UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 Form 13F Form 13F COVER PAGE Report for the Calendar Year or Quarter Ended: March 31, 2010 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: First Commonwealth Financial Corporation Address: 22 North Sixth Street Indiana, PA, 15701 Form 13F File Number:28-05151 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 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: Teresa M. Ciambotti Title: Senior Vice President and Controller Phone: (724) 463-4725 Signature, Place, and Date of Signing: /s/ Teresa M. Ciambotti Teresa M. Ciambotti, Indiana, PA, May 12, 2010 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 reported are 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: 183 Form 13F Information Table Value Total: $87,397 (thousands) 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. Number: 1 Form 13F File Number: 28-11893 Name: FORM 13F INFORMATION TABLE COLUMN 1 COL 2 COL 3 COL 4 COLUMN 5 COL 6 COL 7 COLUMN 8 TITLE MARKET VOTING OF VALUE SHS OR SH/ PUT/ INVESTMENT OTHER AUTHORITY ISSUER CLASS CUSIP (X$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ---------------------------- ------ --------- -------- --------- --- ---- ---------- -------- --------- ------ ----- 3M CO COMMON 88579Y101 264 3,160 SH DEFINED 1 2,170 990 3M CO COMMON 88579Y101 713 8,535 SH OTHER 1 8,535 ABBOTT LABS COMMON 002824100 901 17,106 SH DEFINED 1 15,499 1,607 ABBOTT LABS COMMON 002824100 60 1,138 SH OTHER 1 1,138 ADOBE SYS INC COMMON 00724F101 593 16,757 SH DEFINED 1 16,757 ADOBE SYS INC COMMON 00724F101 21 601 SH OTHER 1 601 AIR PRODS & CHEMS INC COMMON 009158106 603 8,150 SH DEFINED 1 8,150 AIR PRODS & CHEMS INC COMMON 009158106 37 497 SH OTHER 1 497 ALLSTATE CORP COMMON 020002101 82 2,534 SH DEFINED 1 2,534 ALLSTATE CORP COMMON 020002101 211 6,529 SH OTHER 1 6,529 ALTRIA GROUP INC COMMON 02209S103 38 1,844 SH DEFINED 1 1,738 106 ALTRIA GROUP INC COMMON 02209S103 649 31,640 SH OTHER 1 31,640 APACHE CORP COMMON 037411105 710 6,993 SH DEFINED 1 6,993 APACHE CORP COMMON 037411105 110 1,079 SH OTHER 1 535 544 APPLE INC COMMON 037833100 1,112 4,734 SH DEFINED 1 4,717 17 APPLE INC COMMON 037833100 41 175 SH OTHER 1 175 AT&T INC COMMON 00206R102 1,276 49,378 SH DEFINED 1 46,833 2,545 AT&T INC COMMON 00206R102 244 9,424 SH OTHER 1 9,119 300 5 AUTODESK INC COMMON 052769106 410 13,953 SH DEFINED 1 13,953 AUTODESK INC COMMON 052769106 25 851 SH OTHER 1 851 BANK OF AMERICA CORPORATION COMMON 060505104 133 7,430 SH DEFINED 1 1,174 6,256 BANK OF AMERICA CORPORATION COMMON 060505104 172 9,611 SH OTHER 1 9,611 BANK OF NEW YORK MELLON CORP COMMON 064058100 357 11,576 SH DEFINED 1 9,066 2,510 BANK OF NEW YORK MELLON CORP COMMON 064058100 112 3,612 SH OTHER 1 1,372 490 1,750 BECTON