13D Filing: Clearlake Capital Partners IV Finance, L.P. and Tangoe Inc (TNGO)

There may be some debate as to whether activist shareholders are good for the long-term health of companies, but there is no debating their results. In 2012, 2013, and 2014, activist investment strategies returned 9.3%, 19.2%, and 8.5% respectively per year. While new activist positions may not be moving the needle quite as much as they once were, the market still values activist involvement in companies. In this article, we reveal one of the latest activist filings, issued by Clearlake Capital Partners IV Finance, disclosing the latest information regarding the activist’s position in Tangoe Inc (NASDAQ:TNGO). The filing is embedded in its entirety below and on the following pages.

You can access the original SEC filing by clicking here.

Ownership Summary Table

Name Sole Voting Power Shared Voting Power Sole Dispositive Power Shared Dispositive Power Aggregate Amount Owned Power Percent of Class
Clearlake Capital Partners IV Finance, L.P. 0 5,109,900 0 5,109,900 5,109,900 12.96%
Clearlake Capital Partners IV GP, L.P. 0 5,109,900 0 5,109,900 5,109,900 12.96%
Clearlake Capital Partners, LLC 0 5,109,900 0 5,109,900 5,109,900 12.96%
CCG Operations, LLC 0 5,109,900 0 5,109,900 5,109,900 12.96%
Behdad Eghbali 0 5,109,900 0 5,109,900 5,109,900 12.96%
Jos E. Feliciano 0 5,109,900 0 5,109,900 5,109,900 12.96%

Page 1 of 10 SEC Filing

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13D

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO § 240.13D-1(A) AND AMENDMENTS THERETO FILED

PURSUANT TO § 240.13D-2(A)

(Amendment No. 3)

Tangoe, Inc.

(Name of Issuer)

Common Stock, $0.0001 par value

(Title of Class of Securities)

87582Y108

(CUSIP Number)

Behdad Eghbali

Clearlake Capital Partners IV Finance, L.P.

c/o Clearlake Capital Group, L.P.

233 Wilshire Blvd, Suite 800

Santa Monica, California 90401

(310) 400-8800

copies to:

Mehdi Khodadad

Cooley
LLP

3175 Hanover Street

Palo Alto, California 94304

(650) 843-5000

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

January 19, 2016

(Date
of Event which Requires Filing of this Statement)

If the filing
person has previously filed a statement on Schedule 13G to report the acquisition which is the subject of this Schedule 13D, and is filing this schedule because of Sections 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following
box.  ¨

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See Section 240.13d-7 for
other parties to whom copies are to be sent.

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 disclosures provided in a prior cover page.

The information required on 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).

Follow Tangoe Inc (NASDAQ:TNGO)

Page 2 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
2
of 10 Pages
  1. 

Name of
reporting person

Clearlake Capital Partners IV Finance, L.P.

  2.

Check the appropriate box if a member
of a group (see instructions)

(a)  x        (b)  ¨

  3.

SEC use only

  4.

Source of funds (see instructions)

AF

  5.

Check if disclosure of legal
proceedings is required pursuant to Items 2(d) or 2(e)  ¨

  6.

Citizenship or place of
organization

Delaware

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

  7. 

Sole voting power

0

  8.

Shared voting power

5,109,900

  9.

Sole dispositive power

0

10.

Shared dispositive power

5,109,900

11.

Aggregate amount beneficially owned by each reporting person

5,109,900

12.

Check if the aggregate amount in Row
(11) excludes certain shares (see instructions)  ¨

13.

Percent of class represented by amount
in Row (11)

12.96%

14.

Type of reporting person (see
instructions)

PN

Follow Tangoe Inc (NASDAQ:TNGO)

Page 3 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
3
of 10 Pages
  1. 

Name of
reporting person

Clearlake Capital Partners IV GP, L.P.

  2.

Check the appropriate box if a member
of a group (see instructions)

(a)  x        (b)  ¨

  3.

SEC use only

  4.

Source of funds (see instructions)

AF

  5.

Check if disclosure of legal
proceedings is required pursuant to Items 2(d) or 2(e)  ¨

  6.

Citizenship or place of
organization

Delaware

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

  7. 

Sole voting power

0

  8.

Shared voting power

5,109,900

  9.

Sole dispositive power

0

10.

Shared dispositive power

5,109,900

11.

Aggregate amount beneficially owned by each reporting person

5,109,900

12.

Check if the aggregate amount in Row
(11) excludes certain shares (see instructions)  ¨

13.

Percent of class represented by amount
in Row (11)

12.96%

14.

Type of reporting person (see
instructions)

PN

Follow Tangoe Inc (NASDAQ:TNGO)

Page 4 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
4
of 10 Pages
  1. 

Name of
reporting person

Clearlake Capital Partners, LLC

  2.

Check the appropriate box if a member
of a group (see instructions)

(a)  x        (b)  ¨

  3.

SEC use only

  4.

Source of funds (see instructions)

AF

  5.

Check if disclosure of legal
proceedings is required pursuant to Items 2(d) or 2(e)  ¨

  6.

Citizenship or place of
organization

Delaware

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

  7. 

