SC 13G/A | 2019-01-31 | BlackRock Inc. | PARK ELECTROCHEMICAL CORP | 2,855,703 | 14.1% | EDGAR |
SC 13D/A | 2019-01-24 | GAMCO INVESTORS, INC. ET AL | PARK ELECTROCHEMICAL CORP | 59,200 | 0.3% | EDGAR |
SC 13G/A | 2018-06-04 | ROYCE & ASSOCIATES LP | PARK ELECTROCHEMICAL CORP | 1,143,901 | 5.6% | EDGAR |
SC 13G | 2018-05-02 | Shore Peter | PARK ELECTROCHEMICAL CORP | 1,035,043 | 5.1% | EDGAR |
SC 13G | 2018-05-02 | Shore Robin | PARK ELECTROCHEMICAL CORP | 1,032,444 | 5.1% | EDGAR |
SC 13D/A | 2018-04-27 | SHORE BRIAN E | PARK ELECTROCHEMICAL CORP | 1,537,519 | 7.5% | EDGAR |
SC 13G/A | 2018-02-14 | RENAISSANCE TECHNOLOGIES LLC | PARK ELECTROCHEMICAL CORP | 1,159,400 | 5.7% | EDGAR |
SC 13G/A | 2018-02-09 | VANGUARD GROUP INC | PARK ELECTROCHEMICAL CORP | 1,744,331 | 8.6% | EDGAR |
SC 13G/A | 2018-02-09 | DIMENSIONAL FUND ADVISORS LP | PARK ELECTROCHEMICAL CORP | 1,141,550 | 5.6% | EDGAR |
SC 13G/A | 2018-01-23 | ROYCE & ASSOCIATES LP | PARK ELECTROCHEMICAL CORP | 2,374,437 | 11.7% | EDGAR |
SC 13G/A | 2018-01-19 | BlackRock Inc. | PARK ELECTROCHEMICAL CORP | 2,514,407 | 12.4% | EDGAR |
SC 13G/A | 2017-11-07 | HEARTLAND ADVISORS INC | PARK ELECTROCHEMICAL CORP | 955,453 | 4.7% | EDGAR |
SC 13G | 2017-02-14 | RENAISSANCE TECHNOLOGIES LLC | PARK ELECTROCHEMICAL CORP | 1,017,900 | 5.0% | EDGAR |
SC 13G/A | 2017-02-10 | VANGUARD GROUP INC | PARK ELECTROCHEMICAL CORP | 1,657,107 | 8.2% | EDGAR |
SC 13G | 2017-02-09 | DIMENSIONAL FUND ADVISORS LP | PARK ELECTROCHEMICAL CORP | 1,060,668 | 5.2% | EDGAR |
SC 13G/A | 2017-02-02 | HEARTLAND ADVISORS INC | PARK ELECTROCHEMICAL CORP | 1,803,797 | 8.9% | EDGAR |
SC 13G/A | 2017-01-17 | BlackRock Inc. | PARK ELECTROCHEMICAL CORP | 2,305,686 | 11.4% | EDGAR |
SC 13G/A | 2017-01-11 | ROYCE & ASSOCIATES LP | PARK ELECTROCHEMICAL CORP | 2,871,634 | 14.2% | EDGAR |
SC 13G/A | 2016-05-10 | BlackRock Inc. | PARK ELECTROCHEMICAL CORP | 2,032,993 | 10.0% | EDGAR |
SC 13D/A | 2016-04-07 | GAMCO INVESTORS, INC. ET AL | PARK ELECTROCHEMICAL CORP | 352,999 | 1.7% | EDGAR |