Sec Form 4 Filing - McMillan Daniel J. @ STANCORP FINANCIAL GROUP INC - 2015-12-31

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 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 McMillan Daniel J. 2. Issuer Name and Ticker or Trading Symbol STANCORP FINANCIAL GROUP INC [ SFG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) VP Employee Benefits (Last) (First) (Middle) 1100 SW 6TH AVE 3. Date of Earliest Transaction (MM/DD/YY) 12/31/2015 (Street) PORTLAND, OR97204 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12/31/2015 M 3,290 A $ 0 14,472 D common stock 12/31/2015 A 5,922 A $ 0 20,394 D common stock 12/31/2015 M 1,466 A $ 66.19 21,860 D common stock 12/31/2015 M 1,834 A $ 39.58 23,694 D common stock 12/31/2015 M 1,763 A $ 38.56 25,457 D common stock 12/31/2015 F 1,677 D $ 114.14 23,780 D common stock 12/31/2015 F 3,018 D $ 114.14 20,762 D common stock 12/31/2015 F 1,164 D $ 114.14 19,598 D common stock 12/31/2015 F 1,247 D $ 114.14 18,351 D common stock 12/31/2015 F 1,191 D $ 114.14 17,160 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Restricted Stock Unit 021113 $ 0 ( 1 ) 12/31/2015 M 3,290 12/31/2015 12/31/2015 common stock 3,290 $ 0 0 D Stock Option RTB 02232015 ( 2 ) $ 66.19 12/31/2015 M 1,466 12/31/2015 02/23/2025 common stock 8,238 $ 0 6,772 D Stock Option RTB 02132012 ( 3 ) $ 39.58 12/31/2015 M 1,834 12/31/2012 02/13/2022 common stock 7,339 $ 0 0 D Stock Option RTB 02112013 ( 4 ) $ 38.56 12/31/2015 M 1,763 12/31/2013 02/11/2023 common stock 7,054 $ 0 1,764 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other McMillan Daniel J. 1100 SW 6TH AVE PORTLAND, OR97204 VP Employee Benefits Signatures Holley Y. Franklin 01/04/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each Restricted Stock Unit represented a contingent right to receive one share of SFG stock. ( 2 )This option was granted on February 23, 2015 and becomes exercisable in four equal installments on the first four anniversaries of December 31, 2014. ( 3 )This option was granted on February 13, 2012 and became exercisable in four equal installments on the first four anniversaries December 31, 2011. ( 4 )This option was granted on February 11, 2013 and becomes exercisable in four equal installments on the first four anniversaries December 31, 2012.

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