13D Filing: MHR Fund Management Further Ups Stake in Loral Space & Communications Inc. (LORL)

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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. 26)*

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

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

(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 that is the subject of this Schedule 13D, and is
filing this schedule because of §§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
§240.13d-7 for other parties to whom copies are to be sent.

Continued on following pages

(Page 1 of 29 Pages)

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).

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This statement on Schedule 13D (this Statement) amends and supplements, as
Amendment No. 26, the Schedule 13D filed on November 30, 2005 (the Original Schedule 13D), which was amended on October 19, 2006 by Amendment No. 1 to the Original Schedule 13D (Amendment No. 1), on October
30, 2006 by Amendment No. 2 to the Original Schedule 13D (Amendment No. 2), on February 28, 2007 by Amendment No. 3 to the Original Schedule 13D (Amendment No. 3), on March 23, 2007 by Amendment No. 4 to the
Original Schedule 13D (Amendment No. 4), on August 9, 2007 by Amendment No. 5 to the Original Schedule 13D (Amendment No. 5), on August 31, 2007 by Amendment No. 6 to the Original Schedule 13D
(Amendment No. 6), on November 2, 2007 by Amendment No. 7 to the Original Schedule 13D (Amendment No. 7), on July 17, 2008 by Amendment No. 8 to the Original Schedule 13D (Amendment No. 8), on
October 22, 2008 by Amendment No. 9 to the Original Schedule 13D (Amendment No. 9), on November 12, 2008 by Amendment No. 10 to the Original Schedule 13D (Amendment No. 10), on November 24, 2008 by Amendment No.
11 to the Original Schedule 13D (Amendment No. 11), on December 4, 2008 by Amendment No. 12 to the Original Schedule 13D (Amendment No. 12), on December 5, 2008 by Amendment No. 13 to the Original Schedule 13D
(Amendment No. 13), on December 8, 2008 by Amendment No. 14 to the Original Schedule 13D (Amendment No. 14), on December 24, 2008 by Amendment No. 15 to the Original Schedule 13D (Amendment No.
15), on March 20, 2009 by Amendment No. 16 to the Original Schedule 13D (Amendment No. 16), on July 2, 2009 by Amendment No. 17 to the Original Schedule 13D (Amendment No. 17), on March 17, 2011 by
Amendment No. 18 to the Original Schedule 13D (Amendment No. 18), on November 13, 2012 by Amendment No. 19 to the Original Schedule 13D (Amendment No. 19), on January 10, 2013 by Amendment No. 20 to the
Original Schedule 13D (Amendment No. 20), on January 30, 2015 by Amendment No. 21 to the Original Schedule 13D (Amendment No. 21), on March 9, 2015 by Amendment No. 22 to the Original Schedule 13D
(Amendment No. 22), on May 15, 2015 by Amendment No. 23 to the Original Schedule 13D (Amendment No. 23), on September 4, 2015 by Amendment No. 24 to the Original Schedule 13D (Amendment No.
24) and on March 7, 2016 by Amendment No. 25 to the Original Schedule 13D (Amendment No. 25 and, together with Amendment No. 1 through Amendment No. 24 and the Original Schedule 13D, the
Schedule 13D) and relates to common stock, par value $0.01 per share (the Common Stock), of Loral Space & Communications Inc. (the Issuer).

This Statement is being filed by Master Account II Holdings, Master Account II, Advisors, Institutional Partners, Institutional
Advisors, Institutional Partners IIA, Institutional Advisors II, Institutional Partners III, Institutional Advisors III, MHRC, MHRC I, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky to report, among other
things, the addition of Institutional Partners III and Institutional Advisors III as Reporting Persons. Except as otherwise provided, capitalized terms used in this Statement but not defined herein shall have the respective meanings given to
such terms in Amendment No. 25.

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Item 2. Identity and Background.

