# EDGAR Filing Document

**Accession Number:** 0000946310
**File Stem:** 0002085853-26-000578
**Filing Date:** 2026-5
**Character Count:** 14022
**Document Hash:** 80a71904ace65380c0aadd760864f5b9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0002085853-26-000578.hdr.sgml**: 20260511

**ACCESSION NUMBER**: 0002085853-26-000578

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20260331

**FILED AS OF DATE**: 20260511

**DATE AS OF CHANGE**: 20260511

**EFFECTIVENESS DATE**: 20260511

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** WESTCO ADVISORY SERVICES INC /ADV
- **CENTRAL INDEX KEY:** 0000946310

**ORGANIZATION NAME:**
- **EIN:** 112720560
- **STATE OF INCORPORATION:** NY
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-26879
- **FILM NUMBER:** 26961335

**BUSINESS ADDRESS:**
- **STREET 1:** 77 HEMPSTEAD AVENUE
- **CITY:** LYNBROOK
- **STATE:** NY
- **ZIP:** 11563
- **BUSINESS PHONE:** 5165935070

**MAIL ADDRESS:**
- **STREET 1:** 77 HEMPSTEAD AVENUE
- **CITY:** LYNBROOK
- **STATE:** NY
- **ZIP:** 11563

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** WESTCO ADVISORY SERVICES INC                            /ADV
- **DATE OF NAME CHANGE:** 19950607

### 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:** WESTCO ADVISORY SERVICES INC /ADV<br>**Address:** 77 HEMPSTEAD AVENUE<br>LYNBROOK, NY 11563

**Form 13F File Number:** 028-26879

**CRD Number (if applicable):** 000020744

**SEC File Number (if applicable):** 8-38452

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:** ADDISON JUSTIN DRUMMOND<br>**Title:** CHIEF COMPLIANCE OFFICER<br>**Phone:** 516-593-5070

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

/s/ ADDISON JUSTIN DRUMMOND  LYNBROOK, NY  05-11-2026<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:** 104

