UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

Under the Securities Exchange Act of 1934

(Amendment No. 1)*

Vocus, Inc.

(Name of Issuer)

Common Stock, par value $0.01 per share

(Title of Class of Securities)

92858J108

(CUSIP Number)

February 28, 2014

(Date of Event which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

[ X] Rule 13d-1(b)

[ ] Rule 13d-1(c)

[ ] Rule 13d-1(d)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Continued on following pages

Page 1 of 12 Pages

Exhibit Index: Page 11

SCHEDULE 13G

CUSIP No.: 92858J108

Page 2 of 12 Pages

1.	Names of Reporting Persons. Altai Capital Management, L.P.
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person With:		5.	Sole Voting Power	0
		6.	Shared Voting Power	2,460,000
		7.	Sole Dispositive Power	0
		8.	Shared Dispositive Power	2,460,000
9.	Aggregate Amount Beneficially Owned by Each Reporting Person 2,460,000
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ]
11.	Percent of Class Represented by Amount in Row (9) 11.6%
12.	Type of Reporting Person (See Instructions) IA, PN

SCHEDULE 13G

CUSIP No.: 92858J108

Page 3 of 12 Pages

1.	Names of Reporting Persons. Altai Capital Management, LLC
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Citizenship or Place of Organization Delaware
Number of Shares Beneficially Owned by Each Reporting Person With:		5.	Sole Voting Power	0
		6.	Shared Voting Power	2,460,000
		7.	Sole Dispositive Power	0
		8.	Shared Dispositive Power	2,460,000
9.	Aggregate Amount Beneficially Owned by Each Reporting Person 2,460,000
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ]
11.	Percent of Class Represented by Amount in Row (9) 11.6%
12.	Type of Reporting Person (See Instructions) HC, OO

SCHEDULE 13G

CUSIP No.: 92858J108

Page 4 of 12 Pages

1.	Names of Reporting Persons. Rishi Bajaj
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With:		5.	Sole Voting Power	0
		6.	Shared Voting Power	2,460,000
		7.	Sole Dispositive Power	0
		8.	Shared Dispositive Power	2,460,000
9.	Aggregate Amount Beneficially Owned by Each Reporting Person 2,460,000
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ]
11.	Percent of Class Represented by Amount in Row (9) 11.6%
12.	Type of Reporting Person (See Instructions) HC, IN

SCHEDULE 13G

CUSIP No.: 92858J108

Page 5 of 12 Pages

1.	Names of Reporting Persons. Toby E. Symonds
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With:		5.	Sole Voting Power	0
		6.	Shared Voting Power	2,460,000
		7.	Sole Dispositive Power	0
		8.	Shared Dispositive Power	2,460,000
9.	Aggregate Amount Beneficially Owned by Each Reporting Person 2,460,000
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ]
11.	Percent of Class Represented by Amount in Row (9) 11.6%
12.	Type of Reporting Person (See Instructions) HC, IN

SCHEDULE 13G

CUSIP No.: 92858J108

Page 6 of 12 Pages

1.	Names of Reporting Persons. Steven V. Tesoriere
2.	Check the Appropriate Box if a Member of a Group (See Instructions) (a) [ ] (b) [ ]
3.	SEC Use Only
4.	Citizenship or Place of Organization United States of America
Number of Shares Beneficially Owned by Each Reporting Person With:		5.	Sole Voting Power	0
		6.	Shared Voting Power	2,460,000
		7.	Sole Dispositive Power	0
		8.	Shared Dispositive Power	2,460,000
9.	Aggregate Amount Beneficially Owned by Each Reporting Person 2,460,000
10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) [ ]
11.	Percent of Class Represented by Amount in Row (9) 11.6%
12.	Type of Reporting Person (See Instructions) HC, IN

Page 7 of 12 Pages

Item 1(a).

Name of Issuer:

Vocus, Inc. (the “Issuer”)

Item 1(b).

Address of Issuer’s Principal Executive Offices:

12051 Indian Creek Court, Beltsville, Maryland 20705

Item 2(a).

Name of Person Filing

This Statement is filed on behalf of each of the following persons (collectively, the Reporting Persons”):

(i)

Altai Capital Management, L.P., a Delaware limited partnership registered as an investment adviser with the U.S. Securities and Exchange Commission (the “Investment Manager”), which serves as the investment manager of certain investment funds (the “Funds”) with respect to the Shares (as defined in Item 2(d) below) held in such Funds’ respective accounts;

(ii)

Altai Capital Management, LLC, a Delaware limited liability company (“IMGP”), which serves as the general partner of Investment Manager with respect to the Shares held in such Funds’ respective accounts;

(iii)

Mr. Rishi Bajaj, who serves as chief investment officer and managing principal of Investment Manager and member of IMGP with respect to the Shares held in the Funds’ respective accounts;

(iv)

Mr. Toby E. Symonds, who serves as president and managing principal of Investment Manager and member of IMGP with respect to the Shares held in the Funds’ respective accounts; and

(v)

Mr. Steven V. Tesoriere, who serves as a managing principal of Investment Manager and a member of IMGP with respect to the Shares held in the Funds’ respective accounts.

