UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F
FORM 13F COVER PAGE
Report for the Calendar Year or Quarter Ended: December 31, 1999
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: 16 East Eager Street
Baltimore, Md 21202
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: Mark C. Sullivan
Title: Vice President
Phone: 410-539-5588
Signature, Place, and Date of Signing:
Mark C. Sullivan Baltimore, Maryland February 3, 2000
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.
<PAGE>
FORM 13F SUMMARY PAGE
Report Summary:
Number of Other Included Managers: 0
Form 13f Information Table Entry Total: 76
Form 13F Information Table Value Total: $142,448
List of Other Included Managers:
No. 13F File Number Name
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<TABLE>
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
- ------------------------------ ---------------- --------- -------- -------- --- ---- ------- ------------ -------- -------- --------
<S> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C> <C>
AES Corp. Con.Pfd. PFD 00808N202 555 9000 SH SOLE 9000 9000 9000
3 Com COM 885535104 5302 112800 SH SOLE 112800 112800 112800
AES Corp. COM 00130H105 3431 45900 SH SOLE 45900 45900 45900
AT&T COM 030177109 501 9861 SH SOLE 9861 9861 9861
AXA Financial, Inc. COM 002451102 524 15400 SH SOLE 15400 15400 15400
Aames Financial COM 00253A101 163 217600 SH SOLE 217600 217600 217600
Allstate Corporation COM 020002101 2308 95900 SH SOLE 95900 95900 95900
Altera COM 021441100 1006 20300 SH SOLE 20300 20300 20300
American Home Prodts COM 026609107 204 5200 SH SOLE 5200 5200 5200
Amgen Inc COM 031162100 300 5000 SH SOLE 5000 5000 5000
Apple Computer COM 037833100 4220 41050 SH SOLE 41050 41050 41050
Atlantic Richfield COM 048825103 3662 42330 SH SOLE 42330 42330 42330
BCE Inc COM 05534B109 316 3500 SH SOLE 3500 3500 3500
Bankamerica Corp COM 066050105 282 5625 SH SOLE 5625 5625 5625
Bestfoods COM 08658U101 3937 74900 SH SOLE 74900 74900 74900
Boston Scientific Corp COM 101137107 1807 82600 SH SOLE 82600 82600 82600
Bristol Myers Squibb COM 110122108 2284 35581 SH SOLE 35581 35581 35581
Burlington Coat Factry COM 121579106 1311 94500 SH SOLE 94500 94500 94500
Carnival Corp COM 143658102 5317 111200 SH SOLE 111200 111200 111200
Cendant COM 151313103 4824 181600 SH SOLE 181600 181600 181600
Chase Manhattan Corp COM 16161A108 2424 31198 SH SOLE 31198 31198 31198
Cisco System Inc. COM 17275R102 213 1986 SH SOLE 1986 1986 1986
Citigroup Inc. COM 173034109 5003 89839 SH SOLE 89839 89839 89839
Collins Inds Inc COM 194858106 52 10500 SH SOLE 10500 10500 10500
Compaq Computer COM 204493100 2598 95996 SH SOLE 95996 95996 95996
Delphi Automotive Systems COM 247126105 325 20666 SH SOLE 20666 20666 20666
Duramed Pharmaceuticals Inc. COM 266354109 1748 245400 SH SOLE 245400 245400 245400
Electro Scientific Ind COM 285229100 241 3300 SH SOLE 3300 3300 3300
Endesa COM 29258N107 1514 75000 SH SOLE 75000 75000 75000
Exxon Mobil Inc. COM 30231G102 440 5466 SH SOLE 5466 5466 5466
Fannie Mae COM 313586109 237 3800 SH SOLE 3800 3800 3800