Item 2 is hereby amended by adding the following:

The term
Reporting Persons is amended to include, from and after March 8, 2016, Institutional Partners III and Institutional Advisors III.

Each
Reporting Persons principal business address is 1345 Avenue of the Americas, 42nd Floor, New York, New York, 10105.

Current information concerning
the identity and background of the officers of Advisors, Institutional Advisors, Institutional Advisors II, Institutional Advisors III, MHRC, MHRC I, MHRC II, Fund Management and MHR Holdings is set forth in Annex A hereto, which is
incorporated by reference in response to this Item 2.

Item 3. Source and Amount of Funds or Other Consideration

Item 3 is hereby amended by adding the following paragraph:

On March 8, 2016, Master Account II Holdings, Capital Partners (100) and Institutional Partners III acquired an aggregate of 190,000 shares of
Common Stock in a block trade for aggregate consideration (excluding commissions) of $6,783,000.

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Item 5. Interest in Securities of the Issuer

Item 5 is hereby amended by deleting such Item in its entirety and replacing it with the following:

The percentages set forth below are calculated based on information contained in the Form 10-K for the year ended December 31, 2015, which disclosed that
there were 21,427,078 shares of Common Stock outstanding as of February 16, 2016.

All references to percentage beneficial ownership in Item 1
and this Item 5(a) are calculated by reference only to the shares of Common Stock and without reference to the beneficial ownership of any shares of Non-Voting Common Stock, which are not a class of an equity security as defined by
Rule 13d-1(i) of the Act. Reference to the Non-Voting Common Stock in the footnotes to this Item 5(a) are made supplementally and for informational purposes only.

(a) (i) Master Account II Holdings may be deemed the beneficial owner of 1,150,079¹ shares of Common
Stock held for its own account (approximately 5.4% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3 (d)(1)(i) under the Act).

(ii) Master Account II may be deemed the beneficial owner of 1,150,079² shares of Common Stock
(approximately 5.4% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of 1,150,079 shares of Common Stock held for the account of Master Account II
Holdings.

(iii) Capital Partners (100) may be deemed the beneficial owner of 154,289³ shares of
Common Stock held for its own account (approximately 0.7% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act).

(iv) Advisors may be deemed the beneficial owner of 1,304,368⁴ shares of Common Stock (approximately 6.1%
of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of (A) 1,150,079 shares of Common Stock held for the account of Master Account II Holdings and
(B) 154,289 shares of Common Stock held for the account of Capital Partners (100).

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(v) Institutional Partners may be deemed the beneficial owner of 2,123,874 shares of Common Stock held for
its own account (approximately 9.9% of the total number of shares of Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under the Act).

(vi) MHRA may be deemed the beneficial owner of 205,476 shares of Common Stock held for its own account (approximately 1.0% of the total number of shares of
Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under the Act).

(vii) MHRM may be deemed the beneficial owner of 305,541
shares of Common Stock held for its own account (approximately 1.4% of the total number of shares of Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under the Act).

(viii) Institutional Advisors may be deemed the beneficial owner of 2,634,891 shares of Common Stock (approximately 12.3% of the total number of shares of
Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of (A) 2,123,874 shares of Common Stock held for the account of Institutional Partners, (B) 205,476 shares of Common Stock held
for the account of MHRA and (C) 305,541 shares of Common Stock held for the account of MHRM.

(ix) Institutional Partners II may be deemed the
beneficial owner of 960,033⁵ shares of Common Stock held for its own account (approximately 4.5% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule
13d-3(d)(1)(i) under the Act).

(x) Institutional Partners IIA may be deemed the beneficial owner of
2,418,660⁶ shares of Common Stock held for its own account (approximately 11.3% of the total number of shares of Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under
the Act).

(xi) Institutional Advisors II may be deemed the beneficial owner of 3,378,693⁷ shares of
Common Stock (approximately 15.8% of the total number of shares of Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of (A) 960,033 shares of Common Stock held for the account of
Institutional Partners II, and (B) 2,418,660 shares of Common Stock held for the account of Institutional Partners IIA.

