Frontier Capital Management portfolio
Type 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.
Frontier Capital Management reported a $10.7 bn portfolio of 300 positions to the SEC as of the end of Q2 2026. Its largest positions are FTAI, GVA, ALK. During the quarter it opened Dynatrace.
Sections with a free account
What it reported after the quarter end (Q2 2026)
The 13F shows the portfolio as of Jun 30, 2026. Since then Frontier Capital Management has filed these own trades with the SEC (Form 4, when it owns more than 10% of a company or holds a role in it) and stakes above 5% (13D and 13G). It is not everything it did: only what it must report before the next 13F.
What changed this quarter
317 positions with a change (33 new, 94 added to, 168 trimmed, 22 sold); also, 2 exited through an acquisition or merger. 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).
- Ultra Clean Holdings−63%fewer sharesReduced1.1% → 0.9%
- Applied Optoelectronics+243%more sharesIncreased0.2% → 1.3%
- Darling Ingredients−68%fewer sharesReduced1.6% → 0.4%
- Apogee Therapeutics−71%fewer sharesReduced0.9% → 0.4%
- Astera Labs−78%fewer sharesReduced0.8% → 0.7%
- Entegris−53%fewer sharesReduced0.9% → 0.6%
- Dynatrace+0.7 ppof portfolioNew— → 0.7%
- Insulet+261%more sharesIncreased0.4% → 0.9%
- Sanmina−41%fewer sharesReduced0.8% → 0.9%
- Monolithic Power Systems−59%fewer sharesReduced0.9% → 0.4%
- Sila Realty Trust−86%fewer sharesReduced0.7% → 0.1%
- Jazz Pharmaceuticals−46%fewer sharesReduced1.0% → 0.6%
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
- FTAI AviationFTAI3.0%
- Granite ConstructionGVA1.6%
- Alaska Air GroupALK1.6%
- Applied OptoelectronicsAAOI1.3%
- Akamai TechnologiesAKAM1.3%
- AshlandASH1.2%
- Lattice SemiconductorLSCC1.2%
- PopularBPOP1.1%
- MongodbMDB1.0%
- United TherapeuticsUTHR1.0%
- Knight-Swift Transportation HoldingsKNX1.0%
- Eagle MaterialsEXP1.0%
- StrideLRN1.0%
- XPOXPO1.0%
- BridgeBio PharmaBBIO1.0%
Portfolio by sector
- ● Industrials 25%
- ● Information Technology 22%
- ● Health Care 17%
- ● Financials 12%
- ● Consumer Discretionary 9%
- ● Materials 6%
- ● Real Estate 3%
- ● Energy 3%
- ● Consumer Staples 1%
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: we have not assigned a type because we found no document that is enough to tell. Most 13F filers are in this situation: we only review in depth those that meet the portfolio criteria.
Not counted as a concentrated manager: its portfolio is not within 5 to 100 positions; its top 10 positions are under 45%. Its portfolio is shown all the same, but it is left out of manager counts, the consensus and the ranking. How this is decided
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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