InsiderTrades

KRRO Korro Bio, Inc.

Nasdaq · SEC CIK 1703647 · EDGAR

Bought, last 12 months
$20.79M
11 purchases by 10 insiders
Sold, last 12 months
$5.70M
15 sales by 6 insiders
Filings on record
195
since 2021-07-06, latest 2026-09-15 16:15
Buying vs selling by month open-market trades, last 24 months
BoughtSold

Most active insiders, 12 months

InsiderTitleBoughtSold
FORMELA JEAN FRANCOISDir —$5.16M
Yang Rick10% $2.30M—
New Enterprise Associates 17, L.P.10% $2.30M—
Chang Carmen10% $2.30M—
Makhzoumi Mohamad10% $2.30M—
Florence Anthony A. Jr.10% $2.30M—
Walker Paul Edward10% $2.30M—
Mathers Edward T10% $2.30M—
BASKETT FOREST10% $2.30M—
SANDELL SCOTT D10% $2.30M—

Transactions 157

Type
Reset
X Filed Traded Ticker Insider Title Type Price Qty Owned ΔOwn Value
MTI 2026-09-15 16:15 2026-09-11+ KRRO FORMELA JEAN FRANCOIS Dir S - Sale $14.09 -48.7K 132.7K -27% -$686.2K
T 2026-09-14 16:05 2026-09-11 KRRO Dolan Oliver SVP, Fin S - Sale $13.72 -5 16.2K -0.0% -$68.58
MT 2026-09-10 16:05 2026-09-08+ KRRO Dolan Oliver SVP, Fin S - Sale $13.51 -7,353 16.2K -31% -$99.4K
MTI 2026-08-28 16:30 2026-08-26 KRRO FORMELA JEAN FRANCOIS Dir S - Sale $13.96 -300 141.0K -0.2% -$4,188
MTI 2026-08-21 16:20 2026-08-19 KRRO FORMELA JEAN FRANCOIS Dir S - Sale $14.00 -28.5K 141.1K -17% -$398.6K
MTI 2026-08-13 17:04 2026-08-11 KRRO FORMELA JEAN FRANCOIS Dir S - Sale $13.96 -2,143 145.9K -1% -$29.9K
MI 2026-08-13 09:54 2026-08-06+ KRRO Lynx1 Capital Management LP 10% P - Purchase $11.79 +6,684 1.54M +0.4% +$78.8K
2026-08-05 16:05 2026-08-04 KRRO Aiyar Ram Pres, CEO, Dir S - Sale $10.84 -5,802 69.0K -8% -$62.9K
2026-07-17 07:14 2026-07-15 KRRO Vincent Loic A CSO A - Grant $0.00 +7,500 25.8K +41% $0
2026-07-17 07:11 2026-07-15 KRRO Dolan Oliver SVP, Fin A - Grant $0.00 +5,500 23.6K +30% $0
2026-07-17 07:08 2026-07-15 KRRO Cerio Jeffrey GC A - Grant $0.00 +6,500 41.8K +18% $0
2026-07-17 07:05 2026-07-15 KRRO Chappell Todd COO A - Grant $0.00 +7,500 24.5K +44% $0
MTI 2026-07-07 18:04 2026-07-02+ KRRO FORMELA JEAN FRANCOIS Dir S - Sale $14.02 -110.0K 146.3K -43% -$1.54M
MTI 2026-06-24 20:09 2026-06-22+ KRRO FORMELA JEAN FRANCOIS Dir S - Sale $14.34 -171.4K 169.6K -50% -$2.46M
2026-06-17 16:14 2026-06-16 KRRO Chappell Todd COO S - Sale $10.83 -3,168 17.0K -16% -$34.3K
2026-06-17 16:11 2026-06-16 KRRO Vincent Loic A CSO S - Sale $10.83 -3,418 18.3K -16% -$37.0K
2026-06-17 16:08 2026-06-16 KRRO Cerio Jeffrey GC S - Sale $10.83 -6,609 35.3K -16% -$71.6K
2026-06-17 16:05 2026-06-16 KRRO Dolan Oliver SVP, Fin S - Sale $10.83 -3,383 18.1K -16% -$36.6K
2026-06-02 07:00 2026-05-29 KRRO Aiyar Ram Pres, CEO, Dir S - Sale $12.98 -15.2K 74.8K -17% -$196.7K
MTI 2026-06-01 17:35 2026-05-28 KRRO FORMELA JEAN FRANCOIS Dir S - Sale $13.95 -2,860 194.7K -1% -$39.9K
2026-05-28 17:07 2026-05-26 KRRO Aiyar Ram Pres, CEO, Dir A - Grant $12.33 +50.0K 90.0K +125% +$616.5K
I 2026-04-02 12:00 2026-03-31 KRRO Lynx1 Capital Management LP 10% P - Purchase $10.60 +520 1.54M +0.0% +$5,512
DI 2026-03-12 2026-03-10 KRRO Florence Anthony A. Jr. 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO Mathers Edward T 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO SANDELL SCOTT D 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO Walker Paul Edward 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO BASKETT FOREST 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