(xii) Institutional Partners
III may be deemed the beneficial owner of 1,211,467⁸ shares of Common Stock held for its own account (approximately 5.7% of the total number of shares of Common Stock outstanding calculated in
accordance with Rule 13d-3 (d)(1)(i) under the Act).

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(xiii) Institutional Advisors III may be deemed the beneficial owner of 1,211,467⁹ shares of Common Stock (approximately 5.7% of the total number of shares of Common Stock outstanding calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of
1,211,467 shares of Common Stock held for the account of Institutional Partners III.

(xiv) MHRC may be deemed the beneficial owner of 1,304,368¹⁰ shares of Common Stock (approximately 6.1% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of all of
the shares of Common Stock otherwise described in Item 5(a)(iv) by virtue of MHRCs position as the managing member of Advisors.

(xv) MHRC I
may be deemed the beneficial owner of 2,634,891 shares of Common Stock (approximately 12.3% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of all of
the shares of Common Stock otherwise described in Item 5(a)(viii) by virtue of MHRC Is position as managing member of Institutional Advisors.

(xvi) MHRC II may be deemed the beneficial owner of 3,378,693¹¹ shares of Common Stock (approximately
15.8% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of all of the shares of Common Stock otherwise described in Item 5(a)(xi) by virtue of MHRC
IIs position as the managing member of Institutional Advisors II.

(xvii) Fund Management may be deemed the beneficial owner of 8,529,419¹² shares of Common Stock (approximately 39.8% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of all
of the shares of Common Stock otherwise described in this Item 5(a) by virtue of Fund Managements investment management agreement with Master Account II, Capital Partners (100), Institutional Partners, MHRA, MHRM, Institutional Partners
II, Institutional Partners IIA and Institutional Partners III.

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(xviii) MHR Holdings may be deemed the beneficial owner of 8,529,419¹³ shares of Common Stock (approximately 39.8% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of all
of the shares of Common Stock otherwise described in this Item 5(a) by virtue of MHR Holdings position as the managing member of Fund Management.

(xix) Dr. Rachesky may be deemed the beneficial owner of 8,544,419¹⁴ shares of Common Stock
(approximately 39.9% of the total number of shares of Common Stock outstanding, calculated in accordance with Rule 13d-3(d)(1)(i) under the Act). This number consists of (a) all of the shares of Common Stock otherwise described in this
Item 5(a) by virtue of Dr. Racheskys position as the managing member of each of MHRC, MHRC II, Institutional Advisors III and MHR Holdings and as the manager of MHRC I, and (b) 15,000 shares of Common Stock held directly by
Dr. Rachesky.

(b) (i) Master Account II Holdings may be deemed to have (x) the sole power to direct the disposition of 1,150,079 shares of
Common Stock which may be deemed to be beneficially owned by Master Account II Holdings as described above, and (y) the sole power to direct the voting of 1,150,079 shares of Common Stock which may be deemed to be beneficially owned by Master
Account II Holdings as described above.

(ii) Master Account II may be deemed to have (x) the sole power to direct the disposition of 1,150,079
shares of Common Stock which may be deemed to be beneficially owned by Master Account II as described above, and (y) the sole power to direct the voting of 1,150,079 shares of Common Stock which may be deemed to be beneficially owned by Master
Account II as described above.

(iii) Capital Partners (100) may be deemed to have (x) the sole power to direct the disposition of 154,289
shares of Common Stock which may be deemed to be beneficially owned by Capital Partners (100) as described above, and (y) the sole power to direct the voting of 154,289 shares of Common Stock which may be deemed to be beneficially owned by
Capital Partners (100) as described above.

(iv) Advisors may be deemed to have (x) the sole power to direct the disposition of 1,304,368 shares
of Common Stock which may be deemed to be beneficially owned by Advisors as described above, and (y) the sole power to direct the voting of 1,304,368 shares of Common Stock which may be deemed to be beneficially owned by Advisors as described
above.

