SC 13G/A




Securities and Exchange Commission

Washington, D.C. 20549




Under the Securities Exchange Act of 1934

(Amendment No. 1)*




(Name of Issuer)


(Title of Class of Securities)


(CUSIP Number)

Dec 31, 2017

(Date of Event Which Requires Filing of this Statement)



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

☒ 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 in 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, as amended (the “Act”), or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act.





CUSIP No. 46269C409

ITEM 1(a).     Name of Issuer.


ITEM 1(b).     Address of Issuer’s Principal Executive Offices.

    Iridium Communications Inc.

    1750 Tysons Boulevard

    Suite 1400

    Mclean, VA 22102

ITEM 2(a).     Names of Persons Filing.

    Bank Of Montreal

ITEM 2(b).     Address of Principal Business Office or, if none, Residence.

Bank Of Montreal

1 First Canadian Place

Toronto, Ontario, Canada M5X 1A1

ITEM 2(c).     Citizenship or Place of Organization.

Bank Of Montreal is organized under the laws of Canada.

ITEM 2(d). Title of Class of Securities.


ITEM 2(e). CUSIP Number.



ITEM 3. If this statement is filed pursuant to Sections 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:


(a)      Broker or dealer registered under Section 15 of the Act (15 U.S.C. 78o);
(b)      Bank as defined in Section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)      Insurance company as defined in Section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)      Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)      An investment adviser in accordance with Section 240.13d-1(b)(1)(ii)(E);
(f)      An employee benefit plan or endowment fund in accordance with Section 240.13d-1(b)(1)(ii)(F);
(g)      A parent holding company or control person in accordance with Section 240.13d-1(b)(1)(ii)(G);
(h)      A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)      A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)      A non-U.S. institution in accordance with Section 240.13d-1(b)(1)(ii)(J);
(k)      Group, in accordance with Section 240.13d-1(b)(1)(ii)(K).

ITEM 4.     Ownership.

The information contained in Items 5 – 11 on the cover pages is incorporated herein by reference.


ITEM 5.     Ownership of Five Percent or Less of a Class.

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following  ☒.


ITEM 6.     Ownership of More than Five Percent on Behalf of Another Person.

Not Applicable


ITEM 7.     Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person

Not Applicable

ITEM 8.     Identification and Classification of Members of the Group.

Not Applicable


ITEM 9.     Notice of Dissolution of Group.

Not Applicable


ITEM 10.     Certifications.

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.


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 as of the 14th day of February, 2018.


/s/ Barbara Muir
Barbara Muir
SVP, Deputy General Counsel Corporate Affairs & Corporate Secretary