WINMILL & CO INC
Q4 2025 Form 13-F

ROCHESTER, NEW YORK
CIK 0000052234 · Institutional investment manager
Consolidated report · includes 1 manager since Q3 2019
$374.9M Reported Value Total
Reported value
$374.9M
Quarter over quarter
+3.6%
Holdings
56
Top-10 concentration
58.4%

Filing Structure

Reports holdings for

Key People

Named on the latest Form 13-F filing — not necessarily an owner
Russell Kamerman
Co-General Counsel

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Q4 2025 13F record

Q4 2025 13F filing summary

Q4 2025 Form 13F portfolio summary
Period of report December 31, 2025
Filed February 13, 2026
Form 13F-HR
Reported value $374.9M
Positions 56
Change in reported value -9.1%
New positions 5
Exited positions 4
Position turnover 15.0%
Top-10 concentration 58.4%

13F filings by quarter

Form 13F filings by quarter
Quarter Positions Value
Q2 2026 13F
Filed Aug 13, 2026
56 $451.7M
Q1 2026 13F
Filed May 14, 2026
54 $346.6M
Q4 2025 13F
Filed Feb 13, 2026
56 $374.9M
Q3 2025 13F
Filed Nov 13, 2025
55 $412.4M
Q2 2025 13F
Filed Aug 1, 2025
55 $359.6M
Q1 2025 13F
Filed May 14, 2025
57 $329.0M
Q4 2024 13F
Filed Feb 13, 2025
55 $309.0M
Q3 2024 13F
Filed Nov 13, 2024
54 $297.2M
Q2 2024 13F
Filed Aug 13, 2024
58 $293.2M
Q1 2024 13F
Filed May 14, 2024
64 $351.3M
Q4 2023 13F
Filed Feb 13, 2024
68 $311.9M
Q3 2023 13F
Filed Nov 13, 2023
69 $273.0M
Q2 2023 13F
Filed Aug 11, 2023
74 $279.6M
Q1 2023 13F
Filed May 12, 2023
72 $268.2M
Q4 2022 13F
Filed Feb 13, 2023
75 $274.6M
Q3 2022 13F
Filed Nov 10, 2022
75 $252.6M
Q2 2022 13F
Filed Aug 12, 2022
75 $275.7M
Q1 2022 13F
Filed May 13, 2022
76 $328.6M
Q4 2021 13F
Filed Feb 11, 2022
78 $347.0M
Q3 2021 13F
Filed Nov 12, 2021
82 $312.7M

8 earlier quarters on file — choose one from the quarter menu above.

Top 20 holdings · Q4 2025

Largest Q4 2025 13F positions by reported value
# Holding Reported value % of portfolio
1 GOOGL Alphabet, Inc. $33.8M 9.02%
2 STLD STEEL DYNAMICS INC $28.6M 7.63%
3 AZO AUTOZONE INC $24.0M 6.39%
4 IBKR Interactive Brokers Group, Inc. $21.0M 5.61%
5 WSM WILLIAMS SONOMA INC $20.0M 5.33%
6 IAG IAMGOLD Corporation $19.6M 5.23%
7 MLI Mueller Industries, Inc. $19.4M 5.18%
8 LRCX Lam Research Corporation $18.7M 4.98%
9 LPLA LPL Financial Holdings, Inc. $17.5M 4.65%
10 NMIH NMI Holdings, Inc. $16.2M 4.31%
11 ESNT Essent Group Ltd. $14.6M 3.89%
12 PGR PROGRESSIVE CORP $14.6M 3.89%
13 DDS DILLARDS INC $13.1M 3.48%
14 URI UNITED RENTALS INC $12.5M 3.33%
15 HCA HCA Healthcare, Inc. $12.3M 3.29%
16 YOU Clear Secure, Inc. $10.1M 2.71%
17 DFIN Donnelley Financial Solutions, Inc. $9.1M 2.44%
18 NVR NVR INC $7.7M 2.07%
19 PYPL PayPal Holdings, Inc. $7.6M 2.02%
20 MA Mastercard, Inc. $5.7M 1.52%

Values as reported on the Q4 2025 Form 13F. Every position is in the holdings table below.

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