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BCP IV GP L.L.C.

Disclosed activity across 1 company

Tapewire entity
159678
SEC CIK
0001516552

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Reported relationships

Latest disclosed role at each company.

No relationships currently tracked through insider filings.

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

No balances currently tracked through insider filings.

Past disclosures · reporting ended (1)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Section 16 reporting ended · disclosed 2019-03-01. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common SharesSEC Table I · non-derivativeIndirectSee Footnotes25,563,334 Reported balance After 2019-02-27 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2019-02-27 · Sale · Disposed 21,101,965 · Balance 25,563,334

F1: These common shares, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer") are held by Blackstone Capital Partners (Cayman) IV L.P. ("BCP Cayman IV").

F6: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Common SharesSEC Table I · non-derivativeIndirectSee Footnotes416,888 Reported balance After 2019-02-27 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2019-02-27 · Sale · Disposed 344,132 · Balance 416,888

F2: These Common Shares are held by Blackstone Capital Partners (Cayman) IV-A L.P. ("BCP Cayman IV-A").

F6: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Common SharesSEC Table I · non-derivativeIndirectSee Footnotes657,075 Reported balance After 2019-02-27 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2019-02-27 · Sale · Disposed 542,401 · Balance 657,075

F3: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A L.P. ("BFIP").

F6: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Common SharesSEC Table I · non-derivativeIndirectSee Footnotes545,566 Reported balance After 2019-02-27 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 4 · 2019-02-27 · Sale · Disposed 450,353 · Balance 545,566

F4: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. ("BFIP SMD").

F6: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Common SharesSEC Table I · non-derivativeIndirectSee Footnotes74,078 Reported balance After 2019-02-27 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 5 · 2019-02-27 · Sale · Disposed 61,149 · Balance 74,078

F5: These Common Shares are held by Blackstone Participation Partnership (Cayman) IV L.P. ("BPP", together with BCP Cayman IV, BCP Cayman IV-A, BFIP and BFIP SMD, the "Blackstone Funds").

F6: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: These common shares, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer") are held by Blackstone Capital Partners (Cayman) IV L.P. ("BCP Cayman IV").

F2: These Common Shares are held by Blackstone Capital Partners (Cayman) IV-A L.P. ("BCP Cayman IV-A").

F3: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A L.P. ("BFIP").

F4: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. ("BFIP SMD").

F5: These Common Shares are held by Blackstone Participation Partnership (Cayman) IV L.P. ("BPP", together with BCP Cayman IV, BCP Cayman IV-A, BFIP and BFIP SMD, the "Blackstone Funds").

F6: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
February 27, 2019 Filed Mar 1, 2019 17:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 61,149 $6.51 $398,079.99
Disclosure

SEC source: 0000899243-19-005473 · doc4.xml · nonDerivative · entry 5

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 74,078

F5 · ownership.nature: These Common Shares are held by Blackstone Participation Partnership (Cayman) IV L.P. ("BPP", together with BCP Cayman IV, BCP Cayman IV-A, BFIP and BFIP SMD, the "Blackstone Funds").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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February 27, 2019 Filed Mar 1, 2019 17:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 450,353 $6.51 $2,931,798.03
Disclosure

SEC source: 0000899243-19-005473 · doc4.xml · nonDerivative · entry 4

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 545,566

F4 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. ("BFIP SMD").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
February 27, 2019 Filed Mar 1, 2019 17:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 542,401 $6.51 $3,531,030.51
Disclosure

SEC source: 0000899243-19-005473 · doc4.xml · nonDerivative · entry 3

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 657,075

F3 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A L.P. ("BFIP").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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February 27, 2019 Filed Mar 1, 2019 17:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 344,132 $6.51 $2,240,299.32
Disclosure

SEC source: 0000899243-19-005473 · doc4.xml · nonDerivative · entry 2

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 416,888

F2 · ownership.nature: These Common Shares are held by Blackstone Capital Partners (Cayman) IV-A L.P. ("BCP Cayman IV-A").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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February 27, 2019 Filed Mar 1, 2019 17:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 21,101,965 $6.51 $137,373,792.15
Disclosure

SEC source: 0000899243-19-005473 · doc4.xml · nonDerivative · entry 1

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 25,563,334

F1 · ownership.nature: These common shares, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer") are held by Blackstone Capital Partners (Cayman) IV L.P. ("BCP Cayman IV").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
September 19, 2018 Filed Sep 21, 2018 16:39 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 8,956 $8.94 $80,066.64
Disclosure

