PRTA

Prothena Corporation plc Institutional Ownership

$66.7
*  
0.15
0.22%
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*Delayed - data as of Jul. 30, 2015  -  Find a broker to begin trading PRTA now
Exchange: NASDAQ
Industry: Health Care
Community Rating:
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Ownership Summary Institutional Holdings Insiders
(SEC Form 4)
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Ownership Summary


Institutional Ownership 83.28%
Total Shares Outstanding (millions) 31
Total Value of Holdings (millions) $1,742

Active Positions

Holders Shares
Increased Positions 56 5,249,402
Decreased Positions 44 1,938,314
Held Positions 39 18,866,964
Total Institutional Shares 139 26,054,680

New and Sold Out Positions


Holders Shares
New Positions 14 3,733,331
Sold Out Positions 19 1,247,600

139 Institutional Holders
26,054,680 Total Shares Held


Click on the column header links to resort ascending (▲) or descending (▼).
Owner Name Date Shared Held Change (Shares) Change (%) Value (in 1,000s)
FMR LLC 03/31/2015 4,109,930 2,312 .06 274,749
PRICE T ROWE ASSOCIATES INC /MD/ 03/31/2015 3,439,296 2,800 .08 229,917
WOODFORD INVESTMENT MANAGEMENT LLP 12/31/2014 3,237,363 3,237,363 New 216,418
WELLINGTON MANAGEMENT GROUP LLP 03/31/2015 2,500,712 (8,330) (0.33) 167,173
WESTFIELD CAPITAL MANAGEMENT CO LP 03/31/2015 1,734,928 656,378 60.86 115,980
CAPITAL WORLD INVESTORS 03/31/2015 1,263,214 0 0.00 84,446
STATE STREET CORP 03/31/2015 1,189,576 39,879 3.47 79,523
BLACKROCK FUND ADVISORS 03/31/2015 1,071,514 15,843 1.50 71,631
MILLENNIUM MANAGEMENT LLC 03/31/2015 738,429 (128,617) (14.83) 49,364
PALO ALTO INVESTORS, LLC 03/31/2015 695,918 4,700 .68 46,522
JENNISON ASSOCIATES LLC 03/31/2015 576,292 (124,462) (17.76) 38,525
BLACKROCK INSTITUTIONAL TRUST COMPANY, N.A. 03/31/2015 544,021 100,053 22.54 36,368
NORTHERN TRUST CORP 03/31/2015 424,632 14,215 3.46 28,387
VANGUARD GROUP INC 03/31/2015 393,645 18,392 4.90 26,315
VISIUM ASSET MANAGEMENT, LP 03/31/2015 302,039 302,039 New 20,191

Institutional Holdings information for this company is filed by major institutions on form 13-F with the Securities and Exchange Commission.
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