# EDGAR Filing Document

**Accession Number:** 0000810958
**File Stem:** 0001104659-26-007427
**Filing Date:** 2026-1
**Character Count:** 16789
**Document Hash:** 6a1207ed7ee64e73ab9f543cbff37685
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-26-007427.hdr.sgml**: 20260128

**ACCESSION NUMBER**: 0001104659-26-007427

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

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20251231

**FILED AS OF DATE**: 20260128

**DATE AS OF CHANGE**: 20260128

**EFFECTIVENESS DATE**: 20260128

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** CITIZENS & NORTHERN CORP
- **CENTRAL INDEX KEY:** 0000810958
- **STANDARD INDUSTRIAL CLASSIFICATION:** STATE COMMERCIAL BANKS [6022]
- **ORGANIZATION NAME:** 02 Finance
- **EIN:** 232451943
- **STATE OF INCORPORATION:** PA
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 13F-HR
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 028-14195
- **FILM NUMBER:** 26572901

**BUSINESS ADDRESS:**
- **STREET 1:** 90-92 MAIN ST
- **CITY:** WELLSBORO
- **STATE:** PA
- **ZIP:** 16901
- **BUSINESS PHONE:** 877-838-2517

**MAIL ADDRESS:**
- **STREET 1:** 90-92 MAIN ST
- **CITY:** WELLSBORO
- **STATE:** PA
- **ZIP:** 16901

### 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:** CITIZENS  NORTHERN CORP<br>**Address:** 90-92 MAIN ST<br>WELLSBORO, PA 16901

**Form 13F File Number:** 028-14195

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:** Mark A. Hughes<br>**Title:** Executive Vice President and Chief Financial Officer<br>**Phone:** 570-724-3411

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

/s/ Mark A. Hughes  Wellsboro, PA  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:** 1

**Form 13F Information Table Entry Total:** 124

**Form 13F Information Table Value Total:** $403554864

      (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.]

| No.   | Name                    | Form 13F File Number   |
|:---|:---|:---|
|  | Citizens  Northern Bank | 028-14473              |

