# EDGAR Filing Document

**Accession Number:** 0001708872
**File Stem:** 0001580642-26-002557
**Filing Date:** 2026-4
**Character Count:** 11135
**Document Hash:** 938588ddf1e17eb85f962959fbfd7f13
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001580642-26-002557.hdr.sgml**: 20260417

**ACCESSION NUMBER**: 0001580642-26-002557

**CONFORMED SUBMISSION TYPE**: 13F-HR

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260417

**DATE AS OF CHANGE**: 20260417

**EFFECTIVENESS DATE**: 20260417

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Blankinship & Foster, LLC
- **CENTRAL INDEX KEY:** 0001708872

**ORGANIZATION NAME:**
- **EIN:** 330357690
- **STATE OF INCORPORATION:** CA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-18089
- **FILM NUMBER:** 26871462

**BUSINESS ADDRESS:**
- **STREET 1:** 420 STEVENS AVE
- **STREET 2:** STE. 250
- **CITY:** SOLANA BEACH
- **STATE:** CA
- **ZIP:** 92075
- **BUSINESS PHONE:** 8587555166

**MAIL ADDRESS:**
- **STREET 1:** 420 STEVENS AVE
- **STREET 2:** STE. 250
- **CITY:** SOLANA BEACH
- **STATE:** CA
- **ZIP:** 92075

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 03-31-2026

**Check here if Amendment** [ ] **Amendment Number:** 

**This Amendment (Check only one.):** [ ] is a restatement.

[ ] adds new holdings entries.

**Institutional Investment Manager Filing this Report:**

**Name:** Blankinship  Foster LLC<br>**Address:** 420 Stevens Ave<br>Ste. 250<br>Solana Beach, CA 92075

**Form 13F File Number:** 028-18089

The institutional investment manager filing this report and the person by whom it is signed hereby represent that the person signing the report is authorized to submit it, that all information contained herein is true, correct and complete, and that it is understood that all required items, statements, schedules, lists, and tables, are considered integral parts of this form.

**Person Signing this Report on Behalf of Reporting Manager:**

**Name:** Jon Beyrer<br>**Title:** Director/Wealth Manager; CCO<br>**Phone:** 858-755-5166

**Signature, Place, and Date of Signing:**

/s/ Jon Beyrer  Solana Beach, CA  04-16-2026<br>[Signature]  [City, State]  [Date]

**Report Type (Check only one.):**

[x] **13F HOLDINGS REPORT.** (Check here if all holdings of this reporting manager are reported in this report.)

[ ] **13F NOTICE.** (Check here if no holdings are reported in this report, and all holdings are reported by other reporting manager(s).)

[ ] **13F COMBINATION REPORT.** (Check here if a portion of the holdings for this reporting manager are reported in this report and a portion are reported by other reporting manager(s).)

### Form 13F Summary Page

**Report Summary:**

**Number of Other Included Managers:** 0

**Form 13F Information Table Entry Total:** 75

**Form 13F Information Table Value Total:** $452300969

      (round to nearest dollar)

**List of Other Included Managers:**

Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report.

[If there are no entries in this list, state “NONE” and omit the column headings and list entries.]

