OakChart

Prothena Corp Plc

PRTAHealthcare·Biotechnology·Ireland·Small·NASD·Nov 11 • 3:59 PM ET

8.73+0.17 (1.99%)
2026-11-11 22:05 CET
Market cap
439.55 USD m
Revenue, TTM
52.73 USD m
Net income, TTM
-23.96 USD m
Free cash flow, TTM
-30.75 USD m
EPS diluted, TTM
-0.47
P/E
-
Compare

Price

PRTA against its 20, 50 and 200-day averages
2050200beatmiss
8.009.0010.0011.0012.00956K1.9MVolumeMay 26Jun 26Jul 26Aug 26Sep 26Oct 26Nov 26PRTAclose 8.7320-day 8.4450-day 8.60200-day 9.188.7352w high52w low

26.0% under the 52-week high of 11.80 on 8 May 2026. 52-week low 7.73 on 11 Jun 2026. Last 15 sessions, 18.8% high to low

Volume 0.84× normal · the line is the 50-bar volume average

Profile

PRTA
52-week range, 25% of the way up
7.7311.80

Prothena Corp. Plc is a clinical-stage neuroscience company, which engages in the discovery and development of novel therapies to change the course of devastating diseases. The firm's clinical pipeline includes both wholly owned and partnered programs being developed for the potential treatment of diseases including AL amyloidosis, ATTR amyloidosis, Alzheimer's disease, Parkinson's disease and other neurodegenerative diseases. The company was founded in December 1969 and is headquartered in Dublin, Ireland.

IndexRUT
Employees67
IPODec 21, 2012
Beta-0.21
ATR, 14d0.45
Rel volume0.84
Short float18.01%
Insider own14.46%
Inst own92.71%

Snapshot

6 groups

Valuation

IndexRUT
Market Cap448.28M
Enterprise Value183.17M
Income-23.96M
Sales52.73M
Book/sh5.24
Cash/sh5.28
Dividend Est.-
Dividend TTM-
Dividend Ex-Date-
Dividend Gr. 3/5Y- -
Payout-
Employees67
IPODec 21, 2012

Ratios

P/E-
Forward P/E-
PEG-
P/S8.50
P/B1.67
P/C1.65
P/FCF-
EV/EBITDA-
EV/Sales3.47
Quick Ratio23.95
Current Ratio23.95
Debt/Eq0.02
LT Debt/Eq0.01
Option/ShortYes / Yes

Earnings

EPS (ttm)-0.47
EPS next Y-1.02
EPS next Q0.02
EPS this Y99.46%
EPS next Y-4082.30%
EPS next 5Y62.13%
EPS past 3/5Y-22.46% -10.24%
Sales past 3/5Y-43.57% 62.56%
EPS Y/Y TTM91.00%
Sales Y/Y TTM347.44%
EPS Q/Q52.71%
Sales Q/Q-74.33%
EarningsNov 05 AMC
EPS/Sales Surpr.-40.91% -93.53%

Ownership

Insider Own14.46%
Insider Trans25.82%
Inst Own92.71%
Inst Trans-2.31%
ROA-7.53%
ROE-8.50%
ROIC-8.81%
Gross Margin92.98%
Oper. Margin-73.02%
Profit Margin-45.43%
SMA203.45%
SMA501.49%
SMA200-4.94%
Trades-

Technical

Shs Outstand51.34M
Shs Float43.92M
Short Float18.01%
Short Ratio16.99
Short Interest7.91M
52W High11.80 -26.02%
52W Low7.73 12.94%
Volatility6.48% 5.08%
ATR (14)0.45
RSI (14)53.74
Beta-0.21
Rel Volume0.84
Avg Volume465.67K
Volume392,263

Performance

Perf Week4.05%
Perf Month4.43%
Perf Quarter-3.85%
Perf Half Y-9.06%
Perf YTD-8.59%
Perf Year-16.70%
Perf 3Y-73.80%
Perf 5Y-84.55%
Perf 10Y-86.27%
Recom2.00
Target Price21.40
Prev Close8.56
Price8.73
Change %1.99%