### 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 | COM | 002824100 |  | 2576213 | 20562 | SH |  | DFND | 1 | 20562 | 0 | 0 |
| Accenture PLC | SHS CLASS A | G1151C101 |  | 1499260 | 5588 | SH |  | DFND | 1 | 5588 | 0 | 0 |
| Adobe Systems Inc | COM | 00724F101 |  | 1343962 | 3840 | SH |  | DFND | 1 | 3840 | 0 | 0 |
| Advanced Micro Devices Inc | COM | 007903107 |  | 3400218 | 15877 | SH |  | DFND | 1 | 15877 | 0 | 0 |
| Alphabet Inc Class A | CAP STK CL A | 02079K305 |  | 278570 | 890 | SH |  | DFND | 1 | 890 | 0 | 0 |
| Alphabet Inc Class C | CAP STK CL C | 02079K107 |  | 12694151 | 40453 | SH |  | DFND | 1 | 40453 | 0 | 0 |
| Amazon Communications Inc | COM | 023135106 |  | 8704684 | 37712 | SH |  | DFND | 1 | 37712 | 0 | 0 |
| American Tower REIT Inc | COM | 03027X100 |  | 1590840 | 9061 | SH |  | DFND | 1 | 9061 | 0 | 0 |
| Analog Devices Inc | COM | 032654105 |  | 2518906 | 9288 | SH |  | DFND | 1 | 9288 | 0 | 0 |
| Apple Computer Inc | COM | 037833100 |  | 14473011 | 53237 | SH |  | DFND | 1 | 53237 | 0 | 0 |
| AT Inc | COM | 00206R102 |  | 423199 | 17037 | SH |  | DFND | 1 | 17037 | 0 | 0 |
| Avantis Emerging Markets Equity ETF | AVANTIS EMGMKT | 025072604 |  | 781214 | 10143 | SH |  | DFND | 1 | 10143 | 0 | 0 |
| Avantis International Equity ETF | INTL EQT ETF | 025072703 |  | 4511877 | 54809 | SH |  | DFND | 1 | 54809 | 0 | 0 |
| Avantis US Equity ETF | US EQT ETF | 025072885 |  | 1545806 | 13829 | SH |  | DFND | 1 | 13829 | 0 | 0 |
| Bath  Body Works | COM | 070830104 |  | 439170 | 21871 | SH |  | DFND | 1 | 21871 | 0 | 0 |
| Becton Dickinson  Co. | COM | 075887109 |  | 821886 | 4235 | SH |  | DFND | 1 | 4235 | 0 | 0 |
| Berkshire Hathaway Inc Class B New | CL B NEW | 084670702 |  | 731858 | 1456 | SH |  | DFND | 1 | 1456 | 0 | 0 |
| Biogen Idec Inc | COM | 09062X103 |  | 1216443 | 6912 | SH |  | DFND | 1 | 6912 | 0 | 0 |
| Blackrock Funding Inc | COM | 09290D101 |  | 237615 | 222 | SH |  | DFND | 1 | 222 | 0 | 0 |
| Blackstone Inc | COM | 09260D107 |  | 2355259 | 15280 | SH |  | DFND | 1 | 15280 | 0 | 0 |
| Boeing Co | COM | 097023105 |  | 1949738 | 8980 | SH |  | DFND | 1 | 8980 | 0 | 0 |
| Bristol Myers Squibb Co | COM | 110122108 |  | 1027611 | 19051 | SH |  | DFND | 1 | 19051 | 0 | 0 |
| Broadcom Inc Common | COM | 11135F101 |  | 2325446 | 6719 | SH |  | DFND | 1 | 6719 | 0 | 0 |
| Carrier Global Corp | COM | 14448C104 |  | 1037672 | 19638 | SH |  | DFND | 1 | 19638 | 0 | 0 |
| Caterpillar Inc | COM | 149123101 |  | 2414074 | 4214 | SH |  | DFND | 1 | 4214 | 0 | 0 |
| Cencora Inc. | COM | 03073E105 |  | 2379449 | 7045 | SH |  | DFND | 1 | 7045 | 0 | 0 |
| Charles Schwab Corp | COM | 808513105 |  | 2125186 | 21271 | SH |  | DFND | 1 | 21271 | 0 | 0 |
| Chevron Corp | COM | 166764100 |  | 1175996 | 7716 | SH |  | DFND | 1 | 7716 | 0 | 0 |
| Chipotle Mexican Grill Inc Corp Common | COM | 169656105 |  | 1407295 | 38035 | SH |  | DFND | 1 | 38035 | 0 | 0 |
| Cisco Systems Inc | COM | 17275R102 |  | 2521577 | 32735 | SH |  | DFND | 1 | 32735 | 0 | 0 |
| Citigroup Inc Common New | COM NEW | 172967424 |  | 1625492 | 13930 | SH |  | DFND | 1 | 13930 | 0 | 0 |
| Citizens  Northern Corp | COM | 172922106 |  | 7289683 | 361412 | SH |  | DFND | 1 | 361412 | 0 | 0 |
