2020-11-16T11:07:51-06:00 2019-12-31 331197384 ANDERSEN TAX LLC 125 HIGH STREET BOSTON MA 02110 990PF 2019-01-01 263403705 SAMANTHA BECKY MARK FOUNDATION SAMA 6172928400 16 BOARDMAN AVENUE MANCHESTER MA 01944 BECKY LEVIN TRUSTEE 6172928400 2020-11-05 1 SUSAN M DELGADO P01052054 6172928400 2020-11-05 65.96.173.173 2020-11-05 14:23:24 ES P DA39A3EE5E6B4B0D3255BFEF95601890AFD80709 501078A409CA748B07281DDC444D1AE59184E4E2 2019 2021-04-22 16:20:28Z X 14846122 X 55011 22101 22101 280705 280705 899330 9771248 2063977 11860 2037 1269007 2368820 0 0 0 31850 0 0 146550 146550 0 15743 3243 500 1510 0 0 195653 149793 500 5568000 5568000 5763653 149793 5568500 -4494646 2219027 6167 3525 3525 748009 1611615 1611615 1771637 1348753 1381863 6517162 3360115 4848255 8067184 6291505 7000864 17110159 12615513 14846122 0 0 X 0 0 0 0 17110159 12615513 17110159 12615513 17110159 12615513 17110159 -4494646 0 12615513 0 12615513 PUBLICLY TRADED SECURITIES P 8398309 7592243 806066 806066 31,300 SHARES OF MYOKARDIA, INC. D 1347034 115028 1232006 1232006 279 SHARES OF ENANTA PHARMACEUTICALS D 23049 23049 23049 CAPITAL GAINS DISTRIBUTIONS P 2856 2856 2856 2063977 0 3717362 19463301 0.190993 3527789 15315641 0.230339 2687349 14376039 0.186933 1962918 11024922 0.178044 1352235 9302757 0.145359 0.931668 0.186334 16364360 3049237 22190 3071427 5568500 X 22190 0 22190 0 22190 34213 0 0 34213 X 0 12023 12023 0 0 0 0 0 0 0 0 0 0 0 1 1 MA 1 0 1 0 0 1 N/A ANDREW KYRIACOU 6172928400 125 HIGH STREET 16TH FLOOR BOSTON MA 02110 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 MARK J LEVIN C/O THIRD ROCK VENT 29 NEWBURY ST BOSTON MA 02116 TRUSTEE 2.00 0 0 0 BECKY RUHMANN LEVIN C/O THIRD ROCK VENT 29 NEWBURY ST BOSTON MA 02116 TRUSTEE 2.00 0 0 0 NONE 0 GOLDMAN SACHS 125 HIGH STREET 1700 BOSTON MA 02110 INVESTMENT SERVICES 146550 DONNA FORLIZZI 55 TOPSFIELD ROAD BOXFORD MA 01921 ACCOUNTING 20000 ANDERSEN TAX LLC 125 HIGH STREET 16TH FLOOR BOSTON MA 02110 TAX PREPARATION 11850 0 NONE 0 0 15875559 738004 0 16613563 0 0 16613563 249203 16364360 818218 818218 22190 22190 796028 0 796028 0 796028 5568500 0 5568500 22190 5546310 796028 0 0 913627 1583336 1981849 2915679 2792473 10186964 5568500 0 0 0 796028 4772472 0 0 14959436 0 0 0 0 0 0 913627 14045809 1583336 1981849 2915679 2792473 4772472 MARK J LEVIN BECKY RUHMANN LEVIN X THE POSSIBLE PROJECT 16 BOARDMAN AVENUE MANCHESTER MA 01944 RELATED PARTY 501(C)(3) GENERAL 5400000 LIFE SCIENCE CARES PO BOX 425486 CAMBRIDGE MA 02142 N/A 501(C)(3) GENERAL 5500 SLING HEALTH 4240 DUNCAN AVE STE 200 ST LOUIS MO 63110 N/A 501(C)(3) GENERAL 5000 EPIPHANY SCHOOL 154 CENTRE STREET DORCHESTER MA 02124 N/A 501(C)(3) GENERAL 25000 LIFE SCIENCE CARES PO BOX 425486 CAMBRIDGE MA 02142 N/A 501(C)(3) GENERAL 5000 GREEN LIGHT FUND 200 CLARENDON STREET 9TH FLOOR BOSTON MA 02116 N/A 501(C)(3) GENERAL 52500 ZAMNI BENI ORPHANAGE 6201 RIVERA DRIVE CORAL GABELS FL 33134 N/A 501(C)(3) GENERAL 75000 5568000 0 14 22101 14 280705 14 11860 14 899330 0 1213996 0 1213996 0 0 0 0 0 0 0 0 0 0 X X 1 MARK LEVIN 16 BOARDMAN AVENUE MANCHESTER MA 01944 31850 X 2 MARK LEVIN 16 BOARDMAN AVENUE MANCHESTER MA 01944 23161 X 2 279 SHARES OF ENANTA PHARMACEUTICALS 23161 2019-07-22 ACCOUNTING FEES 20000 0 0 TAX PREPARATION 11850 0 0 GOLDMAN SACHS - 59658 1401467 1966517 GOLDMAN SACHS - 50253 586670 749672 GOLDMAN SACHS - 70410 1371978 2132066 1348753 1381863 0 0 GOLDMAN SACHS - 59664 (INDEX FUNDS) AT COST 935879 4948477 GOLDMAN SACHS - 59664 (MISCELLANEOUS INVESTMENTS) AT COST 4367495 825239 FIRST REPUBLIC - 37922 (MUTUAL FUNDS) AT COST 466710 595889 GOLDMAN SACHS - 70215 (ALTERNATIVE INVESTMENTS) AT COST 388726 400472 GOLDMAN SACHS - 70215 (HEDGE FUNDS + PRIVATE EQUITY) AT COST 132695 230787 MISC ADMINISTRATION 1510 0 0 FROM K-1 - GUARANTEED PAYMENT 2037 2037 2037 NON-DIVIDEND DISTRIBUTIONS 9823 0 9823 INVESTMENT FEES 146550 146550 0 MARK LEVIN 16 BOARDMAN AVENUE MANCHESTER MA 01944 FOREIGN TAXES PAID 3243 3243 0 MA FILING FEE 500 0 500 FEDERAL 990-PF 12000 0 0