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Prothena (PRTA) Ownership Overview
2.65% Insiders
20.50% Mutual Funds
22.68% Other Institutional Investors
11.68% ETFs
42.49% Public Companies and
Individual Investors
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 54.86% of the company’s stock is owned by Institutional Investors, 2.65% is owned by Insiders, and 42.49% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
Aug 21, 2026 | xxxxxxxxxxxxx | $439000 | |
Aug 10, 2026 | xxxxxxxxxxxxx | $322875 | |
Jun 18, 2026 | xxxxxxxxxxxxx | $157800 | |
Jun 12, 2026 | xxxxxxxxxxxxx | $1020000 |
Recent Hedge Fund Trading Activity
Date | Firm | Activity | Value |
|---|---|---|---|
Jun 30, 2026 | xxxxxxxxxxxxx | $181076 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 3,482,656 | Institution | 6.78% | 32,562,834 | |
| 2,174,737 | Institution | 4.24% | 20,333,791 | |
| 1,779,289 | Institution | 3.47% | 16,636,352 | |
| 935,500 | Insider | 1.82% | 8,746,925 | |
| 909,671 | Institution | 1.77% | 8,505,424 | |
| 887,535 | Institution | 1.73% | 8,298,452 | |
| 643,917 | Institution | 1.25% | 6,020,624 | |
| 617,222 | Institution | 1.20% | 5,771,026 | |
| 551,089 | Institution | 1.07% | 5,152,682 | |
| 492,669 | Institution | 0.96% | 4,606,455 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 3,482,656 | Institution | 6.78% | 32,562,834 | |
| 887,535 | Institution | 1.73% | 8,298,452 | |
| 643,917 | Institution | 1.25% | 6,020,624 | |
| 617,222 | Institution | 1.20% | 5,771,026 | |
| 551,089 | Institution | 1.07% | 5,152,682 | |
| 492,669 | Institution | 0.96% | 4,606,455 | |
| 483,658 | Institution | 0.94% | 4,522,202 | |
| 469,864 | Institution | 0.92% | 4,393,228 | |
| 436,076 | Institution | 0.85% | 4,077,311 | |
| 333,148 | Institution | 0.65% | 3,114,934 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,533,704 | Institution | 2.99% | 14,340,132 | |
| 1,153,484 | Institution | 2.25% | 10,785,075 | |
| 481,576 | Institution | 0.94% | 3,910,397 | |
| 345,442 | Institution | 0.67% | 3,229,883 | |
| 253,603 | Institution | 0.49% | 2,371,188 | |
| 248,935 | Institution | 0.48% | 2,021,352 | |
| 200,282 | Institution | 0.39% | 1,868,631 | |
| 174,964 | Institution | 0.34% | 1,781,134 | |
| 169,283 | Institution | 0.33% | 1,582,796 | |
| 164,235 | Institution | 0.32% | 1,535,597 |
FAQ
Who Owns Prothena (PRTA)?
According to the latest TipRanks data, approximately 22.68% of the company's stock is held by institutional investors, 2.65% is held by insiders, and 42.49% is held by retail investors.
What percentage of Prothena (PRTA) stock is held by institutional investors?
According to the latest TipRanks data, approximately 22.68% of Prothena (PRTA) stock is held by institutional investors.
What percentage of Prothena (PRTA) stock is held by retail investors?
According to the latest TipRanks data, approximately 42.49% of Prothena (PRTA) stock is held by retail investors.
Who owns the most shares of Prothena (PRTA)?
Fidelity Mt. Vernon Street Trust owns the most shares of Prothena (PRTA).
What is the significance of the ownership structure for a publicly traded company?
The ownership structure can impact the company's decision making, as large institutional investors may exert influence on the company's management and can also affect the company's stock price with their buying and selling patterns.