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Monthly Money Market Holdings Report Mount Vernon Securities Lending Trust Prime Portfolio Unaudited Money Market Fund Holdings as-of 7/29/2011 Weighted Average Maturity (WAM) 23 Days Weighted Average Life (WAL) 73 Days Issuer Name Category CUSIP Barton Capital Asset Backed Commercial Paper 06945JAH6 25,000,000.00 9/1/2011 9/1/2011 0.25% 25,000,000.00 Bryant Park Funding Asset Backed Commercial Paper 11765KVN4 65,000,000.00 8/22/2011 8/22/2011 0.13% 64,995,070.84 Chariot Funding Asset Backed Commercial Paper 15963UV52 20,000,000.00 8/5/2011 8/5/2011 0.13% 19,999,711.11 Chariot Funding Asset Backed Commercial Paper 15963UVC7 26,000,000.00 8/12/2011 8/12/2011 0.13% 25,998,967.22 Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Chariot Funding Asset Backed Commercial Paper 15963UVK9 40,000,000.00 8/19/2011 8/19/2011 0.12% 39,997,600.00 Fairway Finance Asset Backed Commercial Paper 30601YHV0 19,000,000.00 8/9/2011 9/9/2011 0.23% 19,000,000.00 Fairway Finance Asset Backed Commercial Paper 30601WVC0 31,764,000.00 8/12/2011 8/12/2011 0.13% 31,762,738.26 Fairway Finance Asset Backed Commercial Paper 30601YHS7 25,000,000.00 8/19/2011 8/19/2011 0.23% 25,000,000.00 Fairway Finance Asset Backed Commercial Paper 30601YJF3 25,000,000.00 8/23/2011 12/23/2011 0.20% 25,000,000.00 Falcon Asset Securitization Asset Backed Commercial Paper 30603BW90 25,000,000.00 9/9/2011 9/9/2011 0.16% 24,995,666.66 Govco Asset Backed Commercial Paper 38362WVA6 50,000,000.00 8/10/2011 8/10/2011 0.12% 49,998,500.00 Govco Asset Backed Commercial Paper 38362WVC2 45,000,000.00 8/12/2011 8/12/2011 0.13% 44,998,212.50 Govco Asset Backed Commercial Paper 38362WVG3 45,000,000.00 8/16/2011 8/16/2011 0.12% 44,997,750.00 Govco Asset Backed Commercial Paper 38362WVJ7 10,000,000.00 8/18/2011 8/18/2011 0.12% 9,999,433.34 Grampian Funding Asset Backed Commercial Paper 38501AAA9 65,000,000.00 8/4/2011 9/2/2011 0.34% 65,000,000.00 Liberty Street Funding Asset Backed Commercial Paper 53127UV15 49,500,000.00 8/1/2011 8/1/2011 0.12% 49,500,000.00 Liberty Street Funding Asset Backed Commercial Paper 53127UV49 27,809,000.00 8/4/2011 8/4/2011 0.12% 27,808,721.91 Market Street Funding Asset Backed Commercial Paper 5705X5VB4 6,200,000.00 8/11/2011 8/11/2011 0.12% 6,199,793.33 Market Street Funding Asset Backed Commercial Paper 5705X5VF5 11,809,000.00 8/15/2011 8/15/2011 0.13% 11,808,402.99 Market Street Funding Asset Backed Commercial Paper 5705X5VH1 18,000,000.00 8/17/2011 8/17/2011 0.13% 17,998,960.00 Market Street Funding Asset Backed Commercial Paper 5705X5XD8 30,643,000.00 10/13/2011 10/13/2011 0.18% 30,631,815.31 July 29, 2011 Page 1 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Old Line Funding Asset Backed Commercial Paper 67983UVN0 50,000,000.00 8/22/2011 8/22/2011 0.13% 49,996,208.34 Old Line Funding Asset Backed Commercial Paper 67983UVP 40,000,000.00 8/23/2011 8/23/2011 0.13% 39,996,822.22 Sheffield Receivables Asset Backed Commercial Paper 82124MVG1 30,000,000.00 8/16/2011 8/16/2011 0.13% 29,998,375.00 Sheffield Receivables Asset Backed Commercial Paper 82124MVG 18,050,000.00 8/16/2011 8/16/2011 0.12% 18,049,097.50 Sheffield Receivables Asset Backed Commercial Paper 82124MVK3 44,000,000.00 8/19/2011 8/19/2011 0.12% 43,997,360.00 Thames Asset Global Securitization Asset Backed Commercial Paper 88324MVJ1 55,000,000.00 8/18/2011 8/18/2011 0.16% 