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

OMB APPROVAL OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Baert Bernard   2. Issuer Name and Ticker or Trading Symbol POLYONE CORP [POL] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) SVP, President Europe and Intl (Last) (First) (Middle) POLYONE CENTER, 33587 WALKER ROAD 3. Date of Earliest Transaction (Month/Day/Year) 05/11/2010 (Street) AVON LAKE, OH 44012 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 05/11/2010   M   12,400 A $ 8.94 48,166 D   Common Stock 05/11/2010   D   10,464 D $ 10.595 37,702 D   Common Stock 05/11/2010   M   37,500 A $ 6.51 75,202 D   Common Stock 05/11/2010   D   23,042 D $ 10.595 52,160 D   Common Stock 05/11/2010   M   53,100 A $ 6.585 105,260 D   Common Stock 05/11/2010   D   33,003 D $ 10.595 72,257 D   Common Stock 05/11/2010   M   20,800 A $ 6.765 93,057 D   Common Stock 05/11/2010   D   13,281 D $ 10.595 79,776 D   Common Stock 05/11/2010   M   12,833 A $ 1.43 92,609 D   Common Stock 05/11/2010   D   1,701 D $ 10.79 90,908 D   Common Stock 05/11/2010   S   14,766 D $ 10.7 76,142 D

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

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 Appreciation Right

$ 1.43

05/11/2010

M

12,833

(1)

03/04/2016

Common Stock

12,833

$ 0

25,667

D

Stock Appreciation Right

$ 6.51

05/11/2010

M

37,500

(2)

01/04/2013

Common Stock

37,500

$ 0

0

D

Stock Appreciation Right

$ 6.585

05/11/2010

M

53,100

(3)

03/07/2014

Common Stock

53,100

$ 0

0

D

Stock Appreciation Right

$ 6.765

05/11/2010

M

20,800

(4)

03/05/2015

Common Stock

20,800

$ 0

10,400

D

Stock Appreciation Right

$ 8.94

05/11/2010

M

12,400

(5)

01/05/2012

Common Stock

12,400

$ 0

6,200

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Baert Bernard POLYONE CENTER 33587 WALKER ROAD AVON LAKE, OH 44012			SVP, President Europe and Intl

Signatures

By: Lisa K. Kunkle, Power of Attorney For: Bernard Baert		05/13/2010
**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)	SARs become exercisable and vest one-third on the attainment of 10%, 20% and 30% stock appreciation (which must be maintained for a minimum of three consecutive trading days) from the grant date closing price of $1.43 per share, with no more than one-third vesting per year during the first three years.
(2)	SARs are exercisable upon vesting. Vesting occurs when the market price of the PolyOne common stock reaches pre-determined levels for three consecutive days as follows: 1/3 vests at a market price of $7.50 per share; an additional 1/3 vests at a market price of $8.50 per share; and the remaining 1/3 vests at a market price of $10.00 per share; provided, however, that no vesting will occur sooner than one year from the grant date of January 4, 2006.
(3)	SARs are exercisable upon vesting. Vesting occurs when the market price of the PolyOne common stock reaches pre-determined levels for three consecutive days as follows: 1/3 vests at a market price of $7.24 per share; an additional 1/3 vests at a market price of $7.90 per share; and the remaining 1/3 vests at a market price of $8.56 per share; provided, however, that no vesting will occur sooner than one year from the grant date of March 8, 2007.
(4)	The stock appreciation rights vest in three equal annual installments beginning March 6, 2009.
(5)	SARs are exercisable upon vesting. Vesting occurs when the market price of the PolyOne common stock reaches pre-determined levels for three consecutive days as follows: 1/3 vest at a market price of $9.84 per share; an additional 1/3 vests at a market price of $10.73 per share; and the remaining 1/3 vests at a market price of $11.63 per share.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.