CRBU

Caribou Biosciences, Inc.

Company with tickers: CRBU

CIK

1619856

CUSIP

142038108

Shares Outstanding

99,180,575

13F Activity (30d)

119 filings 118 filers

Short Volume (Last 90 Days)

Date	Short Volume	Short Exempt	Total Volume	Short %
2026-05-28	135,366	0	585,821	23.1%
2026-05-27	527,687	506	1,513,615	34.9%
2026-05-26	248,268	6,750	804,063	30.9%
2026-05-22	230,637	4,318	762,375	30.3%
2026-05-21	394,101	5,677	708,570	55.6%
2026-05-20	238,366	1,418	792,849	30.1%
2026-05-19	517,790	1,600	802,395	64.5%
2026-05-18	546,865	16,343	951,096	57.5%
2026-05-15	251,869	25	730,575	34.5%
2026-05-14	454,192	2,490	1,310,542	34.7%
2026-05-13	183,982	0	747,542	24.6%
2026-05-12	282,481	0	938,882	30.1%
2026-05-11	277,576	5,385	953,782	29.1%
2026-05-08	74,011	200	496,688	14.9%
2026-05-07	188,327	3,179	770,119	24.5%
2026-05-06	83,487	0	523,689	15.9%
2026-05-05	218,707	832	598,591	36.5%
2026-05-04	160,924	2,310	712,217	22.6%
2026-05-01	169,846	100	669,154	25.4%
2026-04-30	175,904	0	554,585	31.7%
2026-04-29	197,573	1,247	645,166	30.6%
2026-04-28	129,690	0	391,400	33.1%
2026-04-27	231,895	594	666,153	34.8%
2026-04-24	232,543	3,319	764,091	30.4%
2026-04-23	215,778	1,066	781,446	27.6%
2026-04-22	143,768	855	770,976	18.6%
2026-04-21	263,873	767	1,019,988	25.9%
2026-04-20	326,292	2,497	1,147,194	28.4%
2026-04-17	137,739	820	848,197	16.2%
2026-04-16	272,515	4,051	1,061,310	25.7%
2026-04-15	299,566	0	928,329	32.3%
2026-04-14	398,028	1,200	1,581,968	25.2%
2026-04-13	124,247	1,393	660,736	18.8%
2026-04-10	90,030	101	262,651	34.3%
2026-04-09	182,312	5,200	503,983	36.2%
2026-04-08	186,088	1,120	493,619	37.7%
2026-04-07	254,492	4,590	449,630	56.6%
2026-04-06	125,911	500	276,707	45.5%