54,995,844.44 Thunder Bay Funding Asset Backed Commercial Paper 88602UV23 3,200,000.00 8/2/2011 8/2/2011 0.11% 3,199,990.22 Thunder Bay Funding Asset Backed Commercial Paper 88602UVC1 8,023,000.00 8/12/2011 8/12/2011 0.13% 8,022,681.31 Thunder Bay Funding Asset Backed Commercial Paper 88602UVN7 50,000,000.00 8/22/2011 8/22/2011 0.13% 49,996,208.34 Thunder Bay Funding Asset Backed Commercial Paper 88602UVP2 45,000,000.00 8/23/2011 8/23/2011 0.13% 44,996,425.00 Variable Funding Capital Asset Backed Commercial Paper 92217MVC8 20,000,000.00 8/12/2011 8/12/2011 0.12% 19,999,266.67 Windmill Funding Asset Backed Commercial Paper 97342KV9 50,000,000.00 8/9/2011 8/9/2011 0.14% 49,998,444.44 Windmill Funding Asset Backed Commercial Paper 97342KVQ8 35,000,000.00 8/24/2011 8/24/2011 0.16% 34,996,422.22 Australia & New Zealand Banking Group/NY Certificate of Deposit 05252V6L4 50,000,000.00 8/12/2011 10/12/2011 0.19% 50,000,000.00 Banco Bilbao Vizcaya Argentaria/NY Certificate of Deposit 05945AFL3 50,000,000.00 8/9/2011 8/9/2011 0.52% 50,000,000.00 Bank of Montreal/Chicago IL Certificate of Deposit 06366UC89 60,000,000.00 8/1/2011 10/3/2011 0.22% 60,000,000.00 Bank of Nova Scotia/Houston Certificate of Deposit 06417DPB5 25,000,000.00 8/1/2011 9/29/2011 0.26% 25,001,464.16 Bank of Nova Scotia/Houston Certificate of Deposit 06417DXM2 50,000,000.00 8/1/2011 1/20/2012 0.30% 50,000,000.00 Bank of Nova Scotia/Houston Certificate of Deposit 06417DUM5 59,000,000.00 8/1/2011 12/8/2011 0.34% 59,031,737.37 Bank of Nova Scotia/Houston Certificate of Deposit 06417DE84 100,000,000.00 8/9/2011 10/10/2011 0.22% 100,000,000.00 Bank of Nova Scotia/Houston Certificate of Deposit 06416P4T3 9,000,000.00 9/6/2011 3/5/2012 0.50% 9,012,282.66 Bank of Nova Scotia/Houston Certificate of Deposit 06416P5B1 10,000,000.00 9/12/2011 3/12/2012 0.50% 10,015,977.62 Barclays Bank/NY Certificate of Deposit 06740MZG1 65,000,000.00 8/22/2011 10/21/2011 0.24% 65,000,000.00 BNP Paribas/NY Certificate of Deposit 0556M5Z57 36,000,000.00 8/31/2011 11/30/2011 0.56% 36,023,508.57 Canadian Imperial Bank of Commerce/NY Certificate of Deposit 13606XQ92 65,000,000.00 8/1/2011 8/8/2011 0.20% 65,000,000.00 Credit Agricole Corporate & Investment Bank/NY Certificate of Deposit 22532UBF0 25,000,000.00 9/6/2011 9/6/2011 0.25% 25,000,000.00 Credit Agricole Corporate & Investment Bank/NY Certificate of Deposit 22532Y4C7 65,000,000.00 10/11/2011 10/11/2011 0.41% 65,000,000.00 Credit Suisse/NY Certificate of Deposit 22550CYQ8 40,000,000.00 8/10/2011 8/10/2011 0.23% 40,000,000.00 Credit Suisse/NY Certificate of Deposit 22550CH95 25,000,000.00 8/25/2011 10/25/2011 0.24% 25,000,000.00 July 29, 2011 Page 2 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Credit Suisse/NY Certificate of Deposit 22550CPV7 50,000,000.00 8/30/2011 8/30/2011 0.70% 50,020,049.04 Deutsche Bank/NY Certificate of Deposit 25152XNA4 35,000,000.00 8/5/2011 11/10/2011 0.23% 35,000,000.00 Deutsche Bank/NY Certificate of Deposit 25152XMW7 39,000,000.00 8/5/2011 10/5/2011 0.28% 39,000,000.00 DnB NOR Bank/NY Certificate of Deposit 25600TR66 49,000,000.00 8/2/2011 8/2/2011 0.08% 49,000,000.00 DnB NOR Bank/NY Certificate of Deposit 25600TF93 10,000,000.00 8/10/2011 8/10/2011 0.18% 10,000,174.89 DnB NOR Bank/NY Certificate of Deposit 25600TC21 60,000,000.00 8/15/2011 10/14/2011 0.22% 60,000,000.00 Lloyds TSB Bank/NY Certificate of Deposit 53943NG44 60,000,000.00 8/1/2011 8/1/2011 