X0306 4 2018-12-04 0 0001000683 BLONDER TONGUE LABORATORIES INC BDR 0001757536 Grauch Edward Rowland C/O BLONDER TONGUE LABORATORIES, INC. ONE JAKE BROWN ROAD OLD BRIDGE NJ 08857 0 1 0 0 Executive Vice President & COO Common Stock, par value $0.001 2018-12-04 4 P 0 20239 1.1398 A 140024 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $1.13 to $1.15, inclusive. The reporting person undertakes to provide to Blonder Tongue Laboratories, Inc., any security holder of Blonder Tongue Laboratories, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnote (1) to this Form 4. /s/Edward R. Grauch 2018-12-05