |
|---|---|---|---|
| 2026-05-18 | Aron Doug S SR VICE PRESIDENT, CFO | Sold | $1.3m35.0k shares |
| 2026-05-18 | Ingersoll Jason SENIOR VICE PRESIDENT | Sold | $1.3m33.0k shares |
| 2026-05-14 | Aron Doug S SR VICE PRESIDENT, CFO | Sold | $3.3m90.0k shares |
Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| BlackRock, Inc. 0.02% of their portfolio | 29.9m $1.2bn | Added +1.8m |
| VANGUARD PORTFOLIO MANAGEMENT LLC 0.02% of their portfolio | 11.1m $451.1m | Added +143.7k |
| EARNEST PARTNERS LLC 1.40% of their portfolio | 9.5m $388.4m | Reduced -224.8k |
| VANGUARD CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 7.6m $309.7m | Added +109.6k |
| STATE STREET CORP 0.01% of their portfolio | 7.5m $306.3m | Added +288.6k |
| Invesco Ltd. 0.02% of their portfolio | 7.2m $293.2m | Reduced -811.4k |
| BANK OF AMERICA CORP /DE/ 0.02% of their portfolio | 6.4m $262.1m | Reduced -241.4k |
| AMERICAN CENTURY COMPANIES INC 0.11% of their portfolio | 6.1m $250.0m | Added +217.7k |
| GEODE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 4.9m $201.3m | Added +784.4k |
| DIMENSIONAL FUND ADVISORS LP 0.04% of their portfolio | 4.9m $200.6m | Reduced -598.1k |
| SEI INVESTMENTS CO 0.16% of their portfolio | 4.6m $186.5m | Added +148.2k |
| NEUBERGER BERMAN GROUP LLC 0.10% of their portfolio | 3.7m $152.3m | Added +1.3m |
| FMR LLC 0.01% of their portfolio | 3.6m $146.7m | Reduced -544.8k |
| GOLDMAN SACHS GROUP INC 0.01% of their portfolio | 2.7m $109.6m | Reduced -507.4k |
| TWO SIGMA INVESTMENTS, LP 0.08% of their portfolio | 2.7m $109.2m | Added +1.1m |
| PRICE T ROWE ASSOCIATES INC /MD/ 0.01% of their portfolio | 2.5m $102.6m | Added +1.1m |
| CONGRESS ASSET MANAGEMENT CO 0.55% of their portfolio | 2.2m $90.1m | New |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC 0.01% of their portfolio | 2.2m $87.7m | Reduced -14.2k |
| MORGAN STANLEY 0.00% of their portfolio | 2.2m $87.6m | Reduced -33.8k |
| FRANKLIN RESOURCES INC 0.02% of their portfolio | 2.1m $87.3m | Added +91.4k |
| Bank of New York Mellon Corp 0.01% of their portfolio | 2.1m $84.5m | Added +9.3k |
| NORTHERN TRUST CORP 0.01% of their portfolio | 2.0m $83.0m | Added +125.1k |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.09% of their portfolio | 1.8m $75.2m | Reduced -66.2k |
| NATIXIS ADVISORS, LLC 0.08% of their portfolio | 1.7m $69.9m | Reduced -78.3k |
| RAYMOND JAMES FINANCIAL INC 0.02% of their portfolio | 1.7m $68.7m | Added +453.7k |
| Energy Income Partners, LLC 0.92% of their portfolio | 1.4m $58.5m | Added +43.3k |
| JONES FINANCIAL COMPANIES LLLP 0.02% of their portfolio | 1.4m $57.4m | Added +97.1k |
| Stephens Investment Management Group LLC 0.58% of their portfolio | 1.3m $54.2m | Added +72.4k |
| Connor, Clark & Lunn Investment Management Ltd. 0.10% of their portfolio | 1.3m $51.6m | Added +588.7k |
| VANGUARD FIDUCIARY TRUST CO 0.01% of their portfolio | 1.2m $50.8m | Added +36.1k |
| Clearbridge Investments, LLC 0.04% of their portfolio | 1.2m $49.2m | Reduced -54.6k |