0.47% 60,000,000.00 Lloyds TSB Bank/NY Certificate of Deposit 53944AS63 71,500,000.00 10/25/2011 10/25/2011 0.46% 71,503,356.30 National Australia Bank/NY Certificate of Deposit 63253TBM9 58,000,000.00 8/8/2011 10/6/2011 0.22% 58,000,000.00 National Australia Bank/NY Certificate of Deposit 63252XNA4 19,200,000.00 8/9/2011 11/9/2011 0.26% 19,200,188.52 National Australia Bank/NY Certificate of Deposit 63252XNG1 11,500,000.00 8/29/2011 12/1/2011 0.27% 11,501,302.79 National Australia Bank/NY Certificate of Deposit 63253TBW7 35,000,000.00 8/30/2011 5/21/2012 0.27% 35,000,000.00 Nordea Bank Finland/NY Certificate of Deposit 65557VTS0 9,000,000.00 8/1/2011 8/1/2011 0.14% 9,000,000.00 Nordea Bank Finland/NY Certificate of Deposit 65556QZA4 6,000,000.00 8/1/2011 2/1/2012 0.49% 6,006,580.99 Nordea Bank Finland/NY Certificate of Deposit 65557VUY5 50,000,000.00 9/22/2011 9/22/2011 0.18% 50,000,000.00 Nordea Bank Finland/NY Certificate of Deposit 65557VWH0 50,000,000.00 10/11/2011 10/11/2011 0.20% 50,000,000.00 Nordea Bank Finland/NY Certificate of Deposit 65556QST1 36,300,000.00 10/14/2011 10/14/2011 0.55% 36,323,777.87 Rabobank Nederland/NY Certificate of Deposit 74977MPR0 60,000,000.00 8/10/2011 11/10/2011 0.26% 59,999,160.28 Rabobank Nederland/NY Certificate of Deposit 74977MWK7 60,000,000.00 8/30/2011 5/29/2012 0.25% 60,000,000.00 Rabobank Nederland/NY Certificate of Deposit 74977MTK1 10,000,000.00 8/31/2011 3/30/2012 0.29% 10,000,000.00 Royal Bank of Canada/NY Certificate of Deposit 78009JX26 5,000,000.00 8/1/2011 11/10/2011 0.26% 5,001,184.81 Royal Bank of Canada/NY Certificate of Deposit 78009JQ81 10,000,000.00 8/1/2011 8/5/2011 0.26% 10,000,000.00 Royal Bank of Canada/NY Certificate of Deposit 78009J6A8 24,850,000.00 8/1/2011 6/18/2012 0.28% 24,850,000.00 Royal Bank of Canada/NY Certificate of Deposit 78009JY25 29,500,000.00 8/1/2011 12/2/2011 0.33% 29,510,082.05 Royal Bank of Canada/NY Certificate of Deposit 78009J3D5 50,000,000.00 9/6/2011 3/5/2012 0.25% 49,988,796.19 Royal Bank of Scotland/CT Certificate of Deposit 78011H2E4 10,000,000.00 8/17/2011 9/12/2011 0.43% 10,000,000.00 Royal Bank of Scotland/CT Certificate of Deposit 78011HR80 60,000,000.00 10/25/2011 10/25/2011 0.55% 60,000,000.00 Skandinaviska Enskilda Banken/NY Certificate of Deposit 83051AMT5 50,000,000.00 8/12/2011 8/12/2011 0.23% 50,000,000.00 Skandinaviska Enskilda Banken/NY Certificate of Deposit 83051ANZ0 15,000,000.00 9/14/2011 9/14/2011 0.22% 14,999,633.47 July 29, 2011 Page 3 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Skandinaviska Enskilda Banken/NY Certificate of Deposit 83051AJX0 8,000,000.00 10/3/2011 10/3/2011 0.49% 8,002,933.28 Skandinaviska Enskilda Banken/NY Certificate of Deposit 83051ANS6 25,000,000.00 10/7/2011 10/7/2011 0.28% 25,001,392.09 Skandinaviska Enskilda Banken/NY Certificate of Deposit 83051AMU2 64,000,000.00 11/18/2011 11/18/2011 0.44% 64,000,000.00 Societe Generale/NY Certificate of Deposit 83369RQP9 65,000,000.00 8/3/2011 9/23/2011 0.42% 65,000,000.00 Societe Generale/NY Certificate of Deposit 83369RTY7 35,000,000.00 8/4/2011 9/6/2011 0.42% 35,000,000.00 Societe Generale/NY Certificate of Deposit 83369RS69 39,600,000.00 9/9/2011 12/9/2011 0.34% 39,600,000.00 Societe Generale/NY Certificate of Deposit 83369RZW4 30,000,000.00 10/21/2011 10/21/2011 0.39% 30,000,000.00 Svenska Handelsbanken/NY Certificate of Deposit 86959BVV4 45,000,000.00 10/4/2011 10/4/2011 