Monthly Money Market Holdings Report

Mount Vernon Securities Lending Trust Prime Portfolio Unaudited Money Market Fund Holdings as-of 3/31/2014 Weighted Average Maturity (WAM)

13 Days

Weighted Average Life (WAL)

92 Days

Issuer Name

Category

CUSIP

Barton Capital LLC

Asset Backed Commercial Paper

06945JCD3

25,000,000.00

4/21/2014

5/21/2014

0.18%

25,000,000.00

Fairway Finance Corp

Asset Backed Commercial Paper

30601YNV3

24,000,000.00

4/8/2014

7/8/2014

0.17%

24,000,000.00

Fairway Finance Corp

Asset Backed Commercial Paper

30601YPC3

34,000,000.00

4/10/2014

9/10/2014

0.17%

34,000,000.00

Gemini Securitization Corp LLC

Asset Backed Commercial Paper

3686M1FC5

25,000,000.00

6/12/2014

6/12/2014

0.23%

24,988,500.00

Principal Amount Maturity Date

Final Legal Coupon/Yield Maturity Date

Amortized Cost

Gotham Funding Corp

Asset Backed Commercial Paper

38346MDB7

15,000,000.00

4/11/2014

4/11/2014

0.16%

14,999,333.33

Kells Funding LLC

Asset Backed Commercial Paper

48803AED3

49,000,000.00

4/7/2014

4/7/2014

0.19%

49,000,000.00

Kells Funding LLC

Asset Backed Commercial Paper

48803AEJ0

50,000,000.00

4/9/2014

10/9/2014

0.20%

50,000,000.00

Kells Funding LLC

Asset Backed Commercial Paper

48803AFQ3

48,500,000.00

4/13/2014

7/14/2014

0.18%

48,500,000.00

Manhattan Asset Funding Co

Asset Backed Commercial Paper

56274MD33

32,500,000.00

4/3/2014

4/3/2014

0.18%

32,499,675.00

Manhattan Asset Funding Co

Asset Backed Commercial Paper

56274ME16

16,500,000.00

5/1/2014

5/1/2014

0.18%

16,497,525.00

Nieuw Amsterdam Receivables Corp

Asset Backed Commercial Paper

65409SE95

25,000,000.00

5/9/2014

5/9/2014

0.15%

24,996,041.66

Old Line Funding LLC

Asset Backed Commercial Paper

67984YAC8

48,500,000.00

4/1/2014

5/6/2014

0.18%

48,500,000.00

Old Line Funding LLC

Asset Backed Commercial Paper

67984YAE4

50,000,000.00

4/15/2014

8/15/2014

0.18%

50,000,000.00

Thunder Bay Funding LLC

Asset Backed Commercial Paper

88603KAB7

25,000,000.00

4/7/2014

9/5/2014

0.19%

25,000,000.00

Banco del Estado de Chile/NY

Certificate of Deposit

05962PL64

50,000,000.00

4/1/2014

8/15/2014

0.24%

50,000,000.00

Banco del Estado de Chile/NY

Certificate of Deposit

05962PG52

48,500,000.00

4/15/2014

5/15/2014

0.22%

48,500,000.00

Bank of Montreal/Chicago

Certificate of Deposit

06366LCP1

73,500,000.00

4/22/2014

9/15/2014

0.26%

73,500,000.00

Bank of Montreal/Chicago

Certificate of Deposit

06366AH62

50,000,000.00

4/29/2014

10/29/2014

0.22%

50,000,000.00

Bank of Montreal/Chicago

Certificate of Deposit

06366BEW6

25,000,000.00

6/16/2014

8/15/2014

0.18%

25,000,000.00

Bank of Nova Scotia/Houston

Certificate of Deposit

06417HFT8

50,000,000.00

4/1/2014

2/25/2015

0.24%

50,000,000.00

Bank of Nova Scotia/Houston

Certificate of Deposit

06417FZ29

48,500,000.00

4/1/2014

8/22/2014

0.26%

48,500,000.00

March 31, 2014 Page 1 of 7

Issuer Name (continued)

