K2M GROUP HOLDINGS, INC.

Quarterly Report for period ending 2018-09-30

Quarterly Report for period ending 2018-06-30

Quarterly Report for period ending 2018-03-31

Annual Report for period ending 2017-12-31

Quarterly Report for period ending 2017-09-30

Quarterly Report for period ending 2017-06-30

Quarterly Report for period ending 2017-03-31

Annual Report for period ending 2016-12-31

Annual Report for period ending 2016-12-31

Annual Report for period ending 2016-12-31

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Current report filing

Notice of termination of registration of a class of securities under Section 12(b)

Notice of Effectiveness

Notification filed by national security exchange to report the removal from listing and registration of matured, redeemed or retired securities

Post-effective amendment to a registration statement that is not immediately effective upon filing

Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1)

Specialized Disclosure Report filed pursuant to Section 1502 of the Dodd-Frank Wall Street Reform and Consumer Protection Act relating to the use of conflict minerals (Rule 13p-1)

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

Notice of Effectiveness

A correspondence can be sent as a document with another submission type or can be sent as a separate submission.

TimesSquare Capital Management, LLC: Major Shareholders

TRAYNOR SEAN: Statement of changes in beneficial ownership of securities

Major Eric D: Statement of changes in beneficial ownership of securities

BRODNAX BRETT: Statement of changes in beneficial ownership of securities

KOSTUIK JOHN PHILIP MD: Statement of changes in beneficial ownership of securities

RANELLI RAY A: Statement of changes in beneficial ownership of securities

Queally Paul B.: Statement of changes in beneficial ownership of securities

Cole Gregory S: Statement of changes in beneficial ownership of securities

PELAK DANIEL A: Statement of changes in beneficial ownership of securities

FERRER CARLOS A: Statement of changes in beneficial ownership of securities

Post-effective amendment to a S-8 registration statement

Post-effective amendment to a S-8 registration statement

Prospectus filed pursuant to Rule 424(b)(7)

Filing under Securities Act Rules 163/433 of free writing prospectuses

Prospectus filed pursuant to Rule 424(b)(7)

Filing under Securities Act Rules 163/433 of free writing prospectuses

Initial registration statement for securities to be offered to employees pursuant to employee benefit plans

Prospectus filed pursuant to Rule 424(b)(7)

Prospectus filed pursuant to Rule 424(b)(7)

Registration statement for specified transactions by certain issuers

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive proxy statement relating to a merger, acquisition, or disposition

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.

Definitive additional proxy soliciting materials including Rule 14(a)(12) material. Note: Submission type DEFA14A can be filed as part of Form 8-K. For filers subject to 8-K filing requirements, we recommend the use of the 8-K combined form type as the easiest method for fulfilling your filing requirement for both forms.