United States Chemicals

Trinseo SA (TSE)

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Trinseo SA has recorded no insider trading activity within the last 90 days. The most recent transactions occurred in August 2025, when insider Matthew Farrell executed a series of share purchases. Prior to that, activity included various buy transactions by company insiders throughout 2024 and early 2025.
Ticker: TSE Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Insider trades have triggered activity signals for Trinseo SA. Upgrade to see score, net flow, insiders and the full signal context.

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Top insiders
Trades
Buy 14 Aug 2025
Value US$4,257,523.10 | Price 191.89 | Shares 13,187 (-29.4%)
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2025-08-14 2025-08-14 B Purchase
2.8
FARRELL MATTHEW
Non-Executive Director
13,187 -29.4%
191.89
US$4,257,523 		13,187 -29.4% 191.89 US$4,257,523
2025-08-14 2025-08-13 B Purchase
2.8
FARRELL MATTHEW
Non-Executive Director
15,506 +4.7%
354.97
US$803,420 		15,506 +4.7% 354.97 US$803,420
2025-08-14 2025-08-12 B Purchase
2.8
FARRELL MATTHEW
Non-Executive Director
68,601 +13.9%
366.10
US$1,314,852 		68,601 +13.9% 366.10 US$1,314,852
2025-03-14 2025-03-14 B Purchase
0.9
Frisch Johanna

VP AND TREASURER

Officer
1,500 +9.0%
4.10
US$6,150 		1,500 +9.0% 4.10 US$6,150
2025-03-14 2025-03-13 B Purchase
0.9
Frisch Johanna

VP AND TREASURER

Officer
1,100 +7.1%
4.02
US$4,422 		1,100 +7.1% 4.02 US$4,422
2025-03-14 2025-03-12 B Purchase
0.9
Frisch Johanna

VP AND TREASURER

Officer
1,200 +8.4%
4.28
US$5,136 		1,200 +8.4% 4.28 US$5,136
2024-08-20 2024-08-19 B Purchase
3.4
COTE JEFFREY J
Non-Executive Director
50,600 +50.6%
3.39
US$171,534 		50,600 +50.6% 3.39 US$171,534
2024-08-20 2024-08-16 B Purchase
3.4
COTE JEFFREY J
Non-Executive Director
100,000 +inf%
2.81
US$281,000 		100,000 +inf% 2.81 US$281,000
2024-08-14 2024-08-13 S Sale
0.5
TOMKINS MARK E
Non-Executive Director
11,142 -19.3%
2.54
US$28,301 		11,142 -19.3% 2.54 US$28,301
2024-08-13 2024-08-13 PrS Proposed sale
0.5
Mark Tomkins

Affiliate
11,142
2.48
US$27,632 		11,142 2.48 US$27,632
2024-08-14 2024-08-12 B Purchase
3.4
Chaclas Angelo N.

SVP, CLO, CCO & CORP. SEC.

Officer
75,000 +56.8%
2.57
US$192,750 		75,000 +56.8% 2.57 US$192,750
2024-08-14 2024-08-12 B Purchase
3.9
BOZICH FRANK A

CEO AND PRESIDENT

Executive Director
40,000 +9.5%
2.57
US$102,800 		40,000 +9.5% 2.57 US$102,800
2023-12-18 2023-12-14 B Purchase
2.8
FARRELL MATTHEW
Non-Executive Director
50,000 +169.4%
7.21
US$360,500 		50,000 +169.4% 7.21 US$360,500
2023-09-18 2023-09-14 B Purchase
3.2
Stasse David Phillip

EVP AND CFO

Officer
15,000 +16.6%
8.89
US$133,350 		15,000 +16.6% 8.89 US$133,350
2023-09-13 2023-09-13 B Purchase
2.7
Desmond Jeanmarie F.
Non-Executive Director
2,500 +15.0%
7.94
US$19,850 		2,500 +15.0% 7.94 US$19,850
2023-09-13 2023-09-12 B Purchase
3.9
BOZICH FRANK A

CEO AND PRESIDENT

Executive Director
8,000 +4.3%
8.07
US$64,560 		8,000 +4.3% 8.07 US$64,560
2023-09-13 2023-09-12 B Purchase
3.4
Chaclas Angelo N.

SVP, CLO, CCO & CORP. SEC.

