The Securities and Exchange Commission has not necessarily reviewed the information in this filing and has not determined if it is accurate and complete.
The reader should not assume that the information is accurate and complete.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 13F

FORM 13F INFORMATION TABLE
OMB APPROVAL
OMB Number: 3235-0006
Estimated average burden
hours per response: 23.8
COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8
VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY
NAME OF ISSUER TITLE OF CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGER SOLE SHARED NONE
3-D SYS CORP DEL COM NEW 88554D205 2,196 241,300 SH   SOLE   241,300 0 0
58 COM INC SPON ADR REP A 31680Q104 57,579 926,150 SH   SOLE   926,150 0 0
ALICO INC COM 016230104 5,617 185,148 SH   SOLE   185,148 0 0
ALPHABET INC CAP STK CL C 02079K107 198,720 183,845 SH   SOLE   183,845 0 0
ALPHABET INC CAP STK CL A 02079K305 14,558 13,445 SH   SOLE   13,445 0 0
AMERICAN SUPERCONDUCTOR CORP SHS NEW 030111207 4,814 518,745 SH   SOLE   518,745 0 0
ARCBEST CORP COM 03937C105 4,714 167,700 SH   SOLE   167,700 0 0
ARROW ELECTRS INC COM 042735100 53,570 751,650 SH   SOLE   751,650 0 0
ATHENE HLDG LTD CL A G0684D107 91,545 2,125,990 SH   SOLE   2,125,990 0 0
AWARE INC MASS COM 05453N100 82 24,600 SH   SOLE   24,600 0 0
BAIDU INC SPON ADR REP A 056752108 54,489 464,290 SH   SOLE   464,290 0 0
BIOGEN INC COM 09062X103 71,873 307,320 SH   SOLE   307,320 0 0
BOOKING HLDGS INC COM 09857L108 62,004 33,074 SH   SOLE   33,074 0 0
BUILDERS FIRSTSOURCE INC COM 12008R107 12,086 716,859 SH   SOLE   716,859 0 0
CANADIAN NAT RES LTD COM 136385101 45,146 1,670,752 SH   SOLE   1,670,752 0 0
CAPITAL ONE FINL CORP COM 14040H105 51,266 564,980 SH   SOLE   564,980 0 0
CAPSTONE TURBINE CORP COM NEW 14067D409 216 274,742 SH   SOLE   274,742 0 0
CASTLIGHT HEALTH INC CL B 14862Q100 2,272 703,487 SH   SOLE   703,487 0 0
CDW CORP COM 12514G108 53,202 479,300 SH   SOLE   479,300 0 0
CELANESE CORP DEL COM 150870103 370,213 3,434,260 SH   SOLE   3,434,260 0 0
CENTENE CORP DEL COM 15135B101 14,270 272,120 SH   SOLE   272,120 0 0
CIENA CORP COM NEW 171779309 387 9,410 SH   SOLE   9,410 0 0
CIGNA CORP NEW COM 125523100 14,920 94,697 SH   SOLE   94,697 0 0
CITIGROUP GLOBAL MKTS HLDGS VLCTYSHS 3X INV 17325E309 4,503 682,200 SH   SOLE   682,200 0 0
CITIGROUP INC COM NEW 172967424 38,099 544,035 SH   SOLE   544,035 0 0
CREDIT SUISSE NASSAU BRH VLCTYSHS 3X INV 22542D282 4,014 25,200 SH   SOLE   25,200 0 0
CRH PLC ADR 12626K203 16,132 492,590 SH   SOLE   492,590 0 0
CROCS INC COM 227046109 2,074 105,000 SH   SOLE   105,000 0 0
DELTA AIR LINES INC DEL COM NEW 247361702 78,733 1,387,360 SH   SOLE   1,387,360 0 0
EASTMAN CHEMICAL CO COM 277432100 40,125 515,550 SH   SOLE   515,550 0 0
ELECTRONIC ARTS INC COM 285512109 2,361 23,320 SH   SOLE   23,320 0 0
EMCORE CORP COM NEW 290846203 90 27,405 SH   SOLE   27,405 0 0
ENTEGRIS INC COM 29362U104 248,472 6,657,880 SH   SOLE   6,657,880 0 0
FACEBOOK INC CL A 30303M102 29,500 152,850 SH   SOLE   152,850 0 0
GAMESTOP CORP NEW CL A 36467W109 516 94,400 SH   SOLE   94,400 0 0
GRAN TIERRA ENERGY INC COM 38500T101 119,425 76,126,486 SH   SOLE   76,126,486 0 0
HUDBAY MINERALS INC COM 443628102 162,702 29,987,420 SH   SOLE   29,987,420 0 0
IAC INTERACTIVECORP COM 44919P508 12,745 58,590 SH   SOLE   58,590 0 0
