Stock trading by Dimensional Fund Advisors Inc of Gerdau Sa (GGB)

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Filed As-Of/On Form FullName
Symbol Country Industry Shares
Activity Shares Change Shares Change Pct. Hypothetical Old Value
Hypothetical New Value Hypothetical Value Change Hypothetical Return Hypothetical Results

Director Ten Pct Other Officer
Officer Title History

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Stock Trading: Entire History Of Holdings/Transactions

Filed As-Of/On Form Fullname Symbol Country Industry Shares Activity Shares Change Shares Pct. Change Hypothetical Old Value Hypothetical New Value Hypothetical Value Chg. Hypothetical Return Hypothetical Results Director Other Ten Pct Officer Officer Title History

2010-02-10 2009-12-31 13F-HR Gerdau Sa GGB BR Steel-Producers 10,200,161 Added More 828,404 8.83 % $137,600,172 $155,552,455 $17,952,283 13.04 % $1,457,991 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2009-10-29 2009-09-30 13F-HR Gerdau Sa GGB BR Steel-Producers 9,371,757 Added More 321,513 3.55 % $148,261,196 $142,919,294 $-5,341,901 -3.60 % $-183,262 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2009-08-10 2009-06-30 13F-HR Gerdau Sa GGB BR Steel-Producers 9,050,244 Added More 1,692,157 22.99 % $107,878,908 $138,016,221 $30,137,313 27.93 % $5,634,883 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2009-05-08 2009-03-31 13F-HR Gerdau Sa GGB BR Steel-Producers 7,358,087 Added More 2,182,098 42.15 % $65,045,489 $112,210,827 $47,165,338 72.51 % $13,987,248 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2009-02-06 2008-12-31 13F-HR Gerdau Sa GGB BR Steel-Producers 5,175,989 Added More 533,977 11.50 % $40,165,675 $78,933,832 $38,768,158 96.52 % $3,999,488 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2008-10-30 2008-09-30 13F-HR Gerdau Sa GGB BR Steel-Producers 4,642,012 Added More 23,100 0.50 % $32,076,303 $70,790,683 $38,714,380 120.69 % $192,654 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2008-08-01 2008-06-30 13F-HR Gerdau Sa GGB BR Steel-Producers 4,618,912 Added More 2,062,631 80.68 % $97,320,476 $70,438,408 $-26,882,068 -27.62 % $-12,004,512 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2008-05-05 2008-03-31 13F-HR Gerdau Sa GGB BR Steel-Producers 2,556,281 Added More 2,544,191 21043.76 % $107,542,742 $38,983,285 $-68,559,456 -63.75 % $-68,235,203 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2008-01-31 2007-12-31 13F-HR Gerdau Sa GGB BR Steel-Producers 12,090 Sold Some -450 -3.58 % $314,098 $184,373 $-129,726 -41.30 % $4,829 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2007-10-25 2007-09-30 13F-HR Gerdau Sa GGB BR Steel-Producers 12,540 Added More 265 2.15 % $365,541 $191,235 $-174,306 -47.68 % $-3,684 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2007-08-23 2007-06-30 13F-HR/A Gerdau Sa GGB BR Steel-Producers 12,275 Sold Some -1,900 -13.40 % $277,292 $187,194 $-90,099 -32.49 % $13,946 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2007-04-19 2007-03-31 13F-HR Gerdau Sa GGB BR Steel-Producers 14,175 Added More 4,115 40.90 % $286,335 $216,169 $-70,166 -24.50 % $-20,369 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2007-01-29 2006-12-29 13F-HR Gerdau Sa GGB BR Steel-Producers 10,060 Sold Some -300 -2.89 % $164,280 $153,415 $-10,865 -6.61 % $324 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2006-12-15 2006-09-30 13F-HR/A Gerdau Sa GGB BR Steel-Producers 10,360 No Change 0 0 % $167,625 $157,990 $-9,635 -5.74 % $0 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

2006-08-01 2006-06-30 13F-HR/A Gerdau Sa GGB BR Steel-Producers 10,360 New Holding 10,360 100 % $158,301 $157,990 $-311 -0.19 % $-311 History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa

Returned 15 Transactions!

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Filed	As-Of/On	Form	Fullname	Symbol	Country	Industry	Shares	Activity	Shares Change	Shares Pct. Change	Hypothetical Old Value	Hypothetical New Value	Hypothetical Value Chg.	Hypothetical Return	Hypothetical Results	History
2010-02-10	2009-12-31	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	10,200,161	Added More	828,404	8.83 %	$137,600,172	$155,552,455	$17,952,283	13.04 %	$1,457,991	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2009-10-29	2009-09-30	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	9,371,757	Added More	321,513	3.55 %	$148,261,196	$142,919,294	$-5,341,901	-3.60 %	$-183,262	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2009-08-10	2009-06-30	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	9,050,244	Added More	1,692,157	22.99 %	$107,878,908	$138,016,221	$30,137,313	27.93 %	$5,634,883	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2009-05-08	2009-03-31	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	7,358,087	Added More	2,182,098	42.15 %	$65,045,489	$112,210,827	$47,165,338	72.51 %	$13,987,248	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2009-02-06	2008-12-31	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	5,175,989	Added More	533,977	11.50 %	$40,165,675	$78,933,832	$38,768,158	96.52 %	$3,999,488	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2008-10-30	2008-09-30	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	4,642,012	Added More	23,100	0.50 %	$32,076,303	$70,790,683	$38,714,380	120.69 %	$192,654	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2008-08-01	2008-06-30	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	4,618,912	Added More	2,062,631	80.68 %	$97,320,476	$70,438,408	$-26,882,068	-27.62 %	$-12,004,512	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2008-05-05	2008-03-31	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	2,556,281	Added More	2,544,191	21043.76 %	$107,542,742	$38,983,285	$-68,559,456	-63.75 %	$-68,235,203	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2008-01-31	2007-12-31	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	12,090	Sold Some	-450	-3.58 %	$314,098	$184,373	$-129,726	-41.30 %	$4,829	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2007-10-25	2007-09-30	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	12,540	Added More	265	2.15 %	$365,541	$191,235	$-174,306	-47.68 %	$-3,684	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2007-08-23	2007-06-30	13F-HR/A	Gerdau Sa	GGB	BR	Steel-Producers	12,275	Sold Some	-1,900	-13.40 %	$277,292	$187,194	$-90,099	-32.49 %	$13,946	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2007-04-19	2007-03-31	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	14,175	Added More	4,115	40.90 %	$286,335	$216,169	$-70,166	-24.50 %	$-20,369	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2007-01-29	2006-12-29	13F-HR	Gerdau Sa	GGB	BR	Steel-Producers	10,060	Sold Some	-300	-2.89 %	$164,280	$153,415	$-10,865	-6.61 %	$324	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2006-12-15	2006-09-30	13F-HR/A	Gerdau Sa	GGB	BR	Steel-Producers	10,360	No Change	0	0 %	$167,625	$157,990	$-9,635	-5.74 %	$0	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa
2006-08-01	2006-06-30	13F-HR/A	Gerdau Sa	GGB	BR	Steel-Producers	10,360	New Holding	10,360	100 %	$158,301	$157,990	$-311	-0.19 %	$-311	History of Dimensional Fund Advisors Inc Ownership Of Gerdau Sa