Officer
20,000 +29.2%
8.07
US$161,400 		20,000 +29.2% 8.07 US$161,400
2023-09-13 2023-09-12 B Purchase
3.3
Thomas Timothy J

SVP, MFCTG & OPER EXCELLENCE

Officer
3,000 +20.1%
7.94
US$23,820 		3,000 +20.1% 7.94 US$23,820
2022-11-18 2022-11-16 S Sale
3.2
MARTENS PHILIP R
Non-Executive Director
6,900 -40.1%
24.60
US$169,706 		6,900 -40.1% 24.60 US$169,706
2022-09-09 2022-09-08 B Purchase
2.7
Desmond Jeanmarie F.
Non-Executive Director
2,850 +50.3%
25.01
US$71,278 		2,850 +50.3% 25.01 US$71,278
2022-09-09 2022-09-07 B Purchase
2.7
Desmond Jeanmarie F.
Non-Executive Director
1,335 +30.8%
25.46
US$33,989 		1,335 +30.8% 25.46 US$33,989
2022-08-16 2022-08-15 B Purchase
3.4
COTE JEFFREY J
Non-Executive Director
10,000 +49.7%
31.76
US$317,600 		10,000 +49.7% 31.76 US$317,600
2022-07-20 2022-07-19 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
43.51
US$130,530 		3,000 -0.0% 43.51 US$130,530
2022-05-31 2022-05-27 S Sale
3.4
Skeete Bernard M

VP, CAO and Global Controller

Officer
944 -9.6%
46.99
US$44,359 		944 -9.6% 46.99 US$44,359
2022-05-26 2022-05-25 PlS Planned sale
3.9
BOZICH FRANK A

CEO and President

Executive Director
20,957 -14.0%
43.61
US$913,935 		20,957 -14.0% 43.61 US$913,935
2022-04-08 2022-04-06 PlS Planned sale
3.9
BOZICH FRANK A

CEO and President

Executive Director
20,957 -14.0%
45.96
US$963,184 		20,957 -14.0% 45.96 US$963,184
2022-03-16 2022-03-14 B Purchase
2.6
ALVARADO JOSEPH
Non-Executive Director
1,000 +7.3%
46.94
US$46,940 		1,000 +7.3% 46.94 US$46,940
2022-03-09 2022-03-09 PlS Planned sale
3.9
BOZICH FRANK A

CEO and President

Executive Director
12,000 -8.6%
48.13
US$577,560 		12,000 -8.6% 48.13 US$577,560
2022-02-16 2022-02-15 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
57.57
US$172,710 		3,000 -0.0% 57.57 US$172,710
2022-02-14 2022-02-11 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
58.76
US$176,280 		3,000 -0.0% 58.76 US$176,280
2022-02-04 2022-02-02 PlS Planned sale
3.9
BOZICH FRANK A

CEO and President

Executive Director
20,957 -15.5%
53.89
US$1,129,373 		20,957 -15.5% 53.89 US$1,129,373
2022-01-07 2022-01-05 PlS Planned sale
3.9
BOZICH FRANK A

CEO and President

Executive Director
20,957 -15.5%
56.62
US$1,186,585 		20,957 -15.5% 56.62 US$1,186,585
2021-11-16 2021-11-12 S Sale
2.5
HEEZEN ALICE

SVP - Human Resources

Officer
1,738 -14.7%
57.94
US$100,700 		1,738 -14.7% 57.94 US$100,700
2021-11-16 2021-11-12 S Sale
2.5
HEEZEN ALICE

SVP - Human Resources

Officer
11,806 -50.0%
57.75
US$681,796 		11,806 -50.0% 57.75 US$681,796
2021-09-17 2021-09-15 B Purchase
2.8
FARRELL MATTHEW
Non-Executive Director
5,000 +35.1%
48.53
US$242,650 		5,000 +35.1% 48.53 US$242,650
2021-06-04 2021-06-03 S Sale
3.1
Johnson KLynne
Non-Executive Director
2,576 -22.6%
66.92
US$172,386 		2,576 -22.6% 66.92 US$172,386
2021-06-02 2021-06-01 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
66.50
US$199,500 		3,000 -0.0% 66.50 US$199,500
2021-05-06 2021-05-05 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
5,000 -0.1%
67.85
US$339,250 		5,000 -0.1% 67.85 US$339,250
2021-05-06 2021-05-05 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
5,000 -0.1%
68.53
US$342,650 		5,000 -0.1% 68.53 US$342,650
2021-05-05 2021-05-04 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
64.55
US$193,650 		3,000 -0.0% 64.55 US$193,650
2021-04-27 2021-04-26 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
63.96
US$191,880 		3,000 -0.0% 63.96 US$191,880
2021-04-26 2021-04-23 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
63.69
US$191,070 		3,000 -0.0% 63.69 US$191,070
2021-04-22 2021-04-21 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
63.79
US$191,370 		3,000 -0.0% 63.79 US$191,370
2021-03-29 2021-03-26 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
65.92
US$131,840 		2,000 -0.0% 65.92 US$131,840
2021-03-19 2021-03-18 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
75.41
US$226,230 		3,000 -0.0% 75.41 US$226,230
2021-03-18 2021-03-17 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
72.51
US$145,020 		2,000 -0.0% 72.51 US$145,020
2021-03-15 2021-03-11 S Sale
3.3
Thomas Timothy J

