# EDGAR Filing Document

**Accession Number:** 0001902024
**File Stem:** 0001902024-26-000001
**Filing Date:** 2026-2
**Character Count:** 12374
**Document Hash:** bb090bb7908e0b74c92cb21065b84996
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001902024-26-000001.hdr.sgml**: 20260204

**ACCESSION NUMBER**: 0001902024-26-000001

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260204

**DATE AS OF CHANGE**: 20260203

**EFFECTIVENESS DATE**: 20260204

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Austin Asset Management Co Inc
- **CENTRAL INDEX KEY:** 0001902024

**ORGANIZATION NAME:**
- **EIN:** 742484009
- **STATE OF INCORPORATION:** TX
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-21488
- **FILM NUMBER:** 26595833

**BUSINESS ADDRESS:**
- **STREET 1:** 7200 N. MOPAC EXPWY
- **STREET 2:** SUITE 315
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78731
- **BUSINESS PHONE:** 5124536622

**MAIL ADDRESS:**
- **STREET 1:** 7200 N. MOPAC EXPWY
- **STREET 2:** SUITE 315
- **CITY:** AUSTIN
- **STATE:** TX
- **ZIP:** 78731

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 12-31-2025

**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:** Austin Asset Management Co Inc<br>**Address:** 7200 N. MOPAC EXPWY<br>SUITE 315<br>AUSTIN, TX 78731

**Form 13F File Number:** 028-21488

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:** Jonathan Davison<br>**Title:** CIO/CCO<br>**Phone:** 512-637-9011

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

/s/Jonathan Davison  Austin, TX  02-03-2026<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:** 76

