X0306 4 2016-02-03 1 0001432732 TriVascular Technologies, Inc. TRIV 0001383391 New Enterprise Associates 12, Limited Partnership 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001383390 NEA Partners 12, Limited Partnership 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001383389 NEA 12 GP, LLC 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001219855 BARRETT M JAMES 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001277631 BASKETT FOREST 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001005561 BARRIS PETER J 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001235112 KERINS PATRICK J 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001270521 KOLLURI KRISHNA KITTU 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 0001237289 SANDELL SCOTT D 1954 GREENSPRING DRIVE SUITE 600 TIMONIUM MD 21093 0 0 1 0 Common Stock 2016-02-03 4 D 0 3943269 D 0 D These shares were disposed of pursuant to the merger agreement between the issuer and Endologix, Inc. (such transaction, the "Merger"). In connection with the closing of the Merger, the reporting person received 0.6312 share of Endologix common stock and $0.34 in cash for each share of issuer common stock held by such reporting person, for a total consideration of $4.95 per share based upon the closing price of Endologix common stock on February 2, 2016. The shares are directly held by New Enterprise Associates 12, Limited Partnership ("NEA 12") and indirectly held by NEA Partners 12, Limited Partnership ("NEA Partners 12"), the sole general partner of NEA 12, NEA 12 GP, LLC ("NEA 12 GP"), the sole general partner of NEA Partners 12, and the individual managers of NEA 12 GP (NEA Partners 12, NEA 12 GP and the individual managers of NEA 12 GP together, the "NEA 12 Indirect Reporting Persons"). The individual managers of NEA 12 GP are M. James Barrett, Peter J. Barris, Forest Baskett, Patrick J. Kerins, Krishna "Kittu" Kolluri, and Scott D. Sandell. The NEA 12 Indirect Reporting Persons disclaim beneficial ownership within the meaning of Section 16 of the Securities Exchange Act of 1934, as amended, or otherwise of such portion of the NEA 12 shares in which the NEA 12 Indirect Reporting Persons have no pecuniary interest. /s/ Sasha Keough, attorney-in-fact 2016-02-04