Parnassus Investments
Parnassus Investments · SEC CIK 948669
Principled investing in quality US names.
This filing is 67 days old. Parnassus Investments keeps roughly 92% of its positions in a typical quarter, so about 94% of this book is likely still intact today.
How half-life is computedSnapshot half-life is the number of days after the period end at which half of this specific fund's reported book is expected to have changed, measured from its own past filings. It is a decay estimate, not knowledge of current positions.
Largest holdings, as filed
Top 10 of 135 positions. Weights are against the whole filed book. 13F filings cover US-listed holdings only.
| Company | Ticker | Value | % of book | Freshness |
|---|---|---|---|---|
| ALPHABET INC | GOOGL | $1.96B | 5.2% | |
| APPLIED MATLS INC | AMAT | $1.83B | 4.9% | |
| MICROSOFT CORP | MSFT | $1.75B | 4.7% | |
| NVIDIA CORPORATION | NVDA | $1.69B | 4.5% | |
| AMAZON COM INC | AMZN | $1.65B | 4.4% | |
| ADVANCED MICRO DEVICES INC | AMD | $1.35B | 3.6% | |
| KLA CORP | KLAC | $1.33B | 3.5% | |
| APPLE INC | AAPL | $1.25B | 3.3% | |
| WASTE MGMT INC DEL | WM | $1.07B | 2.9% | |
| DEERE & CO | DE | $1.04B | 2.8% |
Freshness: how likely each position is still held today, from this fund's own turnover history, each position's tenure and the filing's age. Hover a bar for the numbers. Method.
What changed last quarter
Between Q1 2026 and Q2 2026, the largest add was MSFT (shares up 12%), now $1.75B; the largest trim was GOOGL (shares down 15%); CRM, VRSK no longer appear among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Biggest buys, Q2 2026
Common questions
What are Parnassus Investments's biggest holdings?
As of the Q2 2026 13F, the largest reported positions at Parnassus Investments are GOOGL (5.2% of the book), AMAT (4.9% of the book), MSFT (4.7% of the book).
How big is Parnassus Investments's portfolio?
The latest 13F reports $37.45B across 135 US-listed positions. 13F filings cover US-listed holdings only, so non-US positions and shorts are not included.
Does Parnassus Investments still hold these positions?
Unknown for certain: a 13F may be filed up to 45 days after quarter end. Based on Parnassus Investments's own filing history, the fund keeps roughly 92% of positions in a typical quarter, so at 67 days since the period end roughly 94% of this book is likely intact. The snapshot half-life for this fund is about 774 days.
What did Parnassus Investments buy and sell last quarter?
Between Q1 2026 and Q2 2026, the largest add was MSFT (shares up 12%), now $1.75B; the largest trim was GOOGL (shares down 15%); CRM, VRSK no longer appear among the previous quarter's largest positions. All of it computed from the two filings, nothing inferred.
Funds with overlapping books
Inside the app: the full book for Parnassus Investments, quarter on quarter buys and sells, consensus across 140+ funds and copy-to-watchlist.
Source: SEC EDGAR 13F filings. Values are as filed and cover US-listed positions only. A 13F may be filed up to 45 days after the quarter ends, so positions can change before the filing is even public; the freshness figures above quantify that lag instead of hiding it. Educational information, not financial advice.