**Form 13F Information Table Value Total:** $608690621

      (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 |
| ABRDN ETFS | BBRG ALL COMD K1 | 003261104 | BBG00G9CFDS3 | 565296 | 28945 | SH |  | SOLE |  | 28945 | 0 | 0 |
| AFLAC INC | COM | 001055102 | BBG001S5NGJ4 | 229141 | 2078 | SH |  | SOLE |  | 2078 | 0 | 0 |
| ALPHABET INC | CAP STK CL A | 02079K305 | BBG009S39JY5 | 1084843 | 3466 | SH |  | SOLE |  | 3466 | 0 | 0 |
| ALPHABET INC | CAP STK CL C | 02079K107 | BBG009S3NB21 | 721236 | 2298 | SH |  | SOLE |  | 2298 | 0 | 0 |
| AMAZON COM INC | COM | 023135106 | BBG001S5PQL7 | 1404747 | 6086 | SH |  | SOLE |  | 6086 | 0 | 0 |
| AMERICAN CENTY ETF TR | AVANTIS EMGMKT | 025072604 | BBG00Q6ZDXT0 | 375781 | 4879 | SH |  | SOLE |  | 4879 | 0 | 0 |
| AMERICAN CENTY ETF TR | AVANTIS RESPON U | 025072281 | BBG0161K06W0 | 478401 | 6270 | SH |  | SOLE |  | 6270 | 0 | 0 |
| AMERICAN CENTY ETF TR | AVANTIS RESPONSI | 025072299 | BBG0161JYFR2 | 258425 | 3480 | SH |  | SOLE |  | 3480 | 0 | 0 |
| AMERICAN CENTY ETF TR | INTL EQT ETF | 025072703 | BBG00Q9MQ6T1 | 3241733 | 39380 | SH |  | SOLE |  | 39380 | 0 | 0 |
| AMERICAN CENTY ETF TR | US EQT ETF | 025072885 | BBG00Q9MPQH1 | 360714 | 3227 | SH |  | SOLE |  | 3227 | 0 | 0 |
| AMERICAN CENTY ETF TR | US SML CP VALU | 025072877 | BBG00Q9MQZW3 | 9896624 | 97045 | SH |  | SOLE |  | 97045 | 0 | 0 |
| APPLE INC | COM | 037833100 | BBG001S5N8V8 | 6215993 | 22865 | SH |  | SOLE |  | 22865 | 0 | 0 |
| ATLAS ENERGY SOLUTIONS INC | COM NEW | 642045108 | BBG01JFZ96Y3 | 847800 | 90000 | SH |  | SOLE |  | 90000 | 0 | 0 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 | BBG001S90346 | 252833 | 503 | SH |  | SOLE |  | 503 | 0 | 0 |
| CANADIAN PACIFIC KANSAS CITY | COM | 13646K108 | BBG001S7F4Z8 | 945630 | 12843 | SH |  | SOLE |  | 12843 | 0 | 0 |
| DELL TECHNOLOGIES INC | CL C | 24703L202 | BBG00DW3SZT0 | 1957434 | 15550 | SH |  | SOLE |  | 15550 | 0 | 0 |
| DIMENSIONAL ETF TRUST | EMERGING MKTS CO | 25434V732 | BBG017159MD8 | 2650171 | 80114 | SH |  | SOLE |  | 80114 | 0 | 0 |
| DIMENSIONAL ETF TRUST | INTERNATNAL VAL | 25434V807 | BBG012G21Y06 | 10560990 | 211643 | SH |  | SOLE |  | 211643 | 0 | 0 |
| DIMENSIONAL ETF TRUST | INTL CORE EQUITY | 25434V799 | BBG01631TNW2 | 14994892 | 435139 | SH |  | SOLE |  | 435139 | 0 | 0 |
| DIMENSIONAL ETF TRUST | INTL HIGH PROFIT | 25434V765 | BBG01636J356 | 2688879 | 84916 | SH |  | SOLE |  | 84916 | 0 | 0 |
| DIMENSIONAL ETF TRUST | INTL SMALL CAP E | 25434V773 | BBG01633DW64 | 2358339 | 71595 | SH |  | SOLE |  | 71595 | 0 | 0 |
| DIMENSIONAL ETF TRUST | INTL SMALL CAP V | 25434V781 | BBG01633Y2Y6 | 650712 | 17124 | SH |  | SOLE |  | 17124 | 0 | 0 |