DICKINSON & CO COMMON 075887109 725 9,207 SH DEFINED 1 8,919 288 BECTON DICKINSON & CO COMMON 075887109 76 969 SH OTHER 1 969 BERKSHIRE SECURITIES COMMON 084991868 1,159 5,600 SH DEFINED 1 5,600 BERKSHIRE SECURITIES COMMON 084991868 373 1,800 SH OTHER 1 1,800 BOEING CO COMMON 097023105 38 525 SH DEFINED 1 525 BOEING CO COMMON 097023105 264 3,636 SH OTHER 1 3,636 BP PLC COMMON 055622104 669 11,726 SH DEFINED 1 11,657 69 BP PLC COMMON 055622104 420 7,365 SH OTHER 1 6,363 1,002 BP PRUDHOE BAY RTY TR COMMON 055630107 20 200 SH DEFINED 1 200 BP PRUDHOE BAY RTY TR COMMON 055630107 197 2,000 SH OTHER 1 2,000 CATERPILLAR INC DEL COMMON 149123101 614 9,766 SH DEFINED 1 9,766 CATERPILLAR INC DEL COMMON 149123101 185 2,950 SH OTHER 1 2,950 CHEVRON CORP NEW COMMON 166764100 1,002 13,215 SH DEFINED 1 10,974 2,241 CHEVRON CORP NEW COMMON 166764100 480 6,327 SH OTHER 1 5,977 350 CISCO SYS INC COMMON 17275R102 926 35,588 SH DEFINED 1 31,118 4,470 CISCO SYS INC COMMON 17275R102 238 9,134 SH OTHER 1 8,984 150 CITIGROUP INC COMMON 172967101 9 2,312 SH DEFINED 1 2,312 CITIGROUP INC COMMON 172967101 247 61,025 SH OTHER 1 60,911 114 CNB FINL CORP PA COMMON 126128107 443 28,700 SH DEFINED 1 28,700 COCA COLA CO COMMON 191216100 478 8,686 SH DEFINED 1 8,437 200 49 COCA COLA CO COMMON 191216100 53 956 SH OTHER 1 956 CONOCOPHILLIPS COMMON 20825C104 529 10,342 SH DEFINED 1 8,330 2,012 CONOCOPHILLIPS COMMON 20825C104 125 2,449 SH OTHER 1 2,369 80 CVS CAREMARK CORPORATION COMMON 126650100 641 17,540 SH DEFINED 1 17,540 CVS CAREMARK CORPORATION COMMON 126650100 40 1,087 SH OTHER 1 1,087 DISNEY WALT CO COMMON 254687106 300 8,593 SH DEFINED 1 5,864 2,729 DISNEY WALT CO COMMON 254687106 28 800 SH OTHER 1 800 DOMINION RES INC VA NEW COMMON 25746U109 694 16,888 SH DEFINED 1 16,236 652 DOMINION RES INC VA NEW COMMON 25746U109 139 3,386 SH OTHER 1 3,386 DU PONT E I DE NEMOURS & CO COMMON 263534109 250 6,704 SH DEFINED 1 6,704 DU PONT E I DE NEMOURS & CO COMMON 263534109 54 1,442 SH OTHER 1 1,142 300 EMBRYO DEV CORP COMMON 290818103 -- 15,000 SH DEFINED 1 15,000 EMERSON ELEC CO COMMON 291011104 2,329 46,268 SH DEFINED 1 45,328 940 EMERSON ELEC CO COMMON 291011104 811 16,110 SH OTHER 1 16,110 ENTERPRISE PRODS PARTNERS L COMMON 293792107 36 1,034 SH DEFINED 1 1,034 ENTERPRISE PRODS PARTNERS L COMMON 293792107 203 5,860 SH OTHER 1 5,860 ESB FINANCIAL CORP COMMON 26884F102 133 10,310 SH DEFINED 10,310 -- -- EXXON MOBIL CORP COMMON 30231G102 2,586 38,608 SH DEFINED 1 38,608 EXXON MOBIL CORP COMMON 30231G102 1,850 27,620 SH OTHER 1 10,683 16,937 FEDEX CORP COMMON 31428X106 405 4,334 SH DEFINED 1 4,334 FEDEX CORP COMMON 31428X106 26 283 SH OTHER 1 283 FIRST COMWLTH FINL CORP PA COMMON 319829107 6,116 911,518 SH DEFINED 1 908,052 3,466 FIRST COMWLTH FINL CORP PA COMMON 