BLIN Bridgeline Digital Inc

FORM 4 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES                                                                                   
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Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940                       

1. Name and Address of Reporting Person * TAGLICH MICHAEL N	2. Issuer Name and Ticker or Trading Symbol Bridgeline Digital, Inc. [ BLIN ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director                    _____ 10% Owner _____ Officer (give title below)    _____ Other (specify below)
(Last)          (First)          (Middle) 100 SYLVAN RD. SUITE G-700	3. Date of Earliest Transaction (MM/DD/YYYY) 12/21/2021
(Street) WOBURN, MA 01801 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/21/2021		X		2379	A	$3.875	90312 (1)(2)	D
Common Stock								35 (3)	I	By spouse

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Common Stock Warrants (right to buy)	$3.875	12/21/2021		X			2379	2/8/2021	2/4/2026	Common Stock	2379	$0	0	D

Explanation of Responses:
(1)	For the purposes of this Form 4, the number of shares of common stock of Bridgeline Digital, Inc (the "Company") beneficially owned by the Reporting Person is the number of shares in Table 1 Column 4 (2,379) plus 87,933 shares of common stock beneficially owned by the Reporting Person prior to this reported transaction calculated as follows: (x) 360,229 shares (representing the total beneficial ownership of the Reporting Person reflected in the beneficial ownership table included in the Company's Form 10-K, filed with the commission on December 20, 2021) minus (y)(i) 195,662 shares of common stock underlying currently exercisable warrants; (ii) 37,708 shares of common stock underlying currently exercisable options; (iii) 2 shares of common stock underlying currently exercisable warrants owned by the Reporting Person's spouse (the ownership of which the Reporting Person disclaims);
(2)	(iv) 35 shares of common stock owned by the Reporting Person's spouse (the ownership of which the Reporting Person disclaims); and (v) 38,889 shares of common stock issuable upon the conversion of the Company's Series C Preferred Stock.
(3)	The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of the securities for the purpose of Section 16 or for any other purpose.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
TAGLICH MICHAEL N 100 SYLVAN RD. SUITE G-700 WOBURN, MA 01801	X

Signatures
/s/ Michael N. Taglich		12/23/2021
**Signature of Reporting Person		Date