| DIMENSIONAL ETF TRUST | SHORT DURATION F | 25434V864 | BBG01254JDW6 | 407096 | 8490 | SH |  | SOLE |  | 8490 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US CORE EQUITY 2 | 25434V708 | BBG011DXY6D4 | 159674124 | 4033193 | SH |  | SOLE |  | 4033193 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US EQUITY MARKET | 25434V401 | BBG011DXXNJ2 | 70416367 | 949391 | SH |  | SOLE |  | 949391 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US HIGH PROFITAB | 25434V831 | BBG015DLMLQ7 | 14178732 | 372830 | SH |  | SOLE |  | 372830 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US LARGE CAP VAL | 25434V666 | BBG01BN5Z188 | 14713139 | 430083 | SH |  | SOLE |  | 430083 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US MKTWIDE VALUE | 25434V724 | BBG0177CTQC7 | 15428540 | 331156 | SH |  | SOLE |  | 331156 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US REAL ESTATE E | 25434V823 | BBG015GTL6R0 | 517567 | 22600 | SH |  | SOLE |  | 22600 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US SMALL CAP ETF | 25434V500 | BBG011DXXVM0 | 32947930 | 472914 | SH |  | SOLE |  | 472914 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US SMALL CAP VAL | 25434V815 | BBG015DG3GG1 | 1562703 | 47513 | SH |  | SOLE |  | 47513 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US SUSTAINABILTY | 25434V716 | BBG01B92NHL4 | 294673 | 6785 | SH |  | SOLE |  | 6785 | 0 | 0 |
| DIMENSIONAL ETF TRUST | US TARGETED VLU | 25434V609 | BBG011DXY0L8 | 9333569 | 156761 | SH |  | SOLE |  | 156761 | 0 | 0 |
| DIMENSIONAL ETF TRUST | WORLD EQUITY ETF | 25434V617 | BBG01J9W24S6 | 693489 | 9374 | SH |  | SOLE |  | 9374 | 0 | 0 |
| ELI LILLY  CO | COM | 532457108 | BBG001S5STL8 | 3583019 | 3334 | SH |  | SOLE |  | 3334 | 0 | 0 |
| EXXON MOBIL CORP | COM | 30231G102 | BBG001S69V32 | 694459 | 5771 | SH |  | SOLE |  | 5771 | 0 | 0 |
| FIRST FINL BANKSHARES INC | COM | 32020R109 | BBG001S7HCY9 | 973702 | 32598 | SH |  | SOLE |  | 32598 | 0 | 0 |
| GREENBRIER COS INC | COM | 393657101 | BBG001S80QK9 | 1000376 | 21403 | SH |  | SOLE |  | 21403 | 0 | 0 |
| HEXCEL CORP NEW | COM | 428291108 | BBG001S5S2J0 | 339940 | 4600 | SH |  | SOLE |  | 4600 | 0 | 0 |
| HOME DEPOT INC | COM | 437076102 | BBG001S5RTW7 | 325349 | 946 | SH |  | SOLE |  | 946 | 0 | 0 |
| INTERNATIONAL BUSINESS MACHS | COM | 459200101 | BBG001S5S399 | 300950 | 1016 | SH |  | SOLE |  | 1016 | 0 | 0 |
| INVESCO EXCHANGE TRADED FD T | RAFI US 1000 ETF | 46137V613 | BBG001S6H5N8 | 1138582 | 24266 | SH |  | SOLE |  | 24266 | 0 | 0 |
| INVESCO EXCHANGE TRADED FD T | S EQL WGT | 46137V357 | BBG00KJR2NN7 | 852634 | 4451 | SH |  | SOLE |  | 4451 | 0 | 0 |
| ISHARES INC | CORE MSCI EMKT | 46434G103 | BBG003HC3DG9 | 238429 | 3547 | SH |  | SOLE |  | 3547 | 0 | 0 |
| ISHARES TR | 0-5 YR TIPS ETF | 46429B747 | BBG001TG5H89 | 29701933 | 290086 | SH |  | SOLE |  | 290086 | 0 | 0 |
| ISHARES TR | CORE MSCI EAFE | 46432F842 | BBG003H6TRS0 | 278867 | 3117 | SH |  | SOLE |  | 3117 | 0 | 0 |
| ISHARES TR | CORE S ETF | 464287200 | BBG001SFB7R6 | 2016501 | 2944 | SH |  | SOLE |  | 2944 | 0 | 0 |
| ISHARES TR | MSCI EAFE ETF | 464287465 | BBG001SG09V7 | 667606 | 6952 | SH |  | SOLE |  | 6952 | 0 | 0 |
| ISHARES TR | RUS 1000 GRW ETF | 464287614 | BBG001S56320 | 655047 | 1384 | SH |  | SOLE |  | 1384 | 0 | 0 |