0.20% 44,999,999.81 Toronto Dominion Bank/NY Certificate of Deposit 89112YA86 50,000,000.00 8/3/2011 5/3/2012 0.21% 50,000,000.00 Toronto Dominion Bank/NY Certificate of Deposit 89112YW33 60,000,000.00 8/15/2011 8/15/2011 0.12% 60,000,000.00 Toronto Dominion Bank/NY Certificate of Deposit 89112YME0 65,300,000.00 8/30/2011 10/28/2011 0.26% 65,300,539.82 UBS/Stamford CT Certificate of Deposit 90267AXM3 10,000,000.00 8/4/2011 8/4/2011 0.46% 10,000,231.05 UBS/Stamford CT Certificate of Deposit 90267ATM8 5,000,000.00 8/5/2011 8/5/2011 0.88% 5,000,404.82 UBS/Stamford CT Certificate of Deposit 90267AL46 65,000,000.00 10/5/2011 10/14/2011 0.31% 65,000,000.00 Westpac Banking/NY Certificate of Deposit 96121H6X7 10,000,000.00 8/1/2011 11/21/2011 0.28% 10,000,000.00 Westpac Banking/NY Certificate of Deposit 96121TCB2 49,000,000.00 8/1/2011 8/31/2011 0.20% 49,000,000.00 Westpac Banking/NY Certificate of Deposit 96121TEJ3 65,000,000.00 8/1/2011 11/10/2011 0.20% 65,000,000.00 Westpac Banking/NY Certificate of Deposit 96121TEQ7 20,000,000.00 8/16/2011 6/15/2012 0.28% 20,000,000.00 Australia & New Zealand Banking Group Financial Company Commercial Paper 05253MAL8 50,000,000.00 8/5/2011 2/2/2012 0.25% 50,000,000.00 Australia & New Zealand Banking Group Financial Company Commercial Paper 05253MAG9 9,200,000.00 10/7/2011 10/7/2011 0.27% 9,200,954.92 Banco Bilbao Vizcaya Argentaria/London Financial Company Commercial Paper 05950YVC5 11,910,000.00 8/12/2011 8/12/2011 0.52% 11,908,107.63 Commonwealth Bank of Australia Financial Company Commercial Paper 20272AAS5 18,000,000.00 8/9/2011 11/4/2011 0.30% 17,999,791.79 Commonwealth Bank of Australia Financial Company Commercial Paper 20272ABB1 65,000,000.00 8/22/2011 5/21/2012 0.27% 65,000,000.00 Commonwealth Bank of Australia Financial Company Commercial Paper 20272EZF8 65,000,000.00 12/15/2011 12/15/2011 0.25% 64,938,611.11 Credit Suisse Financial Company Commercial Paper 2254EBV24 35,000,000.00 8/2/2011 8/2/2011 0.17% 34,999,834.72 July 29, 2011 Page 4 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost DnB NOR Bank Financial Company Commercial Paper 2332K4BD5 10,000,000.00 8/22/2011 8/22/2011 0.24% 10,000,000.00 DnB NOR Bank Financial Company Commercial Paper 2332K1XU9 15,000,000.00 10/28/2011 10/28/2011 0.26% 14,990,466.67 ING (US) Funding Financial Company Commercial Paper 4497W1V29 60,000,000.00 8/2/2011 8/2/2011 0.14% 59,999,775.00 ING (US) Funding Financial Company Commercial Paper 4497W1W10 35,000,000.00 9/1/2011 9/1/2011 0.19% 34,994,273.61 ING (US) Funding Financial Company Commercial Paper 4497W1X76 25,000,000.00 10/7/2011 10/7/2011 0.39% 24,981,854.17 Lloyds Bank Financial Company Commercial Paper 53943SW78 8,087,000.00 9/7/2011 9/7/2011 0.22% 8,085,171.44 National Australia Funding Financial Company Commercial Paper 63253KW60 40,000,000.00 9/6/2011 9/6/2011 0.16% 39,993,600.00 Reckitt Benckiser Treasury Services Financial Company Commercial Paper 7562E1V43 7,500,000.00 8/4/2011 8/4/2011 0.43% 7,499,731.25 Reckitt Benckiser Treasury Services Financial Company Commercial Paper 7562E1Y73 29,625,000.00 11/7/2011 11/7/2011 0.38% 29,594,354.58 Reckitt Benckiser Treasury Services Financial Company Commercial Paper 7562E1YM0 27,631,000.00 11/21/2011 11/21/2011 0.37% 27,599,193.65 Reckitt Benckiser Treasury Services Financial Company Commercial Paper 7562E0A48 20,000,000.00 1/4/2012 1/4/2012 0.35% 19,969,666.67 Royal Bank of