ALNY · Alnylam Pharmaceuticals, Inc. · Short Volume

$165.04 +8.39 (+5.36%) At close · Nov 13 Play latest call Q3 2026 earnings call transcript

Nasdaq-100 member Russell 1000 member Rebalance outlook locked

Market Cap

$22.11B

133.94M

Volume · Nov 13 3.59M Avg daily vol (3M) 2.04M

Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.

Pull daily short volume through the short interest API or MCP →

1M 3M 6M 1Y 5Y All

Short Volume

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-11-13	346,611	0	1,501,032	23.1%
2026-11-12	495,599	548	1,582,636	31.3%
2026-11-11	140,514	600	1,483,850	9.5%
2026-11-10	247,041	5	959,040	25.8%
2026-11-09	483,610	459	1,471,101	32.9%
2026-11-06	247,189	200	1,286,779	19.2%
2026-11-05	434,239	612	1,392,820	31.2%
2026-11-04	361,390	92	1,436,793	25.2%
2026-11-03	304,180	23	1,669,422	18.2%
2026-11-02	348,384	418	2,179,117	16.0%
2026-10-30	241,646	26,016	2,805,687	8.6%
2026-10-29	1,061,500	75,340	5,873,574	18.1%
2026-10-28	286,543	529	822,464	34.8%
2026-10-27	339,140	26	766,694	44.2%
2026-10-26	175,720	434	611,589	28.7%
2026-10-23	184,471	159	404,105	45.6%
2026-10-22	310,767	0	977,734	31.8%
2026-10-21	237,644	4	481,549	49.3%
2026-10-20	307,302	317	665,259	46.2%
2026-10-19	183,245	79	561,774	32.6%
2026-10-16	246,061	82	607,486	40.5%
2026-10-15	163,066	84	542,922	30.0%
2026-10-14	113,898	395	442,290	25.8%
2026-10-13	169,592	2,469	492,864	34.4%
2026-10-12	202,029	2,177	413,823	48.8%
2026-10-09	183,468	0	402,338	45.6%
2026-10-08	310,150	8,040	700,503	44.3%
2026-10-07	213,235	0	439,174	48.6%
2026-10-06	279,276	2,191	645,140	43.3%
2026-10-05	264,652	71	542,764	48.8%
2026-10-02	328,543	7	618,398	53.1%
2026-10-01	578,562	126	978,710	59.1%
2026-09-30	184,306	2,400	345,493	53.3%
2026-09-29	229,270	0	311,195	73.7%
2026-09-28	316,677	0	483,154	65.5%
2026-09-25	297,784	66	409,848	72.7%
2026-09-24	291,060	320	388,051	75.0%
2026-09-23	327,336	2	482,095	67.9%
2026-09-22	341,915	1	431,690	79.2%
2026-09-21	388,484	0	504,344	77.0%
2026-09-18	460,290	0	626,322	73.5%
2026-09-17	270,101	3	359,913	75.0%
2026-09-16	215,545	1,642	348,145	61.9%
2026-09-15	286,149	0	636,009	45.0%
2026-09-14	200,068	45	282,017	70.9%
2026-09-11	334,820	0	498,473	67.2%
2026-09-10	478,400	11,931	646,298	74.0%
2026-09-09	457,716	51	613,920	74.6%
2026-09-08	694,201	38,876	834,033	83.2%
2026-09-04	526,873	0	672,818	78.3%

Showing 1–50 of 64 days

Key facts CIK 1178670 CUSIP 02043Q107 13F (30d) 589 filings 542 filers Visit website Investor relations