| ISHARES TR | RUS 1000 VAL ETF | 464287598 | BBG001S562P7 | 505026 | 2401 | SH |  | SOLE |  | 2401 | 0 | 0 |
| ISHARES TR | TIPS BD ETF | 464287176 | BBG001SD9RM5 | 777763 | 7076 | SH |  | SOLE |  | 7076 | 0 | 0 |
| JOHNSON  JOHNSON | COM | 478160104 | BBG001S5SHQ9 | 248547 | 1201 | SH |  | SOLE |  | 1201 | 0 | 0 |
| JPMORGAN CHASE  CO. | COM | 46625H100 | BBG001S8CRC3 | 307720 | 955 | SH |  | SOLE |  | 955 | 0 | 0 |
| META PLATFORMS INC | CL A | 30303M102 | BBG001SQCQC5 | 757783 | 1148 | SH |  | SOLE |  | 1148 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 | BBG001S5TD05 | 1433639 | 2964 | SH |  | SOLE |  | 2964 | 0 | 0 |
| NETFLIX INC | COM | 64110L106 | BBG001SF6L46 | 291594 | 3110 | SH |  | SOLE |  | 3110 | 0 | 0 |
| NUTEX HEALTH INC | COM | 67079U306 | BBG001T5W5K5 | 417641 | 2537 | SH |  | SOLE |  | 2537 | 0 | 0 |
| NVIDIA CORPORATION | COM | 67066G104 | BBG001S5TZJ6 | 91924092 | 492891 | SH |  | SOLE |  | 492891 | 0 | 0 |
| PATHWARD FINANCIAL INC | COM | 59100U108 | BBG001S7G4Q7 | 23772766 | 0 | SH |  | SOLE |  | 0 | 0 | 0 |
| SCHWAB STRATEGIC TR | US LCAP VA ETF | 808524409 | BBG001T66WQ7 | 338719 | 11439 | SH |  | SOLE |  | 11439 | 0 | 0 |
| SPDR S 500 ETF TR | TR UNIT | 78462F103 | BBG001S72SM3 | 4784578 | 7016 | SH |  | SOLE |  | 7016 | 0 | 0 |
| SPOTIFY TECHNOLOGY S A | SHS | L8681T102 | BBG003T4VFD1 | 221831 | 382 | SH |  | SOLE |  | 382 | 0 | 0 |
| TAIWAN SEMICONDUCTOR MFG LTD | SPONSORED ADS | 874039100 | BBG001S5WWW4 | 449757 | 1480 | SH |  | SOLE |  | 1480 | 0 | 0 |
| TESLA INC | COM | 88160R101 | BBG001SQKGD7 | 636804 | 1416 | SH |  | SOLE |  | 1416 | 0 | 0 |
| UNITED PARCEL SERVICE INC | CL B | 911312106 | BBG001SDGSH1 | 251465 | 2535 | SH |  | SOLE |  | 2535 | 0 | 0 |
| VANGUARD BD INDEX FDS | INTERMED TERM | 921937819 | BBG001ST39R1 | 14370795 | 184525 | SH |  | SOLE |  | 184525 | 0 | 0 |
| VANGUARD BD INDEX FDS | SHORT TRM BOND | 921937827 | BBG001ST39Q2 | 13867688 | 175964 | SH |  | SOLE |  | 175964 | 0 | 0 |
| VANGUARD INDEX FDS | GROWTH ETF | 922908736 | BBG001SHTTS4 | 202462 | 415 | SH |  | SOLE |  | 415 | 0 | 0 |
| VANGUARD INDEX FDS | REAL ESTATE ETF | 922908553 | BBG001SMD2X3 | 19582431 | 221295 | SH |  | SOLE |  | 221295 | 0 | 0 |
| VANGUARD INDEX FDS | TOTAL STK MKT | 922908769 | BBG001SHTB03 | 225972 | 674 | SH |  | SOLE |  | 674 | 0 | 0 |
| VANGUARD INDEX FDS | VALUE ETF | 922908744 | BBG001SHVR78 | 682407 | 3573 | SH |  | SOLE |  | 3573 | 0 | 0 |
| VANGUARD INTL EQUITY INDEX F | FTSE EMR MKT ETF | 922042858 | BBG001SHTTZ6 | 769789 | 14319 | SH |  | SOLE |  | 14319 | 0 | 0 |
| VANGUARD MALVERN FDS | STRM INFPROIDX | 922020805 | BBG003H12XS7 | 4842221 | 97902 | SH |  | SOLE |  | 97902 | 0 | 0 |
| VANGUARD TAX-MANAGED FDS | VAN FTSE DEV MKT | 921943858 | BBG001SSPWL4 | 445599 | 7133 | SH |  | SOLE |  | 7133 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 | BBG001SRCFY3 | 484729 | 1382 | SH |  | SOLE |  | 1382 | 0 | 0 |
| WALMART INC | COM | 931142103 | BBG001S5XH92 | 420866 | 3778 | SH |  | SOLE |  | 3778 | 0 | 0 |

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