SEC source: 0000899243-18-025010 · doc4.xml · nonDerivative · entry 5

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 135,227

F5 · ownership.nature: These Common Shares are held by Blackstone Participation Partnership (Cayman) IV L.P. ("BPP", together with BCP Cayman IV, BCP Cayman IV-A, BFIP and BFIP SMD, the "Blackstone Funds").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
September 19, 2018 Filed Sep 21, 2018 16:39 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 65,963 $8.94 $589,709.22
Disclosure

SEC source: 0000899243-18-025010 · doc4.xml · nonDerivative · entry 4

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 995,919

F4 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. ("BFIP SMD").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
September 19, 2018 Filed Sep 21, 2018 16:39 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 79,445 $8.94 $710,238.30
Disclosure

SEC source: 0000899243-18-025010 · doc4.xml · nonDerivative · entry 3

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,199,476

F3 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A L.P. ("BFIP").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
September 19, 2018 Filed Sep 21, 2018 16:39 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 50,405 $8.94 $450,620.70
Disclosure

SEC source: 0000899243-18-025010 · doc4.xml · nonDerivative · entry 2

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 761,020

F2 · ownership.nature: These Common Shares are held by Blackstone Capital Partners (Cayman) IV-A L.P. ("BCP Cayman IV-A").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
September 19, 2018 Filed Sep 21, 2018 16:39 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 3,090,802 $8.94 $27,631,769.88
Disclosure

SEC source: 0000899243-18-025010 · doc4.xml · nonDerivative · entry 1

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 46,665,299

F1 · ownership.nature: These common shares, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer") are held by Blackstone Capital Partners (Cayman) IV L.P. ("BCP Cayman IV").

F6 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F7 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F8 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F9 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
May 26, 2017 Filed May 31, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 88,066 $7.15 $629,671.90
Disclosure

SEC source: 0000899243-17-014853 · doc4.xml · nonDerivative · entry 5

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 144,183

F1 · price: This amount represents the $7.25 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.10 per Common Share.

F6 · ownership.nature: These Common Shares are held by Blackstone Participation Partnership (Cayman) IV L.P. ("BPP", together with BCP Cayman IV, BCP Cayman IV-A, BFIP and BFIP SMD, the "Blackstone Funds").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
May 26, 2017 Filed May 31, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 648,610 $7.15 $4,637,561.50
Disclosure

SEC source: 0000899243-17-014853 · doc4.xml · nonDerivative · entry 4

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,061,882

F1 · price: This amount represents the $7.25 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.10 per Common Share.

F5 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. ("BFIP SMD").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
May 26, 2017 Filed May 31, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 781,182 $7.15 $5,585,451.30
Disclosure

SEC source: 0000899243-17-014853 · doc4.xml · nonDerivative · entry 3

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,278,921

F1 · price: This amount represents the $7.25 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.10 per Common Share.

F4 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A L.P. ("BFIP").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
May 26, 2017 Filed May 31, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 457,034 $7.15 $3,267,793.10
Disclosure

SEC source: 0000899243-17-014853 · doc4.xml · nonDerivative · entry 2

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 811,425

F1 · price: This amount represents the $7.25 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.10 per Common Share.

F3 · ownership.nature: These Common Shares are held by Blackstone Capital Partners (Cayman) IV-A L.P. ("BCP Cayman IV-A").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

Read SEC document
May 26, 2017 Filed May 31, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 28,025,108 $7.15 $200,379,522.20
Disclosure

SEC source: 0000899243-17-014853 · doc4.xml · nonDerivative · entry 1

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 49,756,101

F1 · price: This amount represents the $7.25 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.10 per Common Share.

F2 · ownership.nature: These Common Shares are held by Blackstone Capital Partners (Cayman) IV L.P. ("BCP Cayman IV").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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January 18, 2017 Filed Jan 20, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 37,752 $6.58 $248,408.16
Disclosure

SEC source: 0000899243-17-001680 · doc4.xml · nonDerivative · entry 5

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 232,249

F1 · price: This amount represents the $6.65 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.07 per Common Share.

