24F-2NT

U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 24F-2
ANNUAL NOTICE OF SECURITES SOLD PURSUANT TO RULE 24F-2
READ INSTRUCTIONS AT END OF FORM BEFORE PREPARING FORM.
1.	Name and address of issuer:
Prudential Institutional Money Market Fund, Inc.
(formerly Prudential Institutional Liquidity Portfolio, Inc.)
100 Mulberry Street, Gateway Center Three, 9th Floor
Newark, New Jersey 07102-4077

2.	The name of each series or class of securities for which this Form is filed
(If the Form is being filed for all series and classes of securities of the
issuer, check the box but do not list series or classes):[x]
3.	Investment Company Act File Number:  811-05336
Securities Act File Number:  033-17224
4.	(a)	Last day of fiscal year for which this Form is filed:  March 31, 2010
(b)	[ ] Check box if this Form is being filed late (i.e., more than 90
       calendar days after the end of the issuer's fiscal year).
       (See Instruction A.2)

NOTE: IF THE FORM IS BEING FILED LATE, INTEREST MUST BE PAID
ON THE REGISTRATION FEE DUE.
(c)	[x] Check box if this is the last time the issuer will be filing this Form.
5.	Calculation of registration fee:
(i)	Aggregate sale price of securities
sold during the fiscal year pursuant
to section 24(f):
$1,718,219,212
(ii)	Aggregate price of securities
redeemed or repurchased during
the fiscal year:
$2,703,985,626
(iii)	Aggregate price of securities
redeemed or repurchased during
any PRIOR fiscal year ending no
earlier than October 11, 1995 that
were not previously used to reduce
registration fees payable to the
Commission:
$3,151,905,436
(iv)	Total available redemption credits
[add items 5(ii) and 5(iii)]:
$5,855,891,062
(v)	Net sales -- if item 5(i) is greater
than Item 5(iv) [subtract Item 5(iv)
from Item 5(I)]:
$0
(vi)	Redemption credits available for
use in future years -- if Item 5(i) is
less than Item 5(iv) [subtract Item
5(iv) from Item 5(i)]:
$4,137,671,850
(vii)	Multiplier for determining
registration fee (See Instruction
C.9):
x  0.0000713
(viii)	Registration fee due [multiply Item
5(v) by Item 5(vii)] (enter "0" if
no fee is due):
= $0

6.	Prepaid Shares
If the response to Item 5(i) was determined by deducting an amount of
securities that were registered under the Securities Act of 1933 pursuant to
rule 24e-2 as in effect before October 11, 1997, then report the amount of
securities (number of shares or other units) deducted here: 0. If there is a
number of shares or other units that were registered pursuant to rule 24e-2
remaining unsold at the end of the fiscal year for which this form is filed
that are available for use by the issuer in future fiscal years, then state
that number here: 0.
7.	Interest due -- if this Form is being filed more than 90 days after the
       end of the issuer's fiscal year (see Instruction D): $0
8.	Total of the amount of the registration fee due plus any interest due
       [Item 5(viii) plus Item 7]: = $0
9.	Date the registration fee and any interest payment was sent to the
       Commission's lockbox depository: N/A
Method of Delivery: N/A
[   ] Wire Transfer
[   ] Mail or other means


SIGNATURES

       This report has been signed below by the following persons
on behalf of the
       Issuer and in the capacities and on the dates indicated.

By: (Signature and Title)
/s/ Grace C. Torres
Grace C. Torres

Treasurer & Principal Financial Accounting Officer

Date: June 21, 2010
3
NYB 1476879.1

NYB 1476879.1

EX-99.77Q1 OTHR EXHB

Prudential Institutional Money Market Fund, Inc.
(formerly Prudential Institutional Liquidity Portfolio,
Inc.)
Gateway Center Three
100 Mulberry Street, 9th Floor
Newark, NJ 07102-4077



			June 21, 2010

Securities and Exchange Commission
450 Fifth Street, NW
Washington, DC 20549

Re:   Rule 24f-2 Notice for Prudential Institutional Money Market
Fund, Inc. (formerly Prudential Institutional Liquidity Portfolio,
Inc.)


		File Nos. 033-17224and 811-05336

On behalf of the Prudential Institutional Money Market Fund, Inc.
(formerly Prudential Institutional Liquidity Portfolio, Inc.)
enclosed for filing under the Investment Company Act of 1940 is
one copy of the Rule 24f-2 Notice.  This document has been filed
using the EDGAR system.  Should you have any questions, please
contact me at (973) 367-7503.

Very truly yours,

						/s/ Grace C. Torres
					            Grace C. Torres
						Treasurer