I thought I might post the institions adding the most shares to their position.
Owner Name Date Shared Held Change (Shares) Change (%) Value (in 1,000s)
PRICE T ROWE ASSOCIATES INC /MD/ 12/31/2014 5,989,943 2,238,236 59.66 1,220,571
J&P(CHINA)CAPITAL MANAGEMENT CO.,LTD 12/31/2014 1,854,855 1,854,855 New 377,964
GOLDMAN SACHS GROUP INC 12/31/2014 2,655,083 1,633,033 159.78 541,026
WINSLOW CAPITAL MANAGEMENT, LLC 12/31/2014 1,190,052 1,190,050 59,502,500 242,497
CAPITAL WORLD INVESTORS 12/31/2014 2,529,200 1,065,000 72.74 515,375
DEUTSCHE BANK AG\ 12/31/2014 1,248,494 843,271 208.10 254,406
BAILLIE GIFFORD & CO 12/31/2014 6,030,685 840,390 16.19 1,228,873
TIAA CREF INVESTMENT MANAGEMENT LLC 12/31/2014 1,896,150 482,963 34.18 386,378
TWO SIGMA INVESTMENTS LLC 09/30/2014 303,103 303,103 New 61,763
STATE TREASURER STATE OF MICHIGAN 12/31/2014 623,321 290,000 87.00 127,014
CREDIT SUISSE AG/ 12/31/2014 479,185 271,822 131.09 97,644
VANGUARD GROUP INC 12/31/2014 3,395,745 240,625 7.63 691,951
MORGAN STANLEY 12/31/2014 4,303,356 226,530 5.56 876,895
BAMCO INC /NY/ 09/30/2014 1,033,460 195,909 23.39 210,588
AMERIPRISE FINANCIAL INC 12/31/2014 2,064,711 159,464 8.37 420,726
Read more: http://www.nasdaq.com/symbol/tsla/institutional-holdings/increased#ixzz3S9SgjhDN