Stocks · Health care · Biological Products, (No Diagnostic Substances)

Caribou Biosciences, Inc.

CRBU Clue Score27
United States Fiscal year ends December CIK 0001619856 Results filed 5 Nov 2026

What the insiders did Net buying

By person

11 insiders · 41 transactions
Insider
Role
Bought
Sold
Net
Holding
Of company
Worth
Change
Steven Kanner
Chief Scientific Officer
$40.58K (3)
$490.03K (2) scheduled
−$449.46K
431,556
0.4025%
$832.90K
+283.1%
Ryan Fischesser
VP of Finance and Controller
$37.31K (4)
$107.96K (1) scheduled
−$70.65K
118,854
0.1109%
$229.39K
+51.4%
Syed Ali-aamir Rizvi
Chief Medical Officer
—
$35.51K (1)
−$35.51K
59,373
0.0554%
$114.59K
+1,087%
Sriram Ryali
Chief Financial Officer
$24.65K (1)
—
+$24.65K
72,360
0.0675%
$139.65K
—
Barbara G McClung
Chief Legal Officer
$41.28K (4)
$18.41K (2)
+$22.87K
481,564
0.4492%
$929.42K
+44.3%
Rachel E. Haurwitz
President and CEO
$20.40K (1)
—
+$20.40K
3,816,545
3.56%
$7.37M
+13.9%
Ruhi Ahmad Khan
Chief Business Officer
—
$18.41K (2)
−$18.41K
104,998
0.0979%
$202.65K
—
Timothy P Kelly
Chief Technology Officer
—
$18.19K (2)
−$18.19K
73,125
0.0682%
$141.13K
—
Tina M. Albertson
Chief Medical Officer
—
$2.09K (1) scheduled
−$2.09K
68,523
0.0639%
$132.25K
—
Fmr LLC entity
See Remark 1
—
—
—
3,323,284
3.10%
$6.41M
—
Jason O'Byrne
Chief Financial Officer
—
—
—
59,224
0.0552%
$114.30K
+3,037%