Prudential Financial Inc ownership in ECVT / Ecovyst Inc.

에코비스트(주)

US ˙ NYSE ˙ US27923Q1094

Security	ECVT / Ecovyst Inc.
Institution	Prudential Financial Inc
Latest Disclosed Ownership	20,615 shares
Latest Disclosed Value	$ 265,109

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 20,615 shares of Ecovyst Inc. (US:ECVT) valued at $265,109 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 0 shares of Ecovyst Inc.. The current value of the position is $266,552 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 (%)
2026-05-13	2026-03-31	13F	ECOVYST	COM	27923Q109	20,615	20,615		265		0.0002
2026-02-13	2025-12-31	13F	ECOVYST	COM	27923Q109	0	-131,700	-100.00	0	-100.00
2025-11-13	2025-09-30	13F	ECOVYST	COM	27923Q109	131,700	-293,350	-69.02	1,154	-67.04	0.0014
2025-08-12	2025-06-30	13F	ECOVYST	COM	27923Q109	425,050	-276,580	-39.42	3,498	-19.59	0.0045
2025-05-13	2025-03-31	13F	ECOVYST	COM	27923Q109	701,630	-74,160	-9.56	4,350	-26.61	0.0062
2025-02-11	2024-12-31	13F	ECOVYST	COM	27923Q109	775,790	131,400	20.39	5,927	34.28	0.0081
2024-11-14	2024-09-30	13F	ECOVYST	COM	27923Q109	644,390	92,000	16.65	4,414	-10.90	0.0062
2024-08-13	2024-06-30	13F	ECOVYST	COM	27923Q109	552,390	111,680	25.34	4,955	0.83	0.0074
2024-05-14	2024-03-31	13F	ECOVYST	COM	27923Q109	440,710	358,200	434.13	4,914	509.55	0.0069
2024-02-13	2023-12-31	13F	ECOVYST	COM	27923Q109	82,510	-413,850	-83.38	806	-83.50	0.0012
2023-11-13	2023-09-30	13F	ECOVYST	COM	27923Q109	496,360	-332,375	-40.11	4,884	-48.57	0.0077
2023-08-11	2023-06-30	13F	ECOVYST	COM	27923Q109	828,735	118,100	16.62	9,497	20.95	0.0138
2023-05-12	2023-03-31	13F	ECOVYST	COM	27923Q109	710,635	259,075	57.37	7,853	96.30	0.0123
2023-02-14	2022-12-31	13F	ECOVYST	COM	27923Q109	451,560	24,535	5.75	4,001	10.99	0.0067
2022-11-04	2022-09-30	13F	ECOVYST	COM	27923Q109	427,025	19,800	4.86	3,604	-10.15	0.0061
2022-08-15	2022-06-30	13F	ECOVYST	COM	27923Q109	407,225	-45,900	-10.13	4,011	-23.42	0.0064
2022-05-13	2022-03-31	13F	ECOVYST	COM	27923Q109	453,125	150,910	49.93	5,238	69.24	0.0070
2022-02-14	2021-12-31	13F	ECOVYST	COM	27923Q109	302,215	183,909	155.45	3,095	124.44	0.0038
2021-11-15	2021-09-30	13F	ECOVYST	COM	27923Q109	118,306	38,797	48.80	1,379	12.94	0.0019
2021-08-16	2021-06-30	13F	PQ GROUP HLDGS	COM	73943T103	79,509	23,736	42.56	1,221	31.15	0.0017
2021-05-12	2021-03-31	13F	PQ GROUP HLDGS	COM	73943T103	55,773	1,787	3.31	931	21.07	0.0014
2021-08-16	2020-12-31	13F/A-1	PQ GROUP HLDGS	COM 0014	73943T103	53,986	2,350	4.55	769	45.09	0.0013
2021-02-16	2020-12-31	13F	PQ GROUP HLDGS	COM	73943T103	53,986	2,350		770		0.0013
2020-11-16	2020-09-30	13F	PQ GROUP HLDGS	COM	73943T103	51,636	-32,942	-38.95	530	-52.68	0.0010
2020-08-12	2020-06-30	13F	PQ GROUP HLDGS	COM	73943T103	84,578	-11,226	-11.72	1,120	7.28	0.0022
2020-05-12	2020-03-31	13F	PQ GROUP HLDGS	COM	73943T103	95,804	-660	-0.68	1,044	-37.03	0.0023
2020-02-11	2019-12-31	13F	PQ GROUP HLDGS	COM	73943T103	96,464	-75	-0.08	1,658	7.73	0.0025
2019-11-13	2019-09-30	13F	PQ GROUP HLDGS	COM	73943T103	96,539	38,917	67.54	1,539	68.57	0.0024
2019-08-08	2019-06-30	13F	PQ GROUP HLDGS	COM	73943T103	57,622	57,622		913		0.0014
2018-11-07	2018-09-30	13F	PQ GROUP HLDGS	COM	73943T103	0	-30,250	-100.00	0	-100.00
2018-08-13	2018-06-30	13F	PQ GROUP HLDGS	COM	73943T103	30,250	30,250		545		0.0008

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.