American Capital Management portfolio
Investment firmPortfolio 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.
American Capital Management reported a $2.2 bn portfolio of 79 companies (80 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are PANW, FTNT, MEDP. During the quarter it opened Mercury Systems.
Sections with a free account
What changed this quarter
65 positions with a change (7 new, 17 added to, 40 trimmed, 1 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).
- Mercury Systems+2.7 ppof portfolioNew— → 2.7%
- LiveRamp Holdings−87%fewer sharesReduced2.7% → 0.4%
- nCino+115%more sharesIncreased1.9% → 3.7%
- Dorman Products+370%more sharesIncreased0.3% → 1.7%
- RBC Bearings−18%fewer sharesReduced5.1% → 4.2%
- Jack Henry & Associates−59%fewer sharesReduced2.1% → 0.6%
- Palo Alto Networks−8.2%fewer sharesReduced5.4% → 8.8%
- Fortinet−12%fewer sharesReduced3.6% → 5.0%
- Commvault Systems−18%fewer sharesReduced2.3% → 2.8%
- Aaon+36%more sharesIncreased1.2% → 2.1%
- Dynatrace+26%more sharesIncreased2.1% → 2.6%
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
- Palo Alto NetworksPANW8.8%
- FortinetFTNT5.0%
- Medpace HoldingsMEDP5.0%
- Varonis SystemsVRNS4.2%
- RBC BearingsRBC4.2%
- Idexx LaboratoriesIDXX3.8%
- nCinoNCNO3.7%
- AerovironmentAVAV3.1%
- Bio-techneTECH3.1%
- SEI InvestmentsSEIC2.9%
- Commvault SystemsCVLT2.8%
- NovantaNOVT2.7%
- Mercury SystemsMRCY2.7%
- DynatraceDT2.6%
- Cognyte SoftwareCGNT2.4%
“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 48%
- ● Health Care 24%
- ● Industrials 19%
- ● Financials 5%
- ● Consumer Discretionary 3%
- ● Real Estate 1%
How its portfolio changed (8 quarters)
Q2 2026: 80
Q2 2026: 44%
Q2 2026: 9.0%
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 Jun 30, 2026 (medium confidence).
The data, as reported: AMERICAN CAPITAL MANAGEMENT INC (CRD 110861): Mixed client base, discretionary; 5.D assets by client type: high net worth 42%, pooled vehicles 25%, corporations 23%, charities 10% (of $2.1 bn); 5.F 498 accounts, 0% non-discretionary; 5.D 333 clients, 272 individuals
The type comes from a rule applied to that data. If it looks wrong, tell us.
Not counted as a concentrated manager: 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
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Same type of filer and a 13F portfolio value between a third and three times this one. It is not a comparison of what they hold.
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