Parthenon
Parthenon reported 129 stocks worth $967M in its 13F filing for Q3 2026, filed Oct 22, 2026. Its largest holdings are MSFT (12.1%), BRK.B (7.0%) and GOOGL (5.3%). Compared with Q2 2026, the fund opened new positions in XOM and CLBT, added to META, PAYX and BKNG, trimmed BRK.B, GOOGL and AAPL and sold out of XOM, THRY and SO.
Holdings
| # | Stock | Value | Weight | Shares | Change | Shares, 8 qtrs | Held |
|---|---|---|---|---|---|---|---|
| 1 |  MSFT Microsoft Corp | $117M | 12.1% | 227K | No change | 8 of 8 | |
| 2 |  BRK.B Berkshire Hathaway Inc Del | $68M | 7.0% | 137K | −144 (−0%) | 8 of 8 | |
| 3 |  GOOGL Alphabet Inc | $51.6M | 5.3% | 150K | −1,572 (−1%) | 8 of 8 | |
| 4 |  META Meta Platforms Inc | $49.1M | 5.1% | 68K | +140 (+0%) | 8 of 8 | |
| 5 |  AAPL Apple Inc | $41.8M | 4.3% | 126K | −1,425 (−1%) | 8 of 8 | |
| 6 |  GOOG Alphabet Inc | $37.1M | 3.8% | 109K | −470 (−0%) | 8 of 8 | |
| 7 |  GLW Corning Inc | $35.1M | 3.6% | 229K | −332 (−0%) | 8 of 8 | |
| 8 |  JNJ Johnson & Johnson | $31.7M | 3.3% | 120K | −259 (−0%) | 8 of 8 | |
| 9 |  XOM Exxon Mobil Corp | $27.2M | 2.8% | 167K | New position | 1 of 8 | |
| 10 |  FAST Fastenal Co | $25.6M | 2.6% | 517K | −10K (−2%) | 8 of 8 |
Positions at Sep 30, 2026, as reported. Change is against the fund's Q2 2026 filing; weight is the share of the fund's reported stocks.
Sold out
held in Q2 2026, gone in Q3 2026| Stock | Value last quarter | Shares sold |
|---|---|---|
XOM Exxon Mobil Corp | $23.5M | 172K |
 THRY Thryv Hldgs Inc | $728K | 185K |
 SO Southern Co | $221K | 2,307 |
 Q Qnity Electronics Inc | $214K | 1,309 |
 MS Morgan Stanley | $209K | 1,000 |
🔒 Free account: see all 7.
Reported value
last 8 quartersThe value of the US stocks the fund reported, at quarter end prices. It moves with the market as well as with buying and selling.
Filings for Q3 2026
straight from the SEC| Filed | Form | Quarter | |
|---|---|---|---|
| Oct 22, 2026 | 13F-HR | Q3 2026 | SEC filing ↗ |
Other superinvestors
All hedge fund holdings →Parthenon 13F FAQ
What does Parthenon own?
Parthenon reported 129 stocks worth $967M in its 13F filing for Q3 2026, filed Oct 22, 2026. Its largest holdings are MSFT (12.1%), BRK.B (7.0%) and GOOGL (5.3%). The table above lists every position in the filing (the top 10 without an account).
What did Parthenon buy and sell in Q3 2026?
Compared with Q2 2026: 3 new positions, 24 added to, 41 trimmed and 7 sold out. New positions include XOM and CLBT. It sold all of XOM, THRY and SO.
When will Parthenon file its next 13F?
Holdings as of Dec 31, 2026 are due by Feb 15, 2027. The filing appears on this page within minutes of reaching the SEC.
How much is Parthenon's portfolio worth?
The Q3 2026 filing reports $967M in US stocks. That leaves out cash, bonds, short positions and most foreign holdings, so the fund's total assets are usually larger.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Holdings come from the fund's SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. The fund may have changed its positions since. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.