Analyst ratings

latest 10 of 20
DateActionAnalystRating changeTargetImplied
May 28, 2025DowngradeBBofA SecuritiesNeutral → Underperform$4-54.2%
May 27, 2025DowngradeOOppenheimerOutperform → Perform
May 27, 2025DowngradeJJefferiesBuy → Hold$6-31.3%
May 27, 2025DowngradeCCantor FitzgeraldOverweight → Neutral
Dec 20, 2024InitiatedCChardan Capital MarketsBuy$40+358.2%
Jan 30, 2024DowngradeBBofA SecuritiesBuy → Neutral$68 → $38+335.3%
Dec 12, 2023InitiatedDDeutsche BankBuy$62+610.2%
Apr 24, 2023InitiatedSSVB SecuritiesOutperform$80+816.4%
Jan 27, 2023InitiatedPPiper SandlerOverweight$94+976.7%
Nov 04, 2022DowngradeRRBC Capital MktsOutperform → Sector Perform$52 → $55+530.0%

Peers

Mkt cap
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ACIUAC Immune SA230.01M
KRSAKorsana Biosciences Inc1.45B
ALECAlector Inc391.55M
DNLIDenali Therapeutics Inc3.16B
CGTXCognition Therapeutics Inc64.42M
AVXLAnavex Life Sciences Corp98.26M
ANVSAnnovis Bio Inc36.58M
VYGRVoyager Therapeutics Inc109.53M
ATHEAlterity Therapeutics Ltd ADR43.93M

Insider trading

latest 14 of 25
InsiderRelationshipDateTransactionCostSharesValueTotal heldForm
SCULLY WILLIAM P10% OwnerNov 09 '26Buy8.53140,0001,194,158977,000Nov 10 02:45 PM
SCULLY WILLIAM P10% OwnerOct 22 '26Buy8.19100,000818,5201,137,000Oct 26 04:20 PM
SCULLY WILLIAM P10% OwnerOct 23 '26Buy8.0750,000403,5251,187,000Oct 26 04:20 PM
SCULLY WILLIAM P10% OwnerOct 13 '26Buy8.35100,000835,4801,027,000Oct 15 04:21 PM
SCULLY WILLIAM P10% OwnerOct 14 '26Buy8.4610,00084,5691,037,000Oct 15 04:21 PM
SCULLY WILLIAM P10% OwnerOct 07 '26Buy8.40125,0001,050,150439,000Oct 09 09:43 AM
SCULLY WILLIAM P10% OwnerOct 08 '26Buy8.5790,000770,904529,000Oct 09 09:43 AM
SCULLY WILLIAM P10% OwnerOct 02 '26Buy8.57100,000857,240314,000Oct 06 01:53 PM
SCULLY WILLIAM P10% OwnerSep 29 '26Buy8.68162,0001,405,674214,000Sep 30 05:10 PM
SCULLY WILLIAM P10% OwnerSep 28 '26Buy8.60103,500889,872187,000Sep 29 05:37 PM
SCULLY WILLIAM P10% OwnerSep 18 '26Buy8.43100,000843,460927,000Sep 21 04:23 PM
SCULLY WILLIAM P10% OwnerSep 02 '26Buy9.4727,000255,739827,000Sep 03 06:23 PM
SCULLY WILLIAM P10% OwnerAug 20 '26Buy8.7950,000439,430800,000Aug 21 02:32 PM
SCULLY WILLIAM P10% OwnerAug 07 '26Buy8.6234,000293,053790,000Aug 10 03:24 PM

Held by

AUM
TickerCompanyAUM
IWMiShares Russell 2000 Index FundAUM: 77.38B
XBIState Street SPDR S&P Biotech ETFAUM: 10.50B
VXFVanguard Extended Market Index ETFAUM: 30.47B
DFASU.S. Small Cap Portfolio-ETF Class SharesAUM: 15.51B
IBBiShares Biotechnology ETFAUM: 11.36B
VTWOVanguard Russell 2000 Index ETFAUM: 16.75B
FSCCFederated Hermes MDT Small Cap Core ETFAUM: 494.86M
IWOiShares Russell 2000 Growth ETFAUM: 14.06B
SCHASchwab U.S. Small-Cap ETFAUM: 22.25B
DFMCU.S. Micro Cap Portfolio ETF Class SharesAUM: 212.10M

