Largest positions
| Issuer | Class | Value | Share |
|---|---|---|---|
| Dimensional ETF TrustUS EQUI MARK ETF | US EQUI MARK ETF | $127M | 28.5% |
| iShares TRISHS 5-10YR INVT | ISHS 5-10YR INVT | $44.8M | 10.0% |
| SPDR Index Shs FdsST STR PO EX ETF | ST STR PO EX ETF | $33.4M | 7.5% |
| SPDR Series TrustST SHOR CORP ETF | ST SHOR CORP ETF | $28.2M | 6.3% |
| SPDR Series TrustST INTER ETF | ST INTER ETF | $25.7M | 5.7% |
| American Centy ETF TRUS SML CP VALU | US SML CP VALU | $24.4M | 5.4% |
| Vanguard Charlotte FdsTOTAL INT BD ETF | TOTAL INT BD ETF | $24M | 5.4% |
| Dimensional ETF TrustEMERGING MKTS CO | EMERGING MKTS CO | $19.4M | 4.3% |
| American Centy ETF TRUS EQT ETF | US EQT ETF | $16.9M | 3.8% |
| American Centy ETF TRINTL SMCP VLU | INTL SMCP VLU | $15.3M | 3.4% |
| Vanguard Index FdsREAL ESTATE ETF | REAL ESTATE ETF | $11.7M | 2.6% |
| Pimco ETF TRINTER MUN BD ACT | INTER MUN BD ACT | $9.88M | 2.2% |
| American Centy ETF TRAVANTIS EMGMKT | AVANTIS EMGMKT | $8.49M | 1.9% |
| Berkshire Hathaway Inc. DelCL B NEW | CL B NEW | $6.05M | 1.4% |
| American Centy ETF TRINTL EQT ETF | INTL EQT ETF | $4.53M | 1.0% |
| iShares TRNATIONAL MUN ETF | NATIONAL MUN ETF | $3.36M | 0.8% |
| Apple Inc.COM | COM | $3.32M | 0.7% |
| Dimensional ETF TrustUS SUSTAINABILTY | US SUSTAINABILTY | $2.6M | 0.6% |
| SPDR Series TrustST STR PR SP1500 | ST STR PR SP1500 | $2.27M | 0.5% |
| iShares TRESG AWRE 1 5 YR | ESG AWRE 1 5 YR | $2.25M | 0.5% |
| JPMORGAN Chase & COCOM | COM | $2.19M | 0.5% |
| Microsoft Corp.COM | COM | $1.9M | 0.4% |
| US BancorpCOM NEW | COM NEW | $1.43M | 0.3% |
| Dimensional ETF TrustUS SMALL CAP ETF | US SMALL CAP ETF | $1.37M | 0.3% |
| American Centy ETF TRREAL ESTATE ETF | REAL ESTATE ETF | $1.37M | 0.3% |
| Dimensional ETF TrustEMGR CRE EQT MNG | EMGR CRE EQT MNG | $1.26M | 0.3% |
| Nvidia CorporationCOM | COM | $1.01M | 0.2% |
| Alphabet Inc.CAP STK CL C | CAP STK CL C | $972K | 0.2% |
| Dimensional ETF TrustGLOBAL SUSTAINA | GLOBAL SUSTAINA | $901K | 0.2% |
| Exxon Mobil Corp.COM | COM | $893K | 0.2% |
| Wells Fargo & COCOM | COM | $888K | 0.2% |
| Dimensional ETF TrustINTERNATIONAL | INTERNATIONAL | $886K | 0.2% |
| iShares TRRUS MID CAP ETF | RUS MID CAP ETF | $863K | 0.2% |
| Vanguard Index FdsTOTAL STK MKT | TOTAL STK MKT | $765K | 0.2% |
| Vanguard Specialized FundsDIV APP ETF | DIV APP ETF | $755K | 0.2% |
| Berkshire Hathaway Inc. DelCL A | CL A | $749K | 0.2% |
| Deere & COCOM | COM | $655K | 0.1% |
| Vanguard Scottsdale FdsINTER TERM TREAS | INTER TERM TREAS | $626K | 0.1% |
| Amazon Com Inc.COM | COM | $610K | 0.1% |
| Mastercard IncorporatedCL A | CL A | $586K | 0.1% |
| Dimensional ETF TrustEMER MARK SU ETF | EMER MARK SU ETF | $564K | 0.1% |
| Markel Group Inc.COM | COM | $551K | 0.1% |
| iShares TRRUSSELL 2000 ETF | RUSSELL 2000 ETF | $528K | 0.1% |