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(v) Institutional Partners may be deemed to have (x) the sole power to direct the disposition of
2,123,874 shares of Common Stock which may be deemed to be beneficially owned by Institutional Partners as described above, and (y) the sole power to direct the voting of 2,123,874 shares of Common Stock which may be deemed to be beneficially
owned by Institutional Partners as described above.

(vi) MHRA may be deemed to have (x) the sole power to direct the disposition of 205,476 shares
of Common Stock which may be deemed to be beneficially owned by MHRA as described above, and (y) the sole power to direct the voting of 205,476 shares of Common Stock which may be deemed to be beneficially owned by MHRA as described above.

(vii) MHRM may be deemed to have (x) the sole power to direct the disposition of 305,541 shares of Common Stock which may be deemed to be beneficially
owned by MHRM as described above, and (y) the sole power to direct the voting of 305,541 shares of Common Stock which may be deemed to be beneficially owned by MHRM as described above.

(viii) Institutional Advisors may be deemed to have (x) the sole power to direct the disposition of 2,634,891 shares of Common Stock which may be deemed
to be beneficially owned by Institutional Advisors as described above, and (y) the sole power to direct the voting of 2,634,891 shares of Common Stock which may be deemed to be beneficially owned by Institutional Advisors as described above.

(ix) Institutional Partners II may be deemed to have (x) the sole power to direct the disposition of 960,033 shares of Common Stock which may be
deemed to be beneficially owned by Institutional Partners II as described above, and (y) the sole power to direct the voting of 960,033 shares of Common Stock which may be deemed to be beneficially owned by Institutional Partners II as
described above.

(x) Institutional Partners IIA may be deemed to have (x) the sole power to direct the disposition of 2,418,660 shares of Common
Stock which may be deemed to be beneficially owned by Institutional Partners IIA as described above, and (y) the sole power to direct the voting of 2,418,660 shares of Common Stock which may be deemed to be beneficially owned by Institutional
Partners IIA as described above.

(xi) Institutional Advisors II may be deemed to have (x) the sole power to direct the disposition of 3,378,693
shares of Common Stock which may be deemed to be beneficially owned by Institutional Advisors II as described above, and (y) the sole power to direct the voting of 3,378,693 shares of Common Stock which may be deemed to be beneficially owned by
Institutional Advisors II as described above.

(xii) Institutional Partners III may be deemed to have (x) the sole power to direct the disposition of
1,211,467 shares of Common Stock which may be deemed to be beneficially owned by Institutional Partners III as described above, and (y) the sole power to direct the voting of 1,211,467 shares of Common Stock which may be deemed to be
beneficially owned by Institutional Partners III as described above.

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(xiii) Institutional Advisors III may be deemed to have (x) the sole power to direct the disposition of
1,211,467 shares of Common Stock which may be deemed to be beneficially owned by Institutional Advisors III as described above, and (y) the sole power to direct the voting of 1,211,467 shares of Common Stock which may be deemed to be
beneficially owned by Institutional Advisors III as described above.

(xiv) MHRC may be deemed to have (x) the sole power to direct the disposition
of 1,304,368 shares of Common Stock which may be deemed to be beneficially owned by MHRC as described above, and (y) the sole power to direct the voting of 1,304,368 shares of Common Stock which may be deemed to be beneficially owned
by MHRC as described above.

(xv) MHRC I may be deemed to have (x) the sole power to direct the disposition of 2,634,891 shares of Common Stock which
may be deemed to be beneficially owned by MHRC I as described above, and (y) the sole power to direct the voting of 2,634,891 shares of Common Stock which may be deemed to be beneficially owned by MHRC I as described above.