Sole voting power

0

  8.

Shared voting power

5,109,900

  9.

Sole dispositive power

0

10.

Shared dispositive power

5,109,900

11.

Aggregate amount beneficially owned by each reporting person

5,109,900

12.

Check if the aggregate amount in Row
(11) excludes certain shares (see instructions)  ¨

13.

Percent of class represented by amount
in Row (11)

12.96%

14.

Type of reporting person (see
instructions)

OO

Follow Tangoe Inc (NASDAQ:TNGO)

Page 5 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
5
of 10 Pages
  1. 

Name of
reporting person

CCG Operations, LLC

  2.

Check the appropriate box if a member
of a group (see instructions)

(a)  x        (b)  ¨

  3.

SEC use only

  4.

Source of funds (see instructions)

AF

  5.

Check if disclosure of legal
proceedings is required pursuant to Items 2(d) or 2(e)  ¨

  6.

Citizenship or place of
organization

Delaware

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

  7. 

Sole voting power

0

  8.

Shared voting power

5,109,900

  9.

Sole dispositive power

0

10.

Shared dispositive power

5,109,900

11.

Aggregate amount beneficially owned by each reporting person

5,109,900

12.

Check if the aggregate amount in Row
(11) excludes certain shares (see instructions)  ¨

13.

Percent of class represented by amount
in Row (11)

12.96%

14.

Type of reporting person (see
instructions)

OO

Follow Tangoe Inc (NASDAQ:TNGO)

Page 6 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
6
of 10 Pages
  1. 

Name of
reporting person

Behdad Eghbali

  2.

Check the appropriate box if a member
of a group (see instructions)

(a)  x        (b)  ¨

  3.

SEC use only

  4.

Source of funds (see instructions)

AF

  5.

Check if disclosure of legal
proceedings is required pursuant to Items 2(d) or 2(e)  ¨

  6.

Citizenship or place of
organization

United States

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

  7. 

Sole voting power

0

  8.

Shared voting power

5,109,900

  9.

Sole dispositive power

0

10.

Shared dispositive power

5,109,900

11.

Aggregate amount beneficially owned by each reporting person

5,109,900

12.

Check if the aggregate amount in Row
(11) excludes certain shares (see instructions)  ¨

13.

Percent of class represented by amount
in Row (11)

12.96%

14.

Type of reporting person (see
instructions)

IN

Follow Tangoe Inc (NASDAQ:TNGO)

Page 7 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
7
of 10 Pages
  1. 

Name of
reporting person

José E. Feliciano

  2.

Check the appropriate box if a member
of a group (see instructions)

(a)  x        (b)  ¨

  3.

SEC use only

  4.

Source of funds (see instructions)

AF

  5.

Check if disclosure of legal
proceedings is required pursuant to Items 2(d) or 2(e)  ¨

  6.

Citizenship or place of
organization

United States

Number of

Shares

Beneficially

Owned by

Each

Reporting

Person

  7. 

Sole voting power

0

  8.

Shared voting power

5,109,900

  9.

Sole dispositive power

0

10.

Shared dispositive power

5,109,900

11.

Aggregate amount beneficially owned by each reporting person

5,109,900

12.

Check if the aggregate amount in Row
(11) excludes certain shares (see instructions)  ¨

13.

Percent of class represented by amount
in Row (11)

12.96%

14.

Type of reporting person (see
instructions)

IN

Follow Tangoe Inc (NASDAQ:TNGO)

Page 8 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
8
of 10 Pages

This Amendment No. 3 to Schedule 13D is being filed by Clearlake Capital Partners IV
Finance, L.P., Clearlake Capital Partners IV GP, L.P., Clearlake Capital Partners, LLC, CCG Operations, LLC, Behdad Eghbali and José E. Feliciano (collectively, the “Reporting Persons”), pursuant to §240.13d-2(a), to amend the
Schedule 13D filed by the Reporting Persons on November 30, 2015 (the “Initial Schedule 13D”), as amended by Amendment No. 1 thereto filed by the Reporting Persons on December 15, 2015, and by Amendment No. 2 thereto
filed by the Reporting Persons on January 11, 2016, relating to the Common Stock, $0.0001 par value per share, of Tangoe, Inc. Except as set forth below, all Items of the Initial Schedule 13D remain unchanged. All capitalized terms not
otherwise defined herein shall have the meanings ascribed to such terms in the Initial Schedule 13D.

Item 3. Source and Amount of Funds or Other Consideration

Item 3 of the Initial Schedule
13D is amended in its entirety to read as follows:

In a series of transactions completed on January 19, 2016, the Reporting Persons
acquired 5,109,900 shares of common stock of the Issuer (the “Shares”) for approximately $39,280,781 in investment capital. The source of funds for this consideration was the available capital of Clearlake Capital Partners IV Finance,
L.P., which may, at any given time, include margin loans made by brokerage firms, or capital contributions from investors in Clearlake Capital Partners IV Finance, L.P., each in the ordinary course of business.

Item 5. Interest in Securities of the Issuer

Item 5 of the Initial Schedule 13D is amended
in its entirety to read as follows:

The information contained on the cover pages to this Schedule 13D and the information set forth or
incorporated in Items 2, 3, 4 and 6 are incorporated herein by reference.

