Prothena Corporation plc Major Shareholders & Ownership History
| Major Shareholder Name | Reporting Date | Shares Held | Market Value | Change in Shares | Ownership |
|---|---|---|---|---|---|
| ECOR1 CAPITAL, LLC | 02/14/2025 | 11.58 M | $160.44 M | 0.00% | 21.54% |
| FMR LLC | 02/13/2025 | 8.07 M | $111.79 M | 0.05% | 15.01% |
| WELLINGTON MANAGEMENT GROUP LLP | 02/12/2025 | 5.13 M | $71.06 M | 22.78% | 9.54% |
| BLACKROCK FUNDING, INC. /DE | 02/07/2025 | 4.12 M | $57.09 M | 2.33% | 7.66% |
| PRICE T ROWE ASSOCIATES INC /MD/ | 02/14/2025 | 3.69 M | $51.05 M | -3.58% | 6.85% |
| ARMISTICE CAPITAL, LLC | 02/14/2025 | 2.24 M | $30.97 M | 35.52% | 4.16% |
| PALO ALTO INVESTORS LP | 02/14/2025 | 1.74 M | $24.07 M | 0.00% | 3.23% |
| VANGUARD GROUP INC | 02/11/2025 | 1.40 M | $19.44 M | 11.50% | 2.61% |
| SIREN, L.L.C. | 02/14/2025 | 1.10 M | $15.23 M | 0.00% | 2.04% |
| GEODE CAPITAL MANAGEMENT, LLC | 02/12/2025 | 964,308 | $13.36 M | 0.09% | 1.79% |
| DIMENSIONAL FUND ADVISORS LP | 02/13/2025 | 864,833 | $11.98 M | 1.26% | 1.61% |
| FEDERATED HERMES, INC. | 02/13/2025 | 746,177 | $10.33 M | 84.29% | 1.39% |
| 02/14/2025 | 690,000 | $9.56 M | 100.00% | 1.28% | |
| FINEPOINT CAPITAL LP | 02/13/2025 | 657,071 | $9.10 M | 51.58% | 1.22% |
| ROCK SPRINGS CAPITAL MANAGEMENT LP | 02/14/2025 | 644,601 | $8.93 M | 3.13% | 1.20% |
| GOLDMAN SACHS GROUP INC | 02/11/2025 | 556,526 | $7.71 M | 34.01% | 1.03% |
| PROSIGHT MANAGEMENT, LP | 02/14/2025 | 418,122 | $5.79 M | -13.52% | 0.78% |
| JPMORGAN CHASE & CO | 02/12/2025 | 387,350 | $5.36 M | 93.69% | 0.72% |
| UBS ASSET MANAGEMENT AMERICAS INC | 02/14/2025 | 381,508 | $5.28 M | -27.57% | 0.71% |
| UBS GROUP AG | 02/14/2025 | 371,287 | $5.14 M | 494.00% | 0.69% |
| MARINER, LLC | 02/13/2025 | 343,917 | $4.76 M | 6.41% | 0.64% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 02/06/2025 | 327,151 | $4.53 M | 0.67% | 0.61% |
| BIRCHVIEW CAPITAL, LP | 02/14/2025 | 304,574 | $4.22 M | 45.33% | 0.57% |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 02/14/2025 | 257,000 | $3.56 M | 127.64% | 0.48% |
| RENAISSANCE TECHNOLOGIES LLC | 02/13/2025 | 201,900 | $2.80 M | 10.45% | 0.38% |
| NUVEEN ASSET MANAGEMENT, LLC | 02/14/2025 | 152,107 | $2.11 M | 0.25% | 0.28% |
| BANK OF NEW YORK MELLON CORP | 02/04/2025 | 150,238 | $2.08 M | 14.87% | 0.28% |
| PDT PARTNERS, LLC | 02/14/2025 | 127,203 | $1.76 M | 14.96% | 0.24% |
| MILLENNIUM MANAGEMENT LLC | 02/14/2025 | 123,005 | $1.70 M | 9.30% | 0.23% |
| HAP TRADING, LLC | 02/13/2025 | 121,900 | $20,919 | 100.00% | 0.23% |
| AXA S.A. | 02/14/2025 | 120,630 | $1.67 M | -0.10% | 0.22% |
| BARCLAYS PLC | 02/13/2025 | 105,338 | $1.46 M | 10.62% | 0.20% |
| DCF ADVISERS, LLC | 02/11/2025 | 103,500 | $1.43 M | -3.72% | 0.19% |
| PINNACLE ASSOCIATES LTD | 02/14/2025 | 103,081 | $1.43 M | -18.03% | 0.19% |
| BNP PARIBAS ARBITRAGE, SNC | 02/14/2025 | 97,383 | $1.35 M | 74.39% | 0.18% |
| DEUTSCHE BANK AG\ | 02/14/2025 | 95,970 | $1.33 M | 195.67% | 0.18% |
| CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 02/10/2025 | 91,840 | $1.27 M | -25.02% | 0.17% |
| BOOTHBAY FUND MANAGEMENT, LLC | 02/14/2025 | 91,500 | $1.27 M | 100.00% | 0.17% |
| CAPTION MANAGEMENT, LLC | 02/14/2025 | 87,900 | $1.22 M | 100.00% | 0.16% |
| SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC | 02/14/2025 | 80,677 | $1.12 M | 100.00% | 0.15% |
| RAFFERTY ASSET MANAGEMENT, LLC | 02/14/2025 | 77,672 | $1.08 M | 24.81% | 0.14% |
| MAN GROUP PLC | 02/14/2025 | 77,430 | $1.07 M | 90.69% | 0.14% |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 02/14/2025 | 70,184 | $972,048 | -18.46% | 0.13% |
| DUNCAN WILLIAMS ASSET MANAGEMENT, LLC | 01/21/2025 | 69,199 | $958,406 | 41.95% | 0.13% |
| SWISS NATIONAL BANK | 02/10/2025 | 68,700 | $951,495 | 0.00% | 0.13% |
| CITIGROUP INC | 02/12/2025 | 68,433 | $947,797 | 113.36% | 0.13% |
| RHUMBLINE ADVISERS | 01/30/2025 | 67,115 | $929,527 | 1.78% | 0.12% |
| TD ASSET MANAGEMENT INC | 02/11/2025 | 64,694 | $896,012 | -35.75% | 0.12% |
| BOOTHBAY FUND MANAGEMENT, LLC | 02/14/2025 | 62,002 | $858,728 | 100.00% | 0.12% |
| NORGES BANK | 02/12/2025 | 57,454 | $795,738 | 100.00% | 0.11% |
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Prothena Corporation plc institutional Ownership - FAQ's
During the previous two years, 240 institutional investors and hedge funds held shares of Prothena Corporation plc. The most heavily invested institutionals were:
EcoR1 Capital, LLC: 11.58 M
FMR LLC: 8.07 M
WELLINGTON MANAGEMENT GROUP LLP: 5.13 M
BlackRock Funding, Inc. /DE: 4.12 M
PRICE T ROWE ASSOCIATES INC /MD/: 3.69 M
ARMISTICE CAPITAL, LLC: 2.24 M
99.49% of Prothena Corporation plc stock is owned by institutional investors.
Institutional investors have bought a total of 59.00 M shares in the last 24 months. This purchase volume represents approximately $775.87 M in transactions.