# EDGAR Filing Document

**Accession Number:** 0002104293
**File Stem:** 0001213900-26-008605
**Filing Date:** 2026-1
**Character Count:** 14229
**Document Hash:** 54213d36721ec0bcbebce75b5dd83f63
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-008605.hdr.sgml**: 20260128

**ACCESSION NUMBER**: 0001213900-26-008605

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20200630

**FILED AS OF DATE**: 20260128

**DATE AS OF CHANGE**: 20260128

**EFFECTIVENESS DATE**: 20260128

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Cornerstone National Bank & Trust Co
- **CENTRAL INDEX KEY:** 0002104293

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** IL
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-25999
- **FILM NUMBER:** 26569377

**BUSINESS ADDRESS:**
- **STREET 1:** ONE WEST NORTHWEST HIGHWAY
- **CITY:** PALATINE
- **STATE:** IL
- **ZIP:** 60067
- **BUSINESS PHONE:** 847.654.3000

**MAIL ADDRESS:**
- **STREET 1:** ONE WEST NORTHWEST HIGHWAY
- **CITY:** PALATINE
- **STATE:** IL
- **ZIP:** 60067

### FORM 13F COVER PAGE

**Report for the Calendar Year or Quarter Ended:** 06-30-2020

**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:** Cornerstone National Bank  Trust Co<br>**Address:** ONE WEST NORTHWEST HIGHWAY<br>PALATINE, IL 60067

**Form 13F File Number:** 028-25999

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:** Stephanie C. Brown<br>**Title:** Executive Vice President<br>**Phone:** 847-654-3020

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

/s/ Stephanie C. Brown  Palatine, IL  01-28-2026<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:** 105