Scotland Group Financial Company Commercial Paper 78009UW89 25,000,000.00 9/8/2011 9/8/2011 0.22% 24,994,194.44 Royal Bank of Scotland Group Financial Company Commercial Paper 78009UZ94 15,000,000.00 12/9/2011 12/9/2011 0.42% 14,977,250.00 Santander Commercial Paper Financial Company Commercial Paper 80280PHX8 40,000,000.00 9/1/2011 9/1/2011 0.68% 39,976,577.78 Skandinaviska Enskilada Banken Financial Company Commercial Paper 83050UY10 7,500,000.00 11/1/2011 11/1/2011 0.42% 7,491,950.00 Westpac Banking Financial Company Commercial Paper 9612C4BR1 65,000,000.00 8/15/2011 8/15/2011 0.21% 65,000,000.00 Federal Farm Credit Bank Government Agency Debt 31331JYR8 150,000,000.00 8/1/2011 8/17/2011 0.16% 150,000,000.00 Federal Home Loan Bank Government Agency Debt 313374SX9 75,000,000.00 8/1/2011 7/25/2012 0.18% 75,000,000.00 Federal Home Loan Bank Government Agency Debt 313370LV8 50,000,000.00 8/1/2011 8/12/2011 0.19% 50,000,000.00 July 29, 2011 Page 5 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Federal Home Loan Bank Government Agency Debt 313371HJ8 100,000,000.00 8/1/2011 10/20/2011 0.17% 100,000,000.00 Federal Home Loan Mortgage Corporation Government Agency Debt 3128X9MQ0 100,000,000.00 8/1/2011 11/9/2011 0.07% 99,977,688.17 ING Financial Markets Government Agency Repurchase Agreement CR2959185 600,000,000.00 8/1/2011 8/1/2011 0.36% 600,000,000.00 Jefferies & Company Government Agency Repurchase Agreement CR3034715 200,000,000.00 8/1/2011 8/1/2011 0.22% 200,000,000.00 Dreyfus Institutional Cash Advantage Fund, Institutional Shares Investment Company 26200V104 45,116,190.81 8/5/2011 8/5/2011 0.07% 45,116,190.81 Goldman Sachs Financial Square Money Market Fund Investment Company 38141W232 40,960,273.66 8/5/2011 8/5/2011 0.08% 40,960,273.66 Australia & New Zealand Banking Group Other Note 05252AAG6 14,050,000.00 8/4/2011 8/4/2011 0.87% 14,050,696.48 Australia & New Zealand Banking Group Other Note 05252AAU5 10,000,000.00 10/31/2011 1/30/2012 0.45% 10,008,025.00 Bank of New York Mellon Other Note 06406HBC2 3,735,000.00 9/23/2011 3/23/2012 0.35% 3,737,946.03 Commonwealth Bank of Australia Other Note 2027A0DQ9 36,900,000.00 8/4/2011 11/4/2011 0.57% 36,925,975.02 Commonwealth Bank of Australia Other Note 20271FAP1 11,000,000.00 10/27/2011 8/24/2012 0.40% 11,000,000.00 Credit Suisse Other Note 225434CG2 3,000,000.00 8/16/2011 8/16/2011 0.46% 3,000,285.65 Eksportfinans Other Note 28264QU28 25,000,000.00 8/15/2011 10/14/2011 0.24% 25,001,119.74 Eksportfinans Other Note 28264QT87 25,000,000.00 8/22/2011 10/22/2011 0.24% 25,001,125.82 Eksportfinans Other Note 28264QT46 4,500,000.00 8/26/2011 8/26/2011 0.26% 4,500,214.11 General Electric Capital Other Note 36962G2N3 50,000,000.00 8/15/2011 8/15/2011 0.33% 49,998,951.30 General Electric Capital Other Note 36962GM76 25,292,000.00 8/22/2011 11/21/2011 0.44% 25,306,688.56 General Electric Capital Other Note 36962GV68 750,000.00 9/2/2011 3/2/2012 0.36% 750,267.34 General Electric Capital Other Note 36962G3J1 6,500,000.00 9/28/2011 9/28/2011 0.60% 6,504,057.94 General Electric Capital Other Note 36962G2M5 20,759,000.00 10/11/2011 4/10/2012 0.37% 20,773,943.50 General Electric Capital Other Note 36962G3L6 20,000,000.00 10/21/2011 10/21/2011 0.50% 20,012,681.83 General Electric Capital Other Note 36962GR89 39,900,000.00 10/27/2011 7/27/2012 0.42% 39,954,487.48 International Bank for Reconstruction & Development Other Note 45905UJD7 