Winmill & Co. Inc reported 45 positions worth $449.88M for the quarter ended Jun 30, 2026, up 30.6% on the prior quarter. It opened 7 new positions, added to 1, trimmed 1 and exited 5. Its largest holding is Lam Research Corp at 10.5% of the portfolio.
Reported 13F market value at each quarter end. A change mixes trading with price moves in the positions held.
Dollar value of shares bought and sold each quarter, at that quarter’s price. It counts trading only, not price changes.
How many positions were opened, added to, trimmed or closed each quarter.
Share of reported value in each sector at every quarter end.
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| MSFT Microsoft Corp | +39.8K | – | $14.84M | 3.3% |
| AMP Ameriprise Financial Inc | +22.0K | – | $10.09M | 2.24% |
| DUOL Duolingo, Inc. | +86.6K | – | $9.96M | 2.21% |
| WTM White Mountains Insurance Group Ltd | +4,800 | – | $9.95M | 2.21% |
| GDDY GoDaddy Inc. | +82.2K | – | $6.98M | 1.55% |
| PGR Progressive Corp | +15.8K | +24.6% | $3.44M | 3.87% |
| MAX MediaAlpha, Inc. | +65.1K | – | $818.33K | 0.182% |
| NRDS Nerdwallet, Inc. | +70.0K | – | $647.50K | 0.144% |
| Holding | Change | Change % | Trade Value | Weight |
|---|---|---|---|---|
| HCA HCA Healthcare, Inc. | -26.5K | -100.0% | $12.52M | Exited |
| AEM Agnico Eagle Mines Ltd | -15.0K | -100.0% | $3.04M | Exited |
| ELV Elevance Health, Inc. | -9,600 | -100.0% | $2.81M | Exited |
| NEM NEWMONT Corp | -20.3K | -100.0% | $2.19M | Exited |
| TFPM Triple Flag Precious Metals Corp. | -54.0K | -100.0% | $1.87M | Exited |
| WSM Williams Sonoma Inc | -994 | -0.9% | $231.70K | 5.75% |
| Holding | Shares | Trade Value | Weight |
|---|---|---|---|
| MSFT Microsoft Corp | +39.8K | $14.84M | 3.3% |
| AMP Ameriprise Financial Inc | +22.0K | $10.09M | 2.24% |
| DUOL Duolingo, Inc. | +86.6K | $9.96M | 2.21% |
| WTM White Mountains Insurance Group Ltd | +4,800 | $9.95M | 2.21% |
| GDDY GoDaddy Inc. | +82.2K | $6.98M | 1.55% |
| MAX MediaAlpha, Inc. | +65.1K | $818.33K | 0.182% |
| NRDS Nerdwallet, Inc. | +70.0K | $647.50K | 0.144% |
| # | Activity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | LRCX Lam Research Corp | Technology | 109.0K | $47.23M | 10.5% | 0 | 0.0% | Unchanged | 0.01% |
| 2 | STLD Steel Dynamics Inc | Basic Materials | 168.7K | $38.72M | 8.61% | 0 | 0.0% | Unchanged | 0.12% |
| 3 | GOOGL Alphabet Inc. | Technology | 108.1K | $38.63M | 8.59% | 0 | 0.0% | Unchanged | 0% |
| 4 | IBKR Interactive Brokers Group, Inc. | Financial Services | 327.2K | $28.48M | 6.33% | 0 | 0.0% | Unchanged | 0.07% |
| 5 | WSM Williams Sonoma Inc | Consumer Discretionary | 111.0K | $25.87M | 5.75% | -994 | -0.9% | Reduced | 0.09% |
| 6 | MLI Mueller Industries Inc | Industrials | 338.6K | $20.81M | 4.63% | 0 | 0.0% | Unchanged | 0.15% |
| 7 | IAG Iamgold Corp | Basic Materials | 1.19M | $18.85M | 4.19% | 0 | 0.0% | Unchanged | 0.21% |
| 8 | URI United Rentals, Inc. | Industrials | 15.4K | $17.46M | 3.88% | 0 | 0.0% | Unchanged | 0.02% |
| 9 | PGR Progressive Corp | Financial Services | 79.8K | $17.42M | 3.87% | +15.8K | +24.6% | Added | 0.01% |
| 10 | NMIH NMI Holdings, Inc. | Financial Services | 396.1K | $16.28M | 3.62% | 0 | 0.0% | Unchanged | 0.52% |
| 11 | YOU Clear Secure, Inc. | Technology | 289.1K | $16.11M | 3.58% | 0 | 0.0% | Unchanged | 0.28% |
| 12 | MSFT Microsoft Corp | Technology | 39.8K | $14.84M | 3.3% | +39.8K | – | New | 0% |
| 13 | ESNT Essent Group Ltd. | Financial Services | 214.5K | $13.79M | 3.06% | 0 | 0.0% | Unchanged | 0.24% |
| 14 | LPLA LPL Financial Holdings Inc. | Financial Services | 46.5K | $13.10M | 2.91% | 0 | 0.0% | Unchanged | 0.06% |
| 15 | QLYS Qualys, Inc. | Technology | 88.6K | $12.19M | 2.71% | 0 | 0.0% | Unchanged | 0.25% |
Tip. Select a row to see that position’s full history at Winmill.
As of its Q2 2026 13F filing, Winmill & Co. Inc’s five largest positions were Lam Research Corp (LRCX) at 10.5%, Steel Dynamics Inc (STLD) at 8.6%, Alphabet Inc. (GOOGL) at 8.6%, Interactive Brokers Group, Inc. (IBKR) at 6.3%, Williams Sonoma Inc (WSM) at 5.8% of the reported portfolio.
Winmill & Co. Inc reported a 13F portfolio worth $449.88M across 45 positions for Q2 2026. That is up 30.6% from the previous quarter.
Its largest purchases by value were Microsoft Corp ($14.84M), Ameriprise Financial Inc ($10.09M), Duolingo, Inc. ($9.96M). It opened 7 new positions.
Its largest sales by value were HCA Healthcare, Inc. ($12.52M), Agnico Eagle Mines Ltd ($3.04M), Elevance Health, Inc. ($2.81M). It exited 5 positions entirely.
From the Form 13F-HR reports Winmill & Co. Inc files with the SEC each quarter, within 45 days of quarter end. A 13F lists long positions in US-listed equities and options; it excludes short positions, cash, bonds and most non-US holdings.
13F data reflects long positions in US-listed equities and options as reported to the SEC up to 45 days after quarter end. It excludes short positions, cash, bonds and most non-US securities, so it is not a complete picture of a manager’s assets.