**Form 13F Information Table Value Total:** $137216061

      (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 |
| ABBOTT LABS INC | COM | 002824100 |  | 8869 | 8869 | SH |  | SOLE |  | 79 | 0 | 18 |
| ABBOTT LABS INC | COM | 002824100 |  | 898391 | 898391 | SH |  | DFND |  | 9826 | 0 | 0 |
| ACCENTURE PLC CL A | SHS CLASS A | G1151C101 |  | 12883 | 60 | SH |  | SOLE |  | 50 | 0 | 10 |
| ACCENTURE PLC CL A | SHS CLASS A | G1151C101 |  | 1165715 | 5429 | SH |  | DFND |  | 5429 | 0 | 0 |
| ALEXION PHARMACEUTICALS INC | COM | 015351109 |  | 8418 | 8418 | SH |  | SOLE |  | 61 | 0 | 14 |
| ALEXION PHARMACEUTICALS INC | COM | 015351109 |  | 838994 | 838994 | SH |  | DFND |  | 7475 | 0 | 0 |
| ALLSTATE CORP | COM | 020002101 |  | 6789 | 6789 | SH |  | SOLE |  | 59 | 0 | 11 |
| ALLSTATE CORP | COM | 020002101 |  | 595907 | 595907 | SH |  | DFND |  | 6144 | 0 | 0 |
| APPLE INC | COM | 037833100 |  | 316282 | 316282 | SH |  | SOLE |  | 867 | 0 | 0 |
| BAXTER INTERNATIONAL INC | COM | 071813109 |  | 270440 | 270440 | SH |  | SOLE |  | 3141 | 0 | 0 |
| BERKSHIRE HATHAWAY INC-CL B | CL B NEW | 084670702 |  | 6426 | 6426 | SH |  | SOLE |  | 30 | 0 | 6 |
| BERKSHIRE HATHAWAY INC-CL B | CL B NEW | 084670702 |  | 629426 | 629426 | SH |  | DFND |  | 3526 | 0 | 0 |
| CHEVRON CORPORATION | COM | 166764100 |  | 4372 | 4372 | SH |  | SOLE |  | 41 | 0 | 8 |
| CHEVRON CORPORATION | COM | 166764100 |  | 425092 | 425092 | SH |  | DFND |  | 4764 | 0 | 0 |
| COCA COLA CO | COM | 191216100 |  | 6881 | 6881 | SH |  | SOLE |  | 128 | 0 | 26 |
| COCA COLA CO | COM | 191216100 |  | 689100 | 689100 | SH |  | DFND |  | 15423 | 0 | 0 |
| COMCAST CORP-CL A | CL A | 20030N101 |  | 8965 | 8965 | SH |  | SOLE |  | 191 | 0 | 39 |
| COMCAST CORP-CL A | CL A | 20030N101 |  | 876699 | 876699 | SH |  | DFND |  | 21142 | 0 | 1349 |
| COMM SERV SELECT SECTOR SPDR | COMMUNICATION | 81369Y852 |  | 21886 | 405 | SH |  | SOLE |  | 405 | 0 | 0 |
| COMM SERV SELECT SECTOR SPDR | COMMUNICATION | 81369Y852 |  | 1933497 | 35779 | SH |  | DFND |  | 35779 | 0 | 0 |
| CONSUMER DISCRETIONARY SELT | SBI CONS DISCR | 81369Y407 |  | 8301 | 65 | SH |  | SOLE |  | 65 | 0 | 0 |
| CONSUMER DISCRETIONARY SELT | SBI CONS DISCR | 81369Y407 |  | 721562 | 5650 | SH |  | DFND |  | 5650 | 0 | 0 |
| CVS HEALTH CORP | COM | 126650100 |  | 10070 | 10070 | SH |  | SOLE |  | 129 | 0 | 26 |
| CVS HEALTH CORP | COM | 126650100 |  | 887360 | 887360 | SH |  | DFND |  | 13658 | 0 | 0 |
| EBAY INC COM | COM | 278642103 |  | 9441 | 9441 | SH |  | SOLE |  | 150 | 0 | 30 |
| EBAY INC COM | COM | 278642103 |  | 830126 | 830126 | SH |  | DFND |  | 15827 | 0 | 0 |
