| Suma M. Krishnan |
KRYS |
Common Stock |
Sale |
-1.75% |
$6,580,270 |
$263.21 |
-25,000 |
1,403,155 |
04 Mar 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Common Stock |
Sale |
-1.67% |
$6,579,164 |
$263.17 |
-25,000 |
1,475,253 |
04 Mar 2026 |
Direct |
| Kathryn Romano |
KRYS |
Common Stock |
Sale |
-3.24% |
$200,700 |
$267.60 |
-750 |
22,366 |
02 Mar 2026 |
Direct |
| Kathryn Romano |
KRYS |
Common Stock |
Tax liability |
-13.3% |
|
|
-3,502 |
22,806 |
27 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Common Stock |
Options Exercise |
44.7% |
|
|
8,050 |
26,068 |
27 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Restricted Stock Units |
Award |
|
|
|
5,442 |
5,442 |
27 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Stock Option (Right to Buy) |
Award |
|
|
|
13,575 |
13,575 |
27 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Restricted Stock Units |
Options Exercise |
-25% |
|
|
-550 |
1,650 |
27 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Performance Stock Units |
Options Exercise |
-100% |
|
|
-7,500 |
0 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Common Stock |
Tax liability |
-1.23% |
|
|
-18,528 |
1,482,825 |
27 Feb 2026 |
By Spouse |
| Suma M. Krishnan |
KRYS |
Common Stock |
Options Exercise |
2.77% |
|
|
40,725 |
1,509,075 |
27 Feb 2026 |
By Spouse |
| Suma M. Krishnan |
KRYS |
Common Stock |
Tax liability |
-0.84% |
|
|
-12,056 |
1,425,975 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Common Stock |
Options Exercise |
1.88% |
|
|
26,500 |
1,436,211 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Performance Stock Units |
Award |
|
|
|
43,536 |
43,536 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Restricted Stock Units |
Award |
|
|
|
7,256 |
7,256 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Stock Option (Right to Buy) |
Award |
|
|
|
18,100 |
18,100 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Restricted Stock Units |
Options Exercise |
-25% |
|
|
-4,000 |
12,000 |
27 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Performance Stock Units |
Options Exercise |
-100% |
|
|
-22,500 |
0 |
27 Feb 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Common Stock |
Tax liability |
-0.84% |
|
|
-12,056 |
1,425,975 |
27 Feb 2026 |
By Spouse |
| Krish S. Krishnan |
KRYS |
Common Stock |
Options Exercise |
1.88% |
|
|
26,500 |
1,436,211 |
27 Feb 2026 |
By Spouse |
| Krish S. Krishnan |
KRYS |
Common Stock |
Tax liability |
-1.23% |
|
|
-18,528 |
1,482,825 |
27 Feb 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Common Stock |
Options Exercise |
2.77% |
|
|
40,725 |
1,509,075 |
27 Feb 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Restricted Stock Units |
Award |
|
|
|
18,140 |
18,140 |
27 Feb 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Stock Option (Right to Buy) |
Award |
|
|
|
45,249 |
45,249 |
27 Feb 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Performance Stock Units |
Options Exercise |
-100% |
|
|
-26,250 |
0 |
27 Feb 2026 |
Direct |
| Krish S. Krishnan |
KRYS |
Restricted Stock Units |
Options Exercise |
-45.7% |
|
|
-14,475 |
17,175 |
