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 * Wilson Heidi M   2. Issuer Name and Ticker or Trading Symbol TENNANT CO [TNC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP, General Counsel and Sec'y (Last) (First) (Middle) TENNANT COMPANY, LEGAL DEPT., MD 16, 701 N. LILAC DR. 3. Date of Earliest Transaction (Month/Day/Year) 02/25/2011 (Street) MINNEAPOLIS, MN 55422 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 02/25/2011   A   1,284 (1) A $ 0 9,680.683 (2) D   Common Stock 03/01/2011   M   702 (3) A (3) 10,382.683 D   Common Stock 03/01/2011   F   230 D $ 40.65 10,152.683 D   Common Stock               3,166.6893 I ESOP & Profit Sharing

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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

Stock Option (right to buy)

$ 40.21

02/25/2011

A

6,215

(4)

02/25/2021

Common Stock

6,215

$ 0

6,215

D

Deferred Stock Units - Short-Term Incentive Plan

(3)

03/01/2011

M

702 (3)

(3)

(3)

Common Stock

702 (3)

$ 36.02

0

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Wilson Heidi M TENNANT COMPANY, LEGAL DEPT., MD 16 701 N. LILAC DR. MINNEAPOLIS, MN 55422			VP, General Counsel and Sec'y

Signatures

/s/ Amy M. Jensen on behalf of Heidi M. Wilson		03/01/2011
**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)	Restricted stock grant made pursuant to the 2011 Long-Term Incentive Plan vesting on February 25, 2014.
(2)	This number takes into account the current transaction reported, plus 336.683 shares previously acquired under the dividend reinvestment plan and a previous calculation error of 1 share.
(3)	This is a payout of Short Term Incentive Plan Annual Bonus Deferred Stock Units granted Febraury 29, 2008, and are governed under the 2007 Stock Incentive Plan. Units were granted at a rate of $1.20 for each dollar of bonus earned. The units are converted on a one-for-one basis and are to be settled in 100% Tennant Common Stock. The units themselves (550) vested at the time of the grant; the 20% premium (110 units) vested on March 1, 2011 and dividends were converted into additional Deferred Stock Units (42).
(4)	Options exercisable in one-third increments on each of February 25, 2012, February 25, 2013 and February 25, 2014.

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