Joseph S. Koscinski

ECVT

SEE REMARKS · ECOVYST INC. · CIK 0001717992

FILING MIX · LIFETIME72%/28%

BUYS

SELLS

TOTAL VALUE

$1.12M

COMPANIES

ACTIVE SINCE

Jan 2022

HOLDINGS NOW

595,784

AVG SELL PX

$10.29

Trades · vs SPY

Loading price series…

Performance · forward returns vs SPY

3 backtested trades · 8 horizons · 1 pending

Forward-return performance of every backtestable P/S trade by Joseph S. Koscinski, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.

HORIZON	TRADES	WIN RATE	INSIDER RETURN	SPY RETURN	MEAN EXCESS	MEDIAN EXCESS	T-STAT
7d	3	+100.00%	+5.38%	+1.25%	+4.13%	+4.88%	—
14d	3	+100.00%	+9.72%	+4.93%	+4.79%	+2.50%	—
30d	3	+100.00%	+3.84%	+0.18%	+3.66%	+2.07%	—
60d	3	+33.33%	+1.43%	-0.56%	+1.99%	+0.61%	—
90d	3	+66.67%	+8.27%	+2.96%	+5.31%	+10.45%	—
180d	3	+100.00%	+14.27%	+4.75%	+9.52%	+5.91%	—
1y	3	+100.00%	+18.77%	+12.95%	+5.82%	+3.72%	—
2y	3(1 pending)	+50.00%	-11.44%	+34.78%	-46.22%	-46.22%	—

How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.

Holdings over time

ECVT · 595,784 shares · as of Mar 4, 2026

Trading cadence · quarterly flow

BUY ● SELL ●

2022

2023

2024

2025

2026

FLOW · 13 buys / 5 sellsCOVERAGE · 17 quarters

Form 4 filings · all activity

COMPANY	TYPE	SHARES	PRICE	VALUE	HELD AFTER	TRADE DATE	FILED	DETAILS
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	11,052	$11.31	$125.0K	595,784	Mar 4, 2026	Mar 6, 2026 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	27,158	—	—	584,732	Feb 3, 2026	Feb 5, 2026 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	35,944	—	—	557,574	Feb 3, 2025	Feb 5, 2025 ↗	View →
ECVT ECOVYST INC.	SALE See Remarks	5,522	$7.96	$44.0K	521,630	Jan 22, 2025	Jan 23, 2025 ↗	View →
ECVT ECOVYST INC.	SALE See Remarks	17,457	$7.76	$135.4K	527,152	Jan 5, 2025	Jan 7, 2025 ↗	View →
ECVT ECOVYST INC.	PURCHASE See Remarks	4,807	$6.26	$30.1K	544,609	Aug 5, 2024	Aug 6, 2024 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	45,403	—	—	539,802	Jan 22, 2024	Jan 24, 2024 ↗	View →
ECVT ECOVYST INC.	SALE See Remarks	52,830	$11.37	$600.7K	494,399	Jul 1, 2023	Jul 5, 2023 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	12,306	—	—	547,229	Mar 8, 2023	Mar 9, 2023 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	60,976	—	—	534,923	Jan 16, 2023	Jan 18, 2023 ↗	View →
ECVT ECOVYST INC.	PURCHASE See Remarks	19,861	$1.88	$37.3K	473,947	Nov 16, 2022	Nov 18, 2022 ↗	View →
ECVT ECOVYST INC.	SALE See Remarks	9,931	—	—	0	Nov 16, 2022	Nov 18, 2022 ↗	View →
ECVT ECOVYST INC.	SALE See Remarks	4,965	—	—	0	Nov 16, 2022	Nov 18, 2022 ↗	View →
ECVT ECOVYST INC.	PURCHASE See Remarks	11,400	$8.79	$100.3K	454,086	Aug 4, 2022	Aug 8, 2022 ↗	View →
ECVT ECOVYST INC.	PURCHASE See Remarks	5,200	$9.62	$50.0K	442,686	May 12, 2022	May 13, 2022 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	24,335	—	—	437,486	Mar 1, 2022	Mar 3, 2022 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	72,887	—	—	291,674	Jan 17, 2022	Jan 19, 2022 ↗	View →
ECVT ECOVYST INC.	PURCHASEGRANT Stock grant	121,477	—	—	413,151	Jan 17, 2022	Jan 19, 2022 ↗	View →

Other insiders · ECVT

Loading peer insiders…

About this filer

CIK 0001717992

ROLE

See Remarks

PRIMARY

ECVT

COMPANIES

ACTIVE SINCE

Jan 2022

MARKETPEEL · /INSIDER/0001717992DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE

Joseph S. Koscinski

The morning brief, before the bell.