Category

CUSIP

Principal Amount Maturity Date

Final Legal Coupon/Yield Maturity Date

Amortized Cost

Bank of Nova Scotia/Houston

Certificate of Deposit

06417FVF4

7,000,000.00

4/1/2014

5/13/2014

0.24%

7,000,000.00

Bank of Nova Scotia/Houston

Certificate of Deposit

06417EL76

49,000,000.00

4/9/2014

9/5/2014

0.29%

49,000,000.00

Bank of Tokyo-Mitsubishi UFJ Ltd/NY

Certificate of Deposit

06538GZK1

54,000,000.00

4/7/2014

7/7/2014

0.22%

54,000,000.00

Bank of Tokyo-Mitsubishi UFJ Ltd/NY

Certificate of Deposit

06538GKX9

54,000,000.00

4/7/2014

4/7/2014

0.21%

54,000,000.00

Canadian Imperial Bank of Commerce/NY

Certificate of Deposit

13606YYS9

45,750,000.00

4/1/2014

5/16/2014

0.28%

45,750,000.00

Canadian Imperial Bank of Commerce/NY

Certificate of Deposit

13606YF27

51,500,000.00

4/1/2014

8/14/2014

0.27%

51,511,542.52

Canadian Imperial Bank of Commerce/NY

Certificate of Deposit

13606Y2C9

50,000,000.00

4/1/2014

2/12/2015

0.23%

50,000,000.00

Canadian Imperial Bank of Commerce/NY

Certificate of Deposit

13606YME3

3,420,000.00

4/30/2014

7/31/2014

0.60%

3,424,276.14

Citibank

Certificate of Deposit

17304UNS5

50,000,000.00

4/17/2014

6/17/2014

0.22%

50,000,000.00

Credit Suisse/NY

Certificate of Deposit

22549THW1

25,000,000.00

4/8/2014

4/8/2014

0.25%

25,000,436.66

Credit Suisse/NY

Certificate of Deposit

22549TKA5

48,500,000.00

4/24/2014

10/24/2014

0.22%

48,500,000.00

Credit Suisse/NY

Certificate of Deposit

22549TVS4

25,000,000.00

5/28/2014

5/28/2014

0.19%

25,000,000.00

Deutsche Bank AG/NY

Certificate of Deposit

25153DBR3

53,500,000.00

4/1/2014

4/30/2014

0.48%

53,500,000.00

Deutsche Bank AG/NY

Certificate of Deposit

25153DBU6

55,000,000.00

4/1/2014

8/22/2014

0.32%

55,000,000.00

DnB Bank ASA/NY

Certificate of Deposit

23330L6M3

50,000,000.00

4/7/2014

6/6/2014

0.16%

50,000,000.00

DnB Bank ASA/NY

Certificate of Deposit

23330L5B8

50,000,000.00

4/7/2014

8/7/2014

0.20%

50,000,000.00

National Australia Bank/NY

Certificate of Deposit

63253TWF1

70,000,000.00

4/7/2014

7/7/2014

0.17%

70,000,000.00

National Australia Bank/NY

Certificate of Deposit

63253TVT2

50,000,000.00

4/23/2014

10/23/2014

0.22%

49,999,775.34

Nordea Bank Finland PLC/NY

Certificate of Deposit

65558EXA1

50,000,000.00

4/7/2014

4/7/2014

0.16%

50,000,000.00

Rabobank Nederland NV/NY

Certificate of Deposit

21684BFX7

50,000,000.00

4/10/2014

7/10/2014

0.27%

50,000,000.00

Rabobank Nederland NV/NY

Certificate of Deposit

21684BLK8

53,500,000.00

4/14/2014

1/13/2015

0.26%

53,500,000.00

Rabobank Nederland NV/NY

Certificate of Deposit

21684BKE3

50,000,000.00

4/30/2014

4/30/2014

0.17%

50,000,000.00

Royal Bank of Canada/NY

Certificate of Deposit

78009NJE7

58,500,000.00

4/4/2014

4/2/2015

0.33%

58,500,000.00

Skandinaviska Enskilda Banken AB/NY

Certificate of Deposit

83051HVF0

50,000,000.00

4/4/2014

8/4/2014

0.21%

50,000,000.00

Skandinaviska Enskilda Banken AB/NY

Certificate of Deposit

83051HRH1

50,000,000.00

4/30/2014

4/30/2014

0.21%

50,000,000.00

Svenska Handelsbanken AB/NY

Certificate of Deposit

86958C4Y7