Vice President

Officer
3,286 -29.6%
73.01
US$239,911 		3,286 -29.6% 73.01 US$239,911
2021-03-12 2021-03-11 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
74.97
US$224,910 		3,000 -0.0% 74.97 US$224,910
2021-03-11 2021-03-10 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
72.12
US$144,240 		2,000 -0.0% 72.12 US$144,240
2021-03-11 2021-03-10 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
72.06
US$216,180 		3,000 -0.0% 72.06 US$216,180
2021-03-11 2021-03-10 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
72.56
US$217,680 		3,000 -0.0% 72.56 US$217,680
2021-03-09 2021-03-08 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
68.82
US$206,460 		3,000 -0.0% 68.82 US$206,460
2021-03-04 2021-03-03 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
67.55
US$135,100 		2,000 -0.0% 67.55 US$135,100
2021-03-04 2021-03-03 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
67.88
US$203,640 		3,000 -0.0% 67.88 US$203,640
2021-03-02 2021-03-01 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
68.38
US$136,760 		2,000 -0.0% 68.38 US$136,760
2021-03-02 2021-03-01 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
67.08
US$201,240 		3,000 -0.0% 67.08 US$201,240
2021-03-01 2021-02-26 S Sale
3.4
Skeete Bernard M

VP, CAO and Global Controller

Officer
415 -5.5%
64.18
US$26,635 		415 -5.5% 64.18 US$26,635
2021-03-01 2021-02-26 S Sale
3.4
Chaclas Angelo N.

SVP, CLO, CCO & Corp. Sec.

Officer
15,884 -33.9%
65.22
US$1,035,954 		15,884 -33.9% 65.22 US$1,035,954
2021-03-01 2021-02-25 S Sale
3.4
Skeete Bernard M

VP, CAO and Global Controller

Officer
2,259 -24.0%
64.92
US$146,654 		2,259 -24.0% 64.92 US$146,654
2021-03-01 2021-02-25 S Sale
3.6
Leib Ryan J

Vice President and Treasurer

Officer
6,273 -41.6%
65.36
US$410,003 		6,273 -41.6% 65.36 US$410,003
2021-03-01 2021-02-25 S Sale
3.2
Stasse David Phillip

EVP and CFO

Officer
16,546 -26.8%
65.45
US$1,082,936 		16,546 -26.8% 65.45 US$1,082,936
2021-02-26 2021-02-25 S Sale
3.4
COTE JEFFREY J
Non-Executive Director
5,000 -31.7%
65.82
US$329,100 		5,000 -31.7% 65.82 US$329,100
2021-02-26 2021-02-25 B Purchase
2.8
FARRELL MATTHEW
Non-Executive Director
5,000 +71.4%
65.51
US$327,550 		5,000 +71.4% 65.51 US$327,550
2021-02-25 2021-02-24 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
5,000 -0.1%
64.84
US$324,200 		5,000 -0.1% 64.84 US$324,200
2021-02-23 2021-02-22 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
63.28
US$126,560 		2,000 -0.0% 63.28 US$126,560
2021-02-23 2021-02-22 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
5,000 -0.1%
64.88
US$324,400 		5,000 -0.1% 64.88 US$324,400
2021-02-22 2021-02-19 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
5,000 -0.1%
61.77
US$308,850 		5,000 -0.1% 61.77 US$308,850
2021-02-22 2021-02-19 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
61.74
US$123,480 		2,000 -0.0% 61.74 US$123,480
2021-02-17 2021-02-16 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
60.78
US$182,340 		3,000 -0.0% 60.78 US$182,340
2021-02-17 2021-02-16 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
60.57
US$181,710 		3,000 -0.0% 60.57 US$181,710
2021-02-12 2021-02-11 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
57.36
US$114,720 		2,000 -0.0% 57.36 US$114,720
2021-02-09 2021-02-08 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
57.20
US$171,600 		3,000 -0.0% 57.20 US$171,600
2021-02-08 2021-02-05 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
56.22
US$168,660 		3,000 -0.0% 56.22 US$168,660
2021-02-02 2021-02-01 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
3,000 -0.0%
52.24
US$156,720 		3,000 -0.0% 52.24 US$156,720
2021-01-29 2021-01-28 S Sale
3.6
M&G INVESTMENT MANAGEMENT LTD
Large shareholder
2,000 -0.0%
53.26
US$106,520 		2,000 -0.0% 53.26 US$106,520
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