BCM
TSE

Brightline Capital Management’s Trinseo TSE Stock Holding History

Brightline Capital Management’s Portfolio TSE Stock Details TSE Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-1,060,000
Closed -$2.49M – 11
2025
Q3 		$2.49M Buy
1,060,000
+38,000
+4% +$98.8K 1.02% 10
2025
Q2 		$3.19M Buy
1,022,000
+6,000
+0.6% +$19.8K 1.37% 13
2025
Q1 		$3.74M Buy
1,016,000
+71,000
+8% +$323K 3.24% 10
2024
Q4 		$4.82M Buy
+945,000
New +$4.66M 3.31% 9

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Charles Schwab
Charles Schwab San Francisco, California $654B AUM 26.35% 1-Year Est. Return
OCAM
Owl Creek Asset Management New York $1.38B AUM 59.67% 1-Year Est. Return
IA
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Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.61T AUM 30.72% 1-Year Est. Return
Vanguard Group
Vanguard Group Malvern, Pennsylvania $6.9T AUM 27.45% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Morgan Stanley
Morgan Stanley New York $1.66T AUM 25.57% 1-Year Est. Return

Brightline Capital Management's TSE Position: Q4 2025 in Review

Brightline Capital Management sold out of Trinseo (TSE) in Q4 2025, closing a stake of 1,060,000 shares — an estimated $2.49M sold.

Brightline Capital Management first reported a position in TSE in Q4 2024 and held it in 4 quarters. The position peaked at $4.82M in Q4 2024. 72 funds tracked by Wall St. Rank hold TSE as of Q4 2025.

  • Brightline Capital Management reported no remaining Trinseo position as of Q4 2025 after selling out during the quarter.
  • Brightline Capital Management sold 1,060,000 Trinseo shares in Q4 2025, an estimated $2.49M.
  • Brightline Capital Management first reported a position in Trinseo in Q4 2024 and held it in 4 quarters.
  • Brightline Capital Management's Trinseo position peaked at $4.82M in Q4 2024.
  • 72 funds tracked by Wall St. Rank held Trinseo as of Q4 2025.

Based on Brightline Capital Management's 13F filing for Q4 2025, filed 13 Feb 2026.