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PRTA
Prothena Corporation plc
stock NASDAQ

At Close

Aug 4, 2026 3:59:57 PM EDT

8.48USD+2.106%(+0.17)329,912

7.12Bid 9.71Ask 2.59Spread

Pre-market

Jul 31, 2026 8:51:30 AM EDT

8.81USD+8.498%(+0.69)0

After-hours

Aug 4, 2026 4:00:30 PM EDT

8.49USD+0.059%(+0.01)88,521

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Jan 21, 2028

ITM/OTM for Jan 21, 2028View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
9	222	22	6

PRTA Jan 21, 2028 Exp. - Volume by Strike

Puts

Calls

PRTA Jan 21, 2028 Exp. - Open Interest by Strike

Puts

Calls

PRTA Jan 21, 2028 Exp. - Max Pain @ $12.00

Puts

Calls

PRTA Jan 21, 2028 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
20 C	0.95	-22.76%	1	134	07-16	PRTA280121C00020000
17 C	2.12	-15.20%	2	1	10-17	PRTA280121C00017000
15 C	2.32	-22.67%	6	83	04-08	PRTA280121C00015000
12 C	2.50	0%	2	2	12-19	PRTA280121C00012000
10 C	2.95	-27.16%	1	2	07-21	PRTA280121C00010000
7 C	5.44	+67.38%	1	4	06-29	PRTA280121C00007000
5 C	3.88	-13.78%	3	4	03-20	PRTA280121C00005000
3 C	8.35	0%	1	1	11-04	PRTA280121C00003000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
20 P	0	0%	0			PRTA280121P00020000
17 P	0	0%	0			PRTA280121P00017000
15 P	6.44	0%	1	1	01-05	PRTA280121P00015000
12 P	4.40	-6.38%	11	19	06-22	PRTA280121P00012000
10 P	4.00	+26.58%	2	2	02-03	PRTA280121P00010000
7 P	1.70	+8.97%	4	6	02-13	PRTA280121P00007000
5 P	0	0%	0			PRTA280121P00005000
3 P	0	0%	0			PRTA280121P00003000

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