Granahan Investment Management - OM GROUP INC ownership

OM GROUP INC's ticker is OMG and the CUSIP is 670872100. A total of 145 filers reported holding OM GROUP INC in Q4 2013. The put-call ratio across all filers is 0.00 and the average weighting 0.1%.

Quarter-by-quarter ownership
Granahan Investment Management ownership history of OM GROUP INC
ValueSharesWeighting
Q2 2015$23,813,000
-44.2%
708,722
-50.1%
0.67%
-44.8%
Q1 2015$42,687,000
+0.4%
1,421,462
-0.3%
1.22%
-1.5%
Q4 2014$42,503,000
+14.0%
1,426,289
-0.8%
1.24%
+7.7%
Q3 2014$37,292,000
-20.2%
1,437,073
-0.2%
1.15%
-15.5%
Q2 2014$46,713,000
-3.9%
1,440,429
-1.6%
1.36%
+4.0%
Q1 2014$48,634,000
+44.1%
1,463,988
+57.9%
1.31%
+50.9%
Q4 2013$33,748,000
+38.6%
926,891
+28.5%
0.87%
+34.2%
Q3 2013$24,357,000
+57.3%
721,050
+44.0%
0.65%
+45.1%
Q2 2013$15,482,000500,7000.45%
Other shareholders
OM GROUP INC shareholders Q4 2013
NameSharesValueWeighting ↓
SIGNIA CAPITAL MANAGEMENT LLC 258,349$9,407,0003.50%
Cohen Capital Management, Inc. 127,580$4,645,0001.31%
INVESTMENT COUNSELORS OF MARYLAND LLC 707,950$25,776,0001.05%
Granahan Investment Management 926,891$33,748,0000.87%
ALGERT GLOBAL LLC 74,640$2,718,0000.73%
Pinnacle Holdings, LLC 28,679$1,044,202,0000.30%
ROTHSCHILD & CO ASSET MANAGEMENT US INC. 371,042$13,510,0000.30%
SECOR Capital Advisors, LP 19,019$692,0000.28%
FIRSTMERIT BANK N A TRUSTEE 73,812$2,687,0000.24%
CRAMER ROSENTHAL MCGLYNN LLC 715,972$26,069,0000.19%
View complete list of OM GROUP INC shareholders