**NONE**

### FORM 13F INFORMATION TABLE

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | VOTING AUTHORITY | VOTING AUTHORITY | VOTING AUTHORITY |
| NAME OF ISSUER | TITLE OF CLASS | CUSIP | FIGI | VALUE (x$1000) | SHRS OR PRN AMT | SH/PRN | PUT/CALL | INVESTMENT DISCRETION | OTHER MANAGER | SOLE | SHARED | NONE |
| DIMENSIONAL ETF TRUST | US CORE EQT MKT | 25434V104 |  | 118326743 | 2622490 | SH |  | SOLE |  | 0 | 0 | 2622490 |
| VANGUARD INTL EQUITY INDEX F | ALLWRLD EX US | 922042775 |  | 49957551 | 665214 | SH |  | SOLE |  | 0 | 0 | 665214 |
| ISHARES TR | HDG MSCI EAFE | 46434V803 |  | 33532977 | 789104 | SH |  | SOLE |  | 0 | 0 | 789104 |
| VANGUARD INDEX FDS | MID CAP ETF | 922908629 |  | 32199723 | 112124 | SH |  | SOLE |  | 0 | 0 | 112124 |
| VANGUARD INDEX FDS | TOTAL STK MKT | 922908769 |  | 31490416 | 98159 | SH |  | SOLE |  | 0 | 0 | 98159 |
| VANGUARD INDEX FDS | GROWTH ETF | 922908736 |  | 29121326 | 66671 | SH |  | SOLE |  | 0 | 0 | 66671 |
| DBX ETF TR | XTRACK MSCI EAFE | 233051200 |  | 25767580 | 521611 | SH |  | SOLE |  | 0 | 0 | 521611 |
| VANGUARD WORLD FD | CONSUM STP ETF | 92204A207 |  | 18420825 | 82020 | SH |  | SOLE |  | 0 | 0 | 82020 |
| VANGUARD INTL EQUITY INDEX F | FTSE EMR MKT ETF | 922042858 |  | 17027503 | 315032 | SH |  | SOLE |  | 0 | 0 | 315032 |
| ISHARES TR | CORE US AGGBD ET | 464287226 |  | 10029448 | 101032 | SH |  | SOLE |  | 0 | 0 | 101032 |
| ISHARES TR | MSCI EAFE ETF | 464287465 |  | 8839322 | 91005 | SH |  | SOLE |  | 0 | 0 | 91005 |
| ISHARES TR | MBS ETF | 464288588 |  | 7835893 | 82527 | SH |  | SOLE |  | 0 | 0 | 82527 |
| APPLE INC | COM | 037833100 |  | 7426266 | 29261 | SH |  | SOLE |  | 0 | 0 | 29261 |
| STATE STR SPDR S 500 ETF T | TR UNIT | 78462F103 |  | 4717460 | 7254 | SH |  | SOLE |  | 0 | 0 | 7254 |
| BERKSHIRE HATHAWAY INC DEL | CL A | 084670108 |  | 3590700 | 5 | SH |  | SOLE |  | 0 | 0 | 5 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 3426759 | 7151 | SH |  | SOLE |  | 0 | 0 | 7151 |
| ABBVIE INC | COM | 00287Y109 |  | 3348911 | 15398 | SH |  | SOLE |  | 0 | 0 | 15398 |
| SCHWAB STRATEGIC TR | US MID-CAP ETF | 808524508 |  | 3115421 | 100627 | SH |  | SOLE |  | 0 | 0 | 100627 |
| VANGUARD INDEX FDS | LARGE CAP ETF | 922908637 |  | 2597242 | 8691 | SH |  | SOLE |  | 0 | 0 | 8691 |
| VANGUARD WHITEHALL FDS | HIGH DIV YLD | 921946406 |  | 2542877 | 17170 | SH |  | SOLE |  | 0 | 0 | 17170 |
| ALPHABET INC | CAP STK CL C | 02079K107 |  | 2512894 | 8760 | SH |  | SOLE |  | 0 | 0 | 8760 |
| ISHARES TR | RUS 1000 GRW ETF | 464287614 |  | 2383030 | 5589 | SH |  | SOLE |  | 0 | 0 | 5589 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 2231466 | 7760 | SH |  | SOLE |  | 0 | 0 | 7760 |
