Ownership Submission
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 *
Bender Ulf
   2. Issuer Name and Ticker or Trading Symbol
ACETO CORP [ACET] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Managing Director
(Last)
(First)
(Middle)
ONE HOLLOW LANE, SUITE 201		 3. Date of Earliest Transaction (Month/Day/Year)
06/25/2010
(Street)

LAKE SUCCESS, NY 11042		 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

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
Restricted Stock Units (1) 06/25/2010   A   11     (1)   (1) Common Stock 11 $ 0 733 D  
Restricted Stock Units (2) 06/25/2010   A   22     (2)   (2) Common Stock 22 $ 0 1,414 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Bender Ulf
ONE HOLLOW LANE
SUITE 201
LAKE SUCCESS, NY 11042		       Managing Director  

Signatures

 /s/ Ulf Bender   06/29/2010
**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) Dividend equivalents accrued as a result of a cash dividend paid on June 25, 2010. 2,000 Restricted Stock Units ("RSU's") were granted on December 6, 2007 and vest one-third each year beginning on December 6, 2008. Each RSU represents the contingent right to receive one share of common stock upon vesting. Each RSU also accrues dividend equivalents on each date that Aceto pays a cash dividend to holders of common stock generally. RSU's attributable to such dividend equivalents are subject to the same terms and conditions as the RSU's to which such dividend equivalents relate.
(2) Dividend equivalents accrued as a result of a cash dividend paid on June 25, 2010. 2,000 Restricted Stock Units ("RSU's") were granted on December 4, 2008 and vest one-third each year beginning on December 6, 2009. Each RSU represents the contingent right to receive one share of common stock upon vesting. Each RSU also accrues dividend equivalents on each date that Aceto pays a cash dividend to holders of common stock generally. RSU's attributable to such dividend equivalents are subject to the same terms and conditions as the RSU's to which such dividend equivalents relate.

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