| WELLS FARGO & COMPANY/MN 0.01% of their portfolio | 1.2m $48.4m | Added +167.4k |
| Boston Partners 0.04% of their portfolio | 1.2m $47.1m | Added +40.1k |
| T. Rowe Price Investment Management, Inc. 0.03% of their portfolio | 1.1m $44.7m | New |
| Progeny 3, Inc. 2.19% of their portfolio | 1.0m $42.4m | New |
| VAUGHAN NELSON INVESTMENT MANAGEMENT, L.P. 0.37% of their portfolio | 1.0m $41.3m | Reduced -1.5m |
| KAYNE ANDERSON CAPITAL ADVISORS LP 0.77% of their portfolio | 964.9k $39.3m | Reduced -31.6k |
| PRINCIPAL FINANCIAL GROUP INC 0.02% of their portfolio | 856.7k $34.9m | Reduced -666 |
| AMERIPRISE FINANCIAL INC 0.01% of their portfolio | 852.2k $34.7m | Added +392.1k |
| GW&K Investment Management, LLC 0.27% of their portfolio | 844.4k $34.4m | New |
| PANAGORA ASSET MANAGEMENT INC 0.10% of their portfolio | 832.3k $33.9m | Added +28.7k |
| Nuveen, LLC 0.01% of their portfolio | 672.0k $27.4m | Reduced -294.1k |
| MILLENNIUM MANAGEMENT LLC 0.02% of their portfolio | 657.3k $26.8m | Added +505.7k |
| ENVESTNET ASSET MANAGEMENT INC 0.01% of their portfolio | 638.8k $26.0m | Added +56.5k |
| Public Sector Pension Investment Board 0.06% of their portfolio | 602.2k $24.5m | Reduced -25.2k |
| Focus Partners Wealth 0.02% of their portfolio | 588.3k $23.9m | Added +9.7k |
| FEDERATED HERMES, INC. 0.03% of their portfolio | 557.7k $22.7m | Added +13.2k |
| CITADEL ADVISORS LLC 0.01% of their portfolio | 532.7k $21.7m | Reduced -756.9k |
| AQR CAPITAL MANAGEMENT LLC 0.01% of their portfolio | 520.0k $21.2m | Added +22.8k |
| VICTORY CAPITAL MANAGEMENT INC 0.01% of their portfolio | 514.5k $20.9m | Added +16.5k |
| UBS Group AG 0.00% of their portfolio | 495.7k $20.2m | Reduced -33.2k |
| FIDEURAM - INTESA SANPAOLO PRIVATE BANKING S.P.A. 0.61% of their portfolio | 495.6k $20.2m | Added +341.9k |
| RENAISSANCE TECHNOLOGIES LLC 0.03% of their portfolio | 491.9k $20.0m | Reduced -99.6k |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 490.1k $20.1m | Added +74.1k |
| EXCHANGE TRADED CONCEPTS, LLC 0.10% of their portfolio | 486.4k $19.8m | Added +62.4k |
| Legal & General Group Plc 0.00% of their portfolio | 442.0k $18.0m | Added +11.8k |
| RHUMBLINE ADVISERS 0.01% of their portfolio | 429.2k $17.5m | Reduced -56.5k |
| AXIOM INVESTORS LLC /DE 0.15% of their portfolio | 412.1k $16.8m | Added +117.0k |
| BESSEMER GROUP INC 0.02% of their portfolio | 377.7k $15.4m | Added +365.2k |
| CITIGROUP INC 0.01% of their portfolio | 370.7k $15.1m | Added +337.7k |
| ROYCE & ASSOCIATES LP 0.12% of their portfolio | 368.8k $15.0m | Added +59.9k |
| South Street Advisors LLC 1.88% of their portfolio | 354.3k $14.4m | Reduced -19.5k |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.00% of their portfolio | 350.8k $14.3m | Reduced -48.6k |
| Swiss National Bank 0.01% of their portfolio | 334.0k $13.6m | Added +4.7k |
| LOOMIS SAYLES & CO L P 0.02% of their portfolio | 325.8k $13.3m | New |