| Johnson & JohnsonCOM | COM | $484K | 0.1% |
| Oracle Corp.COM | COM | $480K | 0.1% |
| Dimensional ETF TrustUS REAL ESTA ETF | US REAL ESTA ETF | $471K | 0.1% |
| Pepsico Inc.COM | COM | $460K | 0.1% |
| Cisco Sys Inc.COM | COM | $417K | 0.1% |
| Invesco Qqq TRUNIT SER 1 | UNIT SER 1 | $386K | 0.1% |
| SPDR Series TrustST INTER BD ETF | ST INTER BD ETF | $386K | 0.1% |
Dimensional ETF TrustUS EQUI MARK ETF$127M
- Class
- US EQUI MARK ETF
- Share
- 28.5%
iShares TRISHS 5-10YR INVT$44.8M
- Class
- ISHS 5-10YR INVT
- Share
- 10.0%
SPDR Index Shs FdsST STR PO EX ETF$33.4M
- Class
- ST STR PO EX ETF
- Share
- 7.5%
SPDR Series TrustST SHOR CORP ETF$28.2M
- Class
- ST SHOR CORP ETF
- Share
- 6.3%
SPDR Series TrustST INTER ETF$25.7M
- Class
- ST INTER ETF
- Share
- 5.7%
American Centy ETF TRUS SML CP VALU$24.4M
- Class
- US SML CP VALU
- Share
- 5.4%
Vanguard Charlotte FdsTOTAL INT BD ETF$24M
- Class
- TOTAL INT BD ETF
- Share
- 5.4%
Dimensional ETF TrustEMERGING MKTS CO$19.4M
- Class
- EMERGING MKTS CO
- Share
- 4.3%
American Centy ETF TRUS EQT ETF$16.9M
- Class
- US EQT ETF
- Share
- 3.8%
American Centy ETF TRINTL SMCP VLU$15.3M
- Class
- INTL SMCP VLU
- Share
- 3.4%
Vanguard Index FdsREAL ESTATE ETF$11.7M
- Class
- REAL ESTATE ETF
- Share
- 2.6%
Pimco ETF TRINTER MUN BD ACT$9.88M
- Class
- INTER MUN BD ACT
- Share
- 2.2%
American Centy ETF TRAVANTIS EMGMKT$8.49M
- Class
- AVANTIS EMGMKT
- Share
- 1.9%
Berkshire Hathaway Inc. DelCL B NEW$6.05M
- Class
- CL B NEW
- Share
- 1.4%
American Centy ETF TRINTL EQT ETF$4.53M
- Class
- INTL EQT ETF
- Share
- 1.0%
iShares TRNATIONAL MUN ETF$3.36M
- Class
- NATIONAL MUN ETF
- Share
- 0.8%
Apple Inc.COM$3.32M
- Class
- COM
- Share
- 0.7%
Dimensional ETF TrustUS SUSTAINABILTY$2.6M
- Class
- US SUSTAINABILTY
- Share
- 0.6%
SPDR Series TrustST STR PR SP1500$2.27M
- Class
- ST STR PR SP1500
- Share
- 0.5%
iShares TRESG AWRE 1 5 YR$2.25M
- Class
- ESG AWRE 1 5 YR
- Share
- 0.5%
JPMORGAN Chase & COCOM$2.19M
- Class
- COM
- Share
- 0.5%
Microsoft Corp.COM$1.9M
- Class
- COM
- Share
- 0.4%
US BancorpCOM NEW$1.43M
- Class
- COM NEW
- Share
- 0.3%
Dimensional ETF TrustUS SMALL CAP ETF$1.37M
- Class
- US SMALL CAP ETF
- Share
- 0.3%
American Centy ETF TRREAL ESTATE ETF$1.37M
- Class
- REAL ESTATE ETF
- Share
- 0.3%
Dimensional ETF TrustEMGR CRE EQT MNG$1.26M
- Class
- EMGR CRE EQT MNG
- Share
- 0.3%
Nvidia CorporationCOM$1.01M
- Class
- COM
- Share
- 0.2%
Alphabet Inc.CAP STK CL C$972K
- Class
- CAP STK CL C
- Share
- 0.2%
Dimensional ETF TrustGLOBAL SUSTAINA$901K
- Class
- GLOBAL SUSTAINA
- Share
- 0.2%
Exxon Mobil Corp.COM$893K
- Class
- COM
- Share
- 0.2%
Wells Fargo & COCOM$888K
- Class
- COM
- Share
- 0.2%
Dimensional ETF TrustINTERNATIONAL$886K
- Class
- INTERNATIONAL
- Share
- 0.2%
iShares TRRUS MID CAP ETF$863K
- Class
- RUS MID CAP ETF
- Share
- 0.2%
Vanguard Index FdsTOTAL STK MKT$765K
