TRINSEO PLC

Ticker: TSE CUSIP: G9059U107 Class: Foreign Stock

GSA CAPITAL PARTNERS LLP's Holding History (CIK: 0001362033)

Note: Option positions (PUT/CALL) are excluded.

Q4 2025

Shares 511,342 Value ($000) $0 Avg Close $1.19 Range $0.45 - $2.41

Q2 2025

Shares 12,450 Value ($000) $0 Avg Close $3.28 Range $2.33 - $4.41

Q1 2025

Shares 105,072 Value ($000) $0 Avg Close $4.52 Range $3.49 - $5.95

Q4 2024

Shares 25,683 Value ($000) $0 Avg Close $4.89 Range $3.12 - $6.98

Q1 2023

Shares 15,942 Value ($000) $0 Avg Close $23.79 Range $18.35 - $29.70

Q4 2022

Shares 17,000 Value ($000) $0 Avg Close $21.14 Range $16.83 - $27.03

Q4 2021

Shares 6,224 Value ($000) $327 Avg Close $50.07 Range $42.66 - $56.98

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2025	511,342	$0	$1.19	$0.45 - $2.41
Q2 2025	12,450	$0	$3.28	$2.33 - $4.41
Q1 2025	105,072	$0	$4.52	$3.49 - $5.95
Q4 2024	25,683	$0	$4.89	$3.12 - $6.98
Q1 2023	15,942	$0	$23.79	$18.35 - $29.70
Q4 2022	17,000	$0	$21.14	$16.83 - $27.03
Q4 2021	6,224	$327	$50.07	$42.66 - $56.98