(xvi) MHRC II may be deemed to have (x) the sole power to direct the disposition of 3,378,693 shares of Common Stock which may be deemed to be
beneficially owned by MHRC II as described above, and (y) the sole power to direct the voting of 3,378,693 shares of Common Stock which may be deemed to be beneficially owned by MHRC II as described above.

(xvii) Fund Management may be deemed to have (x) the sole power to direct the disposition of the 8,529,419 shares of Common Stock which may be
deemed to be beneficially owned by Fund Management as described above, and (y) the sole power to direct the voting of 8,529,419 shares of Common Stock which may be deemed to be beneficially owned by Fund Management as described above.

(xviii) MHR Holdings may be deemed to have (x) the sole power to direct the disposition of the 8,529,419 shares of Common Stock which may be deemed
to be beneficially owned by MHR Holdings as described above, and (y) the sole power to direct the voting of 8,529,419 shares of Common Stock which may be deemed to be beneficially owned by MHR Holdings as described above.

(xix) Dr. Rachesky may be deemed to have (x) the sole power to direct the disposition of the 8,544,419 shares of Common Stock which may be
deemed to be beneficially owned by Dr. Rachesky as described above, and (y) the sole power to direct the voting of 8,544,419 shares of Common Stock which may be deemed to be beneficially owned by Dr. Rachesky as described above.

(c) See Annex B to this Statement.

(d) (i) The
partners of Master Account II, including Advisors, have the right to participate in the receipt of dividends from, or proceeds from the sale of, the securities held for the account of Master Account II Holdings in accordance with their partnership
interests in Master Account II.

(ii) The partners of Capital Partners (100), including Advisors, have the right to participate in the receipt of
dividends from, or proceeds from the sale of, the securities held for the account of Capital Partners (100) in accordance with their partnership interests in Capital Partners (100).

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(iii) The partners of Institutional Partners, including Institutional Advisors, have the right to participate
in the receipt of dividends from, or proceeds from the sale of, the securities held for the account of Institutional Partners in accordance with their partnership interests in Institutional Partners.

(iv) The partners of MHRA, including Institutional Advisors, have the right to participate in the receipt of dividends from, or proceeds from the sale of, the
securities held for the account of MHRA in accordance with their partnership interests in MHRA.

(v) The partners of MHRM, including Institutional
Advisors, have the right to participate in the receipt of dividends from, or proceeds from the sale of, the securities held for the account of MHRM in accordance with their partnership interests in MHRM.

(vi) The partners of Institutional Partners II, including Institutional Advisors II, have the right to participate in the receipt of dividends from, or
proceeds from the sale of, the securities held for the account of Institutional Partners II in accordance with their partnership interests in Institutional Partners II.

(vii) The partners of Institutional Partners IIA, including Institutional Advisors II, have the right to participate in the receipt of dividends from, or
proceeds from the sale of, the securities held for the account of Institutional Partners IIA in accordance with their partnership interests in Institutional Partners IIA.

(viii) The partners of Institutional Partners III, including Institutional Advisors III, have the right to participate in the receipt of dividends from, or
proceeds from the sale of, the securities held for the account of Institutional Partners III in accordance with their partnership interests in Institutional Partners III.

(e) Not applicable.

Item 7.
Material to be Filed as Exhibits

Joint Filing Agreement, dated as of March 10, 2016 by and among Master Account II Holdings, Master Account II,
Advisors, Institutional Partners, Institutional Advisors, Institutional Partners IIA, Institutional Advisors II, Institutional Partners III, Institutional Advisors III, MHRC, MHRC I, MHRC II, Fund Management, MHR Holdings and Dr. Rachesky.

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SIGNATURES

After reasonable inquiry and to the best of my knowledge and belief, the undersigned certifies that the information set forth in this
Statement is true, complete and correct.

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Annex A

Annex B

The following table describes transactions in shares of Common Stock that were effected during the past sixty days, or since the last filing of a Schedule 13D
or amendment thereto, whichever is less, by the persons named in response to paragraph (a) of Item 5.

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Exhibit Index