This Statement relates to Shares (as defined herein) held for the account of Altai Capital Master Fund, Ltd., (“ACMF”) a Cayman Islands exempted company. Investment Manager serves as investment manager to ACMF. Investment Manager, IMGP, Mr. Bajaj, Mr. Symonds and Mr. Tesoriere are hereinafter sometimes collectively referred to as the Reporting Persons. Each of Investment Manager, IMGP, Mr. Bajaj, Mr. Symonds and Mr. Tesoriere may be deemed to have voting and dispositive power over the Shares held for the account of ACMF.

Item 2(b).

Address of Principal Business Office or, if None, Residence:

152 West 57th Street, 10th Floor

New York, NY 10019

United States

Item 2(c).

Citizenship:

(i)

Investment Manager is a Delaware limited partnership;

(ii)

IMGP is a Delaware limited liability company;

Page 8 of 12 Pages

(iii) Mr. Bajaj is a citizen of the United States of America;

(iv) Mr. Symonds is a citizen of the United States of America; and

(v) Mr. Tesoriere is a citizen of the United States of America.

Item 2(d).

Title of Class of Securities:

Common Stock, par value $0.01 per share (the “Shares”)

Item 2(e).

CUSIP Number:

92858J108

Item 3.

If This Statement is Filed Pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), Check Whether the Person Filing is a:

(e) [X] An investment adviser in accordance with § 240.13d-(b)(1)(ii)(E);

(g) [X] A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G).

Item 4.

Ownership:

Item 4(a)

Amount Beneficially Owned:

As of February 28, 2014, each of the Reporting Persons may be deemed the beneficial owner of 2,460,000 Shares held for the account of ACMF.

Item 4(b)

Percent of Class:

As of February 28, 2014, each of the Reporting Persons may be deemed the beneficial owner of approximately 11.6% of Shares outstanding. (There were 21,132,660 Shares outstanding as of October 25, 2013, according to the Issuer’s quarterly report on Form 10-Q filed on November 4, 2013).

Item 4(c)

Number of Shares as to which such person has:

Investment Manager, IMGP, Mr. Bajaj, Mr. Symonds and Mr. Tesoriere:
(i) Sole power to vote or direct the vote:	0
(ii) Shared power to vote or direct the vote:	2,460,000
(iii) Sole power to dispose or direct the disposition of:	0
(iv) Shared power to dispose or direct the disposition of:	2,460,000

Item 5.

Ownership of Five Percent or Less of a Class:

This Item 5 is not applicable.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person:

See disclosure in Items 2 and 4 hereof. ACMF has the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, more than 5% of the Shares covered by this Statement that may be deemed to be beneficially owned by the Reporting Persons.

Page 9 of 12 Pages

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person:

See disclosure in Item 2 hereof.

Item 8.

Identification and Classification of Members of the Group:

This Item 8 is not applicable.

Item 9.

Notice of Dissolution of Group:

This Item 9 is not applicable.

Item 10.

Certification:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Page 10 of 12 Pages

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: March 10, 2014	ALTAI CAPITAL MANAGEMENT, L.P.

	By:	/s/ Toby E. Symonds
		Name: Toby E. Symonds
		Title: Authorized Signatory

	ALTAI CAPITAL MANAGEMENT, LLC

	By:	/s/ Toby E. Symonds
		Name: Toby E. Symonds
		Title: Authorized Signatory

		/s/ Rishi Bajaj
		Name: Rishi Bajaj

		/s/ Toby E. Symonds
		Name: Toby E. Symonds

		/s/ Steven V. Tesoriere
		Name: Steven V. Tesoriere

Page 11 of 12 Pages

INDEX TO EXHIBITS

Exhibit No.	Description	Page No.

A	Joint Filing Agreement	12

Page 12 of 12 Pages

EXHIBIT A

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, the persons named below agree to the joint filing on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Common Stock of Vocus, Inc., and further agree that this Joint Filing Agreement be included as an Exhibit to such joint filing. In evidence thereof, the undersigned hereby execute this Agreement.

Date: March 10, 2014	ALTAI CAPITAL MANAGEMENT, L.P.

	By:	/s/ Toby E. Symonds
		Name: Toby E. Symonds
		Title: Authorized Signatory

	ALTAI CAPITAL MANAGEMENT, LLC

	By:	/s/ Toby E. Symonds
		Name: Toby E. Symonds
		Title: Authorized Signatory

		/s/ Rishi Bajaj
		Name: Rishi Bajaj

		/s/ Toby E. Symonds
		Name: Toby E. Symonds

		/s/ Steven V. Tesoriere
		Name: Steven V. Tesoriere

Vocus, Inc. SC 13G/A