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Insider Ownership Percentage: 4.50%

Insider Buying (Last 12 Months): $251,313.82

Insider Selling (Last 12 Months): $0.00

Trinseo Insider Trading History Chart

Trinseo Share Price & Price History

^$0.70

▼ -0.0638 (-8.41%)

As of 12/4/2025 04:59 PM ET

Days: 30 | 90 | 365

Trinseo Insider Trading History

Transaction Date	Insider Name	Title	Buy/Sell	Number of Shares	Average Share Price	Total Transaction	Shares Held After Transaction
8/14/2025	Matthew Farrell	Director	Buy	48,609	$2.43	$118,119.87	250,225
8/13/2025	Matthew Farrell	Director	Buy	26,391	$2.45	$64,657.95	201,616
8/12/2025	Matthew Farrell	Director	Buy	25,000	$2.29	$57,250.00	175,225
3/14/2025	Johanna Frisch	VP	Buy	1,500	$4.10	$6,150.00	18,092
3/12/2025	Johanna Frisch	VP	Buy	1,200	$4.28	$5,136.00	15,492
8/19/2024	Jeffrey J Cote	Director	Buy	50,600	$3.39	$171,534.00	150,600
8/16/2024	Jeffrey J Cote	Director	Buy	100,000	$2.81	$281,000.00	100,000
8/12/2024	Angelo N Chaclas	SVP	Buy	75,000	$2.57	$192,750.00	207,007
8/12/2024	Frank A. Bozich	CEO	Buy	40,000	$2.57	$102,800.00	462,204
9/14/2023	David Phillip Stasse	CFO	Buy	15,000	$8.89	$133,350.00	105,552
9/13/2023	Jeanmarie F Desmond	Director	Buy	2,500	$7.94	$19,850.00	19,128
9/12/2023	Angelo N Chaclas	SVP	Buy	20,000	$8.07	$161,400.00	88,508
9/12/2023	Frank A. Bozich	CEO	Buy	8,000	$8.07	$64,560.00	192,653

SEC Filings (Institutional Ownership Changes) for Trinseo (NYSE:TSE)

