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CIK 0001708035 · Large accelerated filer

Ecovyst Inc.

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Ticker
ECVT
Exchange
NYSE
Industry
Chemicals & Allied Products
FY end
Dec 31
Incorporated
DE
Entity type
operating
EIN
813406833
Phone
484-617-1200
Business address
600 LEE ROAD, SUITE 200, WAYNE, PA, 19087
Former names
PQ Group Holdings Inc.
  1. 3 Insider Initial Statement of Ownership
  2. 4 Open-market sale 10% owner sold 1,224,602 shares at $13.44 ($16,458,651)
  3. 4 Open-market sale 10% owner sold 650,398 shares at $13.44 ($8,741,349)
  4. 4 Open-market sale 10% owner sold 1,224,602 shares at $13.44 ($16,458,651)
  5. 4 Open-market sale 10% owner sold 8,164,010 shares at $13.44 ($109,724,294)
  6. 4 Open-market sale 10% owner sold 8,164,010 shares at $13.44 ($109,724,294)
  7. 4 Open-market sale 10% owner sold 4,335,990 shares at $13.44 ($58,275,706)
  8. 4 Open-market buy Director bought 10,000 shares at $14.01 ($140,050)
  9. 4 Open-market buy Director bought 35,460 shares at $14.04 ($497,979)
  10. 3 Insider Initial Statement of Ownership
  11. 4 Insider Changes in Ownership
  12. 4 Shares withheld for taxes See Remarks gave up 2,489 shares (to pay taxes)
  13. 4 Shares withheld for taxes See Remarks gave up 4,582 shares (to pay taxes)
  14. 4 Shares withheld for taxes See Remarks gave up 4,710 shares (to pay taxes)
  15. 4 Shares withheld for taxes See Remarks gave up 10,465 shares (to pay taxes)
  16. 4 Shares withheld for taxes See Remarks gave up 1,851 shares (to pay taxes)
  17. 4 Grant or award See Remarks acquired 95,842 shares (grant or award)
  18. 4 Grant or award Director acquired 12,995 shares (grant or award)
  19. 4 Grant or award Director acquired 12,995 shares (grant or award)
  20. 4 Grant or award Director acquired 12,995 shares (grant or award)

Page 9 of 16 · 309 filings