Go Pro
→ Porter flew 3,300 miles to investigate this system (From Porter & Company) (Ad)tc pixel Free TSE Stock Alerts

Trinseo (TSE) Institutional Ownership

Trinseo logo
$0.23 0.00 (0.00%)
As of 09/17/2026
Compare

Institutional Ownership Changes (13F Filings) for Trinseo (NYSE:TSE)

Current
Institutional Ownership
Percentage
82.69%
Number of
Institutional Buyers
(last 12 months)
11
Total
Institutional Inflows
(last 12 months)
$2.33M
Number of
Institutional Sellers
(last 12 months)
8
Total
Institutional Outflows
(last 12 months)
$3.79M
Get TSE Insider Trade Alerts

Want to know when executives and insiders are buying or selling Trinseo stock? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily.

Subscribe Now
SMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy.
Skip Chart & View Institutional Buying and Selling Data

TSE Institutional Buying and Selling by Quarter

Trinseo Major Shareholders & Ownership History

Export
Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
7/7/2026 GAMMA Investing LLC412,655$95K0.0%+19,111.1%1.172%
2/19/2026 Invesco Ltd.70,320$35K0.0%-46.6%0.200%
2/18/2026 CastleKnight Management LP516,826$257K0.0%-79.0%1.468%
2/13/2026 Charles Schwab Investment Management Inc.2,091,125$1.04M0.0%+38.9%5.941%
2/13/2026 State Street Corp478,033$238K0.0%+12.8%1.358%
2/12/2026 Renaissance Technologies LLC276,100$137K0.0%-12.3%0.784%
2/11/2026 Deutsche Bank AG125,610$63K0.0%+336.4%0.357%
2/10/2026 Goldman Sachs Group Inc.580,623$289K0.0%+360.8%1.649%
1/1/2026 JPMorgan Chase & Co.26,323$62K0.0%-92.8%0.075%
11/17/2025 Icon Advisers Inc. Co.1,000,000$2.35M0.5%+33.3%2.841%
11/17/2025 Voleon Capital Management LP82,074$193K0.0%N/A0.233%
11/17/2025 Susquehanna International Group LLP11,703$28K0.0%-85.5%0.033%
11/17/2025 Bank of America Corp DE363,641$855K0.0%+20.0%1.033%
11/14/2025 Two Sigma Investments LP35,714$84K0.0%-73.6%0.101%
11/13/2025 BNP Paribas Financial Markets23,454$55K0.0%-43.6%0.067%
11/13/2025 Brightline Capital Management LLC1,060,000$2.49M1.0%+3.7%3.011%
11/13/2025 Russell Investments Group Ltd.13,276$31K0.0%+2,181.1%0.038%
11/12/2025 Icon Advisers Inc. Co.1,000,000$2.35M0.5%+33.3%2.841%
11/7/2025Vanguard Group Inc.755,643$1.78M0.0%-29.8%2.102%
11/7/2025 JPMorgan Chase & Co.26,323$62K0.0%-92.8%0.073%
10/31/2025 PFG Investments LLC23,004$54K0.0%+64.3%0.064%
8/15/2025 Sugar Maple Asset Management LLC13,000$41K0.0%N/A0.036%
8/15/2025 Owl Creek Asset Management L.P.1,669,952$5.21M0.2%+337.0%4.645%
8/15/2025 Engineers Gate Manager LP72,806$227K0.0%+625.5%0.203%
8/15/2025 BNP Paribas Financial Markets41,586$130K0.0%+80.2%0.116%
8/15/2025 Bank of America Corp DE302,965$945K0.0%-2.7%0.843%
8/14/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.18,600$58K0.0%N/A0.052%
8/13/2025 Marshall Wace LLP190,397$594K0.0%-77.9%0.530%
8/13/2025 Invesco Ltd.195,259$609K0.0%-23.6%0.543%
8/13/2025 Icon Advisers Inc. Co.750,000$2.34M0.5%N/A2.086%
8/13/2025 New York State Common Retirement Fund29,500$92K0.0%N/A0.082%
8/12/2025 JPMorgan Chase & Co.364,444$1.14M0.0%-6.5%1.014%
8/8/2025 Intech Investment Management LLC15,514$48K0.0%N/A0.044%
8/8/2025 Police & Firemen s Retirement System of New Jersey8,769$27K0.0%N/A0.025%
8/8/2025 Geode Capital Management LLC823,044$2.57M0.0%+105.8%2.309%
8/7/2025 Los Angeles Capital Management LLC34,760$108K0.0%N/A0.098%
8/1/2025 May Hill Capital LLC10,594$33K0.0%N/A0.030%
6/27/2025 Goldman Sachs Group Inc.343,604$1.26M0.0%+43.0%0.964%
5/21/2025Acadian Asset Management LLC329,306$1.21M0.0%+267.9%0.924%
5/19/2025Jane Street Group LLC267,745$985K0.0%-19.0%0.751%
The end of AI data centers coming? (Ad)

