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EX-31.1 - CERTIFICATION PURSUANT TO RULE 13A-14(A)/15D-14(A) CERTIFICATIONS SECTION 302 OF - root9B Holdings, Inc.rtnb_ex311.htm
EX-10.7 - FIRST AMENDMENT TO SECURITIES PURCHASE AGREEMENT, EFFECTIVE DECEMBER 22, 2016 - root9B Holdings, Inc.rtnb_ex1027.htm
EX-4.19 - FORM OF FIRST NOTE AMENDMENT, EFFECTIVE AS OF DECEMBER 22, 2016 - root9B Holdings, Inc.rtnb_ex419.htm
EX-4.18 - SECOND FORM OF SECURED PROMISSORY NOTE - root9B Holdings, Inc.rtnb_ex418.htm
10-K/A - FORM 10-K/A - root9B Holdings, Inc.rtnb_10ka.htm
  Exhibit 31.2
 
Certification of Principal Executive Officer Pursuant to
Securities Exchange Act Rule 13a-14(a)
As Adopted Pursuant to
Section 302 of the Sarbanes-Oxley Act of 2002
 
I, William L. Hoke, certify that:
 
1.
I have reviewed this annual report on Form 10-K of root9B Holdings, Inc.;
 
2.
Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
 
Date: May 1, 2017
/s/ William L. Hoke
 
William L. Hoke
Chief Financial Officer