News

latest 14 of 200

Quarterly earnings

actual against estimate
PeriodReportedEPS actEPS estEPS repSales actSales estAnalysts
2026Q32026-11-05-0.320-0.227-0.3200.629.587
2026Q22026-08-06-0.360-0.390-0.3561.010.426
2026Q12026-05-070.600-0.3480.60551.080.816
2025Q42026-02-19-0.400-0.559-0.4010.021.337
2025Q32025-11-06-0.680-0.687-0.6792.426.647
2025Q22025-08-04-2.340-1.254-2.3374.426.138
2025Q12025-05-08-1.120-0.970-1.1182.8311.458
2024Q42025-02-20-1.080-1.023-1.0772.127.539
2024Q32024-11-13-1.100-1.168-1.0970.971.358
2024Q22024-08-081.220-1.0591.215132.0110.739
2024Q12024-05-08-1.340-1.158-1.3450.052.178
2023Q42024-02-15-1.260-1.176-1.2570.322.159
2023Q32023-11-020.380-0.3230.37884.8741.699
2023Q22023-08-03-1.030-0.933-1.0284.025.099
2023Q12023-05-04-0.890-0.871-0.8932.178.609
2022Q42023-02-230.120-0.4660.11849.9229.1410

Annual earnings

PeriodEPS actEPS estEPS repSales actSales est
2019FY-1.950-1.978-1.9480.810.86
2020FY-2.780-2.787-2.7850.850.65
2021FY1.3801.3111.382200.58205.49
2022FY-2.470-3.023-2.46953.9143.01
2023FY-2.760-2.789-2.76391.3786.72
2024FY-2.270-2.214-2.275135.16140.55
2025FY-4.530-4.694-4.5309.6810.84
2026FY--0.024--72.42
2027FY--1.016--24.54
2028FY--0.246--101.08
2029FY--0.482--149.36
2030FY-1.638--236.28

Estimate revisions

last 14 periods
PeriodTypeDateEstimatesUpDownMeanLowHigh
2026Q4S2026-11-0670219.920.0055.00
2026Q4S2026-10-2860026.170.0055.00
2026Q4S2026-10-2160126.170.0055.00
2026Q4S2026-10-1361126.170.0055.00
2026Q4S2026-08-1651125.800.0055.00
2026Q4S2026-08-1461121.500.0055.00
2026Q4S2026-08-0761022.230.0055.00
2026Q4S2026-07-2360122.230.0055.00
2026Q4S2026-07-2260022.230.0055.00
2026Q4S2026-05-0862122.230.0055.00
2026Q4S2026-05-0650030.910.0075.00
2026Q4S2026-03-0952030.910.0075.00
2026Q4S2026-03-0352030.910.0075.03
2026Q4S2026-02-2042033.760.0075.03

Estimate history

EPS, annual-4.07-3.935-1.948-2.7851.382-2.469-2.763-2.275-4.535-0.4737
Period201720182019202020212022202320242025TTM
EPS, quarterly-1.097-1.077-1.118-2.337-0.679-0.4010.605-0.356-0.321
PeriodQ3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Sales, annual27.5190.9550.8140.853200.57753.90591.37135.1579.68452.73
Period201720182019202020212022202320242025TTM
Sales, quarterly0.972.1232.8284.422.4150.02151.0841.010.62
PeriodQ3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26
Shares, annual38.48339.86439.89939.92146.6652.10453.68253.82753.83351.341
Period201720182019202020212022202320242025MRQ
Shares, quarterly53.80953.82753.82753.82753.8353.83353.07751.74451.341
PeriodQ3 '24Q4 '24Q1 '25Q2 '25Q3 '25Q4 '25Q1 '26Q2 '26Q3 '26