D 2026-03-12 2026-03-10 KRRO New Enterprise Associates 17, L.P. 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO Yang Rick 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO Chang Carmen 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO Makhzoumi Mohamad 10% P - Purchase $11.11 +207.1K 1.30M +19% +$2.30M
DI 2026-03-12 2026-03-10 KRRO Behbahani Ali Dir, 10% A - Grant $11.11 +207.1K 1.30M +19% +$2.30M
D 2026-02-03 2026-02-02 KRRO Aiyar Ram Pres, CEO, Dir A - Grant $0.00 +40.0K 40.0K New $0
2025-12-16 2025-12-15 KRRO Cerio Jeffrey GC A - Grant $0.00 +41.9K 41.9K New $0
2025-12-16 2025-12-15 KRRO Chappell Todd COO A - Grant $0.00 +20.1K 20.1K New $0
2025-12-16 2025-12-15 KRRO Vincent Loic A CSO A - Grant $0.00 +21.7K 21.7K New $0
2025-12-16 2025-12-15 KRRO Dolan Oliver SVP, Fin A - Grant $0.00 +21.5K 21.5K New $0
DT 2024-11-12 2024-11-11 KRRO Agarwal Vineet CFO S - Sale+OE $70.00 -800 0 -100% -$56.0K
DT 2024-11-12 2024-11-11 KRRO Agarwal Vineet CFO M - OptEx $11.68 +800 800 New +$9,344
DMT 2024-10-18 2024-10-17 KRRO Agarwal Vineet CFO S - Sale+OE $78.26 -10.2K 7,914 -56% -$799.5K
DMT 2024-10-18 2024-10-17 KRRO Agarwal Vineet CFO M - OptEx $11.99 +10.2K 9,263 New +$122.5K
2024-04-24 2024-04-22 KRRO NEA Partners 17, L.P. 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Behbahani Ali Dir, 10% A - Grant $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Walker Paul Edward 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Yang Rick 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO SANDELL SCOTT D 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Chang Carmen 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Florence Anthony A. Jr. 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Makhzoumi Mohamad 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO Mathers Edward T 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
I 2024-04-24 2024-04-22 KRRO BASKETT FOREST 10% P - Purchase $56.00 +17.9K 1.09M +2% +$1000.0K
2024-04-23 2024-04-22 KRRO Atlas Venture Associates Opportunity II, LP 10% P - Purchase $56.00 +17.9K 195.1K +10% +$1000.0K
I 2024-04-23 2024-04-22 KRRO FORMELA JEAN FRANCOIS Dir A - Grant $56.00 +17.9K 195.1K +10% +$1000.0K
M 2023-11-27 2023-11-22 KRRO Lucchino David L. Dir S - Sale $37.69 -1,156 22.1K -5% -$43.6K
D 2023-11-22 2023-11-03 KRRO Lucchino David L. Dir M - OptEx — +5,600 18.3K +44% —
DM 2023-11-22 2023-11-10 KRRO Lucchino David L. Dir S - Sale+OE $41.97 -968 23.3K -4% -$40.6K
D 2023-11-22 2023-11-03 KRRO Lucchino David L. Dir A - Grant — +6,000 24.3K +33% —
DI 2023-11-07 2023-11-03 KRRO Behbahani Ali Dir, 10% A - Grant — +1.07M 1.07M New —
DMI 2023-11-07 2023-11-03 KRRO FORMELA JEAN FRANCOIS Dir A - Grant — +1.12M 942.1K New —
D 2023-11-07 2023-11-03 KRRO Bermingham Nessan Dir A - Grant — +35.1K 35.1K New —
DI 2023-11-07 2023-11-03 KRRO Aiyar Ram Pres, CEO, Dir A - Grant — +4,613 4,613 New —
M 2023-08-22 2023-08-18+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.5789 -464 48.7K -0.9% -$268.62
M 2023-08-22 2023-08-18+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.5484 -5,922 636.8K -0.9% -$3,248
M 2023-08-18 2023-08-16+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.6452 -464 48.9K -0.9% -$299.38
M 2023-08-18 2023-08-16+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.6403 -5,628 642.4K -0.9% -$3,604
M 2023-08-16 2023-08-14+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.6491 -5,510 645.3K -0.8% -$3,576
M 2023-08-16 2023-08-14+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.6449 -466 49.4K -0.9% -$300.52
M 2023-08-14 2023-08-10+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.6751 -5,523 650.8K -0.8% -$3,728
