Winmill & Co. INC 13F holdings
Winmill & Co. INC reported 55 positions with a total reported value of $451.7M as of 2026-06-30, in its 13F for Q2 2026, filed 2026-08-13. Top holdings by reported value: LRCX Lam Research Corporation (10.5%), GOOGL ALPHABET INC (8.6%), STLD STEEL DYNAMICS INC (8.6%), IBKR Interactive Brokers Group, Inc. (6.3%), WSM Williams-Sonoma, Inc. (5.7%). Against 2026-03-31 it opened 7 new positions and exited 5. Next 13F due by 2026-11-14, the legal deadline 45 days after the quarter ending 2026-09-30.
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Top holdings
25 largest of 55 positions · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| LRCX Lam Research Corporation | 109,000 | $47.2M | 10.5% |
| GOOGL ALPHABET INC | 108,674 | $38.8M | 8.6% |
| STLD STEEL DYNAMICS INC | 168,747 | $38.7M | 8.6% |
| IBKR Interactive Brokers Group, Inc. | 327,200 | $28.5M | 6.3% |
| WSM Williams-Sonoma, Inc. | 111,000 | $25.9M | 5.7% |
| Mueller Industries, Inc. | 169,280 | $20.8M | 4.6% |
| IAG IAMGOLD Corporation | 1,190,000 | $18.8M | 4.2% |
| URI UNITED RENTALS INC | 15,409 | $17.5M | 3.9% |
| PGR PROGRESSIVE CORP | 79,765 | $17.4M | 3.9% |
| NMIH NMI Holdings, Inc. | 396,095 | $16.3M | 3.6% |
| YOU Clear Secure, Inc. | 289,135 | $16.1M | 3.6% |
| MSFT MICROSOFT CORP | 39,775 | $14.8M | 3.3% |
| ESNT Essent Group Ltd. | 214,500 | $13.8M | 3.1% |
| LPL Financial Holdings, Inc. | 46,500 | $13.1M | 2.9% |
| QLYS Qualys, Inc. | 88,641 | $12.2M | 2.7% |
| DDS DILLARDS INC | 21,538 | $11.4M | 2.5% |
| NUTX Nutex Health, Inc. | 65,350 | $11.2M | 2.5% |
| Ameriprise Financial, Inc. | 21,990 | $10.1M | 2.2% |
| DUOL Duolingo, Inc. | 86,552 | $10.0M | 2.2% |
| White Mountains Insurance Group Ltd. | 4,800 | $10.0M | 2.2% |
| NVR NVR INC | 1,062 | $7.2M | 1.6% |
| GDDY GoDaddy, Inc. | 82,200 | $7.0M | 1.5% |
| ALRM Alarm.com Holdings, Inc. | 126,100 | $5.9M | 1.3% |
| UNH UnitedHealth Group, Inc. | 13,500 | $5.6M | 1.2% |
| MA Mastercard, Inc. | 10,000 | $5.1M | 1.1% |
SEC FORM 13F · Q2 2026 · VALUES AS REPORTED, NOT PRICES
New positions this quarter
Held at 2026-06-30, not at 2026-03-31 · 7 in all · reported value as of 2026-06-30
| Holding | Shares | Reported value | % of portfolio |
|---|---|---|---|
| MSFT MICROSOFT CORP | 39,775 | $14.8M | 3.3% |
| Ameriprise Financial, Inc. | 21,990 | $10.1M | 2.2% |
| DUOL Duolingo, Inc. | 86,552 | $10.0M | 2.2% |
| White Mountains Insurance Group Ltd. | 4,800 | $10.0M | 2.2% |
| GDDY GoDaddy, Inc. | 82,200 | $7.0M | 1.5% |
| MAX MediaAlpha, Inc. | 65,102 | $818.3K | 0.2% |
| NRDS NerdWallet, Inc. | 70,000 | $647.5K | 0.1% |
Sold out
Held at 2026-03-31, gone by 2026-06-30 · 5 in all · reported value as of 2026-03-31
Biggest increases and decreases
Positions held at both quarter ends, by change in shares · reported value as of 2026-06-30
Increases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| PGR PROGRESSIVE CORP | 64,000 | 79,765 | +24.6% | $17.4M |
Decreases
| Holding | Shares 2026-03-31 | Shares 2026-06-30 | Change | Reported value |
|---|---|---|---|---|
| WSM Williams-Sonoma, Inc. | 111,994 | 111,000 | -0.9% | $25.9M |
CIK 52234 · 13F FILINGS ON EDGAR · INFORMATIONAL ONLY