| Citizens Financial Services Inc | COM | 174615104 |  | 6674932 | 117063 | SH |  | DFND | 1 | 117063 | 0 | 0 |
| Coca Cola Co | COM | 191216100 |  | 1635405 | 23393 | SH |  | DFND | 1 | 23393 | 0 | 0 |
| Comcast Corp Class A | CL A | 20030N101 |  | 329687 | 11030 | SH |  | DFND | 1 | 11030 | 0 | 0 |
| Consumer Discretionary Select Sector SPDR | SBI CONS DISCR | 81369Y407 |  | 269867 | 2260 | SH |  | DFND | 1 | 2260 | 0 | 0 |
| Corning Inc | COM | 219350105 |  | 1903029 | 21734 | SH |  | DFND | 1 | 21734 | 0 | 0 |
| Costco Wholesale Corp (New) | COM | 22160K105 |  | 3771013 | 4373 | SH |  | DFND | 1 | 4373 | 0 | 0 |
| Cummins Inc | COM | 231021106 |  | 306270 | 600 | SH |  | DFND | 1 | 600 | 0 | 0 |
| CVS Health Corporation | COM | 126650100 |  | 2129070 | 26828 | SH |  | DFND | 1 | 26828 | 0 | 0 |
| Deere  Co | COM | 244199105 |  | 409702 | 880 | SH |  | DFND | 1 | 880 | 0 | 0 |
| DFA Dimensional Emerging Markets Core Equity 2 ETF | EMERGING MKTS CO | 25434V732 |  | 424516 | 12833 | SH |  | DFND | 1 | 12833 | 0 | 0 |
| DFA Dimensional International Core Equity 2 ETF | INTL CORE EQUITY | 25434V799 |  | 597054 | 17326 | SH |  | DFND | 1 | 17326 | 0 | 0 |
| Dimensional U.S. Core Equity 2 ETF | US CORE EQUITY 2 | 25434V708 |  | 9423331 | 238023 | SH |  | DFND | 1 | 238023 | 0 | 0 |
| Disney Walt Co | COM | 254687106 |  | 1454891 | 12788 | SH |  | DFND | 1 | 12788 | 0 | 0 |
| DuPont de Nemours Inc | COM | 26614N102 |  | 889184 | 22119 | SH |  | DFND | 1 | 22119 | 0 | 0 |
| Eaton Corp | SHS | G29183103 |  | 1435525 | 4507 | SH |  | DFND | 1 | 4507 | 0 | 0 |
| Eli Lilly  Co | COM | 532457108 |  | 338524 | 315 | SH |  | DFND | 1 | 315 | 0 | 0 |
| Emerson Electric Co | COM | 291011104 |  | 1326271 | 9993 | SH |  | DFND | 1 | 9993 | 0 | 0 |
| EOG Resources Inc. | COM | 26875P101 |  | 1126337 | 10726 | SH |  | DFND | 1 | 10726 | 0 | 0 |
| Exxon Mobil Corp | COM | 30231G102 |  | 3169515 | 26338 | SH |  | DFND | 1 | 26338 | 0 | 0 |
| Fidelity MSCI Real Estate Index ETF | MSCI RL EST ETF | 316092857 |  | 29231339 | 1087071 | SH |  | DFND | 1 | 1087071 | 0 | 0 |
| FlexShares Core Select Bond Fund ETF | CRE SLCT BD FD | 33939L670 |  | 232997 | 10418 | SH |  | DFND | 1 | 10418 | 0 | 0 |
| Freeport-McMoran Inc. | CL B | 35671D857 |  | 914169 | 17999 | SH |  | DFND | 1 | 17999 | 0 | 0 |
| General Dynamics Corp | COM | 369550108 |  | 1820657 | 5408 | SH |  | DFND | 1 | 5408 | 0 | 0 |
| GSK PLC ADR | SPONSORED ADR | 37733W204 |  | 1941739 | 39595 | SH |  | DFND | 1 | 39595 | 0 | 0 |
| Halliburton Co | COM | 406216101 |  | 232354 | 8222 | SH |  | DFND | 1 | 8222 | 0 | 0 |
| Health Care Select Sector SPDR ETF | SBI HEALTHCARE | 81369Y209 |  | 411613 | 2659 | SH |  | DFND | 1 | 2659 | 0 | 0 |
| Home Depot Inc | COM | 437076102 |  | 1927304 | 5601 | SH |  | DFND | 1 | 5601 | 0 | 0 |
| Honeywell Intl Inc | COM | 438516106 |  | 362087 | 1856 | SH |  | DFND | 1 | 1856 | 0 | 0 |
| Illinois Tool Works Inc | COM | 452308109 |  | 467477 | 1898 | SH |  | DFND | 1 | 1898 | 0 | 0 |
| Intercontinental Exchange Inc Common | COM | 45866F104 |  | 1348155 | 8324 | SH |  | DFND | 1 | 8324 | 0 | 0 |
| International Business Machines | COM | 459200101 |  | 838867 | 2832 | SH |  | DFND | 1 | 2832 | 0 | 0 |
| Intuit | COM | 461202103 |  | 1325502 | 2001 | SH |  | DFND | 1 | 2001 | 0 | 0 |
