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PROTHENA CORP PUBLIC LTD CO hedge fund holdings

PRTANASDAQ
$8.27-0.09 (-1.08% today)

Every quarter, large institutional investment managers with over $100M in U.S.-listed assets under management disclose their U.S. equity holdings through 13F filings. Read together, those filings show which businesses professional capital is moving into and out of.

Price vs funds buying and selling

PRTA · close · 13FReported Aug 14, 2026

Price vs funds buying and selling data

Showing the 1Y range: Oct 6, 2025 to Oct 5, 2026. Price (-16.1%). 0 fund reports plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
DateCategoryPersonRoleActionAmountChange in holding
Funds buying · new + increased
Funds selling · reduced + closed
Net buyers vs sellers
Buying = new + increased; selling = reduced + closed. Counts exclude position changes under 5% of the fund's holding last quarter.

Price and fund activity data

Quarterly 13F fund buying and selling activity
QuarterFunds buyingFunds sellingBoughtSoldFilersReported
Q2 20258553$80.2M$154M176Aug 14, 2025
Q3 20256876$87.3M$86.4M175Nov 14, 2025
Q4 20257253$87.3M$47.3M174Feb 14, 2026
Q1 20266760$46.1M$46.9M179May 15, 2026
Q2 20266457$37.4M$31.8M179Aug 14, 2026

Quarterly action breakdown

Q2 2026
179 filers
New position
25
$6.6M+674K sh
Increased
39
$30.8M+3.14M sh
Reduced
38
-$19.5M-1.99M sh
Out / sold
19
-$12.3M-1.26M sh
Last 4 quarters · free
Reported Aug 14, 2026
FundActionChange in dollarValue% of portfolioReported
Monimus Capital Management, LPReduce 32.24%-$1.53M$3.22M0.75%Aug 14, 2026
Diadema Partners LPNew Buy+$1.46M$1.46M0.18%Aug 14, 2026
Campbell & CO Investment Adviser LLCReduce 52.07%-$727K$669K0.04%Aug 3, 2026
Palo Alto Investors LPReduce 5.41%-$640K$11.2M1.55%Aug 19, 2026
Jackson Creek Investment Advisors LLCSell 100%-$526K$00.00%Aug 10, 2026
Persistent Asset Partners LtdNew Buy+$373K$373K0.11%Aug 7, 2026
Fox Run Management, L.L.C.Sell 100%-$324K$00.00%Aug 4, 2026
ADAR1 Capital Management, LLCReduce 1.70%-$263K$15.2M0.70%Aug 14, 2026
Canada Pension Plan Investment BoardNew Buy+$235K$235K0.00%Aug 14, 2026
Susquehanna Portfolio Strategies, LLCAdded 21.87%+$145K$810K0.01%Aug 14, 2026
Quantinno Capital Management LPAdded 9.72%+$137K$1.55M0.00%Aug 13, 2026
Virtus Investment Advisers, LLCAdded 50.68%+$131K$388K0.09%Aug 11, 2026
nVerses Capital, LLCNew Buy+$130K$130K0.20%Aug 4, 2026
Rafferty Asset Management, LLCReduce 24.16%-$126K$395K0.00%Aug 14, 2026
Cornerstone Select Advisors, LLCNew Buy+$97.9K$97.9K0.04%Aug 5, 2026
Vontobel Holding Ltd.Sell 100%-$97.2K$00.00%Aug 3, 2026
Graham Capital Management, L.P.Added 44.27%+$55.6K$181K0.00%Aug 14, 2026
Massachusetts Financial Services CoReduce 3.83%-$49.5K$1.24M0.00%Aug 3, 2026
Profund Advisors LLCReduce 14.31%-$33.6K$201K0.01%Aug 11, 2026
Pinnacle Associates LtdReduce 4.52%-$26.9K$567K0.01%Aug 3, 2026
Hennion & Walsh Asset Management, Inc.Added 2.54%+$22K$889K0.03%Jul 8, 2026
Flagship Wealth Advisors, LLCNew Buy+$14.7K$14.7K0.00%Jul 27, 2026
China Universal Asset Management Co., Ltd.Reduce 12.78%-$12K$81.6K0.00%Jul 24, 2026
Inscription Capital, LLCAdded 10.11%+$10.4K$113K0.01%Aug 13, 2026
Great Lakes Advisors, LLCReduce 2.91%-$8.42K$281K0.00%Aug 10, 2026
Pacer Advisors, Inc.New Buy+$7K$7K0.00%Aug 13, 2026
Aster Capital Management (DIFC) LtdSell 100%-$3.17K$00.00%Aug 14, 2026
Johnson Financial Group, Inc.Sell 100%-$1.47K$00.00%Aug 10, 2026
Versant Capital Management, IncReduce 6.75%-$1.45K$20K0.00%Jul 2, 2026
Axiom Investment Management LLCNew Buy+$1.43K$1.43K0.00%Jul 31, 2026
Quarry LPNew Buy+$881$8810.00%Aug 14, 2026
Keating Financial Advisory Services, Inc.Sell 100%-$739$00.00%Aug 11, 2026
Focused Wealth Management, IncAdded 0.02%+$411$2.03M0.18%Aug 7, 2026
Silver Grove Financial Group, Inc.New Buy+$382$3820.00%Aug 13, 2026
IFG Advisory, LLCNew Buy+$69$690.00%Aug 14, 2026
Assetmark, IncNew Buy+$20$200.00%Jul 30, 2026

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