IMPINJ INC COM 453204109 17,501 611,500 SH   SOLE   611,500 0 0
INNERWORKINGS INC COM 45773Y105 5,382 1,408,976 SH   SOLE   1,408,976 0 0
INSTALLED BLDG PRODS INC COM 45780R101 29,229 493,572 SH   SOLE   493,572 0 0
INTREXON CORP COM 46122T102 5,167 674,600 SH   SOLE   674,600 0 0
KIMCO RLTY CORP COM 49446R109 8,475 458,600 SH   SOLE   458,600 0 0
LENNAR CORP CL A 526057104 18,742 386,746 SH   SOLE   386,746 0 0
LIBERTY OILFIELD SVCS INC COM CL A 53115L104 42,250 2,611,275 SH   SOLE   2,611,275 0 0
LKQ CORP COM 501889208 50,518 1,898,470 SH   SOLE   1,898,470 0 0
LYON WILLIAM HOMES CL A NEW 552074700 18,163 996,327 SH   SOLE   996,327 0 0
MACROGENICS INC COM 556099109 17,803 1,049,100 SH   SOLE   1,049,100 0 0
MAKEMYTRIP LIMITED MAURITIUS SHS V5633W109 32,019 1,291,106 SH   SOLE   1,291,106 0 0
MCDERMOTT INTL INC COM 580037703 1,612 166,883 SH   SOLE   166,883 0 0
MGM RESORTS INTERNATIONAL COM 552953101 66,848 2,339,800 SH   SOLE   2,339,800 0 0
MILLENDO THERAPEUTICS INC COM 60040X103 618 53,419 SH   SOLE   53,419 0 0
MINERVA NEUROSCIENCES INC COM 603380106 6,711 1,191,987 SH   SOLE   1,191,987 0 0
NATIONAL BEVERAGE CORP COM 635017106 18,423 412,800 SH   SOLE   412,800 0 0
NATURAL GROCERS BY VITAMIN C COM 63888U108 188 18,745 SH   SOLE   18,745 0 0
NOMAD FOODS LTD USD ORD SHS G6564A105 30,241 1,415,796 SH   SOLE   1,415,796 0 0
NORWEGIAN CRUISE LINE HLDG L SHS G66721104 48,342 901,400 SH   SOLE   901,400 0 0
NUANCE COMMUNICATIONS INC COM 67020Y100 12,195 763,630 SH   SOLE   763,630 0 0
OASIS PETE INC NEW COM 674215108 37,846 6,662,990 SH   SOLE   6,662,990 0 0
OBSIDIAN ENERGY LTD COM 674482203 214 180,012 SH   SOLE   180,012 0 0
OPTINOSE INC COM 68404V100 1,480 209,000 SH   SOLE   209,000 0 0
PLANTRONICS INC NEW COM 727493108 970 26,200 SH   SOLE   26,200 0 0
R1 RCM INC COM 749397105 13,986 1,111,800 SH   SOLE   1,111,800 0 0
RED ROBIN GOURMET BURGERS IN COM 75689M101 3,152 103,095 SH   SOLE   103,095 0 0
SAREPTA THERAPEUTICS INC COM 803607100 19,055 125,400 SH   SOLE   125,400 0 0
SEACHANGE INTL INC COM 811699107 55 38,180 SH   SOLE   38,180 0 0
SHOE CARNIVAL INC COM 824889109 6,072 220,000 SH   SOLE   220,000 0 0
ST JOE CO COM 790148100 3,393 196,374 SH   SOLE   196,374 0 0
SUMMIT MATLS INC CL A 86614U100 72,685 3,775,865 SH   SOLE   3,775,865 0 0
TAKEDA PHARMACEUTICAL CO LTD SPONSORED ADS 874060205 34,964 1,975,360 SH   SOLE   1,975,360 0 0
TECK RESOURCES LTD CL B 878742204 98,796 4,284,310 SH   SOLE   4,284,310 0 0
TORONTO DOMINION BK ONT COM NEW 891160509 231 3,960 SH   SOLE   3,960 0 0
TRUEBLUE INC COM 89785X101 46,587 2,111,817 SH   SOLE   2,111,817 0 0
U S CONCRETE INC COM NEW 90333L201 12,158 244,670 SH   SOLE   244,670 0 0
UNDER ARMOUR INC CL C 904311206 13,866 624,598 SH   SOLE   624,598 0 0
UNDER ARMOUR INC CL A 904311107 11,233 443,100 SH   SOLE   443,100 0 0
VIAD CORP COM NEW 92552R406 37,913 572,359 SH   SOLE   572,359 0 0
VMWARE INC CL A COM 928563402 12,365 73,950 SH   SOLE   73,950 0 0
WESTLAKE CHEM CORP COM 960413102 6,460 93,000 SH   SOLE   93,000 0 0
WESTROCK CO COM 96145D105 10,708 293,600 SH   SOLE   293,600 0 0
WHITING PETE CORP NEW COM NEW 966387409 42,588 2,279,895 SH   SOLE   2,279,895 0 0
YIELD10 BIOSCIENCE INC COM NEW 98585K201 33 33,559 SH   SOLE   33,559 0 0
ZIX CORP COM 98974P100 220 24,250 SH   SOLE   24,250 0 0