AMPCO-PITTSBURGH CORP

Institution	Shares	Value ($000)
EAM Investors, LLC	148,395	$791
MARSHALL WACE, LLP	208,342	$1,110
SEI INVESTMENTS CO	90,334	$481
SUSQUEHANNA INTERNATIONAL GROUP, LLP	41,564	$222
HUB Investment Partners, LLC	10,300	$55
JANE STREET GROUP, LLC	25,369	$135
Belvedere Trading LLC	10,287	$55
Farther Finance Advisors, LLC	300	$2
JONES FINANCIAL COMPANIES LLLP	75	$0
ALGERT GLOBAL LLC	12,570	$0
HRT FINANCIAL LP	14,580	$0

Increased Positions (10)

Teton Advisors, LLC

Value ($000) $693 (+178.9%) Shares 130,000 (+19.8%)

GAMCO INVESTORS, INC. ET AL

Value ($000) $13,170 (+141.2%) Shares 2,470,828 (+3.6%)

GABELLI FUNDS LLC

Value ($000) $7,485 (+136.7%) Shares 1,404,300 (+1.7%)

GROUP ONE TRADING, L.P.

Value ($000) $55 (+11863.3%) Shares 10,280 (+5040.0%)

NORTHERN TRUST CORP

Value ($000) $151 (+215.0%) Shares 28,419 (+35.3%)

STATE STREET CORP

Value ($000) $427 (+151.3%) Shares 80,116 (+7.9%)

SIMPLEX TRADING, LLC

Value ($000) $40 (+504450.0%) Shares 7,573 (+96.8%)

NewEdge Advisors, LLC

Value ($000) $10 (+298.0%) Shares 1,849 (+71.0%)

MORGAN STANLEY

Value ($000) $37 (+156.1%) Shares 6,871 (+10.1%)

ACADIAN ASSET MANAGEMENT LLC

Value ($000) $0 (+169.8%) Shares 65,515 (+15.0%)

Institution	Prev Shares	Curr Shares	Change
Teton Advisors, LLC	108,500	130,000	+21,500 (+19.8%)
GAMCO INVESTORS, INC. ET AL	2,384,210	2,470,828	+86,618 (+3.6%)
GABELLI FUNDS LLC	1,380,800	1,404,300	+23,500 (+1.7%)
GROUP ONE TRADING, L.P.	200	10,280	+10,080 (+5040.0%)
NORTHERN TRUST CORP	20,998	28,419	+7,421 (+35.3%)
STATE STREET CORP	74,216	80,116	+5,900 (+7.9%)
SIMPLEX TRADING, LLC	3,848	7,573	+3,725 (+96.8%)
NewEdge Advisors, LLC	1,081	1,849	+768 (+71.0%)
MORGAN STANLEY	6,243	6,871	+628 (+10.1%)
ACADIAN ASSET MANAGEMENT LLC	56,991	65,515	+8,524 (+15.0%)

Decreased Positions (8)

Ancora Advisors LLC

Value ($000) $1,887 (-13.4%) Shares 354,100 (-62.8%)

RBF Capital, LLC

Value ($000) $320 (+53.5%) Shares 60,000 (-34.0%)

BRIDGEWAY CAPITAL MANAGEMENT, LLC

Value ($000) $573 (+96.3%) Shares 107,535 (-15.7%)

RENAISSANCE TECHNOLOGIES LLC

Value ($000) $2,459 (+123.4%) Shares 461,302 (-4.0%)

CITADEL ADVISORS LLC

Value ($000) $74 (+2.9%) Shares 13,874 (-55.8%)

VANGUARD GROUP INC

Value ($000) $3,489 (+128.2%) Shares 654,635 (-2.0%)

GOLDMAN SACHS GROUP INC

Value ($000) $151 (+106.5%) Shares 28,251 (-11.3%)

BlackRock, Inc.

Value ($000) $893 (+130.4%) Shares 167,509 (-1.0%)

Institution	Prev Shares	Curr Shares	Change
Ancora Advisors LLC	951,318	354,100	-597,218 (-62.8%)
RBF Capital, LLC	90,950	60,000	-30,950 (-34.0%)
BRIDGEWAY CAPITAL MANAGEMENT, LLC	127,535	107,535	-20,000 (-15.7%)
RENAISSANCE TECHNOLOGIES LLC	480,619	461,302	-19,317 (-4.0%)
CITADEL ADVISORS LLC	31,396	13,874	-17,522 (-55.8%)
VANGUARD GROUP INC	667,704	654,635	-13,069 (-2.0%)
GOLDMAN SACHS GROUP INC	31,848	28,251	-3,597 (-11.3%)
BlackRock, Inc.	169,238	167,509	-1,729 (-1.0%)

Exited Positions (4)

WEALTH ENHANCEMENT ADVISORY SERVICES, LLC

Value ($000) $24 Shares 10,573

Tower Research Capital LLC (TRC)

Value ($000) $3 Shares 1,485

JPMORGAN CHASE & CO

Value ($000) $0 Shares 28

SALEM INVESTMENT COUNSELORS INC

Value ($000) $0 Shares 25

Institution	Prev Shares	Prev Value ($000)
WEALTH ENHANCEMENT ADVISORY SERVICES, LLC	10,573	$24
Tower Research Capital LLC (TRC)	1,485	$3
JPMORGAN CHASE & CO	28	$0
SALEM INVESTMENT COUNSELORS INC	25	$0