**Form 13F Information Table Value Total:** $155511790

      (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 |
| AAR CORP | COM | 000361105 |  | 255480 | 2334 | SH |  | SOLE |  | 2334 | 0 | 0 |
| ABBVIE INC | COM | 00287Y109 |  | 730114 | 3357 | SH |  | SOLE |  | 3357 | 0 | 0 |
| ALLSTATE CORP | COM | 020002101 |  | 434999 | 2098 | SH |  | SOLE |  | 2098 | 0 | 0 |
| ALPHABET INC | CAP STK CL A | 02079K305 |  | 2816650 | 9795 | SH |  | SOLE |  | 9795 | 0 | 0 |
| AMAZON COM INC | COM | 023135106 |  | 435701 | 2092 | SH |  | SOLE |  | 2092 | 0 | 0 |
| AMERICAN ELEC PWR CO INC | COM | 025537101 |  | 498104 | 3800 | SH |  | SOLE |  | 3800 | 0 | 0 |
| AMGEN INC | COM | 031162100 |  | 1364122 | 3877 | SH |  | SOLE |  | 3877 | 0 | 0 |
| AMPHENOL CORP | CL A | 032095101 |  | 451701 | 3575 | SH |  | SOLE |  | 3575 | 0 | 0 |
| AON PLC | SHS CL A | G0403H108 |  | 502891 | 1558 | SH |  | SOLE |  | 1558 | 0 | 0 |
| APPLE INC | COM | 037833100 |  | 15283234 | 60220 | SH |  | SOLE |  | 60220 | 0 | 0 |
| APPLOVIN CORP | COM CL A | 03831W108 |  | 210940 | 530 | SH |  | SOLE |  | 530 | 0 | 0 |
| ARISTA NETWORKS INC | COM SHS | 040413205 |  | 384179 | 3129 | SH |  | SOLE |  | 3129 | 0 | 0 |
| AT INC | COM | 00206R102 |  | 208844 | 7204 | SH |  | SOLE |  | 7204 | 0 | 0 |
| BANK AMERICA CORP | COM | 060505104 |  | 2176639 | 44649 | SH |  | SOLE |  | 44649 | 0 | 0 |
| BANK NEW YORK MELLON CORP | COM | 064058100 |  | 1407664 | 11866 | SH |  | SOLE |  | 11866 | 0 | 0 |
| BERKLEY W R CORP | COM | 084423102 |  | 406760 | 6137 | SH |  | SOLE |  | 6137 | 0 | 0 |
| BERKSHIRE HATHAWAY INC DEL | CL B NEW | 084670702 |  | 5568304 | 11620 | SH |  | SOLE |  | 11620 | 0 | 0 |
| BLACKROCK INC | COM | 09290D101 |  | 1323313 | 1376 | SH |  | SOLE |  | 1376 | 0 | 0 |
| BLACKSTONE INC | COM | 09260D107 |  | 1166689 | 10146 | SH |  | SOLE |  | 10146 | 0 | 0 |
| BROADCOM INC | COM | 11135F101 |  | 1893582 | 6118 | SH |  | SOLE |  | 6118 | 0 | 0 |
| CATERPILLAR INC | COM | 149123101 |  | 541972 | 765 | SH |  | SOLE |  | 765 | 0 | 0 |
| CELESTICA INC | COM | 15101Q207 |  | 3275375 | 11628 | SH |  | SOLE |  | 11628 | 0 | 0 |
| CENCORA INC | COM | 03073E105 |  | 975719 | 3106 | SH |  | SOLE |  | 3106 | 0 | 0 |
| CHEVRON CORPORATION | COM | 166764100 |  | 1609682 | 7780 | SH |  | SOLE |  | 7780 | 0 | 0 |
| CHURCH  DWIGHT CO INC | COM | 171340102 |  | 856024 | 9173 | SH |  | SOLE |  | 9173 | 0 | 0 |
| CINCINNATI FINL CORP | COM | 172062101 |  | 695959 | 4423 | SH |  | SOLE |  | 4423 | 0 | 0 |
| CINTAS CORP | COM | 172908105 |  | 1621376 | 9586 | SH |  | SOLE |  | 9586 | 0 | 0 |
| COCA COLA CO | COM | 191216100 |  | 382532 | 5030 | SH |  | SOLE |  | 5030 | 0 | 0 |
| COMFORT SYS USA INC | COM | 199908104 |  | 2040905 | 1480 | SH |  | SOLE |  | 1480 | 0 | 0 |
| COSTCO WHOLESALE CORPORATION | COM | 22160K105 |  | 1728806 | 1735 | SH |  | SOLE |  | 1735 | 0 | 0 |
| DARDEN RESTAURANTS INC | COM | 237194105 |  | 318369 | 1624 | SH |  | SOLE |  | 1624 | 0 | 0 |
| DHT HOLDINGS INC | SHS NEW | Y2065G121 |  | 938000 | 51341 | SH |  | SOLE |  | 51341 | 0 | 0 |
| ELI LILLY  CO | COM | 532457108 |  | 1811947 | 1970 | SH |  | SOLE |  | 1970 | 0 | 0 |
| FIDELITY COVINGTON TRUST | FUNDAMENTAL LARG | 316092360 |  | 613574 | 11964 | SH |  | SOLE |  | 11964 | 0 | 0 |
| FIRST TR EXCH TRADED FD III | INSTL PFD SECS | 33739P855 |  | 205124 | 10796 | SH |  | SOLE |  | 10796 | 0 | 0 |
