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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(Print or Type Responses)

1. Name and Address of Reporting Person * Chardon Marc   2. Issuer Name and Ticker or Trading Symbol BLACKBAUD INC [BLKB] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President and CEO (Last) (First) (Middle) 2000 DANIEL ISLAND DRIVE 3. Date of Earliest Transaction (Month/Day/Year) 03/15/2007 (Street) CHARLESTON, SC 29492 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 03/15/2007   P   22.578 (1) A $ 22.44 94,159.578 D   Common Stock 06/15/2007   P   48.227 (2) A $ 21.94 94,207.805 D   Common Stock 09/14/2007   P   40.671 (3) A $ 26.11 94,248.476 D   Common Stock 12/14/2007   P   38.334 (4) A $ 27.79 94,286.81 D   Common Stock 03/14/2008   P   26.19 (5) A $ 24.29 94,313 D   Common Stock 08/06/2009   S   8,598 D $ 19.55 85,715 D   Common Stock 12/01/2008   F   3,795 (6) D $ 12.42 81,920 D   Common Stock 04/21/2010   M   4,760 A $ 16.1 86,680 D   Common Stock 04/21/2010   S(7)   4,760 D $ 26.93 81,920 D   Common Stock               4,000 I By spouse

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

Employee Stock Option (Right to Buy)

$ 16.1

04/21/2010

M

4,760

(8)

11/28/2010

Common Stock

549,156

$ 0

544,396

D

Stock Appreciation Right

$ 26.17

(9)

02/13/2015

Common Stock

55,380

55,380

D

Stock Appreciation Right

$ 12.4

(10)

11/08/2015

Common Stock

19,000

19,000

D

Stock Appreciation Right

$ 22.34

(11)

11/11/2016

Common Stock

65,299

65,299

D

Stock Appreciation Right

$ 21.44

(12)

02/10/2020

Common Stock

100,000

100,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Chardon Marc 2000 DANIEL ISLAND DRIVE CHARLESTON, SC 29492	X		President and CEO

Signatures

/s/ Marc Chardon		04/23/2010
**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)	These shares of common stock were purchased as a reinvestment of cash dividends. The purchase was matchable under Section 16(b) of the Securities Exchange Act of 1934 with Mr. Chardon's sale of 1,000 shares of common stock at $26.22 per share on November 30, 2006. Upon discovery of this inadvertent short-swing profit, Mr. Chardon has paid the Company $100.88, representing the full amount of the profit realized in connection with the short-swing transaction plus interest.
(2)	These shares of common stock were purchased as a reinvestment of cash dividends. The purchase was matchable under Section 16(b) of the Securities Exchange Act of 1934 with Mr. Chardon's sale of 100,000 shares of common stock at $27.9785 per share on November 13, 2007. Upon discovery of this inadvertent short-swing profit, Mr. Chardon has paid the Company $328.14, representing the full amount of the profit realized in connection with the short-swing transaction plus interest.
(3)	These shares of common stock were purchased as a reinvestment of cash dividends. The purchase was matchable under Section 16(b) of the Securities Exchange Act of 1934 with Mr. Chardon's sale of 100,000 shares of common stock at $27.9785 per share on November 13, 2007. Upon discovery of this inadvertent short-swing profit, Mr. Chardon has paid the Company $85.62, representing the full amount of the profit realized in connection with the short-swing transaction plus interest.
(4)	These shares of common stock were purchased as a reinvestment of cash dividends. The purchase was matchable under Section 16(b) of the Securities Exchange Act of 1934 with Mr. Chardon's sale of 100,000 shares of common stock at $27.9785 per share on November 13, 2007. Upon discovery of this inadvertent short-swing profit, Mr. Chardon has paid the Company $8.15, representing the full amount of the profit realized in connection with the short-swing transaction plus interest.
(5)	These shares of common stock were purchased as a reinvestment of cash dividends. The purchase was matchable under Section 16(b) of the Securities Exchange Act of 1934 with Mr. Chardon's sale of 100,000 shares of common stock at a price of $27.9785 per share on November 13, 2007. Upon discovery of this inadvertent short-swing profit, Mr. Chardon has paid the Company $108.85, representing the full amount of the profit realized in connection with the short-swing transaction.
(6)	Represents shares forfeited to the Company in connection with the satisfaction of tax liabilities incurred upon the vesting of restricted stock.
(7)	This sale was effected pursuant to a 10b5-1 trading plan adopted by the reporting person on February 24, 2010 and effective on March 1, 2010.
(8)	The option vested 1/4 on November 28, 2006 and 1/12 every three months thereafter.
(9)	Represents a stock appreciation right which vests in four equal annual installments beginning on February 12, 2009, subject to continued employment, and shall be settled in stock at time of exercise.
(10)	Represents a stock appreciation right which vests in four equal annual installments beginning on November 7, 2009, subject to continued employment, and shall be settled in stock at time of exercise.
(11)	Represents a stock appreciation right which vests in four equal annual installments beginning on November 10, 2010, subject to continued employment, and shall be settled in stock at time of exercise.
(12)	Represents a stock appreciation right which will vest 100% on November 10, 2010, subject to continued employment, and shall be settled in stock at time of exercise.

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