| FIRST TRUST ADVISORS LP 0.01% of their portfolio | 309.3k $12.6m | Added +16.6k |
| Waverly Advisors, LLC 0.06% of their portfolio | 254.7k $10.4m | Reduced -6.5k |
| Allianz Asset Management GmbH 0.01% of their portfolio | 251.8k $8.8m | Added +396 |
| SG Americas Securities, LLC 0.01% of their portfolio | 247.3k $10.1m | Added +193.4k |
| STATE OF WISCONSIN INVESTMENT BOARD 0.02% of their portfolio | 235.9k $9.6m | Reduced -17.2k |
| ALGERT GLOBAL LLC 0.11% of their portfolio | 225.0k $9.2m | Added +103.9k |
| ALLIANCEBERNSTEIN L.P. 0.00% of their portfolio | 217.8k $7.6m | Added +17.8k |
| D. E. Shaw & Co., Inc. 0.01% of their portfolio | 213.9k $8.7m | Reduced -876.7k |
| HRT FINANCIAL LP 0.02% of their portfolio | 200.5k $8.2m | Reduced -3.1k |
| CROWN ADVISORS MANAGEMENT, INC. 4.47% of their portfolio | 200.0k $8.1m | Unchanged |
| KING LUTHER CAPITAL MANAGEMENT CORP 0.03% of their portfolio | 198.8k $8.1m | Unchanged |
| Edgestream Partners, L.P. 0.23% of their portfolio | 193.5k $7.9m | Added +93.1k |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 193.1k $7.9m | Reduced -9.6k |
| VAN ECK ASSOCIATES CORP 0.00% of their portfolio | 192.8k $7.9m | Added +112.0k |
| DEUTSCHE BANK AG\ 0.00% of their portfolio | 191.4k $7.8m | Added +1.4k |
| Sanctuary Advisors, LLC 0.04% of their portfolio | 190.0k $7.7m | Added +131.7k |
| Select Equity Group, L.P. 0.04% of their portfolio | 184.3k $7.5m | New |
| NORGES BANK 0.00% of their portfolio | 182.4k $7.4m | Not comparable |
| PRUDENTIAL FINANCIAL INC 0.01% of their portfolio | 181.0k $7.4m | Added +2.1k |
| BARD ASSOCIATES INC 1.63% of their portfolio | 180.1k $7.3m | Reduced -2.3k |
| VIKING FUND MANAGEMENT LLC 0.66% of their portfolio | 180.0k $7.3m | Reduced -40.0k |
| Federation des caisses Desjardins du Quebec 0.02% of their portfolio | 177.4k $7.2m | Reduced -6.2k |
| Bernzott Capital Advisors 2.87% of their portfolio | 176.3k $7.2m | Reduced -73.2k |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 171.0k $7.0m | Added +12.3k |
| OSAIC HOLDINGS, INC. 0.01% of their portfolio | 167.3k $6.8m | Added +161.9k |
| NEW YORK STATE TEACHERS RETIREMENT SYSTEM 0.01% of their portfolio | 158.4k $6.4m | Added +15.9k |
| STIFEL FINANCIAL CORP 0.01% of their portfolio | 156.4k $6.4m | Added +74.5k |
| Brookfield Corp /ON/ 0.01% of their portfolio | 156.1k $6.4m | New |
| CAXTON ASSOCIATES LLP 0.11% of their portfolio | 147.9k $6.0m | Added +76.8k |
| Bridgewater Associates, LP 0.02% of their portfolio | 145.3k $5.9m | New |
| CANADA LIFE ASSURANCE Co 0.01% of their portfolio | 144.9k $5.9m | Reduced -4.1k |
| Thrivent Financial for Lutherans 0.01% of their portfolio | 140.5k $5.7m | Added +355 |
| Moody Aldrich Partners LLC 1.02% of their portfolio | 139.9k $5.7m | Reduced -6.5k |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 0.01% of their portfolio | 139.1k $5.7m | Added +45.2k |
| VANGUARD ASSET MANAGEMENT, Ltd 0.00% of their portfolio | 135.6k $5.5m | Added +5.6k |