| FIRST TR EXCHANGE TRADED FD | RBA INDL ETF | 33738R704 |  | 353167 | 3188 | SH |  | SOLE |  | 3188 | 0 | 0 |
| FOX CORP | CL A COM | 35137L105 |  | 279327 | 4783 | SH |  | SOLE |  | 4783 | 0 | 0 |
| GENERAL DYNAMICS CORP | COM | 369550108 |  | 591368 | 1723 | SH |  | SOLE |  | 1723 | 0 | 0 |
| GILDAN ACTIVEWEAR INC | COM | 375916103 |  | 623614 | 11206 | SH |  | SOLE |  | 11206 | 0 | 0 |
| GOLDMAN SACHS GROUP INC | COM | 38141G104 |  | 13558682 | 16027 | SH |  | SOLE |  | 16027 | 0 | 0 |
| GRAYSCALE BITCOIN MINI TR ET | SHS NEW | 389930207 |  | 449370 | 14984 | SH |  | SOLE |  | 14984 | 0 | 0 |
| GSK PLC | SPONSORED ADR | 37733W204 |  | 244216 | 4425 | SH |  | SOLE |  | 4425 | 0 | 0 |
| HERSHEY CO | COM | 427866108 |  | 332624 | 1600 | SH |  | SOLE |  | 1600 | 0 | 0 |
| HONEYWELL INTL INC | COM | 438516106 |  | 341305 | 1510 | SH |  | SOLE |  | 1510 | 0 | 0 |
| ILLINOIS TOOL WKS INC | COM | 452308109 |  | 819393 | 3148 | SH |  | SOLE |  | 3148 | 0 | 0 |
| INVESCO EXCH TRADED FD TR II | S LOW VOL | 46138E354 |  | 210277 | 2875 | SH |  | SOLE |  | 2875 | 0 | 0 |
| INVESCO EXCH TRADED FD TR II | INVESCO PHLX SM | 46138G615 |  | 326499 | 5469 | SH |  | SOLE |  | 5469 | 0 | 0 |
| INVESCO EXCHANGE TRADED FD T | S 500 TOP 50 | 46137V233 |  | 350375 | 6423 | SH |  | SOLE |  | 6423 | 0 | 0 |
| INVESCO EXCHANGE TRADED FD T | S SMLCP MOMENT | 46137V498 |  | 356838 | 4694 | SH |  | SOLE |  | 4694 | 0 | 0 |
| ISHARES TR | CORE S US GWT | 464287671 |  | 988981 | 6376 | SH |  | SOLE |  | 6376 | 0 | 0 |
| ISHARES TR | CONV BD ETF | 46435G102 |  | 278192 | 2733 | SH |  | SOLE |  | 2733 | 0 | 0 |
| ISHARES TR | CORE S ETF | 464287200 |  | 296687 | 454 | SH |  | SOLE |  | 454 | 0 | 0 |
| ISHARES TR | RUS TP200 GR ETF | 464289438 |  | 839088 | 3372 | SH |  | SOLE |  | 3372 | 0 | 0 |
| ISHARES TR | S 100 ETF | 464287101 |  | 344152 | 1082 | SH |  | SOLE |  | 1082 | 0 | 0 |
| JPMORGAN CHASE  CO | COM | 46625H100 |  | 8935992 | 30378 | SH |  | SOLE |  | 30378 | 0 | 0 |
| KINDER MORGAN INC DEL | COM | 49456B101 |  | 394715 | 11772 | SH |  | SOLE |  | 11772 | 0 | 0 |
| LAMAR ADVERTISING CO | CL A | 512816109 |  | 1399593 | 11050 | SH |  | SOLE |  | 11050 | 0 | 0 |
| MANULIFE FINL CORP | COM | 56501R106 |  | 1056723 | 30683 | SH |  | SOLE |  | 30683 | 0 | 0 |
| MARRIOTT INTL INC NEW | CL A | 571903202 |  | 212268 | 649 | SH |  | SOLE |  | 649 | 0 | 0 |
| MCDONALDS CORP | COM | 580135101 |  | 924600 | 2975 | SH |  | SOLE |  | 2975 | 0 | 0 |
| MERCK  CO INC | COM | 58933Y105 |  | 1309477 | 10886 | SH |  | SOLE |  | 10886 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 5395228 | 14575 | SH |  | SOLE |  | 14575 | 0 | 0 |
| MODINE MFG CO | COM | 607828100 |  | 551310 | 2544 | SH |  | SOLE |  | 2544 | 0 | 0 |
| MORGAN STANLEY | COM NEW | 617446448 |  | 1205475 | 7325 | SH |  | SOLE |  | 7325 | 0 | 0 |
| MPLX LP | COM UNIT REP LTD | 55336V100 |  | 451709 | 7915 | SH |  | SOLE |  | 7915 | 0 | 0 |
| NVIDIA CORPORATION | COM | 67066G104 |  | 1664822 | 9546 | SH |  | SOLE |  | 9546 | 0 | 0 |
| OLD DOMINION FREIGHT LINE IN | COM | 679580100 |  | 2941356 | 15053 | SH |  | SOLE |  | 15053 | 0 | 0 |
| OLD REP INTL CORP | COM | 680223104 |  | 291270 | 7300 | SH |  | SOLE |  | 7300 | 0 | 0 |
| OUTFRONT MEDIA INC | COM NEW | 69007J304 |  | 1971865 | 74410 | SH |  | SOLE |  | 74410 | 0 | 0 |
| PACKAGING CORP AMER | COM | 695156109 |  | 445238 | 2098 | SH |  | SOLE |  | 2098 | 0 | 0 |
| PHIBRO ANIMAL HEALTH CORP | CL A COM | 71742Q106 |  | 218475 | 3950 | SH |  | SOLE |  | 3950 | 0 | 0 |
