| SC 13G/A | 2019-02-14 | TimesSquare Capital Management, LLC | K2M GROUP HOLDINGS, INC. | 0 | 0.0% | EDGAR |
| SC 13D/A | 2018-11-09 | GAMCO INVESTORS, INC. ET AL | K2M GROUP HOLDINGS, INC. | 1,617,060 | 3.7% | EDGAR |
| SC 13D | 2018-10-04 | GAMCO INVESTORS, INC. ET AL | K2M GROUP HOLDINGS, INC. | 1,329,775 | 3.0% | EDGAR |
| SC 13G/A | 2018-09-10 | PRICE T ROWE ASSOCIATES INC /MD/ | K2M GROUP HOLDINGS, INC. | 2,661,503 | 6.1% | EDGAR |
| SC 13G/A | 2018-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | K2M GROUP HOLDINGS, INC. | 7,417,240 | 17.1% | EDGAR |
| SC 13G/A | 2018-02-14 | WADDELL & REED FINANCIAL INC | K2M GROUP HOLDINGS, INC. | 1,321,926 | 1.9% | EDGAR |
| SC 13G | 2018-02-14 | TimesSquare Capital Management, LLC | K2M GROUP HOLDINGS, INC. | 2,532,675 | 5.8% | EDGAR |
| SC 13G | 2018-02-08 | WELLINGTON MANAGEMENT GROUP LLP | K2M GROUP HOLDINGS, INC. | 2,530,181 | 5.8% | EDGAR |
| SC 13G | 2018-02-01 | BlackRock Inc. | K2M GROUP HOLDINGS, INC. | 2,794,420 | 6.4% | EDGAR |
| SC 13G/A | 2018-01-02 | Welsh, Carson, Anderson & Stowe XI, L.P. | K2M GROUP HOLDINGS, INC. | 0 | 0.0% | EDGAR |
| SC 13G | 2017-02-14 | WADDELL & REED FINANCIAL INC | K2M GROUP HOLDINGS, INC. | 1,398,325 | 3.3% | EDGAR |
| SC 13G/A | 2017-02-07 | PRICE T ROWE ASSOCIATES INC /MD/ | K2M GROUP HOLDINGS, INC. | 6,191,009 | 14.6% | EDGAR |
| SC 13G/A | 2017-01-04 | Welsh, Carson, Anderson & Stowe XI, L.P. | K2M GROUP HOLDINGS, INC. | 9,310,926 | 22.1% | EDGAR |
| SC 13G/A | 2016-08-10 | PRICE T ROWE ASSOCIATES INC /MD/ | K2M GROUP HOLDINGS, INC. | 4,321,570 | 10.4% | EDGAR |
| SC 13G/A | 2016-02-16 | FFC Partners III-B, L.P. | K2M GROUP HOLDINGS, INC. | 1,583,941 | 3.8% | EDGAR |
| SC 13G | 2016-02-12 | PRICE T ROWE ASSOCIATES INC /MD/ | K2M GROUP HOLDINGS, INC. | 2,401,960 | 5.8% | EDGAR |
| SC 13G/A | 2016-01-22 | Welsh, Carson, Anderson & Stowe XI, L.P. | K2M GROUP HOLDINGS, INC. | 13,727,751 | 33.3% | EDGAR |
| SC 13G | 2015-02-12 | FFC Partners III-B, L.P. | K2M GROUP HOLDINGS, INC. | 2,223,075 | 5.6% | EDGAR |
| SC 13G | 2015-01-22 | Welsh, Carson, Anderson & Stowe XI, L.P. | K2M GROUP HOLDINGS, INC. | 21,879,385 | 58.6% | EDGAR |