| EDWARDS LIFESCIENCES CORP | COM | 28176E108 |  | 288742 | 288742 | SH |  | SOLE |  | 4178 | 0 | 0 |
| ELI LILLY  CO | COM | 532457108 |  | 8045 | 8045 | SH |  | SOLE |  | 40 | 0 | 9 |
| ELI LILLY  CO | COM | 532457108 |  | 816796 | 816796 | SH |  | DFND |  | 4975 | 0 | 0 |
| EXELON CORP | COM | 30161N101 |  | 3883 | 3883 | SH |  | SOLE |  | 89 | 0 | 18 |
| EXELON CORP | COM | 30161N101 |  | 960088 | 960088 | SH |  | DFND |  | 26456 | 0 | 0 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 4561 | 4561 | SH |  | SOLE |  | 85 | 0 | 17 |
| EXXON MOBIL CORP | COM | 30231G102 |  | 432711 | 432711 | SH |  | DFND |  | 9676 | 0 | 0 |
| FINANCIAL SELECT SECTOR SPDR | SBI INT-FINL | 81369Y605 |  | 3216 | 139 | SH |  | SOLE |  | 139 | 0 | 0 |
| FINANCIAL SELECT SECTOR SPDR | SBI INT-FINL | 81369Y605 |  | 280711 | 12131 | SH |  | DFND |  | 12131 | 0 | 0 |
| FIRST MIDWEST BANCORP INC DEL | COM | 320867104 |  | 991651 | 991651 | SH |  | SOLE |  | 74281 | 0 | 0 |
| FLEXSHARES CREDIT-SCORED US | CR SCD US BD | 33939L761 |  | 345506 | 6332 | SH |  | SOLE |  | 6332 | 0 | 0 |
| FLEXSHARES CREDIT-SCORED US | CR SCD US BD | 33939L761 |  | 19452641 | 356504 | SH |  | DFND |  | 356504 | 0 | 0 |
| FLEXSHARES CREDIT-SCORED US LONG | CR SCORED LONG | 33939L753 |  | 87333 | 1408 | SH |  | SOLE |  | 1408 | 0 | 0 |
| FLEXSHARES CREDIT-SCORED US LONG | CR SCORED LONG | 33939L753 |  | 9185599 | 148092 | SH |  | DFND |  | 148092 | 0 | 0 |
| FLEXSHARES DISCIPLINED DURATION MBS | DISCP DUR MBS | 33939L779 |  | 279333 | 11557 | SH |  | SOLE |  | 11557 | 0 | 0 |
| FLEXSHARES DISCIPLINED DURATION MBS | DISCP DUR MBS | 33939L779 |  | 23818351 | 985451 | SH |  | DFND |  | 985451 | 0 | 0 |
| FLEXSHARES GLOBAL INFRASTRUCTURE IND | STOXX GLOBR INF | 33939L795 |  | 98994 | 2071 | SH |  | SOLE |  | 2071 | 0 | 0 |
| FLEXSHARES GLOBAL INFRASTRUCTURE IND | STOXX GLOBR INF | 33939L795 |  | 7111063 | 148767 | SH |  | DFND |  | 148767 | 0 | 0 |
| FLEXSHARES GLOBAL REAL ESTATE INDEX | GLB QLT R/E IDX | 33939L787 |  | 28351 | 552 | SH |  | SOLE |  | 552 | 0 | 0 |
| FLEXSHARES GLOBAL REAL ESTATE INDEX | GLB QLT R/E IDX | 33939L787 |  | 2475398 | 48197 | SH |  | DFND |  | 48197 | 0 | 0 |
| FLEXSHARES IBOXX 3-YEAR TARG | IBOXX 3R TARGT | 33939L506 |  | 227368 | 8994 | SH |  | SOLE |  | 8994 | 0 | 0 |
| FLEXSHARES IBOXX 3-YEAR TARG | IBOXX 3R TARGT | 33939L506 |  | 13621724 | 538834 | SH |  | DFND |  | 538834 | 0 | 0 |
| FLEXSHARES MORNINGSTAR DEVEL | M STAR DEV MKT | 33939L803 |  | 73453 | 1375 | SH |  | SOLE |  | 1375 | 0 | 0 |
| FLEXSHARES MORNINGSTAR DEVEL | M STAR DEV MKT | 33939L803 |  | 7036963 | 131729 | SH |  | DFND |  | 131729 | 0 | 0 |
| FLEXSHARES MORNINGSTAR EMERG | MSTAR EMKT FAC | 33939L308 |  | 7420 | 166 | SH |  | SOLE |  | 166 | 0 | 0 |