25,000,000.00

5/21/2014

5/21/2014

0.16%

24,999,999.85

Swedbank AB/NY

Certificate of Deposit

87019THY1

53,500,000.00

4/22/2014

8/18/2014

0.22%

53,499,100.22

Swedbank AB/NY

Certificate of Deposit

87019TCR1

48,500,000.00

4/22/2014

5/20/2014

0.18%

48,500,000.00

Toronto-Dominion Bank/NY

Certificate of Deposit

89112W5U7

23,500,000.00

4/17/2014

6/17/2014

0.20%

23,500,000.00

March 31, 2014 Page 2 of 7

Issuer Name (continued)

Category

CUSIP

Principal Amount Maturity Date

Final Legal Coupon/Yield Maturity Date

Amortized Cost

Toronto-Dominion Bank/NY

Certificate of Deposit

89112TDF8

30,000,000.00

4/24/2014

7/24/2014

0.22%

30,000,000.00

Wells Fargo Bank

Certificate of Deposit

9497P6J58

48,500,000.00

4/1/2014

8/6/2014

0.22%

48,500,000.00

Wells Fargo Bank

Certificate of Deposit

9497P6W61

60,000,000.00

4/1/2014

5/27/2014

0.18%

60,000,000.00

Wells Fargo Bank

Certificate of Deposit

9497P63P1

48,500,000.00

4/1/2014

2/4/2015

0.25%

48,500,000.00

ANZ National International Ltd

Financial Company Commercial Paper

00182HBW1

50,000,000.00

4/7/2014

11/7/2014

0.25%

50,000,000.00

ASB Finance LTD London

Financial Company Commercial Paper

0020P5DX4

42,400,000.00

5/12/2014

5/12/2014

0.27%

42,400,000.00

HSBC Bank Plc

Financial Company Commercial Paper

40433FCN7

53,500,000.00

4/15/2014

8/15/2014

0.26%

53,500,000.00

Macquarie Bank LTD

Financial Company Commercial Paper

55607NBY5

30,000,000.00

4/22/2014

5/21/2014

0.33%

30,000,000.00

Macquarie Bank LTD

Financial Company Commercial Paper

55607NCD0

53,500,000.00

4/22/2014

8/20/2014

0.32%

53,500,000.00

Macquarie Bank LTD

Financial Company Commercial Paper

55607NBX7

23,500,000.00

5/14/2014

5/14/2014

0.36%

23,500,000.00

Nederlandse Waterschapsbank NV

Financial Company Commercial Paper

63975WAU2

15,500,000.00

4/1/2014

7/1/2014

0.20%

15,500,925.64

Nederlandse Waterschapsbank NV

Financial Company Commercial Paper

63975WBB3

20,000,000.00

4/7/2014

12/5/2014

0.24%

20,000,000.00

Nederlandse Waterschapsbank NV

Financial Company Commercial Paper

63975WAC2

20,000,000.00

4/8/2014

7/7/2014

0.26%

20,000,511.65

Nederlandse Waterschapsbank NV

Financial Company Commercial Paper

63975WBD9

30,000,000.00

4/23/2014

12/23/2014

0.24%

30,000,000.00

Toyota Motor Credit Corp

Financial Company Commercial Paper

89233ABG3

25,000,000.00

4/14/2014

7/25/2014

0.19%

25,000,000.00

Federal Home Loan Bank

Government Agency Debt

3133815J0

75,000,000.00

4/1/2014

4/25/2014

0.15%

75,000,000.00

BNP Paribas Securities Corp

Government Agency Repurchase Agreement

CR3028600

150,000,000.00

4/1/2014

4/1/2014

0.08%

150,000,000.00

Deutsche Bank Securities Incorporated

Government Agency Repurchase Agreement

CR3051339

75,000,000.00

4/1/2014

4/1/2014

0.12%

75,000,000.00

ING Financial Markets LLC

Government Agency Repurchase Agreement

CR3089602

100,000,000.00

4/1/2014

4/1/2014

0.07%

100,000,000.00

Societe Generale/NY

Government Agency Repurchase Agreement

CR3141270

100,000,000.00

4/1/2014

4/1/2014

0.07%

100,000,000.00

March 31, 2014 Page 3 of 7

Issuer Name (continued)

