Mariner
TSE

Mariner’s Trinseo TSE Stock Holding History

Mariner’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
2026
Q1 		– Sell
-39,200
Closed -$19.5K – 3839
2025
Q4 		$19.5K Hold
39,200
– – ﹤0.01% 3486
2025
Q3 		$92.1K Buy
+39,200
New +$102K ﹤0.01% 3376
2024
Q3 		– Sell
-10,735
Closed -$24.8K – 3391
2024
Q2 		$24.8K Sell
10,735
-19,596
-65% -$61K ﹤0.01% 3097
2024
Q1 		$115K Sell
30,331
-83,232
-73% -$444K ﹤0.01% 2904
2023
Q4 		$951K Buy
+113,563
New +$760K ﹤0.01% 1466

Other funds holding TSE

KBFS
Kohmann Bosshard Financial Services Fairlawn, Ohio $1.18B AUM 16.34% 1-Year Est. Return
N
Nuveen Charlotte, North Carolina $369B AUM 31.66% 1-Year Est. Return
EWA
EverSource Wealth Advisors Birmingham, Alabama $3.28B AUM 23.66% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
GI
GAMMA Investing Foster City, California $2.69B AUM 42.78% 1-Year Est. Return
RhumbLine Advisers
RhumbLine Advisers Boston, Massachusetts $117B AUM 29.66% 1-Year Est. Return
ME
McIlrath & Eck Arlington, Washington $1.35B AUM 15.78% 1-Year Est. Return
SC
Swan Capital Pensacola, Florida $272M AUM 14.84% 1-Year Est. Return
Rockefeller Capital Management
Rockefeller Capital Management New York $56.4B AUM 24.96% 1-Year Est. Return
EP
Essential Partners Rancho Santa Fe, California $297M AUM 40.85% 1-Year Est. Return

Mariner's TSE Position: Q1 2026 in Review

Mariner sold out of Trinseo (TSE) in Q1 2026, closing a stake of 39,200 shares — an estimated $19.5K sold.

Mariner first reported a position in TSE in Q4 2023 and held it in 5 quarters. The position peaked at $951K in Q4 2023. 14 funds tracked by Wall St. Rank hold TSE as of Q1 2026.

  • Mariner reported no remaining Trinseo position as of Q1 2026 after selling out during the quarter.
  • Mariner sold 39,200 Trinseo shares in Q1 2026, an estimated $19.5K.
  • Mariner first reported a position in Trinseo in Q4 2023 and held it in 5 quarters.
  • Mariner's Trinseo position peaked at $951K in Q4 2023.
  • 14 funds tracked by Wall St. Rank held Trinseo as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.