| iShares Barclays MBS Bond Fund ETF | MBS ETF | 464288588 |  | 3365932 | 35349 | SH |  | DFND | 1 | 35349 | 0 | 0 |
| iShares Barclays TIPS Bond Fund | TIPS BD ETF | 464287176 |  | 593954 | 5404 | SH |  | DFND | 1 | 5404 | 0 | 0 |
| iShares Core MSCI Emerging Mkts ETF | CORE MSCI EMKT | 46434G103 |  | 22294723 | 331668 | SH |  | DFND | 1 | 331668 | 0 | 0 |
| iShares Core S 500 ETF | CORE S ETF | 464287200 |  | 376717 | 550 | SH |  | DFND | 1 | 550 | 0 | 0 |
| iShares Dow Jones US Med Devices Index | U.S. MED DVC ETF | 464288810 |  | 384025 | 6179 | SH |  | DFND | 1 | 6179 | 0 | 0 |
| iShares iBoxx $ High Yield Corp Bond ETF | IBOXX HI YD ETF | 464288513 |  | 872578 | 10822 | SH |  | DFND | 1 | 10822 | 0 | 0 |
| iShares JPMorgan USD Emerging Markets Bond ETF | JPMORGAN USD EMG | 464288281 |  | 12730623 | 132225 | SH |  | DFND | 1 | 132225 | 0 | 0 |
| iShares North American Natural Resources ETF | NORTH AMERN NAT | 464287374 |  | 24725307 | 492536 | SH |  | DFND | 1 | 492536 | 0 | 0 |
| iShares Russell 1000 Value ETF | RUS 1000 VAL ETF | 464287598 |  | 637120 | 3029 | SH |  | DFND | 1 | 3029 | 0 | 0 |
| iShares S MidCap 400 Index Fd | CORE S MCP ETF | 464287507 |  | 17072352 | 258672 | SH |  | DFND | 1 | 258672 | 0 | 0 |
| iShares Short-Term National Muni Bond ETF | SHRT NAT MUN ETF | 464288158 |  | 632624 | 5929 | SH |  | DFND | 1 | 5929 | 0 | 0 |
| iShares Trust Russell 1000 Growth ETF | RUS 1000 GRW ETF | 464287614 |  | 1066818 | 2254 | SH |  | DFND | 1 | 2254 | 0 | 0 |
| Johnson  Johnson | COM | 478160104 |  | 1696162 | 8196 | SH |  | DFND | 1 | 8196 | 0 | 0 |
| JPMorgan Chase  Co | COM | 46625H100 |  | 6473722 | 20091 | SH |  | DFND | 1 | 20091 | 0 | 0 |
| KKR  Co Inc | COM | 48251W104 |  | 1806137 | 14168 | SH |  | DFND | 1 | 14168 | 0 | 0 |
| Lowes Cos Inc | COM | 548661107 |  | 266482 | 1105 | SH |  | DFND | 1 | 1105 | 0 | 0 |
| M  T Bank Corp | COM | 55261F104 |  | 733790 | 3642 | SH |  | DFND | 1 | 3642 | 0 | 0 |
| Marsh | COM | 571748102 |  | 1207550 | 6509 | SH |  | DFND | 1 | 6509 | 0 | 0 |
| Mastercard Inc Class A | CL A | 57636Q104 |  | 4496822 | 7877 | SH |  | DFND | 1 | 7877 | 0 | 0 |
| McDonalds Corp | COM | 580135101 |  | 944397 | 3090 | SH |  | DFND | 1 | 3090 | 0 | 0 |
| Meta Platforms Inc | CL A | 30303M102 |  | 5795590 | 8780 | SH |  | DFND | 1 | 8780 | 0 | 0 |
| Microsoft Corp | COM | 594918104 |  | 13690799 | 28309 | SH |  | DFND | 1 | 28309 | 0 | 0 |
| Mondelez Intl Inc Class A | CL A | 609207105 |  | 1302901 | 24204 | SH |  | DFND | 1 | 24204 | 0 | 0 |
| National Fuel Gas Co N J | COM | 636180101 |  | 321201 | 4012 | SH |  | DFND | 1 | 4012 | 0 | 0 |
| Netflix Inc Corp | COM | 64110L106 |  | 1465750 | 15633 | SH |  | DFND | 1 | 15633 | 0 | 0 |
| Nextera Energy Inc | COM | 65339F101 |  | 1392055 | 17340 | SH |  | DFND | 1 | 17340 | 0 | 0 |
| Nike Inc. Class B | CL B | 654106103 |  | 1083389 | 17005 | SH |  | DFND | 1 | 17005 | 0 | 0 |
| Norfolk Southern Corp | COM | 655844108 |  | 1973690 | 6836 | SH |  | DFND | 1 | 6836 | 0 | 0 |
| Nvidia Corp | COM | 67066G104 |  | 15270620 | 81880 | SH |  | DFND | 1 | 81880 | 0 | 0 |
| Oracle Corp | COM | 68389X105 |  | 2826975 | 14504 | SH |  | DFND | 1 | 14504 | 0 | 0 |