| PLAINS GP HLDGS L P | LTD PARTNR INT A | 72651A207 |  | 448622 | 18477 | SH |  | SOLE |  | 18477 | 0 | 0 |
| PUBLIC STORAGE OPER CO | COM | 74460D109 |  | 230248 | 850 | SH |  | SOLE |  | 850 | 0 | 0 |
| ROBINHOOD MKTS INC | COM CL A | 770700102 |  | 1496395 | 21593 | SH |  | SOLE |  | 21593 | 0 | 0 |
| ROLLINS INC | COM | 775711104 |  | 877580 | 16431 | SH |  | SOLE |  | 16431 | 0 | 0 |
| SCHWAB CHARLES CORP | COM | 808513105 |  | 215778 | 2296 | SH |  | SOLE |  | 2296 | 0 | 0 |
| SCHWAB STRATEGIC TR | US SML CAP ETF | 808524607 |  | 222956 | 7667 | SH |  | SOLE |  | 7667 | 0 | 0 |
| SCHWAB STRATEGIC TR | US MID-CAP ETF | 808524508 |  | 219723 | 7097 | SH |  | SOLE |  | 7097 | 0 | 0 |
| SCHWAB STRATEGIC TR | US LRG CAP ETF | 808524201 |  | 1126083 | 43919 | SH |  | SOLE |  | 43919 | 0 | 0 |
| SCHWAB STRATEGIC TR | FUNDAMENTAL US L | 808524771 |  | 359321 | 12902 | SH |  | SOLE |  | 12902 | 0 | 0 |
| SEAGATE TECHNOLOGY HLDNGS PL | ORD SHS | G7997R103 |  | 3255917 | 8311 | SH |  | SOLE |  | 8311 | 0 | 0 |
| SELECT SECTOR SPDR TR | STATE STREET ENE | 81369Y506 |  | 406276 | 6632 | SH |  | SOLE |  | 6632 | 0 | 0 |
| SOFI TECHNOLOGIES INC | COM | 83406F102 |  | 238502 | 15019 | SH |  | SOLE |  | 15019 | 0 | 0 |
| SPDR GOLD TR | GOLD SHS | 78463V107 |  | 2305064 | 5357 | SH |  | SOLE |  | 5357 | 0 | 0 |
| SPDR SERIES TRUST | STATE STREET SPD | 78468R606 |  | 298309 | 12792 | SH |  | SOLE |  | 12792 | 0 | 0 |
| SPDR SERIES TRUST | STATE STREET SPD | 78464A508 |  | 214891 | 3798 | SH |  | SOLE |  | 3798 | 0 | 0 |
| SPDR SERIES TRUST | STATE STREET SPD | 78464A789 |  | 203775 | 3705 | SH |  | SOLE |  | 3705 | 0 | 0 |
| SPDR SERIES TRUST | STATE STREET SPD | 78464A649 |  | 568892 | 22205 | SH |  | SOLE |  | 22205 | 0 | 0 |
| SPDR SERIES TRUST | STATE STREET SPD | 78464A763 |  | 585511 | 4012 | SH |  | SOLE |  | 4012 | 0 | 0 |
| SPDR SERIES TRUST | STATE STREET SPD | 78464A847 |  | 614822 | 10382 | SH |  | SOLE |  | 10382 | 0 | 0 |
| STATE STR SPDR S 500 ETF T | TR UNIT | 78462F103 |  | 25814818 | 39694 | SH |  | SOLE |  | 39694 | 0 | 0 |
| TECHNIPFMC PLC | COM | G87110105 |  | 372956 | 5395 | SH |  | SOLE |  | 5395 | 0 | 0 |
| THERMO FISHER SCIENTIFIC INC | COM | 883556102 |  | 1175248 | 2391 | SH |  | SOLE |  | 2391 | 0 | 0 |
| TRACTOR SUPPLY CO | COM | 892356106 |  | 2194332 | 48440 | SH |  | SOLE |  | 48440 | 0 | 0 |
| TRAVELERS COMPANIES INC | COM | 89417E109 |  | 323473 | 1109 | SH |  | SOLE |  | 1109 | 0 | 0 |
| VANECK ETF TRUST | RETAIL ETF | 92189F684 |  | 264942 | 1056 | SH |  | SOLE |  | 1056 | 0 | 0 |
| VANGUARD INDEX FDS | S 500 ETF SHS | 922908363 |  | 383627 | 642 | SH |  | SOLE |  | 642 | 0 | 0 |
| VANGUARD WORLD FD | MEGA CAP VAL ETF | 921910840 |  | 332370 | 2293 | SH |  | SOLE |  | 2293 | 0 | 0 |
| VERTEX PHARMACEUTICALS INC | COM | 92532F100 |  | 914960 | 2049 | SH |  | SOLE |  | 2049 | 0 | 0 |
| VERTIV HOLDINGS CO | COM CL A | 92537N108 |  | 323248 | 1290 | SH |  | SOLE |  | 1290 | 0 | 0 |
| VISA INC | COM CL A | 92826C839 |  | 1856660 | 6143 | SH |  | SOLE |  | 6143 | 0 | 0 |
| WESTERN MIDSTREAM PARTNERS L | COM UNIT LP INT | 958669103 |  | 239074 | 5807 | SH |  | SOLE |  | 5807 | 0 | 0 |
| WILLIAMS COS INC | COM | 969457100 |  | 1119649 | 15384 | SH |  | SOLE |  | 15384 | 0 | 0 |
| WISDOMTREE TR | GLB HIGH DIV FD | 97717W877 |  | 218223 | 3290 | SH |  | SOLE |  | 3290 | 0 | 0 |

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