Ferro Corp. COM 315405100 383 17400 SH SOLE 17400 17400 17400
First Data Corp. COM 319963104 3087 62600 SH SOLE 62600 62600 62600
Freddie Mac COM 313400301 3588 76241 SH SOLE 76241 76241 76241
GTE Corp COM 362320103 4241 60100 SH SOLE 60100 60100 60100
Gap Inc Del COM 364760108 4181 90900 SH SOLE 90900 90900 90900
General Electric COM 369604103 5029 32498 SH SOLE 32498 32498 32498
General Motors Corp. COM 370442105 3074 42295 SH SOLE 42295 42295 42295
Gillette Co COM 375766102 1293 31400 SH SOLE 31400 31400 31400
Harnischfeger Industries COM 413345109 100 245800 SH SOLE 245800 245800 245800
Health Care Reit COM 42217K106 330 21800 SH SOLE 21800 21800 21800
Honeywell International, Inc. COM 438516106 4620 80079 SH SOLE 80079 80079 80079
Int Business Machine COM 459200101 1406 13034 SH SOLE 13034 13034 13034
Intel Corp COM 458140100 3138 38128 SH SOLE 38128 38128 38128
LTC Properties COM 502175102 299 35400 SH SOLE 35400 35400 35400
Lucent Technologies Inc. COM 549463107 571 7609 SH SOLE 7609 7609 7609
MCI Worldcom Inc COM 55268B106 4046 76245 SH SOLE 76245 76245 76245
MCN Energy Group, Inc. COM 55267J100 2472 104100 SH SOLE 104100 104100 104100
MGIC Inv. Group COM 552848103 2281 37900 SH SOLE 37900 37900 37900
Merck & Co. COM 589331107 608 9056 SH SOLE 9056 9056 9056
Micron Tech Inc COM 595112103 5734 73750 SH SOLE 73750 73750 73750
Pan Pacific COM 69806L104 170 10400 SH SOLE 10400 10400 10400
Pfizer Inc. COM 717081103 2037 62800 SH SOLE 62800 62800 62800
Philip Morris COM 718154107 1658 72092 SH SOLE 72092 72092 72092
Pitney Bowes COM 724479100 802 16600 SH SOLE 16600 16600 16600
Playtex COM 72813P100 4077 265200 SH SOLE 265200 265200 265200
Post Pptys COM 737464107 920 24042 SH SOLE 24042 24042 24042
SBC Communications, Inc. COM 78387G103 470 9648 SH SOLE 9648 9648 9648
Saks Holdings COM 79377W108 1799 115580 SH SOLE 115580 115580 115580
Santa Fe International COM G7805C108 1954 75500 SH SOLE 75500 75500 75500
Seagate Technologies COM 811804103 1386 29756 SH SOLE 29756 29756 29756
Sears Roebuck & Co COM 812387108 1953 64300 SH SOLE 64300 64300 64300
Sizeler Prop. Inv. COM 830137105 294 36200 SH SOLE 36200 36200 36200
Sprint Corp COM 852061100 269 4000 SH SOLE 4000 4000 4000
Sun Microsystems Inc COM 866810104 313 4038 SH SOLE 4038 4038 4038
Texas Instruments COM 882508104 1415 14644 SH SOLE 14644 14644 14644
Thermo Electron COM 883556102 2697 179800 SH SOLE 179800 179800 179800
Tidewater COM 886423102 1645 45700 SH SOLE 45700 45700 45700
Tyco Intl Ltd New COM 902124106 265 6794 SH SOLE 6794 6794 6794
UCAR International COM 90262K109 1931 108400 SH SOLE 108400 108400 108400
Ultramar Diamond Shamrock Corp COM 903912103 1216 53600 SH SOLE 53600 53600 53600
Unocal Corporation COM 915289102 2839 84600 SH SOLE 84600 84600 84600
Vodafone Group PLC COM 92857T107 223 4495 SH SOLE 4495 4495 4495
Wells Fargo COM 949740104 2144 53032 SH SOLE 53032 53032 53032
Washington Real Estate Investm COM 939653101 592 39500 SH SOLE 39500 39500 39500
Xerox Corporation COM 984121103 1849 81498 SH SOLE 81498 81498 81498
</TABLE>
