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ALNY
Alnylam Pharmaceuticals, Inc.
stock NASDAQ

At Close

Aug 20, 2026 3:59:57 PM EDT

229.30USD-5.484%(-13.31)1,686,053

212.80Bid 255.91Ask 43.11Spread

Pre-market

Aug 20, 2026 9:19:30 AM EDT

241.13USD-0.610%(-1.48)515

After-hours

Aug 20, 2026 4:00:30 PM EDT

228.76USD-0.238%(-0.54)187,141

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Dec 18, 2026 Jan 15, 2027 Mar 19, 2027 Dec 17, 2027

ITM/OTM for Dec 17, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
453	1,071	878	395

ALNY Dec 17, 2027 Exp. - Volume by Strike

Puts

Calls

ALNY Dec 17, 2027 Exp. - Open Interest by Strike

Puts

Calls

ALNY Dec 17, 2027 Exp. - Max Pain @ $280.00

Puts

Calls

ALNY Dec 17, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
520 C	5.80	-61.33%	1	36	07-30	ALNY271217C00520000
500 C	0	0%	0			ALNY271217C00500000
490 C	0	0%	0			ALNY271217C00490000
480 C	4.13	0%	3	2	07-30	ALNY271217C00480000
470 C	4.55	0%	1	1	07-30	ALNY271217C00470000
460 C	7.50	0%	1	1	08-11	ALNY271217C00460000
450 C	8.50	+27.63%	2	59	08-05	ALNY271217C00450000
440 C	34.00	+19.63%	1	31	06-04	ALNY271217C00440000
430 C	10.00	+7.53%	1	1	08-14	ALNY271217C00430000
420 C	38.67	0%	2	2	05-28	ALNY271217C00420000
410 C	41.32	0%	2	2	05-28	ALNY271217C00410000
400 C	29.00	-15.94%	12	14	07-20	ALNY271217C00400000
390 C	40.20	0%	12	5	05-19	ALNY271217C00390000
380 C	0	0%	0			ALNY271217C00380000
370 C	11.94	-65.09%	1	252	07-30	ALNY271217C00370000
360 C	66.50	+11.76%	1	301	07-07	ALNY271217C00360000
350 C	14.46	-1.90%	3	5	07-31	ALNY271217C00350000
340 C	15.75	0%	6	3	07-30	ALNY271217C00340000
330 C	17.00	+3.72%	1	18	07-31	ALNY271217C00330000
320 C	26.60	+21.18%	5	20	08-05	ALNY271217C00320000
310 C	83.60	+5.82%	2	1	07-02	ALNY271217C00310000
300 C	27.00	-0.92%	4	231	08-14	ALNY271217C00300000
290 C	24.40	-66.34%	4	8	07-31	ALNY271217C00290000
280 C	73.70	-47.36%	2	4	07-13	ALNY271217C00280000
270 C	30.00	-63.64%	3	3	07-31	ALNY271217C00270000
260 C	40.00	-48.78%	5	12	08-04	ALNY271217C00260000
250 C	53.70	+22.05%	1	39	08-19	ALNY271217C00250000
240 C	48.00	0%	12	12	08-03	ALNY271217C00240000
230 C	63.10	+12.66%	1	8	08-19	ALNY271217C00230000
220 C	66.00	+8.20%	21	95	08-19	ALNY271217C00220000
210 C	73.00	+17.74%	11	17	08-19	ALNY271217C00210000
200 C	77.60	+15.82%	3	24	08-19	ALNY271217C00200000
195 C	0	0%	0			ALNY271217C00195000
190 C	67.00	+19.64%	6	3	08-03	ALNY271217C00190000
185 C	72.50	0%	2	2	08-04	ALNY271217C00185000
180 C	78.20	+5.68%	1	2	08-14	ALNY271217C00180000
175 C	0	0%	0			ALNY271217C00175000
170 C	83.21	+10.95%	1	5	08-12	ALNY271217C00170000
165 C	0	0%	0			ALNY271217C00165000