Category

CUSIP

Principal Amount Maturity Date

Final Legal Coupon/Yield Maturity Date

Amortized Cost

Dreyfus Institutional Cash Advantage Fund

Investment Company

26200V104

82,520,376.46

4/7/2014

4/7/2014

0.05%

82,520,376.46

Goldman Sachs Financial Square Money Market Fund

Investment Company

38141W232

85,558,007.35

4/7/2014

4/7/2014

0.07%

85,558,007.35

Bank of America

Other Note

06052W2X0

50,000,000.00

4/8/2014

4/8/2014

0.20%

50,000,000.00

Bank of America

Other Note

06052W5N9

50,000,000.00

6/20/2014

6/20/2014

0.21%

50,000,000.00

Barclays Bank Plc

Other Note

06740BAF4

97,500,000.00

4/7/2014

4/7/2014

0.31%

97,500,000.00

Barclays Bank Plc

Other Note

06740BAG2

97,500,000.00

4/7/2014

4/7/2014

0.21%

97,500,000.00

General Electric Capital Corp

Other Note

36962G5B6

28,125,000.00

4/7/2014

4/7/2014

0.92%

28,128,087.72

General Electric Capital Corp

Other Note

36962G6T6

7,695,000.00

4/9/2014

1/9/2015

0.62%

7,718,733.27

General Electric Capital Corp

Other Note

36962G5X8

17,800,000.00

4/24/2014

4/24/2014

0.94%

17,807,999.05

General Electric Capital Corp

Other Note

36962G5E0

3,760,000.00

6/2/2014

6/2/2014

0.87%

3,763,884.05

General Electric Capital Corp

Other Note

B1W8JG7

18,420,000.00

6/20/2014

6/20/2014

0.36%

18,421,957.62

ING Bank NV

Other Note

449786AN2

51,550,000.00

6/9/2014

6/9/2014

1.64%

51,683,736.64

MetLife Global Funding I

Other Note

59217FCA7

38,000,000.00

4/10/2014

9/5/2014

0.47%

38,000,000.00

MetLife Institutional Funding II

Other Note

59157BAF9

71,123,000.00

4/4/2014

4/4/2014

1.14%

71,128,400.16

MetLife Institutional Funding II

Other Note

59157BAM4

22,185,000.00

4/7/2014

1/6/2015

0.61%

22,244,899.92

Nederlandse Waterschapsbank NV

Other Note

B5L1Z78

30,000,000.00

5/27/2014

5/27/2014

0.63%

30,017,573.40

New York Life Global Funding

Other Note

64952WBB8

15,565,000.00

4/4/2014

4/4/2014

0.50%

15,565,380.19

Svenska Handelsbanken AB

Other Note

86959JCN6

54,250,000.00

4/4/2014

4/2/2015

0.37%

54,245,745.13

Svenska Handelsbanken AB

Other Note

86959JDE5

35,000,000.00

4/15/2014

9/15/2014

0.26%

35,000,000.00

Toyota Motor Credit Corp

Other Note

89236TAP0

24,000,000.00

4/14/2014

7/14/2014

0.24%

24,000,000.00

Westpac Banking Corp/NY

Other Note

91621CCH

53,250,000.00

6/2/2014

4/1/2015

0.41%

53,250,000.00

BNP Paribas Securities Corp

Other Repurchase Agreement

CR69999A4

80,000,000.00

4/1/2014

5/5/2014

0.19%

80,000,000.00

HSBC Securities (USA) Inc.

Other Repurchase Agreement

CR3114673

23,000,000.00

4/1/2014

4/1/2014

0.14%

23,000,000.00

ING Financial Markets LLC

Other Repurchase Agreement

CR2956710

75,000,000.00

4/1/2014

4/1/2014

0.14%

75,000,000.00

JP Morgan Securities LLC

Other Repurchase Agreement

CR49929P8

100,000,000.00

4/1/2014

5/5/2014

0.28%

100,000,000.00

SG Americas Securities LLC

Other Repurchase Agreement

CR3155460

85,000,000.00

4/1/2014

4/1/2014

0.19%

85,000,000.00

Illinois Educational Facilities Authority, National-Louis University, Series 1999B

