Stone, Clay, Glass, And Concrete Products - Latest Activist Disclosures

This table shows recent activist investor (Schedule 13D) filings made in this industry. Any investor or hedge fund that makes an investment with the intention of influencing management is considered an activist investor and must file a 13D.

Date Form Target Company Investor Shares Ownership
(Percent)		 Ownership Change
(Percent)
2025-08-15 13D/A TGLS / Tecnoglass Inc. Energy Holding Corp 20,210,090 43.00 -6.89
2025-06-05 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,815,675 33.90 3.23
2025-05-14 13D/A TGLS / Tecnoglass Inc. Energy Holding Corp 21,705,988 46.20 -6.42
2024-12-10 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,758,865 32.86 3.73
2024-11-13 13D/A TGLS / Tecnoglass Inc. Energy Holding Corp 23,195,988 49.40 -5.81
2024-08-02 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,695,618 31.68 3.92
2024-06-25 13D/A TGLS / Tecnoglass Inc. Energy Holding Corp 24,628,108 52.40 0.00
2024-06-13 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,631,610 30.48 6.84
2024-03-07 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,527,191 28.54 4.23
2024-02-05 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,465,256 27.37 8.02
2024-01-03 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,356,453 25.30 4.34
2023-12-05 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,300,088 24.29 5.96
2023-10-03 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,226,980 22.92 6.53
2023-09-19 13D/A CSTE / Caesarstone Ltd. Tene Growth Capital Iii (g.p.) Co Ltd. 14,029,494 40.70 0.99
2023-09-19 13D/A CSTE / Caesarstone Ltd. Mifalei Sdot-Yam Agricultural Cooperative Society Ltd. 14,029,494 40.65 0.00
2023-08-08 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,151,740 21.52 7.42
2023-05-26 13D/A TGLS / Tecnoglass Inc. Energy Holding Corp 24,628,108 51.70 13.91
2023-05-16 13D/A SMID / Smith-Midland Corporation Thompson Davis & Co., Inc. 1,072,191 20.03 39.31
2023-01-18 13D PHOT / GrowLife, Inc. Huebert Trevor 4,181,185 25.74
2023-01-18 13D PHOT / GrowLife, Inc. Schwartz Lindsey 4,340,905 26.72
2022-03-04 13D RETO / ReTo Eco-Solutions, Inc. Li Xiaoping 2,050,000 6.70
2021-03-23 13D/A CPSH / CPS Technologies Corporation Ard Master Lp 0 0.00
2020-10-20 13D/A EXP / Eagle Materials Inc. Sachem Head Capital Management LP 1,942,834 4.65 -17.07
2020-10-02 13D/A EXP / Eagle Materials Inc. Sachem Head Capital Management LP 2,342,834 5.60 -23.31
2020-07-31 13D/A EXP / Eagle Materials Inc. Sachem Head Capital Management LP 3,055,000 7.30 -16.76
2020-03-27 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,311,888 4.90 -22.34
2020-01-08 13D/A OI / O-I Glass, Inc. Atlantic Investment Management Inc 7,651,765 4.90 -4.72
2019-11-12 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,689,332 6.40 0.00
2019-11-08 13D DYSL / Dynasil Corporation of America Hale Martin M Jr 1,105,000 7.47
2019-11-01 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,689,332 6.40 0.00
2019-10-31 13D OI / O-I Glass, Inc. Atlantic Investment Management Inc 8,031,235 5.20 1.82
2019-10-28 13D/A CSTE / Caesarstone Ltd. Mifalei Sdot-Yam Agricultural Cooperative Society Ltd. 14,029,494 40.80 22.64
2019-10-11 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,689,332 6.40 0.00
2019-09-13 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,689,332 6.40 0.00
2019-08-06 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,689,332 6.40 0.00
2019-05-30 13D/A EXP / Eagle Materials Inc. Sachem Head Capital Management LP 3,670,000 8.30 -10.49
2019-05-08 13D/A EXP / Eagle Materials Inc. Sachem Head Capital Management LP 4,100,000 8.90 0.00
2019-04-26 13D/A USG / USCF ETF Trust - USCF Gold Strategy Plus Income Fund Gebr. Knauf Verwaltungsgesellschaft Kg 14,758,258 100.00 -74.62
2019-03-28 13D EXP / Eagle Materials Inc. Sachem Head Capital Management LP 4,100,000 8.90
2019-02-11 13D/A APOG / Apogee Enterprises, Inc. Engaged Capital LLC 1,689,332 6.20 -1.27
2019-01-25 13D/A DYSL / Dynasil Corporation of America Entine Steven M. 1,396,325 8.03 0.00
2019-01-17 13D DYSL / Dynasil Corporation of America Entine Steven M. 1,396,325 8.03 0.00
2019-01-16 13D DYSL / Dynasil Corporation of America Entine Steven M. 1,396,325 8.03
2018-12-28 13D/A DYSL / Dynasil Corporation of America Sulick Peter 3,318,730 19.10 19.43
2018-12-20 13D/A OI / O-I Glass, Inc. Atlantic Investment Management Inc 7,887,675 4.90 -8.85
2018-12-20 13D/A DYSL / Dynasil Corporation of America Sulick Peter 2,778,730 16.00 94.77
2018-12-19 13D/A DYSL / Dynasil Corporation of America Dynasil Corp Of America 2,778,730 16.00
2018-11-21 13D/A CSTE / Caesarstone Ltd. Tene Growth Capital Iii (g.p.) Co Ltd. 13,892,132 40.40 2.77
2018-10-31 13D/A OI / O-I Glass, Inc. Atlantic Investment Management Inc 8,653,477 5.40 -8.35
2018-09-14 13D/A OI / O-I Glass, Inc. Atlantic Investment Management Inc 9,442,027 5.90 0.00