(a) As of the date hereof, the Reporting Persons have the following interest in the securities of the Company:
i. Clearlake Capital Partners IV Finance, L.P. beneficially owns 5,109,900 Shares, making it the beneficial owner of 12.96% of the Issuer’s common stock. Clearlake Capital Partners IV Finance, L.P. has shared voting
and investment power with respect to these Shares, and does not have sole voting or investment power with respect to any of these Shares.
ii. Clearlake Capital Partners IV GP, L.P. beneficially owns 5,109,900 Shares, making it the beneficial owner of 12.96% of the Issuer’s common stock. Clearlake Capital Partners IV GP, L.P. has shared voting and
investment power with respect to these Shares, and does not have sole voting or investment power with respect to any of these Shares.
iii. Clearlake Capital Partners, LLC beneficially owns 5,109,900 Shares, making it the beneficial owner of 12.96% of the Issuer’s common stock. Clearlake Capital Partners, LLC has shared voting and investment power with
respect to these Shares, and does not have sole voting or investment power with respect to any of these Shares.
iv. CCG Operations, LLC beneficially owns 5,109,900 Shares, making it the beneficial owner of 12.96% of the Issuer’s common stock. CCG Operations, LLC has shared voting and investment power with respect to these
Shares, and does not have sole voting or investment power with respect to any of these Shares.
v. Behdad Eghbali beneficially owns 5,109,900 Shares, making him the beneficial owner of 12.96% of the Issuer’s common stock. Mr Eghbali has shared voting and investment power with respect to these Shares, and does
not have sole voting or investment power with respect to any of these Shares.
vi. José E. Feliciano beneficially owns 5,109,900 Shares, making him the beneficial owner of 12.96% of the Issuer’s common stock. Mr. Feliciano has shared voting and investment power with respect to these
Shares, and does not have sole voting or investment power with respect to any of these Shares.

Follow Tangoe Inc (NASDAQ:TNGO)

Page 9 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
9
of 10 Pages
(b) The information set forth in (a) above is incorporated by reference here.
(c) There have been no purchases or sales of the Issuer’s common stock by any of the Reporting Persons within the last sixty days, except for the purchases of the Issuer’s common stock by Clearlake Capital
Partners IV Finance, L.P. on the open market as indicated in the table below, which table sets forth the date upon which such shares were purchased, number of Shares purchased on each such date, and the weighted average purchase price per share for
the Shares purchased on each such date.

Date

Number of Shares
Purchased
Weighted AveragePurchase
Price Per Share

11/6/2015

1,830,000 $ 6.9996

11/17/2015

70,000 $ 6.7989

11/18/2015

275,890 $ 7.0693

11/19/2015

262,986 $ 7.4795

11/20/2015

115,618 $ 7.6202

11/23/2015

140,358 $ 7.9330

11/24/2015

100,000 $ 8.0753

11/25/2015

373,100 $ 8.3112

11/27/2015

60,000 $ 8.5153

11/30/2015

105,216 $ 8.5372

12/1/2015

21,339 $ 8.5617

12/2/2015

39,461 $ 8.4506

12/3/2015

58,381 $ 8.3060

12/4/2015

19,744 $ 8.2977

12/7/2015

26,625 $ 8.2582

12/8/2015

3,657 $ 8.2775

12/10/2015

194,123 $ 8.4284

12/11/2015

25,000 $ 8.2900

12/14/2015

161,746 $ 8.4586

12/15/2015

42,471 $ 8.4976

12/17/2015

21,900 $ 8.4977

12/18/2015

28,430 $ 8.4995

01/06/2016

39,993 $ 8.1239

01/07/2016

146,354 $ 8.1926

01/08/2016

479,451 $ 8.3297

01/14/2016

300,000 $ 8.2323

01/15/2016

31,373 $ 7.9992

01/19/2016

136,684 $ 8.1403

Follow Tangoe Inc (NASDAQ:TNGO)

Page 10 of 10 SEC Filing


CUSIP NO. 87582Y108 13D Page
10
of 10 Pages

SIGNATURES

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.

Dated: January 19, 2016

Clearlake Capital Partners IV Finance, L.P.
By: Clearlake Capital Partners IV GP, L.P., its general partner
By: Clearlake Capital Partners, LLC, its general partner
By:

/s/ Behdad Eghbali

Name: Behdad Eghbali
Title: Co-President
Clearlake Capital Partners IV GP, L.P.
By: Clearlake Capital Partners, LLC, its general partner
By:

/s/ Behdad Eghbali

Name: Behdad Eghbali
Title: Co-President
Clearlake Capital Partners, LLC
By:

/s/ Behdad Eghbali

Name: Behdad Eghbali
Title: Co-President
CCG Operations, LLC
By:

/s/ Behdad Eghbali

Name: Behdad Eghbali
Title: Manager

/s/ Behdad Eghbali

Behdad Eghbali

/s/ José E. Feliciano

José E. Feliciano

Follow Tangoe Inc (NASDAQ:TNGO)