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Penumbra

Name Holding Trade Value Shares
Change
Change in
Stake
1832 Asset Management
201
1832 Asset Management
Ontario, Canada
-$46.7M -346,500 Closed
MWNA
202
Marshall Wace North America
New York
-$26.8M -193,910 Closed
PP
203
Paloma Partners
Connecticut
-$12.5M -90,499 Closed
Voloridge Investment Management
204
Voloridge Investment Management
Florida
-$5.01M -36,289 Closed
EGM
205
Engineers Gate Manager
New York
-$4.71M -34,077 Closed
ARTA
206
A.R.T. Advisors
New York
-$3.59M -26,000 Closed
CM
207
Castleark Management
Illinois
-$3.58M -25,890 Closed
SCM
208
Stevens Capital Management
Pennsylvania
-$3.32M -24,064 Closed
ACM
209
Atika Capital Management
New York
-$3.11M -22,500 Closed
EI
210
EAM Investors
California
-$2.85M -20,612 Closed
EMG
211
ETF Managers Group
New Jersey
-$1.5M -16,602 Closed
DBG
212
De Burlo Group
Massachusetts
-$2.29M -16,600 Closed
Arrowstreet Capital
213
Arrowstreet Capital
Massachusetts
-$1.8M -13,000 Closed
Allianz Asset Management
214
Allianz Asset Management
Germany
-$1.75M -12,633 Closed
SEC
215
Seven Eight Capital
New York
-$1.48M -10,700 Closed
AR
216
Advisory Research
Illinois
-$1.46M -10,570 Closed
CCS
217
Crosspoint Capital Strategies
California
-$1.32M -9,563 Closed
Verition Fund Management
218
Verition Fund Management
Connecticut
-$1.27M -9,232 Closed
Wolverine Trading
219
Wolverine Trading
Illinois
-$1.16M -8,262 Closed
IR
220
Invictus RG
Bermuda
-$501K -3,624 Closed
TI
221
Trexquant Investment
Connecticut
-$416K -3,012 Closed
II
222
Ibex Investors
Colorado
-$369K -2,664 Closed
GCA
223
Gideon Capital Advisors
New York
-$348K -2,519 Closed
CMBA
224
C.M. Bidwell & Associates
Hawaii
-$289K -2,095 Closed
AIM
225
Assured Investment Management
New York
-$267K -1,934 Closed