Income statement, annual

Currency USD, millions
MetricTTM2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY
Total Revenue52.739.68135.1691.3753.91200.580.850.810.95
Cost of Goods Sold Incl. D&A3.703.703.598.416.74----
Gross Profit49.035.98131.5782.9647.16----
Selling, General and Administrative Excl. Other87.54190.54286.13273.99178.72121.80106.6179.75140.45
Research and Development44.44134.85222.52220.57135.5682.2874.8850.84101.18
Other Operating Expense0.000.000.000.000.000.000.000.000.00
Operating Income-38.51-184.56-154.56-191.04-131.5671.97-112.73-85.76-142.71
Interest Expense0.000.000.000.000.000.000.000.000.00
Unusual Expense-4.4230.080.000.000.000.000.00-0.0616.15
Net Income Before Taxes-23.95-200.83-128.93-160.48-125.6171.92-111.43-77.30-156.12
Income Taxes0.0243.26-6.62-13.45-8.664.95-0.280.38-0.47
Consolidated Net Income-23.96-244.09-122.31-147.03-116.9566.98-111.14-77.68-155.65
Net Income From Continuing Operations-23.96-244.09-122.31-147.03-116.9566.98-111.14-77.68-155.65
Net Income-23.96-244.09-122.31-147.03-116.9566.98-111.14-77.68-155.65
EPS (Recurring)-0.53-4.14-2.27-2.76-2.471.38-2.78-1.95-3.65
EPS (Basic, Before Extraordinaries)-0.47-4.53-2.27-2.76-2.471.51-2.78-1.95-3.93
EPS (Diluted)-0.47-4.53-2.27-2.76-2.471.38-2.78-1.95-3.93
EBITDA-34.80-180.86-150.98-182.62-124.8278.78-105.76-78.94-139.49
Non-Operating Income (Expense)10.1513.8125.6330.565.95-0.051.318.402.74
Other After Tax Adjustments0.000.000.000.000.000.000.000.000.00
Stock Option Compensation Expense22.3629.7436.3132.3224.7421.5819.2620.6423.63
Price To Earnings Ratio-----35.43---
Price To Sales Ratio8.1753.085.5121.1752.9411.94561.99775.59426.66
Gross Margin92.9861.7797.3590.7987.49----
Operating Margin-73.02-1,905.82-114.36-209.08-244.0535.88-13,216.18-10,535.38-14,943.46
Net Margin-45.43-2,520.57-90.49-160.91-216.9533.39-13,029.78-9,542.63-16,297.91
Shares Outstanding51.3453.8353.8353.6852.1046.6639.9239.9039.86
Market Capitalization439.55439.55745.251,950.203,110.502,301.73479.46631.57410.60

Income statement, quarterly

Currency USD, millions
Metric2026Q32026Q22026Q12025Q42025Q32025Q22025Q12024Q4
Total Revenue0.621.0151.080.022.424.422.832.12
Cost of Goods Sold Incl. D&A0.930.910.920.940.940.880.910.91
Gross Profit-0.310.1050.17-0.921.473.541.921.21
Selling, General and Administrative Excl. Other18.0918.7824.3826.2941.2355.5467.5066.11
Research and Development8.438.8012.6314.5928.9440.5250.8150.17
Other Operating Expense0.000.000.000.000.000.000.000.00
Operating Income-18.40-18.6925.79-27.21-39.76-52.01-65.58-64.90
Interest Expense0.000.000.000.000.000.000.000.00
Unusual Expense0.422.41-4.24-3.010.4832.610.000.00
Net Income Before Taxes-16.51-18.5832.72-21.58-36.91-80.97-61.37-59.50
Income Taxes0.000.000.000.01-0.3744.80-1.18-1.55
Consolidated Net Income-16.51-18.5832.72-21.59-36.54-125.77-60.20-57.96
Net Income From Continuing Operations-16.51-18.5832.72-21.59-36.54-125.77-60.20-57.96
Net Income-16.51-18.5832.72-21.59-36.54-125.77-60.20-57.96
EPS (Recurring)-0.32-0.320.55-0.44-0.67-1.91-1.12-1.08
EPS (Basic, Before Extraordinaries)-0.32-0.360.61-0.40-0.68-2.34-1.12-1.08
EPS (Diluted)-0.32-0.360.60-0.40-0.68-2.34-1.12-1.08
EBITDA-17.47-17.7726.71-26.27-38.82-51.12-64.67-63.98
Non-Operating Income (Expense)2.312.522.692.623.333.654.215.40
Other After Tax Adjustments0.000.000.000.000.000.000.000.00
Stock Option Compensation Expense5.066.225.465.615.6910.028.658.30
Price To Sales Ratio8.179.369.0853.0944.5831.604.835.51
Gross Margin-50.009.5098.20-4,385.7160.9580.0267.8656.99
Operating Margin-2,967.90-1,850.2050.49-129,576.19-1,646.42-1,176.63-2,318.99-3,056.85
Net Margin-2,662.74-1,839.9064.05-102,804.76-1,513.08-2,845.41-2,128.54-2,729.91
Shares Outstanding51.3451.7453.0853.8353.8353.8353.8353.83
Market Capitalization439.55512.54523.26514.08525.38326.73666.11745.25