82.69% of Trinseo stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

Trinseo Institutional Trading History

Reporting Date	Hedge Fund	Shares Held	Market Value	% of Portfolio	Quarterly Change in Shares	Ownership in Company
11/17/2025	Icon Advisers Inc. Co.	1,000,000	$2.35M	0.5%	+33.3%	2.841%
11/17/2025	Voleon Capital Management LP	82,074	$0.19M	0.0%	N/A	0.233%
11/17/2025	Susquehanna International Group LLP	11,703	$28K	0.0%	-85.5%	0.033%
11/17/2025	Bank of America Corp DE	363,641	$0.86M	0.0%	+20.0%	1.033%
11/14/2025	Two Sigma Investments LP	35,714	$84K	0.0%	-73.6%	0.101%
11/13/2025	BNP Paribas Financial Markets	23,454	$55K	0.0%	-43.6%	0.067%
11/13/2025	Brightline Capital Management LLC	1,060,000	$2.49M	1.0%	+3.7%	3.011%
11/13/2025	Russell Investments Group Ltd.	13,276	$31K	0.0%	+2,181.1%	0.038%
11/12/2025	Icon Advisers Inc. Co.	1,000,000	$2.35M	0.5%	+33.3%	2.841%
11/7/2025	Vanguard Group Inc.	755,643	$1.78M	0.0%	-29.8%	2.102%
11/7/2025	JPMorgan Chase & Co.	26,323	$62K	0.0%	-92.8%	0.073%
10/31/2025	PFG Investments LLC	23,004	$54K	0.0%	+64.3%	0.064%
8/15/2025	Sugar Maple Asset Management LLC	13,000	$41K	0.0%	N/A	0.036%
8/15/2025	Owl Creek Asset Management L.P.	1,669,952	$5.21M	0.2%	+337.0%	4.645%
8/15/2025	Engineers Gate Manager LP	72,806	$0.23M	0.0%	+625.5%	0.203%
8/15/2025	BNP Paribas Financial Markets	41,586	$0.13M	0.0%	+80.2%	0.116%
8/15/2025	Bank of America Corp DE	302,965	$0.95M	0.0%	-2.7%	0.843%
8/14/2025	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	18,600	$58K	0.0%	N/A	0.052%
8/13/2025	Marshall Wace LLP	190,397	$0.59M	0.0%	-77.9%	0.530%
8/13/2025	Invesco Ltd.	195,259	$0.61M	0.0%	-23.6%	0.543%
8/13/2025	Icon Advisers Inc. Co.	750,000	$2.34M	0.5%	N/A	2.086%
8/13/2025	New York State Common Retirement Fund	29,500	$92K	0.0%	N/A	0.082%
8/12/2025	JPMorgan Chase & Co.	364,444	$1.14M	0.0%	-6.5%	1.014%
8/8/2025	Intech Investment Management LLC	15,514	$48K	0.0%	N/A	0.044%
8/8/2025	Police & Firemen s Retirement System of New Jersey	8,769	$27K	0.0%	N/A	0.025%
8/8/2025	Geode Capital Management LLC	823,044	$2.57M	0.0%	+105.8%	2.309%
8/7/2025	Los Angeles Capital Management LLC	34,760	$0.11M	0.0%	N/A	0.098%
8/1/2025	May Hill Capital LLC	10,594	$33K	0.0%	N/A	0.030%
6/27/2025	Goldman Sachs Group Inc.	343,604	$1.26M	0.0%	+43.0%	0.964%
5/21/2025	Acadian Asset Management LLC	329,306	$1.21M	0.0%	+267.9%	0.924%
5/19/2025	Jane Street Group LLC	267,745	$0.99M	0.0%	-19.0%	0.751%
5/16/2025	Goldman Sachs Group Inc.	343,604	$1.26M	0.0%	+43.0%	0.964%
5/16/2025	Dynamic Technology Lab Private Ltd	32,107	$0.12M	0.0%	N/A	0.090%
5/15/2025	Cubist Systematic Strategies LLC	50,656	$0.19M	0.0%	-15.1%	0.142%
5/15/2025	OMERS ADMINISTRATION Corp	72,200	$0.27M	0.0%	+11.6%	0.203%
5/14/2025	Jump Financial LLC	45,802	$0.17M	0.0%	-15.7%	0.128%
5/14/2025	Brightline Capital Management LLC	1,016,000	$3.74M	3.2%	+7.5%	2.850%
5/12/2025	Kohmann Bosshard Financial Services LLC	44,605	$0.16M	0.0%	+28.9%	0.125%
5/12/2025	Alta Fundamental Advisers LLC	53,618	$0.20M	0.1%	-86.3%	0.150%
5/12/2025	Invesco Ltd.	255,668	$0.94M	0.0%	-18.7%	0.717%
5/9/2025	Charles Schwab Investment Management Inc.	362,646	$1.34M	0.0%	-31.2%	1.017%
3/17/2025	NorthCrest Asset Manangement LLC	11,800	$60K	0.0%	-35.5%	0.033%
2/27/2025	Jefferies Financial Group Inc.	30,000	$0.15M	0.0%	+14.5%	0.085%
2/18/2025	PharVision Advisers LLC	58,413	$0.30M	0.3%	N/A	0.165%
2/17/2025	Squarepoint Ops LLC	10,918	$56K	0.0%	-72.6%	0.031%
2/17/2025	Two Sigma Advisers LP	204,400	$1.04M	0.0%	-9.1%	0.577%
2/17/2025	Two Sigma Investments LP	326,592	$1.67M	0.0%	+2.7%	0.923%