| SCHWAB STRATEGIC TR | EMRG MKTEQ ETF | 808524706 |  | 2107295 | 63954 | SH |  | SOLE |  | 0 | 0 | 63954 |
| ISHARES TR | CORE S MCP ETF | 464287507 |  | 1708986 | 25307 | SH |  | SOLE |  | 0 | 0 | 25307 |
| QUALCOMM INC | COM | 747525103 |  | 1692888 | 13146 | SH |  | SOLE |  | 0 | 0 | 13146 |
| VANGUARD STAR FDS | VG TL INTL STK F | 921909768 |  | 1388754 | 18010 | SH |  | SOLE |  | 0 | 0 | 18010 |
| ISHARES INC | CORE MSCI EMKT | 46434G103 |  | 1387195 | 19888 | SH |  | SOLE |  | 0 | 0 | 19888 |
| ABBOTT LABORATORIES | COM | 002824100 |  | 1236865 | 12047 | SH |  | SOLE |  | 0 | 0 | 12047 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 1136726 | 4650 | SH |  | SOLE |  | 0 | 0 | 4650 |
| MICROSOFT CORP | COM | 594918104 |  | 1102080 | 2977 | SH |  | SOLE |  | 0 | 0 | 2977 |
| ISHARES TR | S 500 GRWT ETF | 464287309 |  | 1042006 | 9212 | SH |  | SOLE |  | 0 | 0 | 9212 |
| CATERPILLAR INC | COM | 149123101 |  | 1010264 | 1426 | SH |  | SOLE |  | 0 | 0 | 1426 |
| PHILLIPS EDISON  CO INC | COMMON STOCK | 71844V201 |  | 956377 | 25558 | SH |  | SOLE |  | 0 | 0 | 25558 |
| ISHARES TR | 0-5YR HI YL CP | 46434V407 |  | 917680 | 21689 | SH |  | SOLE |  | 0 | 0 | 21689 |
| VANGUARD MUN BD FDS | TAX EXEMPT BD | 922907746 |  | 813872 | 16313 | SH |  | SOLE |  | 0 | 0 | 16313 |
| ISHARES TR | S 500 VAL ETF | 464287408 |  | 807438 | 3824 | SH |  | SOLE |  | 0 | 0 | 3824 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 768051 | 4527 | SH |  | SOLE |  | 0 | 0 | 4527 |
| AMAZON COM INC | COM | 023135106 |  | 734985 | 3529 | SH |  | SOLE |  | 0 | 0 | 3529 |
| NVIDIA CORPORATION | COM | 67066G104 |  | 663941 | 3807 | SH |  | SOLE |  | 0 | 0 | 3807 |
| COSTCO WHOLESALE CORPORATION | COM | 22160K105 |  | 648676 | 651 | SH |  | SOLE |  | 0 | 0 | 651 |
| ISHARES TR | CORE S ETF | 464287200 |  | 623501 | 955 | SH |  | SOLE |  | 0 | 0 | 955 |
| ISHARES TR | RUS 1000 ETF | 464287622 |  | 587113 | 1647 | SH |  | SOLE |  | 0 | 0 | 1647 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 |  | 547289 | 1397 | SH |  | SOLE |  | 0 | 0 | 1397 |
| SCHWAB STRATEGIC TR | US BRD MKT ETF | 808524102 |  | 519071 | 20680 | SH |  | SOLE |  | 0 | 0 | 20680 |
| KINDER MORGAN INC DEL | COM | 49456B101 |  | 504124 | 15035 | SH |  | SOLE |  | 0 | 0 | 15035 |
| ISHARES TR | US CONSM STAPLES | 464287812 |  | 483571 | 6905 | SH |  | SOLE |  | 0 | 0 | 6905 |
| ISHARES TR | 0-5 YR TIPS ETF | 46429B747 |  | 475785 | 4600 | SH |  | SOLE |  | 0 | 0 | 4600 |
| VANGUARD SPECIALIZED FUNDS | DIV APP ETF | 921908844 |  | 474454 | 2206 | SH |  | SOLE |  | 0 | 0 | 2206 |