- Class
- TOTAL STK MKT
- Share
- 0.2%
Vanguard Specialized FundsDIV APP ETF$755K
- Class
- DIV APP ETF
- Share
- 0.2%
Berkshire Hathaway Inc. DelCL A$749K
- Class
- CL A
- Share
- 0.2%
Deere & COCOM$655K
- Class
- COM
- Share
- 0.1%
Vanguard Scottsdale FdsINTER TERM TREAS$626K
- Class
- INTER TERM TREAS
- Share
- 0.1%
Amazon Com Inc.COM$610K
- Class
- COM
- Share
- 0.1%
Mastercard IncorporatedCL A$586K
- Class
- CL A
- Share
- 0.1%
Dimensional ETF TrustEMER MARK SU ETF$564K
- Class
- EMER MARK SU ETF
- Share
- 0.1%
Markel Group Inc.COM$551K
- Class
- COM
- Share
- 0.1%
iShares TRRUSSELL 2000 ETF$528K
- Class
- RUSSELL 2000 ETF
- Share
- 0.1%
Johnson & JohnsonCOM$484K
- Class
- COM
- Share
- 0.1%
Oracle Corp.COM$480K
- Class
- COM
- Share
- 0.1%
Dimensional ETF TrustUS REAL ESTA ETF$471K
- Class
- US REAL ESTA ETF
- Share
- 0.1%
Pepsico Inc.COM$460K
- Class
- COM
- Share
- 0.1%
Cisco Sys Inc.COM$417K
- Class
- COM
- Share
- 0.1%
Invesco Qqq TRUNIT SER 1$386K
- Class
- UNIT SER 1
- Share
- 0.1%
SPDR Series TrustST INTER BD ETF$386K
- Class
- ST INTER BD ETF
- Share
- 0.1%
The share class is shown on a wider screen.
The 50 largest of 77 positions by value, with holdings of the same security combined. The 77 largest are in this firm's machine-readable record. Share counts and quarter-on-quarter changes for each position are on EDGAR. View the full information table on EDGAR
This filing
- Form
- 13F-HR
- CIK
- 1968890
- File number
- 028-23158
- Options
- 0 call, 0 put
- In the 25 largest
- 94.4%
- Prior quarter
- $403M at 31 March 2026
- Positions opened
- 6
- Positions closed
- 0
Common questions
What are Flagstone Financial Management’s 13F holdings worth?
$447 million across 77 positions for the quarter ended 30 June 2026.
What is Flagstone Financial Management’s largest 13F holding?
DIMENSIONAL ETF TRUST (US EQUI MARK ETF) was the largest position at $127 million, or 28.5% of reported 13F value, as of 30 June 2026.
How concentrated is Flagstone Financial Management’s 13F portfolio?
The ten largest positions accounted for 80.4% of reported value and the twenty-five largest for 94.4%, across 77 positions as of 30 June 2026.
Does Form 13F show everything Flagstone Financial Management manages?
No. Form 13F covers only long positions in exchange-traded securities over which the manager has investment discretion, valued at quarter end. It excludes cash, most bonds, private funds, and any assets the firm does not have discretion over, so it is neither the firm's total assets nor any individual client's portfolio.
How often does Flagstone Financial Management file its 13F?
Every quarter. Managers file within 45 days of each quarter's end, so the figures are a snapshot that changes between filings. This page shows the quarter ended 30 June 2026.
Answered from this filing and the prior quarter's.