2/17/2025	State of Wyoming	10,373	$53K	0.0%	N/A	0.029%
2/17/2025	Point72 Asia Singapore Pte. Ltd.	36,965	$0.19M	0.0%	+33.5%	0.104%
2/17/2025	Man Group plc	18,778	$96K	0.0%	N/A	0.053%
2/17/2025	OMERS ADMINISTRATION Corp	64,700	$0.33M	0.0%	N/A	0.183%
2/17/2025	Millennium Management LLC	178,244	$0.91M	0.0%	-61.0%	0.504%
2/17/2025	Jefferies Financial Group Inc.	30,000	$0.15M	0.0%	+14.5%	0.085%
2/17/2025	D. E. Shaw & Co. Inc.	581,795	$2.97M	0.0%	-32.6%	1.643%
2/17/2025	Cubist Systematic Strategies LLC	59,639	$0.30M	0.0%	-33.4%	0.168%
2/17/2025	CastleKnight Management LP	2,479,618	$12.65M	0.4%	+128.1%	7.005%
2/17/2025	Cetera Investment Advisers	15,991	$82K	0.0%	N/A	0.045%
2/17/2025	Bank of America Corp DE	335,947	$1.71M	0.0%	+3.9%	0.949%
2/17/2025	BNP Paribas Financial Markets	14,493	$74K	0.0%	N/A	0.041%
2/17/2025	Alta Fundamental Advisers LLC	390,500	$1.99M	0.6%	-0.7%	1.103%
2/17/2025	683 Capital Management LLC	124,763	$0.64M	0.0%	N/A	0.352%
2/14/2025	Jane Street Group LLC	330,467	$1.69M	0.0%	+32.4%	0.934%
2/14/2025	Schonfeld Strategic Advisors LLC	49,645	$0.25M	0.0%	N/A	0.140%
2/14/2025	Tudor Investment Corp ET AL	16,688	$85K	0.0%	-11.2%	0.047%
2/14/2025	Quarry LP	15,571	$79K	0.0%	N/A	0.044%
2/14/2025	Boothbay Fund Management LLC	19,464	$99K	0.0%	N/A	0.055%
2/14/2025	Susquehanna Fundamental Investments LLC	15,742	$80K	0.0%	N/A	0.044%
2/14/2025	Two Sigma Securities LLC	11,871	$61K	0.0%	-15.7%	0.034%
2/14/2025	Dimensional Fund Advisors LP	41,224	$0.21M	0.0%	N/A	0.116%
2/13/2025	Marshall Wace LLP	618,192	$3.15M	0.0%	+1.7%	1.746%
2/13/2025	Jump Financial LLC	54,324	$0.28M	0.0%	N/A	0.153%
2/13/2025	XTX Topco Ltd	52,710	$0.27M	0.0%	-40.3%	0.149%
2/13/2025	Barclays PLC	48,352	$0.25M	0.0%	+48.5%	0.137%
2/13/2025	Brightline Capital Management LLC	945,000	$4.82M	3.8%	N/A	2.669%
2/13/2025	Covestor Ltd	7,144	$36K	0.0%	N/A	0.020%
2/13/2025	Renaissance Technologies LLC	229,300	$1.17M	0.0%	+18.1%	0.648%
2/13/2025	Invesco Ltd.	314,658	$1.61M	0.0%	+0.9%	0.889%
2/12/2025	Geode Capital Management LLC	388,751	$1.98M	0.0%	+0.7%	1.098%
2/12/2025	JPMorgan Chase & Co.	229,503	$1.17M	0.0%	-46.7%	0.648%
2/11/2025	LPL Financial LLC	19,936	$0.10M	0.0%	N/A	0.056%
2/11/2025	Truffle Hound Capital LLC	350,000	$1.79M	0.6%	N/A	0.989%
2/11/2025	Virtu Financial LLC	32,587	$0.17M	0.0%	N/A	0.092%
2/10/2025	Thrivent Financial for Lutherans	116,248	$0.59M	0.0%	-28.8%	0.328%
2/6/2025	Charles Schwab Investment Management Inc.	526,924	$2.69M	0.0%	-48.6%	1.488%
1/30/2025	Rhumbline Advisers	7,879	$40K	0.0%	+103.2%	0.022%
1/17/2025	SG Americas Securities LLC	10,097	$51K	0.0%	N/A	0.029%
12/26/2024	JPMorgan Chase & Co.	430,340	$2.20M	0.0%	+10.4%	1.216%
11/19/2024	Barclays PLC	32,566	$0.17M	0.0%	-81.5%	0.092%
11/16/2024	Geode Capital Management LLC	385,931	$1.97M	0.0%	+4.0%	1.090%
11/15/2024	Barclays PLC	32,566	$0.17M	0.0%	-81.5%	0.092%
11/15/2024	Public Employees Retirement System of Ohio	12,202	$62K	0.0%	-66.8%	0.034%
11/15/2024	XTX Topco Ltd	88,262	$0.45M	0.0%	+19.1%	0.249%
11/15/2024	Jane Street Group LLC	249,524	$1.28M	0.0%	-29.2%	0.705%
11/15/2024	Whitebox Advisors LLC	39,146	$0.20M	0.0%	N/A	0.111%
11/15/2024	State Street Corp	157,877	$0.81M	0.0%	-7.3%	0.446%
11/15/2024	Point72 Asia Singapore Pte. Ltd.	27,690	$0.14M	0.0%	-64.6%	0.078%
11/14/2024	Walleye Capital LLC	34,528	$0.18M	0.0%	-76.9%	0.098%
11/13/2024	FMR LLC	110,896	$0.57M	0.0%	+21.3%	0.313%
11/12/2024	Charles Schwab Investment Management Inc.	1,025,477	$5.24M	0.0%	-39.3%	2.900%
10/24/2024	PFG Investments LLC	10,250	$52K	0.0%	N/A	0.029%

