VSTM

Verastem, Inc.

Company with tickers: VSTM

CIK

1526119

CUSIP

92337C203

Shares Outstanding

87,873,639

13F Activity (30d)

119 filings 116 filers

Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.

Short Squeeze Score

92/100

Short interest 24.1% of shares — P99 Days to cover 10.1 — P90 Short-volume trend +12.3% — P87

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-05-29). Equal-weight mean of the available factors.

1M 3M 6M 1Y 5Y All

Short Interest History

Settlement Date	Current Position	Previous Position	Change	Avg Daily Volume	Days to Cover
2026-05-29	21,213,623	17,870,249	+3,343,374	2,094,874	10.13
2026-05-15	17,870,249	17,523,588	+346,661	2,555,439	6.99
2026-04-30	17,523,588	17,417,758	+105,830	1,996,507	8.78
2026-04-15	17,417,758	16,365,830	+1,051,928	1,934,943	9.00
2026-03-31	16,365,830	17,851,179	-1,485,349	2,695,987	6.07
2026-03-13	17,851,179	17,095,624	+755,555	1,696,365	10.52
2026-02-27	17,095,624	18,052,448	-956,824	1,263,042	13.54
2026-02-13	18,052,448	16,459,027	+1,593,421	1,708,619	10.57
2026-01-30	16,459,027	17,115,556	-656,529	1,639,313	10.04
2026-01-15	17,115,556	17,017,419	+98,137	2,383,161	7.18
2025-12-31	17,017,419	16,721,345	+296,074	1,829,230	9.30
2025-12-15	16,721,345	18,393,487	-1,672,142	1,556,501	10.74
2025-11-28	18,393,487	19,141,071	-747,584	2,851,226	6.45
2025-11-14	19,141,071	17,632,734	+1,508,337	2,664,653	7.18
2025-10-31	17,632,734	18,094,970	-462,236	2,640,714	6.68
2025-10-15	18,094,970	17,472,645	+622,325	1,737,883	10.41
2025-09-30	17,472,645	16,820,046	+652,599	1,807,236	9.67
2025-09-15	16,820,046	15,964,999	+855,047	2,500,859	6.73
2025-08-29	15,964,999	15,961,742	+3,257	2,634,522	6.06
2025-08-15	15,961,742	17,053,705	-1,091,963	3,070,122	5.20
2025-07-31	17,053,705	18,107,601	-1,053,896	2,709,984	6.29
2025-07-15	18,107,601	15,748,949	+2,358,652	2,127,922	8.51
2025-06-30	15,748,949	12,182,979	+3,565,970	3,013,038	5.23
2025-06-13	12,182,979	13,178,438	-995,459	2,401,234	5.07

Showing 1–24 of 24 settlements