Renaissance Technologies Llc reports 52.52% increase in ownership of AROC / Archrock, Inc.

아크록, Inc.

US ˙ NYSE ˙ US03957W1062

Security	AROC / Archrock, Inc.
Institution	Renaissance Technologies Llc
Manager	James Simons
Latest Disclosed Ownership	591,534 shares
Latest Disclosed Value	$ 20,585,383

On May 14, 2026 - Renaissance Technologies Llc filed a 13F-HR form disclosing ownership of 591,534 shares of Archrock, Inc. (US:AROC) valued at $20,585,383 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 387,828 shares of Archrock, Inc.. This represents a change in shares of 52.52% during the quarter. The current value of the position is $20,230,463 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	Reported Shares	ΔShares	ΔShares (%)	Reported Value (x1000)	ΔValue (%)	Alloc (%)
2026-05-14	2026-03-31	13F	ARCHROCK	COM	03957W106	591,534	203,706	52.52	20,585	103.99	0.0322
2026-02-12	2025-12-31	13F	ARCHROCK	COM	03957W106	387,828	53,200	15.90	10,091	14.62	0.0157
2025-11-13	2025-09-30	13F	ARCHROCK	COM	03957W106	334,628	229,228	217.48	8,804	236.42	0.0116
2025-08-13	2025-06-30	13F	ARCHROCK	COM	03957W106	105,400	-240,428	-69.52	2,617	-71.16	0.0035
2025-05-14	2025-03-31	13F	ARCHROCK	COM	03957W106	345,828	-117,872	-25.42	9,075	-21.38	0.0137
2025-02-13	2024-12-31	13F	ARCHROCK	COM	03957W106	463,700	17,900	4.02	11,541	27.92	0.0171
2024-11-13	2024-09-30	13F	ARCHROCK	COM	03957W106	445,800	8,472	1.94	9,023	2.04	0.0136
2024-08-09	2024-06-30	13F	ARCHROCK	COM	03957W106	437,328	-6,300	-1.42	8,843	110,425.00	0.0150
2024-05-13	2024-03-31	13F	ARCHROCK	COM	03957W106	443,628	38,100	9.40	9	33.33	0.0137
2024-02-13	2023-12-31	13F	ARCHROCK	COM	03957W106	405,528	-123,700	-23.37	6	0.00	0.0097
2023-11-14	2023-09-30	13F	ARCHROCK	COM	03957W106	529,228	198,323	59.93	7	100.00	0.0114
2023-08-11	2023-06-30	13F	ARCHROCK	COM	03957W106	330,905	-353,823	-51.67	3	-50.00	0.0049
2023-05-12	2023-03-31	13F	ARCHROCK	COM	03957W106	684,728	277,628	68.20	7	100.00	0.0089
2023-02-13	2022-12-31	13F	ARCHROCK	COM	03957W106	407,100	-205,228	-33.52	4	-99.92	0.0050
2022-11-14	2022-09-30	13F	ARCHROCK	COM	03957W106	612,328	-215,000	-25.99	3,931	-42.55	0.0056
2022-08-12	2022-06-30	13F	ARCHROCK	COM	03957W106	827,328	319,700	62.98	6,842	46.04	0.0081
2022-05-13	2022-03-31	13F	ARCHROCK	COM	03957W106	507,628	240,673	90.15	4,685	134.60	0.0055
2022-02-11	2021-12-31	13F	ARCHROCK	COM	03957W106	266,955	33,191	14.20	1,997	3.53	0.0025
2021-11-12	2021-09-30	13F	ARCHROCK	COM	03957W106	233,764	-412,227	-63.81	1,929	-66.49	0.0025
2021-08-13	2021-06-30	13F	ARCHROCK	COM	03957W106	645,991	-438,337	-40.42	5,756	-44.06	0.0072
2021-05-13	2021-03-31	13F	ARCHROCK	COM	03957W106	1,084,328	783,000	259.85	10,290	294.25	0.0128
2021-02-10	2020-12-31	13F	ARCHROCK	COM	03957W106	301,328	-149,681	-33.19	2,610	7.58	0.0028
2020-11-13	2020-09-30	13F	ARCHROCK	COM	03957W106	451,009	-41,119	-8.36	2,426	-24.05	0.0024
2020-08-13	2020-06-30	13F	ARCHROCK	COM	03957W106	492,128	492,128	9.12	3,194	31.66	0.0028
2020-05-14	2020-03-31	13F	ARCHROCK	COM	03957W106	0	-12,100	-100.00	0	-100.00
2020-02-13	2019-12-31	13F	ARCHROCK	COM	03957W106	12,100	-168,800	-93.31	121	-93.29	0.0001
2019-11-13	2019-09-30	13F	ARCHROCK	COM	03957W106	180,900	-81,600	-31.09	1,804	-35.18	0.0015
2019-08-12	2019-06-30	13F	ARCHROCK	COM	03957W106	262,500	186,500	245.39	2,783	274.56	0.0025
2019-05-14	2019-03-31	13F	ARCHROCK	COM	03957W106	76,000	-606,128	-88.86	743	-85.46	0.0007
2019-02-12	2018-12-31	13F	ARCHROCK	COM	03957W106	682,128	323,800	90.36	5,109	16.86	0.0056
2018-11-13	2018-09-30	13F	ARCHROCK	COM	03957W106	358,328	-6,415	-1.76	4,372	-0.11	0.0045
2018-08-13	2018-06-30	13F/A-1	ARCHROCK	COM	03957W106	364,743	364,743		4,377		0.0048
2016-11-14	2016-09-30	13F	ARCHROCK	COM	03957W106	0	-342,642	-100.00	0	-100.00
2016-08-12	2016-06-30	13F	ARCHROCK	COM	03957W106	342,642	15,452	4.72	3,228	23.30	0.0061
2016-05-13	2016-03-31	13F	ARCHROCK	COM	03957W106	327,190	327,190	-4.51	2,618	-18.90	0.0050
2016-02-11	2015-12-31	13F	ARCHROCK	COM	03957W106	0	0		0		0.0000

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.