# EDGAR Filing Document

**Accession Number:** 0001599670
**File Stem:** 0001104659-25-110275
**Filing Date:** 2025-11
**Character Count:** 10963
**Document Hash:** ae263f99f6e980dfb9aca33dad44b334
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-25-110275.hdr.sgml**: 20251112

**ACCESSION NUMBER**: 0001104659-25-110275

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20251112

**DATE AS OF CHANGE**: 20251112

**EFFECTIVENESS DATE**: 20251112

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Barbara Oil Co.
- **CENTRAL INDEX KEY:** 0001599670

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** FL

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-16002
- **FILM NUMBER:** 251472123

**BUSINESS ADDRESS:**
- **STREET 1:** 222 S. RIVERSIDE PLAZA
- **STREET 2:** SUITE 2730
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606
- **BUSINESS PHONE:** 312-726-5555

**MAIL ADDRESS:**
- **STREET 1:** 222 S. RIVERSIDE PLAZA
- **STREET 2:** SUITE 2730
- **CITY:** CHICAGO
- **STATE:** IL
- **ZIP:** 60606

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 09-30-2025

**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:** Barbara Oil Co.<br>**Address:** 222 S. RIVERSIDE PLAZA<br>SUITE 2730<br>CHICAGO, IL 60606

**Form 13F File Number:** 028-16002

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:** Scott Wahls<br>**Title:** Authorized Person<br>**Phone:** 312-346-2141

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

/s/ Scott Wahls  Chicago, IL  11-12-2025<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:** 78