M 2023-08-14 2023-08-10+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.64 -487 49.9K -1.0% -$311.68
M 2023-08-10 2023-08-08+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.665 -479 50.6K -0.9% -$318.55
M 2023-08-10 2023-08-08+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.68 -5,608 656.3K -0.8% -$3,814
M 2023-08-09 2023-08-04+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.6847 -5,407 661.9K -0.8% -$3,702
M 2023-08-09 2023-08-04+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.6803 -455 51.1K -0.9% -$309.55
M 2023-08-04 2023-08-02+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.5556 -5,266 670.0K -0.8% -$2,926
M 2023-08-04 2023-08-02+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.5251 -463 51.3K -0.9% -$243.11
M 2023-08-02 2023-07-31+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.4949 -5,475 672.6K -0.8% -$2,710
M 2023-08-02 2023-07-31+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.4897 -460 51.7K -0.9% -$225.24
M 2023-07-31 2023-07-27+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.5003 -450 52.4K -0.9% -$225.12
M 2023-07-31 2023-07-27+ KRRO Loose Christopher R. CSO S - Sale $0.4954 -2,717 185.0K -1% -$1,346
M 2023-07-31 2023-07-27+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.4905 -5,438 680.7K -0.8% -$2,668
MT 2023-07-27 2023-07-25+ KRRO Loose Christopher R. CSO S - Sale $0.5049 -2,719 187.7K -1% -$1,373
MT 2023-07-27 2023-07-25+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.5146 -456 52.9K -0.9% -$234.66
MT 2023-07-27 2023-07-25+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.5096 -5,412 686.1K -0.8% -$2,758
MT 2023-07-25 2023-07-21+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.5844 -457 53.1K -0.9% -$267.07
MT 2023-07-25 2023-07-21+ KRRO Loose Christopher R. CSO S - Sale $0.5737 -2,771 189.1K -1% -$1,590
MT 2023-07-25 2023-07-21+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.5736 -5,550 688.9K -0.8% -$3,183
M 2023-07-21 2023-07-19+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.635 -457 53.6K -0.8% -$290.20
M 2023-07-21 2023-07-19+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.6449 -5,356 694.5K -0.8% -$3,454
M 2023-07-21 2023-07-19+ KRRO Loose Christopher R. CSO S - Sale $0.645 -2,696 191.9K -1% -$1,739
M 2023-07-19 2023-07-17+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.6045 -493 54.0K -0.9% -$298.04
M 2023-07-19 2023-07-17+ KRRO Loose Christopher R. CSO S - Sale $0.6137 -2,899 194.6K -1% -$1,779
M 2023-07-19 2023-07-17+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.618 -5,743 702.8K -0.8% -$3,549
M 2023-07-17 2023-07-13+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.4729 -375 54.7K -0.7% -$177.33
M 2023-07-17 2023-07-13+ KRRO Loose Christopher R. CSO S - Sale $0.4711 -2,235 197.5K -1% -$1,053
M 2023-07-17 2023-07-13+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.4714 -4,461 705.6K -0.6% -$2,103
M 2023-07-13 2023-07-11+ KRRO Mitrano Richard J. VP Fin, Ops S - Sale $0.3847 -448 54.9K -0.8% -$172.36
M 2023-07-13 2023-07-11+ KRRO Lucchino David L. Pres, CEO, Dir S - Sale $0.3798 -5,380 710.0K -0.8% -$2,044
M 2023-07-13 2023-07-11+ KRRO Loose Christopher R. CSO S - Sale $0.3799 -2,698 199.7K -1% -$1,025
DAT 2023-07-12 2023-07-04 KRRO Mitrano Richard J. VP Fin, Ops M - OptEx — +25.0K 56.0K +81% —
DAT 2023-07-12 2023-07-06 KRRO Mitrano Richard J. VP Fin, Ops S - Sale+OE $0.35 -224 55.8K -0.4% -$78.40

Purchase Sale Sale after option exercise All abbreviations