27 Feb 2026 |
Direct |
| Daniel Janney |
KRYS |
Common Stock |
Sale |
-13.9% |
$3,252,824 |
$275.59 |
-11,803 |
73,293 |
27 Feb 2026 |
Directly beneficially owned by Alta Bioequities, L.P. |
| Daniel Janney |
KRYS |
Common Stock |
Sale |
-8.34% |
$2,133,679 |
$275.63 |
-7,741 |
85,096 |
26 Feb 2026 |
Directly beneficially owned by Alta Bioequities, L.P. |
| Daniel Janney |
KRYS |
Common Stock |
Sale |
-0.75% |
$192,500 |
$275.00 |
-700 |
92,837 |
25 Feb 2026 |
Directly beneficially owned by Alta Bioequities, L.P. |
| Daniel Janney |
KRYS |
Common Stock |
Sale |
-12.9% |
$3,709,850 |
$268.34 |
-13,825 |
93,537 |
24 Feb 2026 |
Directly beneficially owned by Alta Bioequities, L.P. |
| Daniel Janney |
KRYS |
Common Stock |
Sale |
-100% |
$10,113,354 |
$266.88 |
-37,895 |
0 |
24 Feb 2026 |
Direct |
| Daniel Janney |
KRYS |
Common Stock |
Options Exercise |
|
|
|
37,895 |
37,895 |
24 Feb 2026 |
Direct |
| Daniel Janney |
KRYS |
Stock Option (Right to Buy) |
Options Exercise |
-100% |
|
|
-37,895 |
0 |
24 Feb 2026 |
Direct |
| Dino A. Rossi |
KRYS |
Common Stock |
Sale |
-19.4% |
$4,953,694 |
$261.41 |
-18,950 |
78,691 |
19 Feb 2026 |
Direct |
| Dino A. Rossi |
KRYS |
Common Stock |
Options Exercise |
24.1% |
|
|
18,950 |
97,641 |
19 Feb 2026 |
Direct |
| Dino A. Rossi |
KRYS |
Stock Option (Right to Buy) |
Options Exercise |
-100% |
|
|
-18,950 |
0 |
19 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Common Stock |
Gift |
-3.88% |
|
|
-750 |
18,568 |
09 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Common Stock |
Sale |
-39.3% |
$3,401,705 |
$272.14 |
-12,500 |
19,318 |
09 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Common Stock |
Options Exercise |
64.7% |
|
|
12,500 |
31,818 |
09 Feb 2026 |
Direct |
| Kathryn Romano |
KRYS |
Stock Option (Right to Buy) |
Options Exercise |
-50% |
|
|
-12,500 |
12,500 |
09 Feb 2026 |
Direct |
| Suma M. Krishnan |
KRYS |
Common Stock |
Gift |
-0.34% |
|
|
-5,000 |
1,478,056 |
05 Dec 2025 |
By Spouse |
| Krish S. Krishnan |
KRYS |
Common Stock |
Gift |
-0.34% |
|
|
-5,000 |
1,478,056 |
05 Dec 2025 |
Direct |
| Suma M. Krishnan |
KRYS |
Common Stock |
Sale |
-1.66% |
$5,503,395 |
$220.14 |
-25,000 |
1,483,056 |
04 Dec 2025 |
By Spouse |
| Suma M. Krishnan |
KRYS |
Common Stock |
Sale |
-1.74% |
$5,503,938 |
$220.16 |
-25,000 |
1,413,711 |
04 Dec 2025 |
Direct |
| Krish S. Krishnan |
KRYS |
Common Stock |
Sale |
-1.74% |
$5,503,938 |
$220.16 |
-25,000 |
1,413,711 |
04 Dec 2025 |
By Spouse |
| Krish S. Krishnan |
KRYS |
Common Stock |
Sale |
-1.66% |
$5,503,509 |
$220.14 |
-25,000 |
1,483,056 |
04 Dec 2025 |
Direct |
| Suma M. Krishnan |
KRYS |
Common Stock |
Sale |
-0.09% |
$208,350 |
$150.00 |
-1,389 |
1,508,056 |
16 Jul 2025 |
By Spouse |
| Suma M. Krishnan |
KRYS |
Common Stock |
Sale |
-0.11% |
$229,350 |
$150.00 |
-1,529 |
1,438,711 |
16 Jul 2025 |
Direct |
| Krish S. Krishnan |
KRYS |
Common Stock |
Sale |
-0.11% |
$229,350 |
$150.00 |
-1,529 |
1,438,711 |
16 Jul 2025 |
By Spouse |
| Krish S. Krishnan |
KRYS |
Common Stock |
Sale |
-0.09% |
$208,350 |
$150.00 |
-1,389 |
1,508,056 |
16 Jul 2025 |
Direct |