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13F-HR filed by Flagstone Financial Management

Flagstone Financial Management filed this 13F-HR for the quarter ended 2025-12-31, filed 2026-02-09, with 66 holding rows worth $389,914,968.

Accession
0001754960-26-000161
Filed
2026-02-09
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q4 2025

A holdings report, 66 entries on the cover page, a total value of $389,914,968 stated on the cover page (in dollars after the unit check, H1), rows summing to $389,914,968 with VALUE read as dollars as filed, 13F file number 028-23158. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
DIMENSIONAL ETF TRUST25434V401US EQUI MARK ETF1,486,333$110,241,286dollars as filed
ISHARES TR464288638ISHS 5-10YR INVT760,236$40,961,549dollars as filed
SPDW78463X889COM657,191$29,185,876dollars as filed
SPDR SERIES TRUST78464A474ST SHOR CORP ETF852,175$25,735,682dollars as filed
SPDR SERIES TRUST78464A672ST INTER ETF822,162$23,711,142dollars as filed
Vanguard Total International Bond Index Fund ETF92203J407SHS438,274$21,177,385dollars as filed
Avantis US Small Cap Value ETF025072877SHS191,469$19,526,044dollars as filed
DIMENSIONAL ETF TRUST25434V732EMERGING MKTS CO492,792$16,301,562dollars as filed
Avantis US Equity ETF025072885SHS133,728$14,948,071dollars as filed
Avantis International Small Cap Val ETF025072802SHS154,223$14,492,336dollars as filed
Vanguard Real Estate922908553SHS112,150$9,924,110dollars as filed
Avantis Emerging Markets Equity ETF025072604SHS94,704$7,294,082dollars as filed
Berkshire Hathaway Inc084670702COM12,189$6,126,808dollars as filed
PIMCO ETF TR72201R866INTER MUN BD ACT115,713$6,064,499dollars as filed
Avantis International Equity ETF025072703SHS52,904$4,355,011dollars as filed
ISHARES TR464288414NATIONAL MUN ETF29,842$3,196,388dollars as filed
Apple Inc037833100COM11,583$3,148,906dollars as filed
Microsoft Corp594918104COM5,155$2,493,062dollars as filed
DIMENSIONAL ETF TRUST25434V716US SUSTAINABILTY51,893$2,253,713dollars as filed
ISHARES TR46435G243COM86,842$2,191,892dollars as filed
SPDR Portfolio S&P 1500 Composite Stock Market ETF78464A805SHS25,023$2,064,400dollars as filed
USBANCORPDEL902973304COM NEW24,526$1,308,718dollars as filed
AMERICAN CENTY ETF TR025072356REAL ESTATE ETF28,087$1,222,635dollars as filed
JPMorgan Chase & Co46625H100COM3,542$1,141,143dollars as filed
Wells Fargo & Company949746101COM11,846$1,104,032dollars as filed
DIMENSIONAL ETF TRUST25434V815US SMALL CAP ETF32,265$1,061,198dollars as filed
DIMENSIONAL ETF TRUST25434V302EMGR CRE EQT MNG31,663$1,031,256dollars as filed
NVIDIA Corp67066G104COM5,037$939,472dollars as filed
DIMENSIONAL ETF TRUST25434V674GLOBAL SUSTAINA17,887$926,535dollars as filed
Alphabet Inc. Reg. Shares C02079K107COM2,877$902,675dollars as filed
DIMENSIONAL ETF TRUST25434V690INTERNATIONAL19,147$820,360dollars as filed
EXXON MOBIL CORP30231G102COM6,680$803,912dollars as filed
BERKSHIRE HATHAWAY INC DEL084670108CL A1$754,800dollars as filed
iShares Russell Midcap ETF464287499SHS7,823$753,120dollars as filed
Vanguard Dividend Appreciation ETF921908844SHS3,331$732,038dollars as filed
VTI922908769COM2,088$699,875dollars as filed
MasterCard, Inc57636Q104COM1,090$622,259dollars as filed
Vanguard Intermediate-Term Treasury ETF92206C706SHS10,029$601,038dollars as filed
MARKELGROUPINC570535104STOK254$546,012dollars as filed
DIMENSIONAL ETF TRUST25434V682EMER MARK SU ETF12,611$523,090dollars as filed
DIMENSIONAL ETF TRUST25434V823US REAL ESTA ETF21,166$484,715dollars as filed
Deere & Company244199105COM1,032$480,543dollars as filed
iShares Russell 2000 ETF464287655SHS1,758$432,750dollars as filed
SPDR SERIES TRUST78464A375ST INTER BD ETF11,531$389,863dollars as filed
Dimensional International Value ETF25434V807SHS7,651$381,784dollars as filed
Johnson & Johnson478160104COM1,811$374,777dollars as filed
EQUITY LIFESTYLE PROPERTIES COM29472R108REIT6,065$367,600dollars as filed
Bank of America Corp060505104COM6,436$353,958dollars as filed
INVESCO QQQ TR46090E103COM552$339,099dollars as filed
Amazon.com, Inc023135106COM1,469$339,074dollars as filed
Alphabet Inc. Reg. Shares A02079K305COM987$308,870dollars as filed
Walmart Inc.931142103COM2,745$305,767dollars as filed
BOSTON OMAHA CORP CL A101044105COMMON STOCK24,215$299,540dollars as filed
PepsiCo,Inc.713448108COM2,000$287,057dollars as filed
Financial Select Sector SPDR Fund81369Y605SHS5,227$286,278dollars as filed
ROCKWELL AUTOMATION INC COM773903109Stock681$264,957dollars as filed
Union Pacific Corporation907818108COM1,093$252,945dollars as filed
Oracle Corporation68389X105COM1,277$248,900dollars as filed
DIMENSIONAL ETF TRUST25434V609US TARGETED VLU4,113$244,888dollars as filed
ISHARES TR4642886613 7 YR TREAS BD2,042$243,713dollars as filed
SHOPIFY INC82509L107CL A SUB VTG SHS1,480$238,236dollars as filed
SPY78462F103SHS337$230,114dollars as filed
Vanguard FTSE Developed Markets ETF921943858SHS3,596$224,642dollars as filed
Technology Select Sector SPDR Fund81369Y803SHS1,522$219,122dollars as filed
iShares Core MSCI EAFE ETF46432F842SHS2,418$216,314dollars as filed
Eaton Corp. PlcG29183103COM664$211,490dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0001754960-26-000161this filing2026-02-09acceptance time not in the bulk data set