Front Street Capital Management portfolio
Concentrated managerType not verifiedPortfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 14, 2026 · data updated on Nov 5, 2026 · Q2 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.
Front Street Capital Management reported a $881M portfolio of 69 companies (70 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are LUMN, CGNX, GE. During the quarter it opened Lumen Technologies and exited Vanguard 500 Index Admiral.
Sections with a free account
What changed this quarter
64 positions with a change (5 new, 13 added to, 39 trimmed, 7 sold); also, 1 exited through an acquisition or merger. 11 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Lumen Technologies+10.6 ppof portfolioNew— → 10.6%
- Lumentum Holdings−43%fewer sharesReduced4.9% → 4.2%
- HNI+130%more sharesIncreased1.1% → 2.7%
- Azenta+46%more sharesIncreased2.5% → 3.8%
- Corning−17%fewer sharesReduced3.1% → 4.1%
- Vanguard 500 Index Admiral−0.7 ppof portfolioSold out0.8% → —
- Ciena−20%fewer sharesReduced3.1% → 2.7%
- International Paper+24%more sharesIncreased2.7% → 3.0%
- Cognex−5.1%fewer sharesReduced8.6% → 10.3%
- Coherent−14%fewer sharesReduced2.8% → 3.4%
- Apple−51%fewer sharesReduced1.0% → 0.5%
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
- Lumen TechnologiesLUMN10.6%
- CognexCGNX10.3%
- GE AerospaceGE8.0%
- GE VernovaGEV5.7%
- ManitowocMTW5.1%
- Vanguard S&P 500 ETFVOO4.8%
- Lumentum HoldingsLITE4.2%
- CorningGLW4.1%
- AzentaAZTA3.8%
- Berkshire HathawayBRK/B3.5%
- CoherentCOHR3.4%
- Baxter InternationalBAX3.2%
- International PaperIP3.0%
- CienaCIEN2.7%
- HNIHNI2.7%
“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
- ● Information Technology 30%
- ● Industrials 24%
- ● Communication Services 11%
- ● Materials 9%
- ● Health Care 8%
- ● Financials 5%
- ● No sector 5%
- ● Consumer Discretionary 3%
- ● Consumer Staples 2%
- ● Real Estate 2%
How its portfolio changed (8 quarters)
Q2 2026: 70
Q2 2026: 60%
Q2 2026: 19.9%
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
Type not verified. It meets the portfolio criteria of a concentrated manager, but its type is not verified: we found no official document that is enough to say what kind of entity it is. It may be an investment firm, but also an adviser adding up client accounts, a bank or a family vehicle. It counts in the tallies like the rest; keep that in mind when reading it. How the type is assigned
Managers of a similar size
A 13F portfolio value between a third and three times this one, whatever the type of filer. It is not a comparison of what they hold.
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