| FLEXSHARES MORNINGSTAR EMERG | MSTAR EMKT FAC | 33939L308 |  | 565276 | 12646 | SH |  | DFND |  | 12646 | 0 | 0 |
| FLEXSHARES NATURAL RESOURCES INDEX | MORNSTAR UPSTR | 33939L407 |  | 28193 | 1020 | SH |  | SOLE |  | 1020 | 0 | 0 |
| FLEXSHARES NATURAL RESOURCES INDEX | MORNSTAR UPSTR | 33939L407 |  | 2680223 | 96969 | SH |  | DFND |  | 96969 | 0 | 0 |
| GENERAL DYNAMICS CORP | COM | 369550108 |  | 7025 | 7025 | SH |  | SOLE |  | 39 | 0 | 8 |
| GENERAL DYNAMICS CORP | COM | 369550108 |  | 620558 | 620558 | SH |  | DFND |  | 4152 | 0 | 0 |
| INDUSTRIAL SELECT SECTOR SPDR | SBI INT-INDS | 81369Y704 |  | 5290 | 77 | SH |  | SOLE |  | 77 | 0 | 0 |
| INDUSTRIAL SELECT SECTOR SPDR | SBI INT-INDS | 81369Y704 |  | 463862 | 6752 | SH |  | DFND |  | 6752 | 0 | 0 |
| INTERCONTINENTAL EXCHANGE INC | COM | 45866F104 |  | 7969 | 7969 | SH |  | SOLE |  | 73 | 0 | 14 |
| INTERCONTINENTAL EXCHANGE INC | COM | 45866F104 |  | 728128 | 728128 | SH |  | DFND |  | 7949 | 0 | 0 |
| ISHARES CORE S 500 ETF | CORE S ETF | 464287200 |  | 582837 | 1882 | SH |  | SOLE |  | 1882 | 0 | 0 |
| ISHARES RUSSELL 1000 GROWTH ETF | RUS 1000 VAL ETF | 464287614 |  | 401559 | 2092 | SH |  | SOLE |  | 2092 | 0 | 0 |
| ISHARES U.S. TREASURY BOND ETF | US TREAS BD ETF | 46429B267 |  | 137459 | 4911 | SH |  | SOLE |  | 4911 | 0 | 0 |
| ISHARES U.S. TREASURY BOND ETF | US TREAS BD ETF | 46429B267 |  | 7183158 | 256633 | SH |  | DFND |  | 256633 | 0 | 0 |
| JP MORGAN CHASE  CO | COM | 46625H100 |  | 8277 | 8277 | SH |  | SOLE |  | 73 | 0 | 15 |
| JP MORGAN CHASE  CO | COM | 46625H100 |  | 758970 | 758970 | SH |  | DFND |  | 8069 | 0 | 0 |
| KLA CORP | COM NEW | 482480100 |  | 11280 | 11280 | SH |  | SOLE |  | 48 | 0 | 10 |
| KLA CORP | COM NEW | 482480100 |  | 1006628 | 1006628 | SH |  | DFND |  | 5176 | 0 | 0 |
| LOWES COS INC | COM | 548661107 |  | 8918 | 8918 | SH |  | SOLE |  | 55 | 0 | 11 |
| LOWES COS INC | COM | 548661107 |  | 780588 | 780588 | SH |  | DFND |  | 5777 | 0 | 0 |
| MASCO CORP | COM | 574599106 |  | 7130 | 7130 | SH |  | SOLE |  | 118 | 0 | 24 |
| MASCO CORP | COM | 574599106 |  | 631491 | 631491 | SH |  | DFND |  | 12577 | 0 | 0 |
| MATERIALS SELECT SPDR FUND | SBI MATERIALS | 81369Y100 |  | 8058 | 143 | SH |  | SOLE |  | 143 | 0 | 0 |
| MATERIALS SELECT SPDR FUND | SBI MATERIALS | 81369Y100 |  | 720153 | 12780 | SH |  | DFND |  | 12780 | 0 | 0 |
| MICROCHIP TECHNOLOGY INC | COM | 595017104 |  | 10426 | 10426 | SH |  | SOLE |  | 82 | 0 | 17 |
| MICROCHIP TECHNOLOGY INC | COM | 595017104 |  | 922621 | 922621 | SH |  | DFND |  | 8761 | 0 | 0 |
| MICROSOFT CORP | COM | 594918104 |  | 11193 | 11193 | SH |  | SOLE |  | 46 | 0 | 9 |