75,000,000.00 8/1/2011 7/25/2012 0.23% 75,000,000.00 Metropolitan Life Global Funding Other Note 59217EAP9 32,910,000.00 9/15/2011 3/15/2012 0.50% 32,933,139.75 Metropolitan Life Global Funding Other Note 59217GAH2 49,500,000.00 10/6/2011 7/6/2012 0.41% 49,500,000.00 National Australia Bank Other Note 6325C0BL4 50,000,000.00 8/19/2011 8/19/2011 0.27% 50,000,000.00 National Australia Bank Other Note 6325C0BJ9 20,000,000.00 10/24/2011 1/23/2012 0.45% 20,017,969.61 Nordea Bank Other Note 65557NAF6 65,000,000.00 8/18/2011 8/17/2012 0.36% 65,000,000.00 July 29, 2011 Page 6 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Rabobank Nederland Other Note 74977RBT0 35,000,000.00 8/5/2011 8/5/2011 0.47% 35,000,927.80 Rabobank Nederland Other Note 74977RBW3 50,000,000.00 9/28/2011 9/28/2011 0.40% 50,018,382.26 Rabobank Nederland Other Note 74977RCH5 5,780,000.00 10/26/2011 1/26/2012 0.45% 5,785,727.63 Skandinaviska Enskilada Banken - Time Deposit Other Note CR2150918 50,000,000.00 8/1/2011 8/1/2011 0.12% 50,000,000.00 Svenska Handelsbanken Other Note 86959JBA5 50,000,000.00 8/9/2011 8/9/2012 0.37% 50,000,000.00 Svenska Handelsbanken Other Note 86959JBR8 15,000,000.00 9/8/2011 8/8/2012 0.29% 15,000,000.00 UBS Other Note 90261XFV9 4,850,000.00 9/29/2011 9/29/2011 1.50% 4,860,236.51 Wachovia Other Note 929903CG5 50,000,000.00 10/15/2011 10/15/2011 0.38% 50,017,812.50 Westpac Banking Other Note 91621CAX9 53,250,000.00 8/15/2011 4/13/2012 0.27% 53,250,000.00 Westpac Banking Other Note 9612E0AY3 2,300,000.00 10/21/2011 10/21/2011 0.55% 2,301,653.75 BNP Paribas Securities Other Repurchase Agreement CR2932802 150,000,000.00 8/1/2011 8/1/2011 0.23% 150,000,000.00 ING Financial Markets Other Repurchase Agreement CR2945911 100,000,000.00 8/1/2011 8/1/2011 0.25% 100,000,000.00 J.P. Morgan Securities Other Repurchase Agreement CR2919452 145,000,000.00 8/1/2011 8/1/2011 0.21% 145,000,000.00 Credit Suisse Securities (USA) Treasury Repurchase Agreement CR301937 64,556,000.00 8/1/2011 8/1/2011 0.14% 64,556,000.00 Abag Finance Authority for Nonprofit, Point Loma Nazarene University Variable Rate Demand Note 00037CNH9 16,930,000.00 8/5/2011 8/5/2011 0.06% 16,930,000.00 Aurora Hospital Revenue, Children's Hospital, Class C Variable Rate Demand Note 05155XBV0 14,340,000.00 8/5/2011 8/5/2011 0.06% 14,340,000.00 Calleguas-Las Virgines Municipal Water District, Public Financing Authority Variable Rate Demand Note 13124CEC7 17,240,000.00 8/5/2011 8/5/2011 0.06% 17,240,000.00 City of Parma Hospital Revenue Bonds, Parma Community General Hospital, Series 2006A Variable Rate Demand Note 701747CW5 6,250,000.00 8/5/2011 8/5/2011 0.06% 6,250,000.00 Colorado Educational & Cultural Facilities Authority Revenue, Mevista of Greater L.A. Variable Rate Demand Note 196458YZ0 4,495,000.00 8/5/2011 8/5/2011 0.12% 4,495,000.00 Delaware Economic Development Authority, Peninsula United Methodist Homes, Series 2007A Variable Rate Demand Note 246387MN1 8,300,000.00 8/1/2011 8/1/2011 0.17% 8,300,000.00 District of Columbia Revenue, Carnegie Endow International Peace Variable Rate Demand Note 25483VAE4 33,250,000.00 8/5/2011 8/5/2011 0.06% 33,250,000.00 Franklin County, Presbyterian Health Care Variable Rate Demand Note 353180HF2 18,250,000.00 8/5/2011 8/5/2011 0.06% 18,250,000.00 Halifax Hospital Medical Center Variable Rate Demand Note 405815HE4 19,500,000.00 8/5/2011 8/5/2011 0.10% 19,500,000.00 Hamilton County