QUODD

Insider Transactions last 24 months for Ecovyst Inc. - NYSE: ECVT

Transactions
All	Buy	Sell	Option Exercise

Filer's Name	Relationship/ Title	Trans. Date	Trans. Type	Ownership Type	Security Type	Shares	Price	Trans. Value	Total Shares Owned
Catalano Anna C	Director	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	83,406
Fogarty Kevin Michael	Director	02/03/2025	AA	Direct	COM	51,348	$0.00	$0.00	177,200
Koscinski Joseph S.	See Remarks	02/03/2025	AA	Direct	COM	35,944	$0.00	$0.00	557,574
Feehan Michael	See Remarks	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	373,931
Brown Bryan K.	Director	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	89,616
Althoff Donald L.	Director	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	38,977
Lorance Sarah	Director	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	43,751
Whittleston Paul	See Remarks	02/03/2025	AA	Direct	COM	23,107	$0.00	$0.00	72,847
Ward Susan F	Director	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	93,261
Bitting Kurt	See Remarks	02/03/2025	AA	Direct	COM	154,044	$0.00	$0.00	602,001
Vann George L. Jr.	See Remarks	02/03/2025	AA	Direct	COM	20,540	$0.00	$0.00	69,679
Bradley David A.	Director	02/03/2025	AA	Direct	COM	25,674	$0.00	$0.00	88,600
Whittleston Paul	See Remarks	01/22/2025	DF	Direct	COM	2,982	$7.96	$23,736.72	49,740
Koscinski Joseph S.	See Remarks	01/22/2025	DF	Direct	COM	5,522	$7.96	$43,955.12	521,630
Feehan Michael	See Remarks	01/22/2025	DF	Direct	COM	2,382	$7.96	$18,960.72	348,257
Bitting Kurt	See Remarks	01/22/2025	DF	Direct	COM	14,315	$7.96	$113,947.40	447,957
Vann George L. Jr.	See Remarks	01/22/2025	DF	Direct	COM	1,482	$7.96	$11,796.72	49,139
Whittleston Paul	See Remarks	08/07/2024	AP	Direct	COM	7,800	$6.51	$50,739.00	57,542
Bitting Kurt	See Remarks	08/05/2024	AP	Direct	COM	5,000	$6.27	$31,349.50	489,332
Feehan Michael	See Remarks	08/05/2024	AP	Direct	COM	16,000	$6.28	$100,542.40	364,799
Koscinski Joseph S.	See Remarks	08/05/2024	AP	Direct	COM	4,807	$6.26	$30,090.38	544,609
Althoff Donald L.	Director	05/20/2024	AA	Direct	COM	13,303	$0.00	$0.00	13,303
Ward Susan F	Director	03/22/2024	DS	Direct	COM	24,436	$10.28	$251,307.15	67,587
Lorance Sarah	Director	03/08/2024	AA	Direct	COM	18,077	$0.00	$0.00	18,077
Catalano Anna C	Director	01/22/2024	AA	Direct	COM	22,701	$0.00	$0.00	57,732

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Transaction Type Key First letter: A = Acquired, D = Disposed Second letter: A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security \| D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) \| E = Expiration of short derivative position \| F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. \| G = Gift \| H = Expiration (or cancellation) of long derivative position with value received \| I = Discretionary transaction in accordance with Rule 16b-3(f) \| J = Other \| L = Small acquisition under Rule 16a-6 \| M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 \| O = Exercise of out-of-the-money derivative security \| P = Open market or private purchase \| S = Open market or private sale \| U = Disposition pursuant to a tender of shares in a change of control transaction \| W = Acquisition or disposition by will or the laws of descent and distribution \| X = Exercise of in-the-money or at-the-money derivative security \| Z = Deposit into or withdrawal from voting trust		Send to Excel

Transaction Type Key
First letter: A = Acquired, D = Disposed
Second letter:
A = Grant, award or other acquisition pursuant to Rule 16b-3(d) C = Conversion of derivative security | D = Disposition to the issuer of issuer equity securities pursuant to Rule 16b-3(e) | E = Expiration of short derivative position | F = Payment of exercise price or tax liability by delivering or withholding securities incident to the receipt, exercise or vesting of a security issued in accordance with Rule 16b-3. | G = Gift | H = Expiration (or cancellation) of long derivative position with value received | I = Discretionary transaction in accordance with Rule 16b-3(f) | J = Other | L = Small acquisition under Rule 16a-6 | M = Exercise or conversion of derivative security exempted pursuant to Rule 16b-3 | O = Exercise of out-of-the-money derivative security | P = Open market or private purchase | S = Open market or private sale | U = Disposition pursuant to a tender of shares in a change of control transaction | W = Acquisition or disposition by will or the laws of descent and distribution | X = Exercise of in-the-money or at-the-money derivative security | Z = Deposit into or withdrawal from voting trust

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