| Palo Alto Networks Inc Common | COM | 697435105 |  | 1383158 | 7509 | SH |  | DFND | 1 | 7509 | 0 | 0 |
| Paypal Holdings Inc. | COM | 70450Y103 |  | 1596751 | 27351 | SH |  | DFND | 1 | 27351 | 0 | 0 |
| Pfizer Inc | COM | 717081103 |  | 1194627 | 47977 | SH |  | DFND | 1 | 47977 | 0 | 0 |
| Procter  Gamble Co | COM | 742718109 |  | 2660693 | 18566 | SH |  | DFND | 1 | 18566 | 0 | 0 |
| Progressive Corp Ohio common | COM | 743315103 |  | 210641 | 925 | SH |  | DFND | 1 | 925 | 0 | 0 |
| Quest Diagnostics Inc | COM | 74834L100 |  | 268972 | 1550 | SH |  | DFND | 1 | 1550 | 0 | 0 |
| Rockwell Automation Inc Common | COM | 773903109 |  | 259121 | 666 | SH |  | DFND | 1 | 666 | 0 | 0 |
| Roper Industries Inc New | COM | 776696106 |  | 496320 | 1115 | SH |  | DFND | 1 | 1115 | 0 | 0 |
| RTX Corporation | COM | 75513E101 |  | 2526152 | 13774 | SH |  | DFND | 1 | 13774 | 0 | 0 |
| Salesforce Inc. | COM | 79466L302 |  | 2242993 | 8467 | SH |  | DFND | 1 | 8467 | 0 | 0 |
| Servicenow Inc | COM | 81762P102 |  | 1398165 | 9127 | SH |  | DFND | 1 | 9127 | 0 | 0 |
| SLB Limited | COM STK | 806857108 |  | 1336353 | 34819 | SH |  | DFND | 1 | 34819 | 0 | 0 |
| SPDR Dow Jones Industrial Average ETF Trust | UT SER 1 | 78467X109 |  | 1222090 | 2543 | SH |  | DFND | 1 | 2543 | 0 | 0 |
| State Street SPDR Portfolio Long Term Treasury ETF | PORTFOLIO LN TSR | 78464A664 |  | 804582 | 30396 | SH |  | DFND | 1 | 30396 | 0 | 0 |
| State Street SPDR Portfolio S 400 Mid Cap ETF | PORTFOLIO S | 78464A847 |  | 13646086 | 235643 | SH |  | DFND | 1 | 235643 | 0 | 0 |
| State Street SPDR Portfolio Short Term Treasury ETF | PORTFOLIO SH TSR | 78468R101 |  | 788657 | 26935 | SH |  | DFND | 1 | 26935 | 0 | 0 |
| State Street SPDR S 500 ETF Trust | TR UNIT | 78462F103 |  | 1961884 | 2877 | SH |  | DFND | 1 | 2877 | 0 | 0 |
| Tapestry Inc Common | COM | 876030107 |  | 1071096 | 8383 | SH |  | DFND | 1 | 8383 | 0 | 0 |
| Tjx Companies (New) | COM | 872540109 |  | 2589250 | 16856 | SH |  | DFND | 1 | 16856 | 0 | 0 |
| Truist Financial Corporation | COM | 89832Q109 |  | 232616 | 4727 | SH |  | DFND | 1 | 4727 | 0 | 0 |
| Union Pacific Corp | COM | 907818108 |  | 1166778 | 5044 | SH |  | DFND | 1 | 5044 | 0 | 0 |
| Vanguard Dividend Appreciation Index ETF | DIV APP ETF | 921908844 |  | 629889 | 2866 | SH |  | DFND | 1 | 2866 | 0 | 0 |
| Vanguard REIT Index ETF | REAL ESTATE ETF | 922908553 |  | 237419 | 2683 | SH |  | DFND | 1 | 2683 | 0 | 0 |
| Vanguard Russell 1000 Growth ETF | VNG RUS1000GRW | 92206C680 |  | 44769423 | 367716 | SH |  | DFND | 1 | 367716 | 0 | 0 |
| Vanguard Tax-Exempt Bond Index ETF | TAX EXEMPT BD | 922907746 |  | 226456 | 4503 | SH |  | DFND | 1 | 4503 | 0 | 0 |
| Vanguard Total International Bond Index Fund ETF | TOTAL INT BD ETF | 92203J407 |  | 1165527 | 24121 | SH |  | DFND | 1 | 24121 | 0 | 0 |
| Vanguard Total World Stock Index Fund ETF | TT WRLD ST ETF | 922042742 |  | 282120 | 2000 | SH |  | DFND | 1 | 2000 | 0 | 0 |
| Verizon Communications | COM | 92343V104 |  | 620725 | 15240 | SH |  | DFND | 1 | 15240 | 0 | 0 |
| W W Grainger Inc | COM | 384802104 |  | 247217 | 245 | SH |  | DFND | 1 | 245 | 0 | 0 |
| Zimmer Biomet Holdings Inc. | COM | 98956P102 |  | 726554 | 8080 | SH |  | DFND | 1 | 8080 | 0 | 0 |

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