Hospital Facilities, Elizabeth Gamble Deacones Variable Rate Demand Note 407272J38 7,900,000.00 8/5/2011 8/5/2011 0.06% 7,900,000.00 Highlands County Health Facilities Authority, Adventist Health/SunBelt Group Variable Rate Demand Note 431022SB9 9,375,000.00 8/5/2011 8/5/2011 0.06% 9,375,000.00 July 29, 2011 Page 7 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Highlands County Health Facilities Authority, Adventist Health/SunBelt Group Variable Rate Demand Note 431022RV6 7,500,000.00 8/5/2011 8/5/2011 0.06% 7,500,000.00 Houston Airport Systems Revenue, City of Houston Variable Rate Demand Note 4423484B1 13,230,000.00 8/5/2011 8/5/2011 0.06% 13,230,000.00 Illinois Finance Authority Revenue, Carle Foundation Variable Rate Demand Note 45200FVG1 10,500,000.00 8/5/2011 8/5/2011 0.04% 10,500,000.00 Illinois Finance Authority, Elmhurst Memorial Healthcare, Series 2008B Variable Rate Demand Note 45200FHA0 33,600,000.00 8/1/2011 8/1/2011 0.15% 33,600,000.00 Illinois State Toll Highway Authority Variable Rate Demand Note 452252GL7 12,000,000.00 8/5/2011 8/5/2011 0.04% 12,000,000.00 Indiana Finace Authority Hospital Revenue, Parkview Health System, Series 2009D Variable Rate Demand Note 45471AAS1 14,600,000.00 8/5/2011 8/5/2011 0.04% 14,600,000.00 Indiana Finance Authority, Depauw University, Series 2008B Variable Rate Demand Note 455057NK1 4,000,000.00 8/5/2011 8/5/2011 0.06% 4,000,000.00 Iowa Financial Authority, Wesley Retirement Services Variable Rate Demand Note 46246KXT4 3,250,000.00 8/5/2011 8/5/2011 0.07% 3,250,000.00 Kentucky Economic Development Finance Authority, Hospital Facilities, Baptist Healthcare, Series B-3 Variable Rate Demand Note 49126KFS5 2,000,000.00 8/5/2011 8/5/2011 0.05% 2,000,000.00 Maryland Health & Higher Education, University of Maryland Medical Systems Variable Rate Demand Note 574217G74 17,415,000.00 8/5/2011 8/5/2011 0.10% 17,415,000.00 Maryland State Health & Higher Education Authority, Pickersgill Variable Rate Demand Note 574217VL6 17,530,000.00 8/5/2011 8/5/2011 0.07% 17,530,000.00 Michigan State Building Authority Variable Rate Demand Note 594614U56 11,800,000.00 8/5/2011 8/5/2011 0.11% 11,800,000.00 Minneapolis & St. Paul Housing, Alliance Health Systems Variable Rate Demand Note 603695FQ5 18,500,000.00 8/5/2011 8/5/2011 0.06% 18,500,000.00 Mississippi Business Finance, Chevron USA Variable Rate Demand Note 60528ABS2 21,000,000.00 8/5/2011 8/5/2011 0.04% 21,000,000.00 New Hampshire Higher Educational & Health Facilities, Hunt Community Variable Rate Demand Note 6446182W9 9,420,000.00 8/5/2011 8/5/2011 0.04% 9,420,000.00 North Broward Hospital District Variable Rate Demand Note 657883CP7 30,100,000.00 8/5/2011 8/5/2011 0.15% 30,100,000.00 North Carolina Medical Care Commission, Angel Medical Center, Series 2007 Variable Rate Demand Note 6579026S6 2,200,000.00 8/5/2011 8/5/2011 0.10% 2,200,000.00 Ohio State Air Quality Development Authority, Ohio Valley Electric, Series 2009B Variable Rate Demand Note 677525TH0 8,700,000.00 8/5/2011 8/5/2011 0.04% 8,700,000.00 Ohio State Higher Education Facilities, Case Western Reserve University Variable Rate Demand Note 67756BVL1 8,000,000.00 8/5/2011 8/5/2011 0.06% 8,000,000.00 Philadelphia Authority for Industrial Development, Newcourtland Elder Services Variable Rate Demand Note 717818K31 620,000.00 8/1/2011 8/1/2011 0.17% 620,000.00 Southeastern Pennsylvania Transportation Authority Variable Rate