F6 · ownership.nature: These Common Shares are held by Blackstone Participation Partnership (Cayman) IV L.P. ("BPP", together with BCP Cayman IV, BCP Cayman IV-A, BFIP and BFIP SMD, the "Blackstone Funds").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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January 18, 2017 Filed Jan 20, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 278,037 $6.58 $1,829,483.46
Disclosure

SEC source: 0000899243-17-001680 · doc4.xml · nonDerivative · entry 4

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,710,492

F1 · price: This amount represents the $6.65 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.07 per Common Share.

F5 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. ("BFIP SMD").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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January 18, 2017 Filed Jan 20, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 334,865 $6.58 $2,203,411.70
Disclosure

SEC source: 0000899243-17-001680 · doc4.xml · nonDerivative · entry 3

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 2,060,103

F1 · price: This amount represents the $6.65 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.07 per Common Share.

F4 · ownership.nature: These Common Shares are held by Blackstone Family Investment Partnership (Cayman) IV-A L.P. ("BFIP").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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January 18, 2017 Filed Jan 20, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 206,185 $6.58 $1,356,697.30
Disclosure

SEC source: 0000899243-17-001680 · doc4.xml · nonDerivative · entry 2

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,268,459

F1 · price: This amount represents the $6.65 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.07 per Common Share.

F3 · ownership.nature: These Common Shares are held by Blackstone Capital Partners (Cayman) IV-A L.P. ("BCP Cayman IV-A").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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January 18, 2017 Filed Jan 20, 2017 18:00 UTC Kosmos Energy Ltd. KOS · Entity 4605 SaleCommon Shares 12,643,161 $6.58 $83,191,999.38
Disclosure

SEC source: 0000899243-17-001680 · doc4.xml · nonDerivative · entry 1

BCP IV GP L.L.C. · CIK 0001516552 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV LP · CIK 0001273169 · 10% owner

BLACKSTONE CAPITAL PARTNERS CAYMAN IV- A LP · CIK 0001273170 · 10% owner

BLACKSTONE FAMILY INVESTMENT PARTNERSHIP CAYMAN IV-A LP · CIK 0001273171 · 10% owner

Blackstone Family Investment Partnership (Cayman) IV-A SMD L.P. · CIK 0001516550 · 10% owner

Blackstone Participation Partnership (Cayman) IV L.P. · CIK 0001344486 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnotes

Disclosed balance after: 77,781,209

F1 · price: This amount represents the $6.65 public offering price per common share, par value $0.01 per share (the "Common Shares"), of Kosmos Energy Ltd. (the "Issuer"), less the underwriting discount of $0.07 per Common Share.

F2 · ownership.nature: These Common Shares are held by Blackstone Capital Partners (Cayman) IV L.P. ("BCP Cayman IV").

F7 · ownership.nature: The general partner of BFIP SMD is Blackstone Family GP L.L.C., which is wholly owned by Blackstone's senior managing directors and controlled by Mr. Stephen A. Schwarzman, its founder. The general partner of BCP Cayman IV and BCP Cayman IV-A is Blackstone Management Associates (Cayman) IV L.P. ("BMA"). A general partner of BMA, BFIP, and BPP is BCP IV GP L.L.C ("BCP IV"). Blackstone Holdings III L.P. is the sole member of BCP IV. The general partner of Blackstone Holdings III L.P. is Blackstone Holdings III GP L.P. The general partner of Blackstone Holdings III GP L.P. is Blackstone Holdings III GP Management L.L.C. The sole member of Blackstone Holdings III GP Management L.L.C. is The Blackstone Group L.P. The general partner of The Blackstone Group L.P. is Blackstone Group Management L.L.C. Blackstone Group Management L.L.C. is wholly owned by Blackstone's senior managing directors and controlled by its founder, Stephen A. Schwarzman.

F8 · ownership.nature: Due to the limitations of the electronic filing system certain Reporting Persons are filing a separate Form 4.

F9 · ownership.nature: Information with respect to each of the Reporting Persons is given solely by such Reporting Person, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person.

F10 · ownership.nature: Each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein), disclaims beneficial ownership of the securities held by the Blackstone Funds, except to the extent of such Reporting Person's pecuniary interest therein, and, pursuant to Rule 16a-1(a)(4) under the Securities Exchange Act of 1934, each of the Reporting Persons (other than each of the Blackstone Funds to the extent they directly hold securities reported herein) states that the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of all of the reported securities for purposes of Section 16 or for any other purpose.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.