Balance sheet, annual

Currency USD, millions
Metric2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY2017FY
Cash & Short Term Investments307.53471.39620.18710.41579.09296.73375.72427.66417.62
Short Term Receivables0.000.005.160.000.000.020.070.000.24
Inventories0.000.000.000.000.000.000.000.000.00
Other Current Assets7.6614.0213.948.695.722.542.583.738.47
Total Current Assets315.19485.41639.28719.10584.81299.28378.38431.39426.33
Net Property, Plant & Equipment10.2713.7916.008.0114.1420.3627.1552.8454.99
Total Investments and Advances0.860.860.862.211.351.352.704.064.06
Intangible Assets--------0.00
Deferred Tax Assets0.0043.2433.8918.207.0711.649.969.708.11
Other Assets0.483.816.3510.512.000.331.080.812.84
Total Assets326.80547.11696.38758.04609.37332.98419.27498.80496.33
Short Term Debt Incl. Current Port. of LT Debt2.892.611.116.475.945.515.100.000.00
Accounts Payable5.887.7725.399.273.694.121.241.4713.63
Income Tax Payable----0.000.040.010.050.31
Other Current Liabilities32.0838.1230.3934.4023.8216.1811.3713.4023.43
Total Current Liabilities40.8448.5056.8950.1533.4525.8517.7114.9337.37
Long Term Debt5.498.2310.720.006.3912.3317.840.000.00
Provision for Risks Charges0.000.000.000.000.000.000.000.000.00
Other Liabilities0.003.4567.4185.85103.49110.80110.80160.8751.77
Total Liabilities46.3360.18135.02135.99143.32148.97146.35175.8089.14
Non-Equity Reserves0.000.000.000.000.000.000.000.000.00
Preferred Stock - Carrying Value0.000.000.000.000.000.000.000.000.00
Common Equity280.47486.93561.37622.04466.04184.01272.92323.00407.19
Total Shareholders Equity280.47486.93561.37622.04466.04184.01272.92323.00407.19
Accumulated Minority Interest0.000.000.000.000.000.000.000.000.00
Total Equity280.47486.93561.37622.04466.04184.01272.92323.00407.19
Total Liabilities & Stockholders Equity326.80547.11696.38758.04609.37332.98419.27498.80496.33
Book Value Per Share5.219.0510.4611.949.994.616.848.1010.58
Tangible Book Value Per Share5.219.0510.4611.949.994.616.848.1010.58
Full-Time Employees6716317312782665159125
Price to Book Ratio1.631.393.167.134.952.612.311.273.23
Return on Assets-55.86-19.67-20.22-17.1114.21-29.55-16.92-31.28-32.05
Return on Equity-63.62-23.34-24.85-21.5020.61-48.65-26.07-42.63-39.67
Return on Invested Capital-85.36-24.70-25.70-18.8014.18-56.61-26.72-48.19-37.63
Quick Ratio7.7210.0111.2414.3417.4811.5821.3628.9011.41
Current Ratio7.7210.0111.2414.3417.4811.5821.3628.9011.41

Cash flow, annual

Currency USD, millions
MetricTTM2025FY2024FY2023FY2022FY2021FY2020FY2019FY2018FY
Net Income-21.33-244.09-122.31-147.03-116.9566.98-111.14-77.68-155.65
Depreciation3.673.703.598.416.746.806.986.823.22
Other Funds (Non Cash)21.0837.7445.9640.9331.3224.6622.0123.5931.29
Funds from Operations2.78-159.41-82.11-113.38-90.02103.01-83.84-48.52-122.73
Extraordinary Item0.000.000.000.000.000.000.000.000.00
Changes in Working Capital-32.82-4.17-67.94-20.53-18.80-10.403.48-4.4594.45
Cash from Operating Activities-30.03-163.58-150.05-133.91-108.8292.61-80.36-52.97-28.28
Capital Expenditures-0.72-0.14-0.30-2.81-0.46-0.58-0.20-0.56-1.77
Net Assets From Acquisitions0.000.000.000.000.000.000.000.00-
Sale of Fixed Assets and Businesses0.000.000.000.040.000.000.000.010.04
Purchase or Sale of Investments0.000.000.000.000.000.000.000.000.00
Purchase of Investments0.000.000.000.000.000.000.000.000.00
Sale Or Maturity of Investments0.000.000.000.000.000.000.000.000.00
Other Uses0.000.000.000.000.000.000.000.000.00
Other Sources0.000.000.000.000.000.000.000.000.00
Cash from Investing Activities-0.72-0.14-0.30-2.77-0.46-0.58-0.20-0.55-1.73
Cash Dividends Paid0.000.000.000.000.000.000.000.000.00
Change in Capital Stock-26.74-0.141.5545.10241.46190.330.220.2344.44
Repurchase of Common Pref Stock-26.600.000.000.000.000.000.000.000.00
Sale of Common Pref Stock-0.14-0.141.5545.10241.46190.330.220.2344.44
Proceedsfrom Stock Options-0.14-0.14-0.3523.58223.62174.790.000.0039.76
Issuance or Reduction of Debt, Net0.000.000.000.000.000.000.000.000.00
Change in Long Term Debt0.000.000.000.000.000.000.000.000.00
Issuance of Long Term Debt0.000.000.000.000.000.000.000.000.00
Reduction of Long Term Debt0.000.000.000.000.000.000.000.000.00
Net Financing Active Other Cash Flow-0.310.000.000.000.000.000.000.00-4.40
Other Financing Activities Uses-0.310.000.000.000.000.000.000.00-4.40
Cash from Financing Activities-27.05-0.141.5545.10241.46190.330.220.2340.04
Net Change in Cash-57.80-163.86-148.79-91.58132.17282.36-80.34-53.2910.04
Free Cash Flow-30.75-163.72-150.35-136.72-109.2892.03-80.56-53.52-30.04
Preferred Dividends (Cash Flow)-0.000.000.000.000.000.000.000.00
Price to Free Cash Flow-----26.01---
Deferred Taxes & Investment Tax Credit-43.24-9.35-15.69-11.134.57-1.69-1.25-1.59

