13F-HR 1 inftable033110.txt COVER & 13F 3/31/2010 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 holding entries. Institutional Investment Manager Filing this report: Name: Mount Vernon Associates, Inc. Address: 6080 Falls Road, Suite 200 Baltimore, Md 21209 13F File Number: 52-1453813 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 the required items, statements, schedules, lists, and tables, are considered integral parts of this form. Person Signing this Report on Behalf of Reporting Manager: Name: Nancy V. OHara Title: Vice President Phone: 410-377-9780 Signature, Place, and Date of Signing: Nancy V. OHara Baltimore, Maryland May 3, 2010 Report Type (Check only one.): [X] 13F HOLDING REPORT [ ] 13F NOTICE. [ ] 13F COMBINATION REPORT List of Other Managers Reporting for this Manager: I AM SIGNING THIS REPORT AS REQUIRED BY THE SECURITIES EXCHANGE ACT OF 1934. FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: 0 Form 13f Information Table Entry Total: 44 Form 13F Information Table Value Total: 109138 List of Other Included Managers: No. 13F File Number Name FORM 13F INFORMATION TABLE VALUE SHARES/ SH/ PUT/ INVSTMT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DSCRETN MANAGERS SOLE SHARED NONE ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- -------- Telkonet Convertible Pfd A 264 120 SH SOLE 120 American Express Co. COM 025816109 3209 77765 SH SOLE 77765 Amgen Inc. COM 031162100 2018 33720 SH SOLE 33720 Apple Inc. COM 037833100 5835 24829 SH SOLE 24829 Applied Materials Inc. COM 038222105 1357 100750 SH SOLE 100750 Bank of America Corp COM 060505104 2005 112301 SH SOLE 112301 Bristol-Myers Squibb Co. COM 110122108 2572 96318 SH SOLE 96318 Capital One Financial Corp. COM 14040H105 303 7320 SH SOLE 7320 Caterpillar Inc COM 149123101 1153 18345 SH SOLE 18345 Cisco Systems Inc. COM 17275R102 1757 67500 SH SOLE 67500 Citigroup, Inc. COM 172967101 413 102050 SH SOLE 102050 Conseco, Inc. COM 208464883 121 19500 SH SOLE 19500 Costco Wholesale Corp COM 22160K105 3639 60950 SH SOLE 60950 Deere & Company COM 244199105 297 5000 SH SOLE 5000 Discover Financial Services COM 254709108 2446 164150 SH SOLE 164150 DuPont de Nemours & Co. COM 263534109 2522 67725 SH SOLE 67725 EMC Corporation COM 268648102 3818 211660 SH SOLE 211660 Energy Transfer Partners LP COM 29273R109 1607 34300 SH SOLE 34300 Exxon Mobil Corporation COM 30231G102 3396 50697 SH SOLE 50697 Flextronics International Ltd. COM Y2573F102 3929 501185 SH SOLE 501185 General Electric Co COM 369604103 2715 149177 SH SOLE 149177 Hartford Financial Services COM 416515104 4442 156300 SH SOLE 156300 Honeywell Intl Inc COM 438516106 3277 72389 SH SOLE 72389 IBM Corp COM 459200101 5731 44685 SH SOLE 44685 Illinois Tool Works Inc. COM 452308109 1523 32155 SH SOLE 32155 Intel Corporation COM 458140100 4755 213344 SH SOLE 213344 JPMorgan Chase & Co COM 46625H100 3420 76429 SH SOLE 76429 Legg Mason Inc. COM 524901105 2423 84515 SH SOLE 84515 Lowes Companies Inc. COM 548661107 3447 142213 SH SOLE 142213 Micron Technology Inc COM 595112103 1440 138860 SH SOLE 138860 Microsoft Corporation COM 594918104 2968 101323 SH SOLE 101323 Motorola Inc. COM 620076109 727 103517 SH SOLE 103517 Nokia Corporation COM 654902204 1600 102950 SH SOLE 102950 Pfizer Inc. COM 717081103 1881 109658 SH SOLE 109658 Seagate Technology COM G7945J104 740 40510 SH SOLE 40510 Telkonet, Inc. COM 879604106 245 1529700 SH SOLE 1529700 Teva Pharmaceutical COM 881624209 3712 58853 SH SOLE 58853 Texas Instruments, Inc. COM 882508104 3072 125550 SH SOLE 125550 Verizon Communications, Inc. COM 92343V104 3664 118112 SH SOLE 118112 Wells Fargo & Co COM 949746101 2996 96257 SH SOLE 96257 Windstream Corporation COM 97381W104 2406 220900 SH SOLE 220900 Wyndham Worldwide Corp COM 98310W108 5414 210415 SH SOLE 210415 eBay Inc. COM 278642103 3880 143875 SH SOLE 143875 Storage Computer Corp. 86211A101 0 114275 SH SOLE 114275