**Form 13F Information Table Value Total:** $268469607

      (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 |
| AAON INC | COM | 000360206 |  | 1214720 | 13000 | SH |  | OTR |  | 13000 | 0 | 0 |
| ADOBE SYSTEMS INC | COM | 00724F101 |  | 1719656 | 4875 | SH |  | OTR |  | 4875 | 0 | 0 |
| ALPHABET INC-CL C | CAP STK CL C | 02079K107 |  | 2922600 | 12000 | SH |  | OTR |  | 12000 | 0 | 0 |
| AMAZON COM INC | COM | 023135106 |  | 1932216 | 8800 | SH |  | OTR |  | 8800 | 0 | 0 |
| AMERICAN TOWER CORP | COM | 03027X100 |  | 1427014 | 7420 | SH |  | OTR |  | 7420 | 0 | 0 |
| AMPHENOL CORP NEW | CL A | 032095101 |  | 2252250 | 18200 | SH |  | OTR |  | 18200 | 0 | 0 |
| BWX TECHNOLOGIES INC | COM | 05605H100 |  | 2152520 | 11675 | SH |  | OTR |  | 11675 | 0 | 0 |
| CLEARWATER ANALYTICS HOLDINGS INC. CLASS A | CL A | 185123106 |  | 1304107 | 72370 | SH |  | OTR |  | 72370 | 0 | 0 |
| COPART INC | COM | 217204106 |  | 2464356 | 54800 | SH |  | OTR |  | 54800 | 0 | 0 |
| COSTAR GROUP INC | COM | 22160N109 |  | 2699840 | 32000 | SH |  | OTR |  | 32000 | 0 | 0 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 733439 | 6505 | SH |  | OTR |  | 6505 | 0 | 0 |
| FASTENAL CO | COM | 311900104 |  | 1569280 | 32000 | SH |  | OTR |  | 32000 | 0 | 0 |
| FISERV INC | COM | 337738108 |  | 1547160 | 12000 | SH |  | OTR |  | 12000 | 0 | 0 |
| GUIDEWIRE SOFTWARE INC | COM | 40171V100 |  | 2413530 | 10500 | SH |  | OTR |  | 10500 | 0 | 0 |
| IDEXX LABORATORIES INC | COM | 45168D104 |  | 3350978 | 5245 | SH |  | OTR |  | 5245 | 0 | 0 |
| INTERCONTINENTAL EXCHANGE INC | COM | 45866F104 |  | 1263600 | 7500 | SH |  | OTR |  | 7500 | 0 | 0 |
| INTUIT | COM | 461202103 |  | 1297529 | 1900 | SH |  | OTR |  | 1900 | 0 | 0 |
| LIVE NATION ENTERTAINMENT INC | COM | 538034109 |  | 2125834 | 13010 | SH |  | OTR |  | 13010 | 0 | 0 |
| MASTERCARD INCORPORATED | CL A | 57636Q104 |  | 3771210 | 6630 | SH |  | OTR |  | 6630 | 0 | 0 |
| META PLATFORMS INC | CL A | 30303M102 |  | 1380634 | 1880 | SH |  | OTR |  | 1880 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 839079 | 1620 | SH |  | OTR |  | 1620 | 0 | 0 |
| NVIDIA CORP | COM | 67066G104 |  | 2918111 | 15640 | SH |  | OTR |  | 15640 | 0 | 0 |
| OREILLY AUTOMOTIVE INC | COM | 67103H107 |  | 1617150 | 15000 | SH |  | OTR |  | 15000 | 0 | 0 |
| PROCORE TECHNOLOGIES INC | COM | 74275K108 |  | 1095623 | 15025 | SH |  | OTR |  | 15025 | 0 | 0 |
| PROGRESSIVE CORP | COM | 743315103 |  | 2864620 | 11600 | SH |  | OTR |  | 11600 | 0 | 0 |
| RYAN SPECIALTY HOLDINGS INC | CL A | 78351F107 |  | 748743 | 13285 | SH |  | OTR |  | 13285 | 0 | 0 |
| SERVICENOW INC | COM | 81762P102 |  | 1164154 | 1265 | SH |  | OTR |  | 1265 | 0 | 0 |
| TRANSDIGM GROUP INC | COM | 893641100 |  | 6675771 | 5065 | SH |  | OTR |  | 5065 | 0 | 0 |
| TYLER TECHNOLOGIES INC | COM | 902252105 |  | 1255584 | 2400 | SH |  | OTR |  | 2400 | 0 | 0 |
| UBER TECHNOLOGIES INC | COM | 90353T100 |  | 1763460 | 18000 | SH |  | OTR |  | 18000 | 0 | 0 |
| VEEVA SYS INC | CL A COM | 922475108 |  | 1928967 | 6475 | SH |  | OTR |  | 6475 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 |  | 1228968 | 3600 | SH |  | OTR |  | 3600 | 0 | 0 |
| WATSCO INC | COM | 942622200 |  | 2021500 | 5000 | SH |  | OTR |  | 5000 | 0 | 0 |
| WEST PHARMACEUTICAL SVSC INC | COM | 955306105 |  | 970621 | 3700 | SH |  | OTR |  | 3700 | 0 | 0 |
| ZOETIS INC | CL A | 98978V103 |  | 1406135 | 9610 | SH |  | OTR |  | 9610 | 0 | 0 |
| ABBOTT LABS | COM | 002824100 |  | 2009100 | 15000 | SH |  | OTR |  | 15000 | 0 | 0 |
| ABBVIE INC | COM | 00287Y109 |  | 4630800 | 20000 | SH |  | OTR |  | 20000 | 0 | 0 |
| AIR PRODS  CHEMS INC | COM | 009158106 |  | 1090880 | 4000 | SH |  | OTR |  | 4000 | 0 | 0 |
