EDGAR Filing Documents for 0001181431-12-013581

Form 4 - Statement of changes in beneficial ownership of securities:

SEC Accession No. 0001181431-12-013581

Filing Date

2012-03-01

Accepted

2012-03-01 18:06:30

Documents

Period of Report

2012-02-29

Document Format Files

Seq	Description	Document	Type	Size
1	FORM 4	rrd336821.html	4
1	FORM 4	rrd336821.xml	4	3338
	Complete submission text file	0001181431-12-013581.txt		5249

Mailing Address 1585 BROADWAY NEW YORK NY 10036

Business Address 1585 BROADWAY NEW YORK NY 10036 212-761-4000

MORGAN STANLEY (Reporting) CIK: 0000895421 (see all company filings)

State of Incorp.: DE | Fiscal Year End: 1231
Type: 4 | Act: 34 | File No.: 811-10333 | Film No.: 12659384
SIC: 6211 Security Brokers, Dealers & Flotation Companies

Mailing Address 100 BELLEVUE PARKWAY MUTUAL FUND DEPARTMENT WILMINGTON DE 19809

Business Address 100 BELLEVUE PARKWAY MUTUAL FUND DEPARTMENT WILMINGTON DE 19809 888-825-2257

BLACKROCK MUNICIPAL INCOME INVESTMENT TRUST (Issuer) CIK: 0001137392 (see all company filings)

IRS No.: 510409116 | State of Incorp.: DE | Fiscal Year End: 1031