319829107 120 17,881 SH OTHER 1 8,052 9,829 FIRSTMERIT CORP COMMON 337915102 219 10,145 SH DEFINED 10,145 -- -- FNB CORP PA COMMON 302520101 83 10,224 SH DEFINED 1 10,224 FNB CORP PA COMMON 302520101 -- 43 SH OTHER 1 43 FREEPORT-MCMORAN COPPER & GO COMMON 35671D857 257 3,073 SH DEFINED 1 3,073 FREEPORT-MCMORAN COPPER & GO COMMON 35671D857 2 24 SH OTHER 1 24 GATEWAY BANK OF PENNSYLVANIA COMMON 869099101 46 5,000 SH DEFINED 5,000 -- -- GENERAL ELECTRIC CO COMMON 369604103 920 50,570 SH DEFINED 1 45,760 4,810 GENERAL ELECTRIC CO COMMON 369604103 2,218 121,861 SH OTHER 1 119,891 1,630 340 GENERAL MLS INC COMMON 370334104 749 10,578 SH DEFINED 1 10,578 GENERAL MLS INC COMMON 370334104 46 655 SH OTHER 1 655 GENUINE PARTS CO COMMON 372460105 673 15,940 SH DEFINED 1 15,940 GENUINE PARTS CO COMMON 372460105 19 445 SH OTHER 1 445 GOLDMAN SACHS GROUP INC COMMON 38141G104 588 3,445 SH DEFINED 1 3,445 GOLDMAN SACHS GROUP INC COMMON 38141G104 47 273 SH OTHER 1 273 GOOGLE INC COMMON 38259P508 837 1,475 SH DEFINED 1 1,275 200 COLUMN 1 COL 2 COL 3 COL 4 COLUMN 5 COL 6 COL 7 COLUMN 8 TITLE MARKET VOTING OF VALUE SHS OR SH/ PUT/ INVESTMENT OTHER AUTHORITY ISSUER CLASS CUSIP (X$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ---------------------------- ------ --------- -------- --------- --- ---- ---------- -------- --------- ------ ----- GOOGLE INC COMMON 38259P508 15 27 SH OTHER 1 27 HEINZ H J CO COMMON 423074103 472 10,346 SH DEFINED 1 10,250 96 HEINZ H J CO COMMON 423074103 38 838 SH OTHER 1 838 HELMERICH & PAYNE INC COMMON 423452101 292 7,670 SH DEFINED 1 7,670 HELMERICH & PAYNE INC COMMON 423452101 19 496 SH OTHER 1 496 INGERSOLL-RAND PLC COMMON G47791101 209 6,000 SH OTHER 1 6,000 INTEL CORP COMMON 458140100 498 22,346 SH DEFINED 1 16,906 5,440 INTEL CORP COMMON 458140100 143 6,412 SH OTHER 1 6,262 150 INTERNATIONAL BUSINESS MACHS COMMON 459200101 1,449 11,301 SH DEFINED 1 11,056 245 INTERNATIONAL BUSINESS MACHS COMMON 459200101 1,835 14,310 SH OTHER 1 14,210 100 JACOBS ENGR GROUP INC DEL COMMON 469814107 638 14,110 SH DEFINED 1 14,110 JACOBS ENGR GROUP INC DEL COMMON 469814107 29 643 SH OTHER 1 643 JOHNSON & JOHNSON COMMON 478160104 1,051 16,118 SH DEFINED 1 15,614 504 JOHNSON & JOHNSON COMMON 478160104 586 8,981 SH OTHER 1 8,911 70 JPMORGAN CHASE & CO COMMON 46625H100 935 20,893 SH DEFINED 1 19,013 1,880 JPMORGAN CHASE & CO COMMON 46625H100 208 4,638 SH OTHER 1 4,638 KRAFT FOODS INC COMMON 50075N104 4 139 SH DEFINED 1 139 KRAFT FOODS INC COMMON 50075N104 662 21,876 SH OTHER 1 21,876 L-3 COMMUNICATIONS HLDGS INC COMMON 502424104 567 6,187 SH DEFINED 1 5,901 286 L-3 COMMUNICATIONS HLDGS INC COMMON 502424104 37 407 SH OTHER 1 407 LOWES COS INC COMMON 548661107 179 7,397 SH DEFINED 1 7,397 LOWES COS INC COMMON 548661107 91 