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Ithaka Group portfolio

Concentrated managerInvestment firm

Portfolio as of Jun 30, 2026 (Q2 2026) · filed with the SEC on Aug 11, 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.

Ithaka Group reported a $551M portfolio of 39 companies (40 positions, counting each share class separately) to the SEC as of the end of Q2 2026. Its largest positions are AMD, NVDA, AMZN. During the quarter it opened Lam Research and Taiwan Semiconductor Manufacturing and exited Cadence Design Systems and Dexcom.

Stock portfolio
$551M
Companies
39
40 positions (by CUSIP)Top 10: 55%
Turnover
24%
Copying its 13F, 5 years
6.1%/yr
SPY 11.8% · -5.7%price only, no dividends

Sections with a free account

What changed this quarter

37 positions with a change (6 new, 4 added to, 23 trimmed, 4 sold). 12 are listed here: those of 0.5 points of the portfolio or more (up to 12).

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

“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 53%
  • ● Industrials 12%
  • ● Communication Services 10%
  • ● Consumer Discretionary 10%
  • ● Financials 8%
  • ● Health Care 7%

How its portfolio changed (8 quarters)

Positions

Q2 2026: 40

400
Q3 2024Q2 2026
Top 10 weight

Q2 2026: 55%

60%55%
Q3 2024Q2 2026
Traded turnover

Q2 2026: 15.1%

15.1%0
Q3 2024Q2 2026

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 Sep 22, 2026 (medium confidence).

The data, as reported: THE ITHAKA GROUP, LLC (CRD 146975): Mixed client base, discretionary; 5.D assets by client type: high net worth 45%, registered funds 37%, corporations 9%, charities 8% (of $572M); 5.F 126 accounts, 0% non-discretionary; 5.D 126 clients, 107 individuals

The type comes from a rule applied to that data. If it looks wrong, tell us.

Similar managers by type and size

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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