Polaris Capital Management portfolio
Concentrated managerInvestment firmPortfolio as of Sep 30, 2026 (Q3 2026) · filed with the SEC on Oct 21, 2026 · data updated on Nov 5, 2026 · Q3 2026 13F (filing) ↗ · all its 13F filings ↗
A 13F shows the portfolio at quarter-end and is filed up to 45 days later: these are not real-time positions and they may have changed.
Polaris Capital Management reported a $953M portfolio of 86 positions to the SEC as of the end of Q3 2026. Its largest positions are BPOP, JAZZ, SW. During the quarter it opened Regeneron Pharmaceuticals and Genpact and exited Webster Financial and Gilead Sciences.
Sections with a free account
What changed this quarter
65 positions with a change (5 new, 6 added to, 51 trimmed, 3 sold). 7 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Webster Financial−2.0 ppof portfolioSold out2.0% → —
- Gilead Sciences−1.8 ppof portfolioSold out1.8% → —
- Regeneron Pharmaceuticals+1.8 ppof portfolioNew— → 2.0%
- Genpact+1.7 ppof portfolioNew— → 1.8%
- Nomad Foods−62%fewer sharesReduced1.8% → 0.7%
- Smurfit Westrock−8.9%fewer sharesReduced7.1% → 6.9%
- Eastman Chemical−28%fewer sharesReduced2.1% → 1.7%
The figure on the right: for positions added to or trimmed, the change in the number of shares (%); for new and sold ones, the points of the portfolio moved (pp). Below, the portfolio weight before → after. Traded weight: what it bought or sold, excluding price effects.
Top holdings
- PopularBPOP8.3%
- Jazz PharmaceuticalsJAZZ7.8%
- Smurfit WestrockSW6.9%
- LindeLIN5.0%
- Arrow ElectronicsARW4.4%
- Lantheus HoldingsLNTH4.1%
- Marathon PetroleumMPC3.6%
- CVS HealthCVS3.1%
- JPMorgan ChaseJPM3.0%
- United TherapeuticsUTHR2.8%
- SLMSLM2.4%
- CytokineticsCYTK2.4%
- IngredionINGR2.2%
- International BancsharesIBOC2.2%
- Cullen/Frost BankersCFR2.0%
“Since”: first quarter of the current run, unbroken until today. In the details, prices are the quarter-end prices of the quarters in which it added shares, per the 13F. The manager may have bought at any price within each quarter; the SEC only publishes the value at quarter end.
Portfolio by sector
- ● Financials 28%
- ● Health Care 27%
- ● Materials 14%
- ● Information Technology 7%
- ● Industrials 7%
- ● Energy 6%
- ● Consumer Staples 5%
- ● Consumer Discretionary 3%
- ● Utilities 2%
- ● Real Estate 1%
- ● No sector 1%
How its portfolio changed (8 quarters)
Q3 2026: 86
Q3 2026: 49%
Q3 2026: 7.9%
Traded turnover: the weight it bought plus the weight it sold in the quarter, divided by two, excluding price moves. The plain “turnover” in the header does include that effect. With a free account: the full history and sectors over time.
Stakes above 5% (13D/13G)
Companies where this filer reported holding 5% or more of the shares. It is the figure from its latest filing on each one; history since December 2024.
How we classify it
Investment firm, per its Form ADV of Jan 30, 2026 (high confidence).
The data, as reported: POLARIS CAPITAL MANAGEMENT, LLC (CRD 106278): Manages registered funds; 5.D assets by client type: registered funds 50%, pooled vehicles 17%, pension plans 17%, other 9% (of $5.5 bn)
The type comes from a rule applied to that data. If it looks wrong, tell us.
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