3,743 SH OTHER 1 2,933 810 MCDONALDS CORP COMMON 580135101 913 13,690 SH DEFINED 1 13,295 395 MCDONALDS CORP COMMON 580135101 70 1,053 SH OTHER 1 1,053 MERCK & CO INC NEW COMMON 58933Y105 89 2,386 SH DEFINED 1 2,360 26 MERCK & CO INC NEW COMMON 58933Y105 852 22,810 SH OTHER 1 22,310 500 METLIFE INC COMMON 59156R108 511 11,786 SH DEFINED 1 11,786 METLIFE INC COMMON 59156R108 8 188 SH OTHER 1 188 MICROSOFT CORP COMMON 594918104 1,017 34,736 SH DEFINED 1 30,637 4,099 MICROSOFT CORP COMMON 594918104 221 7,540 SH OTHER 1 7,350 190 MONSANTO CO NEW COMMON 61166W101 470 6,579 SH DEFINED 1 5,866 713 MONSANTO CO NEW COMMON 61166W101 18 259 SH OTHER 1 259 NEW MEXICO BANQUEST COMMON 647991926 1,859 7,207 SH DEFINED 1 7,207 NEW MEXICO BANQUEST COMMON 647991926 59 229 SH OTHER 1 229 ORACLE CORP COMMON 68389X105 818 31,808 SH DEFINED 1 31,808 ORACLE CORP COMMON 68389X105 86 3,349 SH OTHER 1 3,189 160 PARKER HANNIFIN CORP COMMON 701094104 591 9,132 SH DEFINED 1 9,132 PARKER HANNIFIN CORP COMMON 701094104 42 646 SH OTHER 1 646 PARKVALE FINANCIAL CORP COMMON 701492100 830 111,263 SH DEFINED 111,263 -- -- PEPSICO INC COMMON 713448108 737 11,142 SH DEFINED 1 10,717 425 PEPSICO INC COMMON 713448108 1,215 18,372 SH OTHER 1 18,372 PETSMART INC COMMON 716768106 789 24,681 SH DEFINED 1 22,581 2,100 PETSMART INC COMMON 716768106 28 862 SH OTHER 1 862 PFIZER INC COMMON 717081103 111 6,486 SH DEFINED 1 6,486 PFIZER INC COMMON 717081103 364 21,221 SH OTHER 1 21,021 200 PHILIP MORRIS INTL INC COMMON 718172109 810 15,527 SH DEFINED 1 13,787 1,740 PHILIP MORRIS INTL INC COMMON 718172109 1,449 27,773 SH OTHER 1 27,773 PNC FINL SVCS GROUP INC COMMON 693475105 227 3,807 SH DEFINED 1 3,807 PNC FINL SVCS GROUP INC COMMON 693475105 257 4,300 SH OTHER 1 4,300 PPG INDS INC COMMON 693506107 203 3,104 SH DEFINED 1 3,104 PPG INDS INC COMMON 693506107 1,155 17,654 SH OTHER 1 15,154 2,500 PRECISION CASTPARTS CORP COMMON 740189105 680 5,367 SH DEFINED 1 5,367 PRECISION CASTPARTS CORP COMMON 740189105 38 300 SH OTHER 1 300 PRICE T ROWE GROUP INC COMMON 74144T108 771 14,033 SH DEFINED 1 13,594 439 PRICE T ROWE GROUP INC COMMON 74144T108 81 1,473 SH OTHER 1 1,473 PROCTER & GAMBLE CO COMMON 742718109 1,083 17,123 SH DEFINED 1 16,621 502 PROCTER & GAMBLE CO COMMON 742718109 2,437 38,523 SH OTHER 1 38,523 PRUDENTIAL FINL INC COMMON 744320102 221 3,652 SH DEFINED 1 3,652 PRUDENTIAL FINL INC COMMON 744320102 15 251 SH OTHER 1 251 PUBLIC SVC ENTERPRISE GROUP COMMON 744573106 94 3,187 SH DEFINED 1 287 2,900 PUBLIC SVC ENTERPRISE GROUP COMMON 744573106 250 8,460 SH OTHER 1 8,460 QUALCOMM INC COMMON 747525103 353 8,422 SH DEFINED 1 8,422 QUALCOMM INC COMMON 747525103 12 277 SH OTHER 1 277 ROCKWELL AUTOMATION INC COMMON 773903109 247 4,382 SH DEFINED 1 4,382 ROCKWELL AUTOMATION