Trinseo PLC
Total Trades
26
Buys
10
Sells
10
Largest Trade
N/A
Insiders
11
Institutional Funds
55
Inst. Value
$1M+
Activist Filings
9
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| Frisch Johanna | VP AND TREASURER | BUY | $15K–$50K | 4K | $4.13 | Mar 14, 2025 |
| COTE JEFFREY J | Director | BUY | $100K–$500K | 151K | $3.00 | Aug 20, 2024 |
| Stasse David Phillip | EVP AND CFO | BUY | $100K–$500K | 15K | $8.89 | Sep 18, 2023 |
| Desmond Jeanmarie F. | Director | BUY | $15K–$50K | 3K | $7.94 | Sep 13, 2023 |
| Chaclas Angelo N. | SVP | BUY | $100K–$500K | 20K | $8.07 | Sep 13, 2023 |
| Thomas Timothy J | SVP | BUY | $15K–$50K | 3K | $7.94 | Sep 13, 2023 |
| BOZICH FRANK A | CEO AND PRESIDENT | BUY | $50K–$100K | 8K | $8.07 | Sep 13, 2023 |
| MARTENS PHILIP R | Director | SELL | $100K–$500K | 7K | $24.59 | Nov 18, 2022 |
| Desmond Jeanmarie F. | Director | BUY | $100K–$500K | 4K | $25.15 | Sep 9, 2022 |
| COTE JEFFREY J | Director | BUY | $100K–$500K | 10K | $31.76 | Aug 16, 2022 |
| M&G INVESTMENT MANAGEMENT LTD | 10% Owner | SELL | $100K–$500K | 3K | $43.51 | Jul 20, 2022 |
| Skeete Bernard M | VP | EXERCISE | $15K–$50K | 944 | $24.30 | May 31, 2022 |
| Skeete Bernard M | VP | SELL | $15K–$50K | 944 | $46.99 | May 31, 2022 |
| BOZICH FRANK A | CEO and President | EXERCISE | $500K+ | 21K | $24.30 | May 26, 2022 |
| BOZICH FRANK A | CEO and President | SELL | $500K+ | 21K | $43.61 | May 26, 2022 |
| BOZICH FRANK A | CEO and President | SELL | $500K+ | 21K | $45.96 | Apr 8, 2022 |
| BOZICH FRANK A | CEO and President | EXERCISE | $500K+ | 21K | $24.30 | Apr 8, 2022 |
| ALVARADO JOSEPH | Director | BUY | $15K–$50K | 1K | $46.94 | Mar 16, 2022 |
| BOZICH FRANK A | CEO and President | GRANT | N/A | 36K | — | Mar 9, 2022 |
| BOZICH FRANK A | CEO and President | SELL | $500K+ | 12K | $48.13 | Mar 9, 2022 |
| M&G INVESTMENT MANAGEMENT LTD | 10% Owner | SELL | $100K–$500K | 3K | $57.57 | Feb 16, 2022 |
| M&G INVESTMENT MANAGEMENT LTD | 10% Owner | SELL | $100K–$500K | 3K | $58.76 | Feb 14, 2022 |
| BOZICH FRANK A | CEO and President | SELL | $1M+ | 21K | $53.89 | Feb 4, 2022 |
| BOZICH FRANK A | CEO and President | EXERCISE | $500K+ | 21K | $24.30 | Feb 4, 2022 |
| BOZICH FRANK A | CEO and President | SELL | $1M+ | 21K | $56.62 | Jan 7, 2022 |
| BOZICH FRANK A | CEO and President | EXERCISE | $500K+ | 21K | $24.30 | Jan 7, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 55 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| M&G Plc | 7.6M | $1M+ | SH |
| Nut Tree Capital Management, LP | 3.5M | $1M+ | PRN |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 2.1M | $1M+ | SH |
| ICON ADVISERS INC/CO | 1.0M | $100K–$500K | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 734K | $100K–$500K | SH |
| GSA CAPITAL PARTNERS LLP | 511K | $100K–$500K | SH |
| STATE STREET CORP | 478K | $100K–$500K | SH |
| RENAISSANCE TECHNOLOGIES LLC | 276K | $100K–$500K | SH |
| Alta Fundamental Advisers LLC | 153K | $50K–$100K | SH |
| DEUTSCHE BANK AG\ | 126K | $50K–$100K | SH |
| DIMENSIONAL FUND ADVISORS LP | 74K | $15K–$50K | SH |
| BARCLAYS PLC | 53K | $15K–$50K | SH |
| Kohmann Bosshard Financial Services, LLC | 45K | $15K–$50K | SH |
| Nuveen, LLC | 44K | $15K–$50K | SH |
| Mariner, LLC | 39K | $15K–$50K | SH |
| HRT FINANCIAL LP | 37K | $15K–$50K | SH |
| NEW YORK STATE COMMON RETIREMENT FUND | 30K | $1K–$15K | SH |
| GOLDMAN SACHS GROUP INC | 24K | $1K–$15K | SH |
| RHUMBLINE ADVISERS | 22K | $1K–$15K | SH |
| Jain Global LLC | 19K | $1K–$15K | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Feb 17, 2026
1.4%
517K shares
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
SC 13G · Feb 12, 2026
5.8%
2.1M shares
SC 13G/A · Aug 14, 2025
7.8%
2.8M shares
SC 13G · Jul 17, 2025
6.3%
2.3M shares
SC 13G · Dec 17, 2024
6.7%
2.4M shares
NUT TREE CAPITAL MANAGEMENT, LP
SC 13G · Nov 14, 2024
9.9%
3.5M shares
M&G Investment Management Limited No I.R.S. Identification Number
SC 13D · Aug 12, 2022
21.8%
7.6M shares
M&G Investment Management Limited No I.R.S. Identification Number
SC 13D · May 10, 2022
21.1%
7.6M shares
AllianceBernstein L.P. 13-4064930
SC 13G · Feb 14, 2022
0.0%
0 shares