MOBI Sky-Mobi Limited ADS (MM)

		Level 1				Level 2				Level 3				Total
Preferred stocks		$	1,210,813			$	107,500			$	-			$	1,318,313
Convertible preferred stock			923,825				-				-				923,825
Common stocks			192,120,952				-				-				192,120,952
Asset backed securities			-				3,528,748				-				3,528,748
Collateralized mortgage obligations			-				11,376,591				-				11,376,591
Corporate bonds			-				64,887,440				-				64,887,440
U.S. government and agency obligations			-				17,401,310				-				17,401,310
Foreign government bond			-				413,411				-				413,411
Municipal bonds			-				4,023,848				-				4,023,848
Senior Floating Rate Loan Interests			-				1,851,482				-				1,851,482
Total		$	194,255,590			$	103,590,330			$	-			$	297,845,920

ITEM 2. CONTROLS AND PROCEDURES. (a) Disclose the conclusions of the registrant's principal executive and principal financial officers, or persons performing similar functions, regarding the effectiveness of the registrant's disclosure controls and procedures (as defined in Rule 30a-3(c) under the Act (17 CFR 270.30a-3(c))) as of a date within 90 days of the filing date of the report that includes the disclosure required by this paragraph, based on the evaluation of these controls and procedures required by Rule 30a-3(b) under the Act (17 CFR 270.30a-3(b))) and Rule 13a-15(b) or 15d-15(b) under the Exchange Act (17 CFR 240.13a-15(b) or 240.15d-15(b)). The registrant's principal executive officer and principal financial officer have concluded that the registrant's disclosure controls and procedures are effective based on their evaluation of these controls and procedures as of a date within 90 days of the filing date of this report. (b) Disclose any change in the registrant's internal controls over financial reporting (as defined in Rule 30a-3(d) under the Act (17 CFR 270.30a-3(d)) that occurred during the registrant's last fiscal quarter that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting. There were no significant changes in the registrant's internal control over financial reporting that occurred during the second fiscal quarter of the period covered by this report that have materially affected, or are reasonably likely to materially affect, the registrant's internal control over financial reporting. ITEM 3. EXHIBITS. (a) A separate certification for each principal executive officer and principal financial officer of the registrant as required by Rule 30a-2(a) under the Act (17 CFR 270.30a-2(a)). Filed herewith. <PAGE> SIGNATURES [See General Instruction F] Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. (Registrant) Pioneer Series Trust IV By (Signature and Title)* /s/ John F. Cogan, Jr. John F. Cogan, Jr, President Date June 27, 2013 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. By (Signature and Title)* /s/ John F. Cogan, Jr. John F. Cogan, Jr., President Date June 27, 2013 By (Signature and Title)* /s/ Mark Bradley Mark Bradley, Treasurer Date June 27, 2013 * Print the name and title of each signing officer under his or her signature.