Balance sheet, quarterly

Currency USD, millions
Metric2026Q32026Q22026Q12025Q42025Q32025Q2
Cash & Short Term Investments271.37288.19329.46307.53330.84371.44
Short Term Receivables0.000.000.000.000.000.00
Inventories0.000.000.000.000.000.00
Other Current Assets2.493.829.747.669.1314.04
Total Current Assets273.86292.01339.20315.19339.97385.48
Net Property, Plant & Equipment8.329.229.3510.2711.3112.25
Total Investments and Advances0.860.860.860.860.860.86
Deferred Tax Assets---0.000.000.00
Other Assets0.480.480.480.480.480.48
Total Assets283.52302.58349.89326.80352.63399.07
Short Term Debt Incl. Current Port. of LT Debt3.012.962.892.892.882.85
Accounts Payable1.691.944.305.8810.5012.20
Other Current Liabilities6.746.7625.3332.0838.0552.76
Total Current Liabilities11.4311.6632.5240.8451.4467.81
Long Term Debt3.254.034.765.496.206.93
Provision for Risks Charges0.000.000.000.000.000.00
Other Liabilities0.000.000.000.000.000.00
Total Liabilities14.6815.6937.2846.3357.6474.74
Non-Equity Reserves0.000.000.000.000.000.00
Preferred Stock - Carrying Value0.000.000.000.000.000.00
Common Equity268.84286.89312.62280.47294.99324.33
Total Shareholders Equity268.84286.89312.62280.47294.99324.33
Accumulated Minority Interest0.000.000.000.000.000.00
Total Equity268.84286.89312.62280.47294.99324.33
Total Liabilities & Stockholders Equity283.52302.58349.89326.80352.63399.07
Book Value Per Share5.245.545.895.215.486.03
Tangible Book Value Per Share5.245.545.895.215.486.03
Full-Time Employees---67--
Price to Book Ratio1.631.661.871.741.620.75
Return on Assets-7.53-12.54-35.77-55.86-59.18-58.00
Return on Equity-8.50-14.39-40.30-63.62-67.63-66.85
Return on Invested Capital-6.07-6.3910.31-7.55-12.13-37.97
Quick Ratio23.9525.0510.437.726.615.68
Current Ratio23.9525.0510.437.726.615.68