Data available starting January 2016

Trinseo PLC operates as a specialty material solutions provider in the United States, Europe, the Asia-Pacific, and internationally. It operates through five segments: Engineered Materials, Latex Binders, Plastics Solutions, Polystyrene, and Americas Styrenics. The Engineered Materials segment offers rigid thermoplastic compounds and blends, soft thermoplastic, continuous cast, cell cast, activated methyl methacrylates (MMA), PMMA resins, and extruded PMMA sheets and resins for consumer electronics, medical, footwear, automotive, and building and construction applications under the EMERGE, CALIBRE, PLEXIGLAS, ALTUGLAS, ACRYSPA, AVONITE, STUDIO, MEGOL, APILON, APIGO, and APINAT brands. The Latex Binders segment provides styrene-butadiene latex, and other latex polymers and binders primarily for coated paper and packaging board, carpet, and artificial turf backings, as well as the adhesive, building and construction, and technical textile paper market. The Plastics Solutions segment offers acrylonitrile-butadiene-styrene, styrene-acrylonitrile, polycarbonate, and compounds and blends for automotive and other applications under the MAGNUM brand. The Polystyrene segment provides general purpose polystyrenes and high impact polystyrene for use in appliances, food packaging and food service disposables, consumer electronics, and building and construction materials under the STYRON brand. The Americas Styrenics segment provides styrene and polystyrene for appliances, food packaging, food service disposables, consumer electronics, and building and construction materials applications. Trinseo PLC was incorporated in 2015 and is headquartered in Wayne, Pennsylvania.

Today's Range

Now: $0.70

$0.69

$0.80

50 Day Range

MA: $1.49

$0.70

$2.49

52 Week Range

Now: $0.70

$0.69

$6.85

Volume

932,118 shs

Average Volume

462,899 shs

Market Capitalization

$24.46 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.48

Who are the company insiders with the largest holdings of Trinseo?: Trinseo's top insider investors include:
Frank A Bozich (CEO)
Matthew Farrell (Director)
Angelo N Chaclas (SVP)
Jeffrey J Cote (Director)
Johanna Frisch (VP)
Learn More about top insider investors at Trinseo.
Who are the major institutional investors of Trinseo?: Trinseo's top institutional shareholders include:
Brightline Capital Management LLC — 3.01%
Icon Advisers Inc. Co. — 2.84%
Icon Advisers Inc. Co. — 2.84%
Vanguard Group Inc. — 2.10%
Bank of America Corp DE — 1.03%
Voleon Capital Management LP — 0.23%
Learn More about top institutional investors of Trinseo stock.
Which institutional investors are selling Trinseo stock?: During the previous quarter, TSE stock was sold by these institutional investors:
JPMorgan Chase & Co.
Vanguard Group Inc.
Two Sigma Investments LP
Susquehanna International Group LLP
BNP Paribas Financial Markets
Which institutional investors are buying Trinseo stock?: During the last quarter, TSE stock was bought by institutional investors including:
Icon Advisers Inc. Co.
Icon Advisers Inc. Co.
Voleon Capital Management LP
Bank of America Corp DE
Brightline Capital Management LLC
Russell Investments Group Ltd.
PFG Investments LLC
Group One Trading LLC
In the previous year, these company insiders have bought Trinseo stock:
Frank A Bozich (CEO)
Matthew Farrell (Director)
Angelo N Chaclas (SVP)
Jeffrey J Cote (Director)
Johanna Frisch (VP)
Learn More investors buying Trinseo stock.