160 C	91.80	+3.15%	1	18	08-17	ALNY271217C00160000
155 C	0	0%	0			ALNY271217C00155000
150 C	99.00	+0.25%	1	287	08-17	ALNY271217C00150000
145 C	0	0%	0			ALNY271217C00145000
140 C	0	0%	0			ALNY271217C00140000
135 C	0	0%	0			ALNY271217C00135000
130 C	0	0%	0			ALNY271217C00130000
125 C	0	0%	0			ALNY271217C00125000
120 C	0	0%	0			ALNY271217C00120000
115 C	0	0%	0			ALNY271217C00115000
110 C	0	0%	0			ALNY271217C00110000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
520 P	0	0%	0			ALNY271217P00520000
500 P	0	0%	0			ALNY271217P00500000
490 P	0	0%	0			ALNY271217P00490000
480 P	0	0%	0			ALNY271217P00480000
470 P	0	0%	0			ALNY271217P00470000
460 P	0	0%	0			ALNY271217P00460000
450 P	0	0%	0			ALNY271217P00450000
440 P	0	0%	0			ALNY271217P00440000
430 P	0	0%	0			ALNY271217P00430000
420 P	0	0%	0			ALNY271217P00420000
410 P	137.64	0%	1	1	06-08	ALNY271217P00410000
400 P	0	0%	0			ALNY271217P00400000
390 P	187.88	+65.68%	1	2	07-30	ALNY271217P00390000
380 P	171.41	0%	1	1	07-30	ALNY271217P00380000
370 P	0	0%	0			ALNY271217P00370000
360 P	147.25	+50.26%	6	300	08-04	ALNY271217P00360000
350 P	91.25	0%	5	5	05-12	ALNY271217P00350000
340 P	80.33	0%	1	1	07-10	ALNY271217P00340000
330 P	121.00	-7.93%	6	19	08-04	ALNY271217P00330000
320 P	111.50	-8.40%	2	56	08-03	ALNY271217P00320000
310 P	113.90	+69.37%	6	8	07-30	ALNY271217P00310000
300 P	106.22	+73.87%	7	22	07-30	ALNY271217P00300000
290 P	88.00	-0.34%	5	36	08-10	ALNY271217P00290000
280 P	81.00	-2.29%	10	107	08-10	ALNY271217P00280000
270 P	69.31	-8.80%	5	42	08-12	ALNY271217P00270000
260 P	69.20	+0.87%	5	70	08-07	ALNY271217P00260000
250 P	62.70	+0.64%	5	63	08-07	ALNY271217P00250000
240 P	44.80	-8.53%	1	63	08-19	ALNY271217P00240000
230 P	46.48	-6.67%	5	82	08-12	ALNY271217P00230000
220 P	35.70	-11.85%	2	69	08-19	ALNY271217P00220000
210 P	38.30	-1.79%	2	113	08-11	ALNY271217P00210000
200 P	27.00	-13.46%	1	99	08-19	ALNY271217P00200000
195 P	38.50	+90.12%	1	10	07-30	ALNY271217P00195000
190 P	36.30	0%	5	5	07-30	ALNY271217P00190000
185 P	0	0%	0			ALNY271217P00185000
180 P	0	0%	0			ALNY271217P00180000
175 P	14.43	0%	1	1	07-13	ALNY271217P00175000
170 P	26.30	0%	6	6	07-30	ALNY271217P00170000
165 P	13.00	0%	2	2	06-29	ALNY271217P00165000
160 P	13.70	0%	1	1	06-12	ALNY271217P00160000
155 P	20.92	+57.53%	2	4	07-30	ALNY271217P00155000
150 P	18.40	+87.37%	53	56	07-30	ALNY271217P00150000
145 P	16.40	-6.29%	1	20	07-31	ALNY271217P00145000
140 P	13.10	-6.43%	3	6	08-04	ALNY271217P00140000
135 P	0	0%	0			ALNY271217P00135000
130 P	0	0%	0			ALNY271217P00130000
125 P	0	0%	0			ALNY271217P00125000
120 P	0	0%	0			ALNY271217P00120000
115 P	0	0%	0			ALNY271217P00115000
110 P	5.50	-6.78%	2	3	08-19	ALNY271217P00110000