Del. Code Ann. tit. 8, § 364
Stock certificates; notices regarding uncertificated stock
79 Del. Laws, c. 122, § 8; 81 Del. Laws, c. 86, § 36;
Any stock certificate issued by a public benefit corporation shall note conspicuously that the corporation is a public benefit corporation formed pursuant to this subchapter. Any notice given by a public benefit corporation pursuant to § 151(f) of this title shall state conspicuously that the corporation is a public benefit corporation formed pursuant to this subchapter.