Cash flow, quarterly

Currency USD, millions
Metric2026Q32026Q22026Q12025Q42025Q32025Q2
Net Income-16.44-18.6332.72-18.98-39.77-132.79
Depreciation0.910.910.920.931.000.98
Other Funds (Non Cash)6.306.111.726.957.7313.30
Funds from Operations-9.23-11.6135.36-11.74-30.68-71.97
Extraordinary Item0.000.000.000.000.000.00
Changes in Working Capital-2.65-13.46-6.48-10.23-12.5821.86
Cash from Operating Activities-11.88-25.0628.88-21.97-43.26-50.11
Capital Expenditures-0.07-0.650.000.00-0.01-0.09
Net Assets From Acquisitions0.000.000.000.000.000.00
Sale of Fixed Assets and Businesses0.000.000.000.000.000.00
Purchase or Sale of Investments0.000.000.000.000.000.00
Purchase of Investments0.000.000.000.000.000.00
Sale Or Maturity of Investments0.000.000.000.000.000.00
Other Uses0.000.000.000.000.000.00
Other Sources0.000.000.000.000.000.00
Cash from Investing Activities-0.07-0.650.000.00-0.01-0.09
Cash Dividends Paid0.000.000.000.000.000.00
Preferred Dividends (Cash Flow)0.000.000.000.000.000.00
Change in Capital Stock-4.16-15.49-6.95-0.140.000.00
Repurchase of Common Pref Stock-4.16-15.49-6.950.000.000.00
Sale of Common Pref Stock0.000.000.00-0.140.000.00
Proceedsfrom Stock Options0.000.000.00-0.140.000.00
Issuance or Reduction of Debt, Net0.000.000.000.000.000.00
Change in Long Term Debt0.000.000.000.000.000.00
Issuance of Long Term Debt0.000.000.000.000.000.00
Reduction of Long Term Debt0.000.000.000.000.000.00
Net Financing Active Other Cash Flow-0.460.000.000.15-0.02-0.08
Other Financing Activities Uses-0.460.000.000.15-0.02-0.08
Cash from Financing Activities-4.62-15.49-6.950.00-0.02-0.08
Net Change in Cash-16.56-41.2121.93-21.97-43.29-50.28
Free Cash Flow-11.95-25.7128.88-21.97-43.27-50.20

Revenue breakdown

Collaboration2024: 135.11M 2025: 9.63M
Consolidation, Policy2024: 50.00K 2025: 50.00K
Ireland2024: 135.16M 2025: 9.68M

Short interest

shares short against float, oldest to newest
SettlementOf floatShares shortFloatAvg volume
2026-10-3018.01%7.9M43.9M472.26K
2026-10-1518.08%7.9M43.9M486.90K
2026-09-3018.07%8.0M44.3M469.72K
2026-09-1519.12%8.5M44.7M497.34K
2026-08-3119.01%8.5M44.7M524.46K
2026-08-1419.05%8.5M44.9M564.99K
2026-07-3117.91%8.2M45.6M580.81K
2026-07-1517.75%8.2M46.2M542.51K
2026-06-3018.12%8.4M46.2M537.61K
2026-06-1517.03%7.9M46.2M505.87K
2026-05-2916.74%7.7M46.2M527.58K
2026-05-1516.88%7.1M42.0M510.10K
2026-04-3016.31%6.9M42.1M484.52K
2026-04-1516.33%7.1M43.3M509.50K
2026-03-3116.17%7.0M43.4M515.58K
2026-03-1316.24%7.0M43.4M567.78K
2026-02-2715.80%6.9M43.4M571.60K
2026-02-1316.32%7.1M43.4M585.86K
2026-01-3016.28%7.1M43.4M624.11K
2026-01-1516.29%7.1M43.4M622.95K

Option chain

expiry 2026-11-20
TypeStrikeBidAskLastIVOpen intVolumeDeltaThetaVega
call1.006.109.100.000.0000.000.000.991-0.0150.000
call2.005.208.000.0016.7410.000.000.958-0.0840.001
call3.004.007.000.0011.5560.000.000.929-0.0920.002
call4.003.406.600.0011.3270.000.000.898-0.0920.002
call5.002.254.900.006.5840.000.000.863-0.0890.003
call6.001.404.000.005.4410.000.000.819-0.0820.004
call7.000.402.951.964.1015.000.000.760-0.0730.004
call8.000.751.300.851.28881.000.000.669-0.0570.005
call9.000.000.600.201.3171,0400.000.488-0.0430.005
call10.000.000.050.050.89058.005.000.166-0.0170.003
call11.000.000.950.001.0160.000.000.084-0.0120.002
call12.000.001.200.062.1011.000.000.210-0.0430.004
call13.000.000.750.001.5640.000.000.060-0.0140.002
call14.000.003.200.001.7450.000.000.055-0.0150.002
call15.000.001.350.001.9390.000.000.051-0.0160.001
call16.000.001.350.002.1150.000.000.047-0.0160.001
put1.000.000.050.007.4800.000.00-0.009-0.0130.000
put2.000.001.350.0012.0540.000.00-0.042-0.0830.001
put3.000.001.350.008.7420.000.00-0.071-0.0910.002
put4.000.001.250.006.7080.000.00-0.102-0.0920.002
put5.000.001.350.005.2270.000.00-0.137-0.0880.003
put6.000.001.350.003.9470.000.00-0.186-0.0790.004
put7.000.001.350.003.0240.000.00-0.240-0.0720.004
put8.000.000.750.002.0890.000.00-0.331-0.0560.005
put9.000.001.150.821.4811.000.00-0.512-0.0420.005
put10.001.051.800.001.8190.000.00-0.885-0.0090.003
put11.002.003.200.003.0740.000.00-0.916-0.0110.002
put12.002.004.800.004.6170.000.00-0.930-0.0120.002
put13.003.005.800.004.9840.000.00-0.939-0.0130.002
put14.004.006.800.005.3080.000.00-0.945-0.0130.002
put15.005.007.800.005.5980.000.00-0.949-0.0140.001
put16.005.908.600.005.4790.000.00-0.953-0.0140.001