| ANALOG DEVICES INC | COM | 032654105 |  | 2088450 | 8500 | SH |  | OTR |  | 8500 | 0 | 0 |
| APPLIED MATLS INC | COM | 308222105 |  | 2047400 | 10000 | SH |  | OTR |  | 10000 | 0 | 0 |
| GALLAGHER ARTHUR J  CO | COM | 363576109 |  | 5110710 | 16500 | SH |  | OTR |  | 16500 | 0 | 0 |
| AT INC | COM | 00206R102 |  | 423600 | 15000 | SH |  | OTR |  | 15000 | 0 | 0 |
| AUTOMATIC DATA PROCESSING INC | COM | 053015103 |  | 1467500 | 5000 | SH |  | OTR |  | 5000 | 0 | 0 |
| AVERY DENNISON CORP | COM | 053611109 |  | 2513635 | 15500 | SH |  | OTR |  | 15500 | 0 | 0 |
| BANK AMERICA CORP | COM | 060505104 |  | 2063600 | 40000 | SH |  | OTR |  | 40000 | 0 | 0 |
| BANK NEW YORK MELLON CORP | COM | 064058100 |  | 8716800 | 80000 | SH |  | OTR |  | 80000 | 0 | 0 |
| BAXTER INTL INC | COM | 071813109 |  | 910800 | 40000 | SH |  | OTR |  | 40000 | 0 | 0 |
| BECTON DICKINSON  CO | COM | 075887109 |  | 935850 | 5000 | SH |  | OTR |  | 5000 | 0 | 0 |
| BOEING CO | COM | 097023105 |  | 4856175 | 22500 | SH |  | OTR |  | 22500 | 0 | 0 |
| BRISTOL-MYERS SQUIBB CO | COM | 110122108 |  | 1894200 | 42000 | SH |  | OTR |  | 42000 | 0 | 0 |
| CATERPILLAR INC | COM | 149123101 |  | 5964375 | 12500 | SH |  | OTR |  | 12500 | 0 | 0 |
| CHEVRON CORP NEW | COM | 166764100 |  | 1552900 | 10000 | SH |  | OTR |  | 10000 | 0 | 0 |
| CISCO SYS INC | COM | 17275R102 |  | 4717627 | 68951 | SH |  | OTR |  | 68951 | 0 | 0 |
| EMERSON ELEC CO | COM | 291011104 |  | 5575150 | 42500 | SH |  | OTR |  | 42500 | 0 | 0 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 5073750 | 45000 | SH |  | OTR |  | 45000 | 0 | 0 |
| GLOBE LIFE INC | COM | 37959E102 |  | 9650475 | 67500 | SH |  | OTR |  | 67500 | 0 | 0 |
| HOME DEPOT INC | COM | 437076102 |  | 9724560 | 24000 | SH |  | OTR |  | 24000 | 0 | 0 |
| HONEYWELL INTL INC | COM | 438516106 |  | 3368000 | 16000 | SH |  | OTR |  | 16000 | 0 | 0 |
| ILLINOIS TOOL WKS INC | COM | 452308109 |  | 3911400 | 15000 | SH |  | OTR |  | 15000 | 0 | 0 |
| INTEL CORP | COM | 458140100 |  | 2851750 | 85000 | SH |  | OTR |  | 85000 | 0 | 0 |
| JOHNSON  JOHNSON | COM | 478160104 |  | 18912840 | 102000 | SH |  | OTR |  | 102000 | 0 | 0 |
| JPMORGAN CHASE  CO | COM | 46625H100 |  | 21133810 | 67000 | SH |  | OTR |  | 67000 | 0 | 0 |
| L3HARRIS TECHNOLOGIES INC | COM | 502431109 |  | 3054100 | 10000 | SH |  | OTR |  | 10000 | 0 | 0 |
| LOCKHEED MARTIN CORP | COM | 539830109 |  | 4243285 | 8500 | SH |  | OTR |  | 8500 | 0 | 0 |
| MERCK  CO INC | COM | 58933Y105 |  | 5228419 | 62295 | SH |  | OTR |  | 62295 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 10359000 | 20000 | SH |  | OTR |  | 20000 | 0 | 0 |
| NORFOLK SOUTHN CORP | COM | 655844108 |  | 3755125 | 12500 | SH |  | OTR |  | 12500 | 0 | 0 |
| PFIZER INC | COM | 717081103 |  | 4012794 | 157488 | SH |  | OTR |  | 157488 | 0 | 0 |
| PROCTER AND GAMBLE CO | COM | 742718109 |  | 7682500 | 50000 | SH |  | OTR |  | 50000 | 0 | 0 |
| RTX CORPORATION | COM | 75513E101 |  | 1338640 | 8000 | SH |  | OTR |  | 8000 | 0 | 0 |
| TEXAS INSTRS INC | COM | 882508104 |  | 1837300 | 10000 | SH |  | OTR |  | 10000 | 0 | 0 |
| UNION PAC CORP | COM | 907818108 |  | 3545550 | 15000 | SH |  | OTR |  | 15000 | 0 | 0 |
| UNITEDHEALTH GROUP INC | COM | 91324P102 |  | 2589750 | 7500 | SH |  | OTR |  | 7500 | 0 | 0 |
| VERIZON COMMUNICATIONS INC | COM | 92343V104 |  | 988875 | 22500 | SH |  | OTR |  | 22500 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 |  | 1143623 | 3350 | SH |  | OTR |  | 3350 | 0 | 0 |
| WALMART INC | COM | 931142103 |  | 14840640 | 144000 | SH |  | OTR |  | 144000 | 0 | 0 |
| WASTE MGMT INC DEL | COM | 94106L109 |  | 1104150 | 5000 | SH |  | OTR |  | 5000 | 0 | 0 |
| WELLS FARGO CO NEW | COM | 949746101 |  | 1508760 | 18000 | SH |  | OTR |  | 18000 | 0 | 0 |

---