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 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person * LARKIN BRIAN   2. Issuer Name and Ticker or Trading Symbol DYNATRONICS CORP [DYNT] 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) 526 E. EVERGREEN AVE. 3. Date of Earliest Transaction (Month/Day/Year) 10/05/2016 (Street) WYNDMOOR, PA 19038 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 10/05/2016   P   885 A (1) 9,687 D   Common Stock 01/03/2017   P   939 A (1) 10,626 D   Restricted Common Stock (2) 01/15/2017   P   2,944 A (3) 2,944 D   Common Stock 01/15/2017   P   2,945 A (3) 13,571 D   Common Stock 04/04/2017   P   782 A (1) 17,297 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction 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 (Month/Day/Year)

7. Title and Amount of Underlying Securities (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

Series A Preferred Stock

$ 2.5

06/30/2015

P

40,000

06/30/2015

(4)

Common Stock

40,000

$ 2.5

40,000

D

A-Warrants

$ 2.75

06/15/2015

P

30,000

06/30/2015

06/30/2021

Common Stock

30,000

$ 2.75

30,000

D

B-Warrants

$ 2.75

06/15/2015

P

30,000

(5)

(5)

Common Stock

30,000

$ 2.75

30,000

D

Series B Preferred Stock

$ 2.5

12/28/2016

P

8,000

12/28/2016

(6)

Common Stock

8,000

$ 2.5

8,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
LARKIN BRIAN 526 E. EVERGREEN AVE. WYNDMOOR, PA 19038	X

Signatures

Brian M. Larkin		04/26/2017
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Payment of quarterly dividends on 8% Series A Preferred Stock in shares of common stock valued at 90% of 10-day average closing bid price.
(2)	Shares subject to forfeiture if service as a director terminates before July 15, 2017.
(3)	Shares issued as compensation for services as a director of the Issuer, valued at $2.55 per share.
(4)	The Series A Convertible Preferred Stock has no expiration date.
(5)	The B-Warrants are exercisable any time after the date that the holder has purchased all of the shares of Common Stock underlying the A-Warrants issued to the holder and on or prior to the close of business on the six-year anniversary of such date.
(6)	The Series B Convertible Preferred Stock has no expiration date.

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