| ISHARES TR | MSCI EAFE MIN VL | 46429B689 |  | 407360 | 4458 | SH |  | SOLE |  | 0 | 0 | 4458 |
| META PLATFORMS INC | CL A | 30303M102 |  | 390765 | 683 | SH |  | SOLE |  | 0 | 0 | 683 |
| VANGUARD WORLD FD | HEALTH CAR ETF | 92204A504 |  | 384760 | 1413 | SH |  | SOLE |  | 0 | 0 | 1413 |
| BRITISH AMERN TOB PLC | SPONSORED ADR | 110448107 |  | 339652 | 5809 | SH |  | SOLE |  | 0 | 0 | 5809 |
| ISHARES TR | RUSSELL 2000 ETF | 464287655 |  | 336040 | 1355 | SH |  | SOLE |  | 0 | 0 | 1355 |
| PHILIP MORRIS INTL INC | COM | 718172109 |  | 332333 | 2010 | SH |  | SOLE |  | 0 | 0 | 2010 |
| AT INC | COM | 00206R102 |  | 323181 | 11148 | SH |  | SOLE |  | 0 | 0 | 11148 |
| WALMART INC | COM | 931142103 |  | 315430 | 2538 | SH |  | SOLE |  | 0 | 0 | 2538 |
| INTERNATIONAL BUSINESS MACHS | COM | 459200101 |  | 315157 | 1300 | SH |  | SOLE |  | 0 | 0 | 1300 |
| VODAFONE GROUP PLC | SPONSORED ADR | 92857W308 |  | 314098 | 20912 | SH |  | SOLE |  | 0 | 0 | 20912 |
| PFIZER INC | COM | 717081103 |  | 304808 | 10855 | SH |  | SOLE |  | 0 | 0 | 10855 |
| ALTRIA GROUP INC | COM | 02209S103 |  | 290290 | 4399 | SH |  | SOLE |  | 0 | 0 | 4399 |
| VERIZON COMMUNICATIONS INC | COM | 92343V104 |  | 283680 | 5651 | SH |  | SOLE |  | 0 | 0 | 5651 |
| ISHARES TR | S MC 400VL ETF | 464287705 |  | 281298 | 2123 | SH |  | SOLE |  | 0 | 0 | 2123 |
| CHEVRON CORPORATION | COM | 166764100 |  | 274970 | 1329 | SH |  | SOLE |  | 0 | 0 | 1329 |
| SELECT SECTOR SPDR TR | STATE STREET TEC | 81369Y803 |  | 270850 | 2038 | SH |  | SOLE |  | 0 | 0 | 2038 |
| GSK PLC | SPONSORED ADR | 37733W204 |  | 266678 | 4832 | SH |  | SOLE |  | 0 | 0 | 4832 |
| BOEING CO | COM | 097023105 |  | 263505 | 1324 | SH |  | SOLE |  | 0 | 0 | 1324 |
| AMER STATES WTR CO | COM | 029899101 |  | 261909 | 3463 | SH |  | SOLE |  | 0 | 0 | 3463 |
| SUMMIT THERAPEUTICS INC | COM | 86627T108 |  | 242252 | 12777 | SH |  | SOLE |  | 0 | 0 | 12777 |
| ISHARES TR | CORE S US GWT | 464287671 |  | 233285 | 1504 | SH |  | SOLE |  | 0 | 0 | 1504 |
| VANGUARD INDEX FDS | VALUE ETF | 922908744 |  | 223864 | 1141 | SH |  | SOLE |  | 0 | 0 | 1141 |
| ISHARES TR | EXPND TEC SC ETF | 464287549 |  | 218888 | 1847 | SH |  | SOLE |  | 0 | 0 | 1847 |
| ISHARES TR | RUS 2000 VAL ETF | 464287630 |  | 218198 | 1151 | SH |  | SOLE |  | 0 | 0 | 1151 |
| MODIV INDUSTRIAL INC | COM STK CL C | 60784B101 |  | 217907 | 15217 | SH |  | SOLE |  | 0 | 0 | 15217 |
| AMERICAN WTR WKS CO INC NEW | COM | 030420103 |  | 208491 | 1532 | SH |  | SOLE |  | 0 | 0 | 1532 |

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