Latest SEC filings

30
FiledFormDescriptionPeriodLink
2026-11-104Statement of changes in beneficial ownership of securities2026-11-06SEC
2026-11-0510-QQuarterly report pursuant to Section 13 or 15(d)2026-09-30SEC
2026-11-058-KCurrent report2026-11-05SEC
2026-10-298-KCurrent report2026-10-28SEC
2026-10-294Statement of changes in beneficial ownership of securities2026-10-27SEC
2026-10-264Statement of changes in beneficial ownership of securities2026-10-22SEC
2026-10-154Statement of changes in beneficial ownership of securities2026-10-13SEC
2026-10-094Statement of changes in beneficial ownership of securities2026-10-07SEC
2026-10-064Statement of changes in beneficial ownership of securities2026-10-02SEC
2026-10-028-KCurrent report2026-10-02SEC
2026-09-304Statement of changes in beneficial ownership of securities2026-09-29SEC
2026-09-294Statement of changes in beneficial ownership of securities2026-09-28SEC
2026-09-214Statement of changes in beneficial ownership of securities2026-09-18SEC
2026-09-034Statement of changes in beneficial ownership of securities2026-09-02SEC
2026-08-214Statement of changes in beneficial ownership of securities2026-08-20SEC
2026-08-19SCHEDULE 13G/ASEC
2026-08-183Initial statement of beneficial ownership of securities2026-08-18SEC
2026-08-184Statement of changes in beneficial ownership of securities2026-08-18SEC
2026-08-14SCHEDULE 13G/ASEC
2026-08-113Initial statement of beneficial ownership of securities2026-08-06SEC
2026-08-114Statement of changes in beneficial ownership of securities2026-08-10SEC
2026-08-104Statement of changes in beneficial ownership of securities2026-08-07SEC
2026-08-0610-QQuarterly report pursuant to Section 13 or 15(d)2026-06-30SEC
2026-08-068-KCurrent report2026-08-06SEC
2026-08-06SCHEDULE 13G/ASEC
2026-07-304Statement of changes in beneficial ownership of securities2026-07-28SEC
2026-07-304Statement of changes in beneficial ownership of securities2026-07-28SEC
2026-07-304Statement of changes in beneficial ownership of securities2026-07-28SEC
2026-07-304Statement of changes in beneficial ownership of securities2026-07-28SEC
2026-07-304Statement of changes in beneficial ownership of securities2026-07-28SEC

Insider activity by month

MonthBoughtBuysSoldSells
2026-111.19M100
2026-104.82M700
2026-093.39M400
2026-08762.65K300
2026-0700135.97K2
2026-062.12M400
2026-05981.30K100
2026-040000
2026-030000
2026-020000
2026-010000
2025-120000
2025-110000

Institutional holders

Manager% owned
FMR LLC13.66%
Rubric Capital Management LP9.55%
BlackRock, Inc.9.30%
STATE STREET CORP4.57%
ACADIAN ASSET MANAGEMENT LLC4.03%
VANGUARD PORTFOLIO MANAGEMENT LLC3.15%
D. E. Shaw & Co., Inc.3.08%
ADAR1 Capital Management, LLC2.97%
TWO SIGMA INVESTMENTS, LP2.42%
Palo Alto Investors LP2.18%

Funds

Fund% owned
Fidelity Growth Company Fund4.26%
State Street(R) SPDR(R) S&P(R) Biotech ETF2.78%
iShares Russell 2000 ETF2.22%
VANGUARD EXPLORER FUND1.45%
Fidelity Series Growth Company Fund1.41%
Nuveen Quant Small Cap Equity Fund1.21%
Fidelity Small Cap Index Fund0.93%
Select Biotechnology Portfolio0.92%
VANGUARD EXTENDED MARKET INDEX FUND0.92%
Fidelity Growth Company K6 Fund0.79%

OakChart. PRTA. Cached 15 minutes.