| SC 13G/A | 2019-01-31 | Division of Investment, Department of the Treasury, State of New Jersey | Limbach Holdings, Inc. | 730,000 | 9.6% | EDGAR |
| SC 13G/A | 2019-01-23 | AltraVue Capital, LLC | Limbach Holdings, Inc. | 10 | 12.0% | EDGAR |
| SC 13G | 2019-01-16 | AltraVue Capital, LLC | Limbach Holdings, Inc. | 481,083 | 6.3% | EDGAR |
| SC 13G | 2018-11-05 | PVAM Perlus Microcap Fund, L.P. | Limbach Holdings, Inc. | 389,000 | 5.1% | EDGAR |
| SC 13D/A | 2018-07-16 | 1347 Investors LLC | Limbach Holdings, Inc. | 2,942,515 | 36.1% | EDGAR |
| SC 13G/A | 2018-04-13 | Greenhaven Road Capital Fund 1 | Limbach Holdings, Inc. | 645,844 | 8.3% | EDGAR |
| SC 13G | 2018-04-12 | Greenhaven Road Capital Fund 1 | Limbach Holdings, Inc. | 863,516 | 10.9% | EDGAR |
| SC 13G | 2018-02-09 | DIMENSIONAL FUND ADVISORS LP | Limbach Holdings, Inc. | 447,839 | 6.0% | EDGAR |
| SC 13D/A | 2018-02-01 | FdG HVAC LLC | Limbach Holdings, Inc. | 0 | 0.0% | EDGAR |
| SC 13D/A | 2018-01-19 | 1347 Investors LLC | Limbach Holdings, Inc. | 3,017,099 | 37.1% | EDGAR |
| SC 13G/A | 2018-01-10 | Division of Investment, Department of the Treasury, State of New Jersey | Limbach Holdings, Inc. | 734,000 | 9.8% | EDGAR |
| SC 13D/A | 2017-12-13 | 1347 Investors LLC | Limbach Holdings, Inc. | 3,577,099 | 41.2% | EDGAR |
| SC 13D/A | 2017-07-25 | 1347 Investors LLC | Limbach Holdings, Inc. | 4,077,099 | 46.9% | EDGAR |
| SC 13G | 2017-02-14 | Castle Creek Arbitrage, LLC | Limbach Holdings, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2017-02-13 | AQR CAPITAL MANAGEMENT LLC | Limbach Holdings, Inc. | 200,301 | 2.6% | EDGAR |
| SC 13G/A | 2017-02-09 | DAVIDSON KEMPNER PARTNERS | Limbach Holdings, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2017-02-08 | Polar Asset Management Partners Inc. | Limbach Holdings, Inc. | 0 | 0.0% | EDGAR |
| SC 13G | 2017-01-03 | Division of Investment, Department of the Treasury, State of New Jersey | Limbach Holdings, Inc. | 694,000 | 9.3% | EDGAR |
| SC 13D/A | 2016-08-05 | 1347 Investors LLC | Limbach Holdings, Inc. | 4,441,015 | 59.0% | EDGAR |
| SC 13D | 2016-08-01 | Bacon Charles A. III | Limbach Holdings, Inc. | 383,322 | 6.3% | EDGAR |