Marc Chaikin's Power Gauge system flagged Micron before it soared 970 percent, Celestica before a 6,600 percent run, and Nvidia before it climbed more than 50,000 percent. Now Chaikin says a new AI data center technology using 99 percent less electricity, water, and space could accelerate scientific breakthroughs 360-fold, and one company behind it just flashed bullish in his system. See the full research and the ticker Chaikin is watching before this presentation goes offline.tc pixel

Watch Chaikin's free presentation and see the ticker now
5/16/2025Goldman Sachs Group Inc.343,604$1.26M0.0%+43.0%0.964%
5/16/2025Dynamic Technology Lab Private Ltd32,107$118K0.0%N/A0.090%
5/15/2025Cubist Systematic Strategies LLC50,656$186K0.0%-15.1%0.142%
5/15/2025OMERS ADMINISTRATION Corp72,200$266K0.0%+11.6%0.203%
5/14/2025Jump Financial LLC45,802$169K0.0%-15.7%0.128%
5/14/2025Brightline Capital Management LLC1,016,000$3.74M3.2%+7.5%2.850%
5/12/2025Kohmann Bosshard Financial Services LLC44,605$164K0.0%+28.9%0.125%
5/12/2025Alta Fundamental Advisers LLC53,618$197K0.1%-86.3%0.150%
5/12/2025Invesco Ltd.255,668$941K0.0%-18.7%0.717%
5/9/2025Charles Schwab Investment Management Inc.362,646$1.34M0.0%-31.2%1.017%
3/17/2025NorthCrest Asset Manangement LLC11,800$60K0.0%-35.5%0.033%
2/27/2025Jefferies Financial Group Inc.30,000$153K0.0%+14.5%0.085%
2/18/2025PharVision Advisers LLC58,413$298K0.3%N/A0.165%
2/17/2025Squarepoint Ops LLC10,918$56K0.0%-72.6%0.031%
2/17/2025Two Sigma Advisers LP204,400$1.04M0.0%-9.1%0.577%
2/17/2025Two Sigma Investments LP326,592$1.67M0.0%+2.7%0.923%
2/17/2025State of Wyoming10,373$53K0.0%N/A0.029%
2/17/2025Point72 Asia Singapore Pte. Ltd.36,965$189K0.0%+33.5%0.104%
2/17/2025Man Group plc18,778$96K0.0%N/A0.053%
2/17/2025OMERS ADMINISTRATION Corp64,700$330K0.0%N/A0.183%
2/17/2025Millennium Management LLC178,244$909K0.0%-61.0%0.504%
2/17/2025Jefferies Financial Group Inc.30,000$153K0.0%+14.5%0.085%
2/17/2025D. E. Shaw & Co. Inc.581,795$2.97M0.0%-32.6%1.643%
2/17/2025Cubist Systematic Strategies LLC59,639$304K0.0%-33.4%0.168%
2/17/2025CastleKnight Management LP2,479,618$12.65M0.4%+128.1%7.005%
2/17/2025Cetera Investment Advisers15,991$82K0.0%N/A0.045%
2/17/2025Bank of America Corp DE335,947$1.71M0.0%+3.9%0.949%
2/17/2025BNP Paribas Financial Markets14,493$74K0.0%N/A0.041%
2/17/2025Alta Fundamental Advisers LLC390,500$1.99M0.6%-0.7%1.103%
2/17/2025683 Capital Management LLC124,763$636K0.0%N/A0.352%
2/14/2025Jane Street Group LLC330,467$1.69M0.0%+32.4%0.934%
2/14/2025Schonfeld Strategic Advisors LLC49,645$253K0.0%N/A0.140%
2/14/2025Tudor Investment Corp ET AL16,688$85K0.0%-11.2%0.047%
2/14/2025Quarry LP15,571$79K0.0%N/A0.044%
2/14/2025Boothbay Fund Management LLC19,464$99K0.0%N/A0.055%
2/14/2025Susquehanna Fundamental Investments LLC15,742$80K0.0%N/A0.044%
2/14/2025Two Sigma Securities LLC11,871$61K0.0%-15.7%0.034%
2/14/2025Dimensional Fund Advisors LP41,224$210K0.0%N/A0.116%
2/13/2025Marshall Wace LLP618,192$3.15M0.0%+1.7%1.746%
2/13/2025Jump Financial LLC54,324$277K0.0%N/A0.153%
2/13/2025XTX Topco Ltd52,710$269K0.0%-40.3%0.149%
2/13/2025Barclays PLC48,352$247K0.0%+48.5%0.137%
2/13/2025Brightline Capital Management LLC945,000$4.82M3.8%N/A2.669%
2/13/2025Covestor Ltd7,144$36K0.0%N/A0.020%
2/13/2025Renaissance Technologies LLC229,300$1.17M0.0%+18.1%0.648%
2/13/2025Invesco Ltd.314,658$1.61M0.0%+0.9%0.889%
2/12/2025Geode Capital Management LLC388,751$1.98M0.0%+0.7%1.098%
2/12/2025JPMorgan Chase & Co.229,503$1.17M0.0%-46.7%0.648%
2/11/2025LPL Financial LLC19,936$102K0.0%N/A0.056%
2/11/2025Truffle Hound Capital LLC350,000$1.79M0.6%N/A0.989%
Porter flew 3,300 miles to investigate this system (Ad)

