SEC Form 13F

WINMILL & CO. INC 13F Holdings

Inspect WINMILL & CO. INC's 2026-06-30 SEC 13F positions, public filing date, amendments and original receipt.

As of 2026-08-14T03:59:59.999Z

Report period
2026-06-30
Publicly available
2026-08-14
Reported value
$451,652,565
Positions
63

Disclosed positions

Lam Research CorporationLRCXCOM NEW$47,232,970109,000SHNone
Alphabet, Inc.GOOGLCAP STK CL A$38,631,697108,100SHNone
Steel Dynamics, Inc.STLDCOM$38,526,334167,900SHNone
Interactive Brokers Group, Inc.IBKRCOM CL A$28,479,488327,200SHNone
Williams-Sonoma, Inc.WSMCOM$25,874,100111,000SHNone
Mueller Industries, Inc.MLICOM$20,809,590169,280SHNone
IAMGOLD CorporationIAGCOM$18,849,6001,190,000SHNone
United Rentals, Inc.URICOM$17,259,57915,235SHNone
Progressive Corporation (The)PGRCOM$17,206,21578,765SHNone
NMI Holdings, Inc.NMIHCOM$16,275,543396,095SHNone
Clear Secure, Inc.YOUCOM CL A$16,113,493289,135SHNone
Microsoft CorporationMSFTCOM$14,547,78039,000SHNone
Essent Group Ltd.ESNTCOM$13,788,060214,500SHNone
LPL Financial Holdings, Inc.LPLACOM$13,098,12046,500SHNone
Qualys, Inc.QLYSCOM$12,187,25188,641SHNone
Dillard's, Inc.DDSCL A$11,250,06221,290SHNone
Nutex Health, Inc.NUTXCOM$11,167,66265,350SHNone
Ameriprise Financial, Inc.AMPCOM$10,088,13221,990SHNone
Duolingo, Inc.DUOLCL A COM$9,955,21186,552SHNone
White Mountains Insurance Group Ltd.WTMCOM$9,952,2724,800SHNone
NVR, Inc.NVRCOM$7,120,0031,045SHNone
GoDaddy, Inc.GDDYCL A$6,977,13682,200SHNone
Alarm.com Holdings, Inc.ALRMCOM$5,891,392126,100SHNone
UnitedHealth Group, Inc.UNHCOM$5,611,00513,500SHNone
Mastercard, Inc.MACL A$5,136,00010,000SHNone
SSR Mining, Inc.SSRMCOM$2,686,60095,000SHNone
JPMorgan Chase & CompanyJPMCOM$2,225,8446,800SHNone
Aura Minerals, Inc.AUGOSHS NEW$2,203,25035,000SHNone
Wheaton Precious Metals CorporationWPMCOM$1,875,74416,700SHNone
B2Gold CorporationBTGCOM$1,776,500475,000SHNone
McEwen Mining, Inc.MUXCOM NEW$1,767,67597,500SHNone
Royal Gold, Inc.RGLDCOM$1,676,7248,400SHNone
Kinross Gold CorporationKGCCOM$1,617,97068,500SHNone
GLOBAL SELF STORAGE INC.SELFCOM$1,591,692303,758SHNone
GLOBAL SELF STORAGE INCSELFCOM$1,481,568282,742SHNone
EXTRA SPACE STORAGE INCEXRCOM$1,456,92310,027SHNone
Berkshire Hathaway, Inc.BRK.BCL B NEW$1,250,9752,500SHNone
SPDR Gold SharesGLDGOLD SHS$1,211,9703,290SHNone
MediaAlpha, Inc.MAXCL A$818,33265,102SHNone
iShares Silver TrustSLVISHARES$805,79315,070SHNone
EverQuote, Inc.EVERCOM CL A$770,79632,400SHNone
Meta Platforms, Inc.METACL A$647,7841,150SHNone
NerdWallet, Inc.NRDSCOM CL A$647,50070,000SHNone
CUBESMARTCUBECOM$556,78014,000SHNone
PUBLIC STORAGEPSACOM$541,1271,700SHNone
Build-A-Bear Workshop, Inc.BBWCOM$505,06516,500SHNone
MICROSOFT CORPMSFTCOM$289,091775SHNone
PROGRESSIVE CORPPGRCOM$218,4501,000SHNone
ALPHABET INCGOOGCAP STK CL C$205,130574SHNone
UNITED RENTALS INCURICOM$197,123174SHNone

Largest 50 positions by reported value; the filing may contain more positions.

How amendments affect these holdings

This view uses 1 effective filing version(s). A restatement replaces the previous book; a new-holdings amendment adds positions. 2 positions lack a resolved ticker and 0 positions are put or call entries.

A 13F is a delayed quarterly snapshot of disclosed holdings. It is not a complete trade ledger and does not reveal every position in a manager's portfolio. Option values refer to the reported underlying position rather than a traded option premium.

Quarter end and public filing date

Use the filing's public availability date when constructing a historical observation. The quarter-end report period is earlier and cannot be substituted for when the public learned the holdings.