Archrock, Inc.
US ˙ NYSE ˙ US03957W1062

SecurityAROC / Archrock, Inc.
InstitutionCitigroup Inc
Latest Disclosed Ownership33,023 shares
Latest Disclosed Value $ 1,149,200
Citigroup Inc reports 40.51% decrease in ownership of AROC / Archrock, Inc.

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 33,023 shares of Archrock, Inc. (US:AROC) valued at $1,149,200 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 55,511 shares of Archrock, Inc.. This represents a change in shares of -40.51% during the quarter. The current value of the position is $1,129,717 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)
2026-05-11 2026-03-31 13F ARCHROCK COM 03957W106 33,023 -22,488 -40.51 1,149 -20.43 0.0002
2026-02-13 2025-12-31 13F ARCHROCK COM 03957W106 55,511 -117,927 -67.99 1,444 -68.35 0.0006
2025-11-10 2025-09-30 13F ARCHROCK COM 03957W106 173,438 -9,824 -5.36 4,563 0.29 0.0020
2025-08-11 2025-06-30 13F ARCHROCK COM 03957W106 183,262 -81,004 -30.65 4,550 -34.38 0.0022
2025-05-12 2025-03-31 13F ARCHROCK COM 03957W106 264,266 -21,572 -7.55 6,934 -2.53 0.0035
2025-02-12 2024-12-31 13F ARCHROCK COM 03957W106 285,838 -161,322 -36.08 7,115 -21.39 0.0042
2024-11-12 2024-09-30 13F ARCHROCK COM 03957W106 447,160 166,947 59.58 9,051 59.75 0.0052
2024-08-12 2024-06-30 13F ARCHROCK COM 03957W106 280,213 140,722 100.88 5,666 106.53 0.0036
2024-05-10 2024-03-31 13F ARCHROCK COM 03957W106 139,491 36,380 35.28 2,744 72.84 0.0018
2024-02-09 2023-12-31 13F ARCHROCK COM 03957W106 103,111 22,918 28.58 1,588 57.13 0.0011
2023-12-06 2023-09-30 13F/A-1 ARCHROCK COM 03957W106 80,193 -62,812 -43.92 1,010 -31.06 0.0008
2023-11-09 2023-09-30 13F ARCHROCK COM 03957W106 80,193 -62,812 1,010 0.0003
2023-08-10 2023-06-30 13F ARCHROCK COM 03957W106 143,005 64,703 82.63 1,466 91.50 0.0010
2023-05-11 2023-03-31 13F ARCHROCK COM 03957W106 78,302 -16,446 -17.36 765 -10.00 0.0005
2023-02-09 2022-12-31 13F ARCHROCK COM 03957W106 94,748 17,455 22.58 851 71.37 0.0007
2022-11-10 2022-09-30 13F ARCHROCK COM 03957W106 77,293 3,641 4.94 496 -18.56 0.0004
2022-08-10 2022-06-30 13F ARCHROCK COM 03957W106 73,652 -55,804 -43.11 609 -48.99 0.0005
2022-05-12 2022-03-31 13F ARCHROCK COM 03957W106 129,456 8,210 6.77 1,194 31.79 0.0007
2022-02-10 2021-12-31 13F ARCHROCK COM 03957W106 121,246 31,856 35.64 906 22.93 0.0005
2021-11-10 2021-09-30 13F ARCHROCK COM 03957W106 89,390 -31,059 -25.79 737 -31.31 0.0004
2021-08-10 2021-06-30 13F ARCHROCK COM 03957W106 120,449 57,804 92.27 1,073 80.64 0.0006
2021-05-13 2021-03-31 13F ARCHROCK COM 03957W106 62,645 8,962 16.69 594 27.74 0.0004
2021-02-11 2020-12-31 13F ARCHROCK COM 03957W106 53,683 -3,984 -6.91 465 50.00 0.0003
2020-11-12 2020-09-30 13F ARCHROCK COM 03957W106 57,667 -14,049 -19.59 310 -33.48 0.0002
2020-08-12 2020-06-30 13F ARCHROCK COM 03957W106 71,716 -48,786 -40.49 466 2.64 0.0004
2020-05-12 2020-03-31 13F ARCHROCK COM 03957W106 120,502 4,599 3.97 454 -61.00 0.0004
2020-02-12 2019-12-31 13F ARCHROCK COM 03957W106 115,903 -31,911 -21.59 1,164 -20.98 0.0008
2019-11-08 2019-09-30 13F ARCHROCK COM 03957W106 147,814 14,075 10.52 1,473 3.95 0.0012
2019-08-12 2019-06-30 13F ARCHROCK COM 03957W106 133,739 118,593 783.00 1,417 857.43 0.0011
2019-05-13 2019-03-31 13F ARCHROCK COM 03957W106 15,146 -109 -0.71 148 29.82 0.0001
2019-02-12 2018-12-31 13F ARCHROCK COM 03957W106 15,255 7,603 99.36 114 22.58 0.0001
2018-11-13 2018-09-30 13F ARCHROCK COM 03957W106 7,652 7,037 1,144.23 93 1,228.57 0.0001
2018-08-10 2018-06-30 13F ARCHROCK COM 03957W106 615 -309 -33.44 7 -12.50 0.0000
2018-05-11 2018-03-31 13F ARCHROCK COM 03957W106 924 -61,416 -98.52 8 -98.78 0.0000
2018-02-12 2017-12-31 13F ARCHROCK COM 03957W106 62,340 -55,625 -47.15 655 -55.74 0.0005
2017-11-13 2017-09-30 13F ARCHROCK COM 03957W106 117,965 -34,539 -22.65 1,480 -14.89 0.0012
2017-08-11 2017-06-30 13F ARCHROCK COM 03957W106 152,504 78,880 107.14 1,739 90.47 0.0016
2017-05-12 2017-03-31 13F ARCHROCK COM 03957W106 73,624 -120,628 -62.10 913 -64.39 0.0008
2017-02-10 2016-12-31 13F ARCHROCK COM 03957W106 194,252 121,532 167.12 2,564 169.61 0.0023
2016-11-10 2016-09-30 13F ARCHROCK COM 03957W106 72,720 34,370 89.62 951 163.43 0.0009
2016-08-12 2016-06-30 13F ARCHROCK COM 03957W106 38,350 -28,013 -42.21 361 -31.89 0.0004
2016-05-13 2016-03-31 13F ARCHROCK COM 03957W106 66,363 33,274 100.56 530 112.85 0.0006
2016-02-12 2015-12-31 13F ARCHROCK COM 03957W106 33,089 33,089 249 0.0002
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.