Education
About Us
Working with TipRanks
Follow Us
Prothena (PRTA)
NASDAQ:PRTA
Prothena (PRTA) Ownership Overview
12.80% Insiders
18.98% Mutual Funds
21.97% Other Institutional Investors
9.37% ETFs
36.89% Public Companies and
Individual Investors
The ownership structure of Prothena (PRTA) stock is a mix of institutional, retail, and individual investors. Approximately 50.31% of the company’s stock is owned by Institutional Investors, 12.80% is owned by Insiders, and 36.89% is owned by Public Companies and Individual Investors.
Recent Insider Trading Activity
Date | Name | Activity | Value |
|---|---|---|---|
May 06, 2025 | xxxxxxxxxxxxx | $50825217 | |
May 02, 2025 | xxxxxxxxxxxxx | $2749173 |
Recent Hedge Fund Trading Activity
Date | Firm | Activity | Value |
|---|---|---|---|
Dec 31, 2025 | xxxxxxxxxxxxx | $265069 |
Top Shareholders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 5,304,596 | Insider | 9.85% | 47,900,502 | |
| 3,499,476 | Institution | 6.50% | 31,600,268 | |
| 1,922,650 | Institution | 3.57% | 17,361,530 | |
| 1,543,619 | Institution | 2.87% | 13,938,880 | |
| 926,943 | Insider | 1.72% | 8,370,295 | |
| 899,452 | Institution | 1.67% | 8,122,052 | |
| 856,049 | Institution | 1.59% | 7,730,122 | |
| 643,917 | Institution | 1.20% | 5,814,571 | |
| 586,973 | Institution | 1.09% | 5,300,366 | |
| 582,471 | Institution | 1.08% | 5,259,713 |
Top Mutual Fund Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 3,499,476 | Institution | 6.50% | 31,600,268 | |
| 899,452 | Institution | 1.67% | 8,122,052 | |
| 643,917 | Institution | 1.20% | 5,814,571 | |
| 586,973 | Institution | 1.09% | 5,300,366 | |
| 582,471 | Institution | 1.08% | 5,259,713 | |
| 465,066 | Institution | 0.86% | 4,199,546 | |
| 457,138 | Institution | 0.85% | 4,127,956 | |
| 427,991 | Institution | 0.80% | 3,864,759 | |
| 411,149 | Institution | 0.76% | 3,712,675 | |
| 321,955 | Institution | 0.60% | 2,907,254 |
Top ETF Holders
Holder | # of Shares | Type | % Holding | Value |
|---|---|---|---|---|
| 1,440,532 | Institution | 2.68% | 13,094,436 | |
| 1,078,597 | Institution | 2.00% | 9,739,731 | |
| 473,567 | Institution | 0.88% | 4,172,125 | |
| 338,783 | Institution | 0.63% | 3,059,210 | |
| 317,280 | Institution | 0.59% | 2,865,038 | |
| 209,595 | Institution | 0.39% | 1,846,532 | |
| 205,875 | Institution | 0.38% | 1,871,404 | |
| 173,656 | Institution | 0.32% | 1,578,533 | |
| 138,460 | Institution | 0.26% | 1,219,833 | |
| 76,485 | Institution | 0.14% | 690,660 |
FAQ
Who Owns Prothena (PRTA)?
According to the latest TipRanks data, approximately 21.97% of the company's stock is held by institutional investors, 12.80% is held by insiders, and 36.89% is held by retail investors.
What percentage of Prothena (PRTA) stock is held by institutional investors?
According to the latest TipRanks data, approximately 21.97% 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 36.89% of Prothena (PRTA) stock is held by retail investors.
Who owns the most shares of Prothena (PRTA)?
Ecor1 Capital, Llc 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.