Demand Note 842039AB5 21,660,000.00 8/1/2011 8/1/2011 0.17% 21,660,000.00 St. Joseph County Hospital Authority, Memorial Health System Variable Rate Demand Note 79061BCW3 12,900,000.00 8/5/2011 8/5/2011 0.08% 12,900,000.00 Sweetwater County Pollution Control, PacifiCorp, Series 1992A Variable Rate Demand Note 870487CH6 1,300,000.00 8/5/2011 8/5/2011 0.06% 1,300,000.00 The Mobile Downtown Redevelopment Authority. Austal USA Variable Rate Demand Note 60715RAA8 4,000,000.00 8/5/2011 8/5/2011 0.04% 4,000,000.00 The Mobile Downtown Redevelopment Authority. Austal USA Variable Rate Demand Note 60715RAB6 8,000,000.00 8/5/2011 8/5/2011 0.04% 8,000,000.00 July 29, 2011 Page 8 of 9 Issuer Name (continued) Category CUSIP Principal Amount Maturity Date Final Legal Coupon/Yield1 Maturity Date Amortized Cost Vermont State Student Assistance, Series C1 Variable Rate Demand Note 92428CFK5 8,290,000.00 8/5/2011 8/5/2011 0.08% 8,290,000.00 Vermont State Student Assistance, Series C2 Variable Rate Demand Note 92428CFL3 5,825,000.00 8/5/2011 8/5/2011 0.19% 5,825,000.00 ¹Represents either the annualized yield at the date of purchase, the stated coupon rate, or, for floating rate securities, the rate at period-end The information contained in this report relates to Mount Vernon Securities Lending Prime Portfolio (the "Portfolio"), a series of Mount Vernon Securities Lending Trust (the "Trust"). Shares of the Portfolio have not been registered under the Securities Act of 1933, as amended (the "1933 Act"), and, because they are offered only on a private placement basis to a limited number of qualified investors who participate in U.S. Bank's securities lending program, it is anticipated that they will be exempt from the registration provisions of the 1933 Act. Shares of the Portfolio may not be transferred or resold without registration under the 1933 Act, or pursuant to an exemption from such registration. However, shares of the Portfolio may be redeemed in accordance with the terms of the Trust's Agreement and Declaration of Trust and the Trust's offering memorandum. Effective November 30, 2010, the Portfolio is required to provide the Securities and Exchange Commission (“SEC”) with a monthly electronic filing of more detailed portfolio holdings information on Form N-MFP. The SEC will make the Form N-MFP available to the public 60 days after the end of the month to which the filing pertains. Beginning on or about January 31, 2011, you may access the Portfolio’s publicly available Form N-MFP filings on the SEC’s website by clicking here. The fund’s holdings are as of the date indicated and are subject to change without notice. The listing of holdings does not constitute a recommendation of any individual security. Current and future holdings are subject to risk. Security names may not represent the official legal name. Please read the fund’s most recent annual report for an audited portfolio holdings list. An investment in money market funds is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other governmental agency. Although these funds seek to preserve the value of your investment at $1.00 per share, it is possible to lose money by investing in these funds. U.S. Bancorp Asset Management, Inc., is a registered investment advisor and subsidiary of U.S. Bank National Association, manages the portfolio. NOT FDIC INSURED – NO BANK GUARANTEE – MAY LOSE VALUE July 29, 2011 Page 9 of 9