| MICROSOFT CORP | COM | 594918104 |  | 1178526 | 1178526 | SH |  | DFND |  | 5791 | 0 | 0 |
| NORFOLK SOUTHERN CORP | COM | 655844108 |  | 6496 | 37 | SH |  | SOLE |  | 31 | 0 | 6 |
| NORFOLK SOUTHERN CORP | COM | 655844108 |  | 585175 | 3333 | SH |  | DFND |  | 3333 | 0 | 0 |
| ORACLE CORPORATION COM | COM | 68389X105 |  | 10557 | 191 | SH |  | SOLE |  | 159 | 0 | 32 |
| ORACLE CORPORATION COM | COM | 68389X105 |  | 951086 | 17208 | SH |  | DFND |  | 17208 | 0 | 0 |
| PEPSICO INC | COM | 713448108 |  | 5555 | 42 | SH |  | SOLE |  | 35 | 0 | 7 |
| PEPSICO INC | COM | 713448108 |  | 498356 | 3768 | SH |  | DFND |  | 3768 | 0 | 0 |
| PFIZER INC | COM | 717081103 |  | 6377 | 195 | SH |  | SOLE |  | 159 | 0 | 36 |
| PFIZER INC | COM | 717081103 |  | 647852 | 19812 | SH |  | DFND |  | 19812 | 0 | 0 |
| PROCTER  GAMBLE CO | COM | 742718109 |  | 7413 | 62 | SH |  | SOLE |  | 52 | 0 | 10 |
| PROCTER  GAMBLE CO | COM | 742718109 |  | 721246 | 6032 | SH |  | DFND |  | 6032 | 0 | 0 |
| REAL ESTATE SELECT SECT SPDR | RL EST SEL SEC | 81369Y860 |  | 6266 | 180 | SH |  | SOLE |  | 180 | 0 | 0 |
| REAL ESTATE SELECT SECT SPDR | RL EST SEL SEC | 81369Y860 |  | 556403 | 15984 | SH |  | DFND |  | 15984 | 0 | 0 |
| SALESFORCE.COM | COM | 79466L302 |  | 10865 | 58 | SH |  | SOLE |  | 48 | 0 | 10 |
| SALESFORCE.COM | COM | 79466L302 |  | 964750 | 5150 | SH |  | DFND |  | 5150 | 0 | 0 |
| SPDR S 500 ETF TRUST | TR UNIT | 78462F103 |  | 240829 | 781 | SH |  | SOLE |  | 781 | 0 | 0 |
| TJX COMPANIES | COM | 872540109 |  | 9202 | 182 | SH |  | SOLE |  | 151 | 0 | 31 |
| TJX COMPANIES | COM | 872540109 |  | 801022 | 15843 | SH |  | DFND |  | 15843 | 0 | 0 |
| VANGUARD SMALL-CAP ETF | SMALL CP ETF | 922908751 |  | 35701 | 245 | SH |  | SOLE |  | 245 | 0 | 0 |
| VANGUARD SMALL-CAP ETF | SMALL CP ETF | 922908751 |  | 3285257 | 22545 | SH |  | DFND |  | 22545 | 0 | 0 |
| VANGUARD TOTAL STOCK MARKET ETF | TOTAL STK MKT | 922908769 |  | 49620 | 317 | SH |  | SOLE |  | 317 | 0 | 0 |
| VANGUARD TOTAL STOCK MARKET ETF | TOTAL STK MKT | 922908769 |  | 6899373 | 44077 | SH |  | DFND |  | 44077 | 0 | 0 |
| VISA INC CL A | COM CL A | 92826C839 |  | 9079 | 47 | SH |  | SOLE |  | 39 | 0 | 8 |
| VISA INC CL A | COM CL A | 92826C839 |  | 882014 | 4566 | SH |  | DFND |  | 4566 | 0 | 0 |
| WALT DISNEY COMPANY | COM DISNEY | 254687106 |  | 8475 | 76 | SH |  | SOLE |  | 63 | 0 | 13 |
| WALT DISNEY COMPANY | COM DISNEY | 254687106 |  | 810120 | 7265 | SH |  | DFND |  | 7265 | 0 | 0 |
| XILINX INC | COM | 983919101 |  | 9937 | 101 | SH |  | SOLE |  | 84 | 0 | 17 |
| XILINX INC | COM | 983919101 |  | 889446 | 9040 | SH |  | DFND |  | 9040 | 0 | 0 |

---