INC COMMON 773903109 77 1,370 SH OTHER 1 1,370 ROCKWELL COLLINS INC COMMON 774341101 242 3,869 SH DEFINED 1 3,869 ROCKWELL COLLINS INC COMMON 774341101 99 1,580 SH OTHER 1 1,580 S & T BANCORP INC COMMON 783859101 912 43,634 SH DEFINED 1 43,634 S & T BANCORP INC COMMON 783859101 31 1,464 SH OTHER 1 1,464 STATE STR CORP COMMON 857477103 517 11,456 SH DEFINED 1 11,456 STATE STR CORP COMMON 857477103 21 474 SH OTHER 1 394 80 SUSQUEHANNA BANCSHARES INC P COMMON 869099101 512 52,242 SH DEFINED 1 52,242 TARGET CORP COMMON 87612E106 734 13,955 SH DEFINED 1 13,955 TARGET CORP COMMON 87612E106 238 4,516 SH OTHER 1 4,516 TEVA PHARMACEUTICAL INDS LTD COMMON 881624209 765 12,123 SH DEFINED 1 12,072 51 TEVA PHARMACEUTICAL INDS LTD COMMON 881624209 45 714 SH OTHER 1 514 200 TEXAS INSTRS INC COMMON 882508104 408 16,681 SH DEFINED 1 14,571 2,110 TEXAS INSTRS INC COMMON 882508104 38 1,567 SH OTHER 1 1,567 THERMO FISHER SCIENTIFIC INC COMMON 883556102 666 12,948 SH DEFINED 1 12,948 THERMO FISHER SCIENTIFIC INC COMMON 883556102 31 608 SH OTHER 1 608 TIME WARNER CABLE INC COMMON 88732J207 701 13,151 SH DEFINED 1 13,151 TIME WARNER CABLE INC COMMON 88732J207 25 465 SH OTHER 1 465 TRANSOCEAN LTD COMMON H8817H100 528 6,113 SH DEFINED 1 4,905 1,208 TRANSOCEAN LTD COMMON H8817H100 25 295 SH OTHER 1 295 TRISTATE CAPITAL BANK COMMON 99R733108 600 50,000 SH DEFINED 50,000 -- -- US BANCORP DEL COMMON 902973304 343 13,266 SH DEFINED 1 13,266 US BANCORP DEL COMMON 902973304 19 733 SH OTHER 1 733 VERIZON COMMUNICATIONS INC COMMON 92343V104 1,141 36,785 SH DEFINED 1 36,663 122 VERIZON COMMUNICATIONS INC COMMON 92343V104 749 24,144 SH OTHER 1 20,300 3,844 VISA INC COMMON 92826C839 506 5,559 SH DEFINED 1 5,559 VISA INC COMMON 92826C839 23 257 SH OTHER 1 257 VIST FINANCIAL CORP COMMON 524477106 820 91,400 SH DEFINED 91,400 -- -- COLUMN 1 COL 2 COL 3 COL 4 COLUMN 5 COL 6 COL 7 COLUMN 8 TITLE MARKET VOTING OF VALUE SHS OR SH/ PUT/ INVESTMENT OTHER AUTHORITY ISSUER CLASS CUSIP (X$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE ---------------------------- ------ --------- -------- --------- --- ---- ---------- -------- --------- ------ ----- VIST FINANCIAL CORP COMMON 918255100 96 10,655 SH DEFINED 1 10,655 WAL MART STORES INC COMMON 931142103 671 12,066 SH DEFINED 1 10,010 2,056 WAL MART STORES INC COMMON 931142103 42 764 SH OTHER 1 704 60 WELLS FARGO & CO NEW COMMON 949746101 708 22,743 SH DEFINED 1 22,743 WELLS FARGO & CO NEW COMMON 949746101 249 7,995 SH OTHER 1 7,995 XCEL ENERGY INC COMMON 98389B100 535 25,239 SH DEFINED 1 25,239 XCEL ENERGY INC COMMON 98389B100 39 1,817 SH OTHER 1 1,817 ZIMMER HLDGS INC COMMON 98956P102 566 9,556 SH DEFINED 1 8,466 1,090 ZIMMER HLDGS INC COMMON 98956P102 28 470 SH OTHER 1 300 100 70 GRAND TOTALS 87,397 3,059,394