Variable Rate Demand Note

452001Q78

9,950,000.00

4/7/2014

4/7/2014

0.07%

9,950,000.00

Maryland Health & Higher Educational Facilities Authority, University of Maryland Medical System, Series 2007A

Variable Rate Demand Note

574217G74

13,375,000.00

4/7/2014

4/7/2014

0.06%

13,375,000.00

March 31, 2014 Page 4 of 7

Issuer Name (continued)

Category

CUSIP

Principal Amount Maturity Date

Final Legal Coupon/Yield Maturity Date

Amortized Cost

Minnesota Housing Finance Agency, Series 2007E

Variable Rate Demand Note

60415NJ78

3,325,000.00

4/7/2014

4/7/2014

0.15%

3,325,000.00

Mobile Solid Waste Authority Waste Management, Series 2003

Variable Rate Demand Note

607208AA3

4,175,000.00

4/7/2014

4/7/2014

0.07%

4,175,000.00

Northstar Student Loan Trust II, Series 2012A

Variable Rate Demand Note

66705GAA1

20,700,000.00

4/7/2014

4/7/2014

0.10%

20,700,000.00

Pima County Industrial Development Authority

Variable Rate Demand Note

721661AC0

11,155,000.00

4/7/2014

4/7/2014

0.20%

11,155,000.00

Warren County, WKU Student Life Foundation, Series 2008

Variable Rate Demand Note

934899AC9

12,000,000.00

4/7/2014

4/7/2014

0.07%

12,000,000.00

PORTFOLIO MATURITY1,2 Overnight

32.9%

2-7 days

27.4%

8-29 days

28.3%

30-60 days

6.4%

61-120 days

5.0%

121+ days

0.0%

PORTFOLIO ALLOCATION2 Asset Backed Commercial Paper

10.3%

Certificates of Deposit

40.5%

Financial Company Commercial Paper

8.0%

Government Agency Debt

1.6%

Government Agency Repurchase Agreements

9.4%

Investment Companies

3.7%

Other Notes

16.9%

Other Repurchase Agreements

8.0%

Variable Rate Demand Notes

1.6%

March 31, 2014 Page 5 of 7

BANK EXPOSURE BY COUNTRY OF DOMICILE2,3 Australia

8.2%

Canada

16.9%

Chile

2.2%

France

2.3%

Germany

2.9%

Japan

2.6%

Netherlands

7.6%

Sweden

8.1%

Switzerland

2.2%

United Kingdom

5.5%

United States

10.2%

1

Calculated using maturity date as defined below

2

Shown as a percentage of amortized cost

3

Some securities held by the fund may not have bank exposure, therefore the chart provided may not include the fund's entire investment portfolio

Terms:

Weighted Average Maturity (WAM): The average time to maturity of all the securities held in the fund, weighted by each security’s percentage of total investments. WAM measures a fund’s sensitivity to interest rate changes. Weighted Average Life (WAL): The average time to final legal maturity of all the securities held in the fund, weighted by each security’s percentage of total investments. WAL measures a fund’s sensitivity to potential credit spread changes. Maturity Date: The earlier of the date the principal amount must unconditionally be paid, the next interest rate reset date, or in the case of a security called for redemption, the date on which the redemption payment must be made. Final Legal Maturity Date: The date the principal amount must unconditionally be paid, or in the case of a security called for redemption, the date on which the redemption payment must be made. Coupon/Yield: Represents either the annualized yield at the date of purchase, the stated coupon rate, or, for floating rate securities, the rate at period-end. Amortized Cost: Pursuant to Rule 2a-7, portfolio securities are valued at the fund’s acquisition cost adjusted for amortization of premium or accretion of discount rather than at their current market value. Bank Exposure: The combination of either direct exposure when an investment is issued by a bank, or indirect exposure where a bank provides full liquidity and/or other credit support to a security.

March 31, 2014 Page 6 of 7

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., a registered investment advisor and subsidiary of U.S. Bank National Association, manages the portfolio. U.S. Bank is not responsible for and does not guarantee the products, service or performance of its affiliates and third party providers.

NOT FDIC INSURED – NO BANK GUARANTEE – MAY LOSE VALUE

March 31, 2014 Page 7 of 7