GERN

Geron Corp

Company with tickers: GERN

Market Cap

$846.81M

Shares Outstanding

641,520,974

CIK

886744

CUSIP

374163103

13F Activity (30d)

2 filings 1 filers

Website

Visit website

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

81/100

Short interest 11.7% of shares — P91 Days to cover 5.9 — P78 Short-volume trend +7.7% — P75

Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-15). 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
2026-06-15	74,846,440	71,765,644	+3,080,796	12,711,859	5.89
2026-05-29	71,765,644	70,153,512	+1,612,132	9,429,850	7.61
2026-05-15	70,153,512	75,696,666	-5,543,154	18,587,089	3.77
2026-04-30	75,696,666	82,155,104	-6,458,438	13,720,232	5.52
2026-04-15	82,155,104	76,666,335	+5,488,769	23,028,069	3.57
2026-03-31	76,666,335	63,223,778	+13,442,557	18,369,873	4.17
2026-03-13	63,223,778	60,621,875	+2,601,903	18,339,043	3.45
2026-02-27	60,621,875	65,027,742	-4,405,867	20,830,115	2.91
2026-02-13	65,027,742	58,456,685	+6,571,057	15,111,750	4.30
2026-01-30	58,456,685	70,452,831	-11,996,146	12,596,651	4.64
2026-01-15	70,452,831	71,256,970	-804,139	9,453,151	7.45
2025-12-31	71,256,970	76,015,555	-4,758,585	6,138,024	11.61
2025-12-15	76,015,555	77,376,655	-1,361,100	7,413,805	10.25
2025-11-28	77,376,655	77,603,709	-227,054	7,018,685	11.02
2025-11-14	77,603,709	85,259,940	-7,656,231	11,097,819	6.99
2025-10-31	85,259,940	86,917,382	-1,657,442	6,111,662	13.95
2025-10-15	86,917,382	89,775,024	-2,857,642	8,282,033	10.49
2025-09-30	89,775,024	92,130,954	-2,355,930	7,460,130	12.03
2025-09-15	92,130,954	88,536,749	+3,594,205	6,089,206	15.13
2025-08-29	88,536,749	86,667,584	+1,869,165	5,811,216	15.24
2025-08-15	86,667,584	77,120,335	+9,547,249	13,230,659	6.55
2025-07-31	77,120,335	67,960,999	+9,159,336	9,639,714	8.00
2025-07-15	67,960,999	62,985,757	+4,975,242	8,528,797	7.97
2025-06-30	62,985,757	65,226,271	-2,240,514	10,273,277	6.13

Showing 1–24 of 24 settlements