Porter Stansberry flew the Porter and Co. team 3,300 miles to Dublin to investigate a 17-year investing experiment called Project Prophet - and documented everything on film. Rooted in the laws of physics, this quantitative approach challenges conventional wealth-building wisdom. With 17 years of verified data behind it, Porter calls it unlike anything he has seen in nearly 30 years in the business.tc pixel

Watch the full investigation and decide for yourself
2/11/2025Virtu Financial LLC32,587$166K0.0%N/A0.092%
2/10/2025Thrivent Financial for Lutherans116,248$593K0.0%-28.8%0.328%
2/6/2025Charles Schwab Investment Management Inc.526,924$2.69M0.0%-48.6%1.488%
1/30/2025Rhumbline Advisers7,879$40K0.0%+103.2%0.022%
1/17/2025SG Americas Securities LLC10,097$51K0.0%N/A0.029%
12/26/2024JPMorgan Chase & Co.430,340$2.20M0.0%+10.4%1.216%
11/19/2024Barclays PLC32,566$167K0.0%-81.5%0.092%
11/16/2024Geode Capital Management LLC385,931$1.97M0.0%+4.0%1.090%
11/15/2024Barclays PLC32,566$167K0.0%-81.5%0.092%
11/15/2024Public Employees Retirement System of Ohio12,202$62K0.0%-66.8%0.034%


TSE Institutional Ownership - Frequently Asked Questions

During the previous two years, 70 institutional investors and hedge funds held shares of Trinseo. The most heavily invested institutionals were Owl Creek Asset Management L.P. ($5.21M), D. E. Shaw & Co. Inc. ($2.97M), Geode Capital Management LLC ($2.57M), Brightline Capital Management LLC ($2.49M), Icon Advisers Inc. Co. ($2.35M), Truffle Hound Capital LLC ($1.79M), and Vanguard Group Inc. ($1.78M).Learn more on Trinseo's institutional investors.

82.69% of Trinseo's stock is owned by institutional investors. Learn more on TSE's institutional investor holdings.

Of the 56 institutional investors that purchased Trinseo's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: CastleKnight Management LP ($1.39M), Owl Creek Asset Management L.P. ($1.29M), Icon Advisers Inc. Co. ($1.25M), Brightline Capital Management LLC ($1.05M), Goldman Sachs Group Inc. ($661.22K), Charles Schwab Investment Management Inc. ($586.06K), and Geode Capital Management LLC ($440.81K).

Institutional investors have bought a total of 2,304,712 shares in the last 24 months. This purchase volume represents approximately $2.33M in transactions.

The following institutional investors have sold Trinseo stock in the last 24 months: CastleKnight Management LP ($1.95M), JPMorgan Chase & Co. ($676.24K), Vanguard Group Inc. ($321.01K), Two Sigma Investments LP ($99.42K), Susquehanna International Group LLP ($69.28K), Invesco Ltd. ($61.48K), and Renaissance Technologies LLC ($38.60K).

Institutional investors have sold a total of 3,234,168 shares in the last 24 months. This volume of shares sold represents approximately $3.79M in transactions.


Related Companies

Institutional ownership data for NYSE:TSE is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 7/7/2026. New 13F filings are added each quarter as they're published.
From Our Partners
Elon Musk’s Hushed FCC Filing. Sept 25th.
Elon Musk quietly filed a document with the federal government tied to artificial intelligence, one of the lar...
Paradigm Press | Sponsoredtc pixel
Shocking new footage just released
Gerardo Del Real is calling it the Third Convergence Event, a new catalyst hitting the uranium market that he ...
Digest Publishing | Sponsoredtc pixel
Iran War: Why Is Trump Protecting THEM?
A powerful Middle Eastern government is reportedly seeking US intelligence, targeting help, and military prote...
Banyan Hill Publishing | Sponsoredtc pixel
Why I went to Mount Rushmore
A small miner just hit on gold in the hills surrounding Mount Rushmore, thanks to a breakthrough new technolog...
Stansberry Research | Sponsoredtc pixel
The trade I’ve been waiting for since 2011
Ross Givens, Director of Research at Traders Agency, is calling for gold to reach $10,000 an ounce this superc...
Traders Agency | Sponsoredtc pixel
A “bloodbath” Is Coming
Reports suggest some Silicon Valley billionaires are stockpiling gold, guns, and gas masks - or leaving the co...
TradeSmith | Sponsoredtc pixel
The cat is out the bag
Almost 80,000 tech jobs vanished in the first three months of 2026. Meta cut 14,000 roles, Microsoft offered s...
Porter & Company | Sponsoredtc pixel
The retirement stock I'd buy before Nvidia today
In 2014, Marc Chaikin pointed readers toward Nvidia. Now the 60-year Wall Street veteran and creator of the Ch...
Chaikin Analytics | Sponsoredtc pixel