| George Parmer |
AMST |
Common Stock |
Options Exercise |
14.7% |
|
|
41,322 |
323,060 |
07 Mar 2026 |
Direct |
| George Parmer |
AMST |
Restricted Stock Units |
Options Exercise |
-100% |
|
|
-41,322 |
0 |
07 Mar 2026 |
Direct |
| Barbie Brewer |
AMST |
Common Stock |
Options Exercise |
43.7% |
|
|
41,322 |
135,977 |
07 Mar 2026 |
Direct |
| Barbie Brewer |
AMST |
Restricted Stock Units |
Options Exercise |
-100% |
|
|
-41,322 |
0 |
07 Mar 2026 |
Direct |
| Gilbert S. Omenn |
AMST |
Common Stock |
Options Exercise |
40.4% |
|
|
41,322 |
143,699 |
07 Mar 2026 |
By Gilbert S. Omenn Revocable Trust |
| Gilbert S. Omenn |
AMST |
Restricted Stock Units |
Options Exercise |
-100% |
|
|
-41,322 |
0 |
07 Mar 2026 |
By Gilbert S. Omenn Revocable Trust |
| J. Michael Losh |
AMST |
Common Stock |
Options Exercise |
42.6% |
|
|
41,322 |
138,200 |
07 Mar 2026 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| J. Michael Losh |
AMST |
Restricted Stock Units |
Options Exercise |
-100% |
|
|
-41,322 |
0 |
07 Mar 2026 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| J. Michael Losh |
AMST |
Restricted Stock Units |
Award |
|
|
|
49,751 |
49,751 |
06 Feb 2026 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| Gilbert S. Omenn |
AMST |
Restricted Stock Units |
Award |
|
|
|
49,751 |
49,751 |
06 Feb 2026 |
By Gilbert S. Omenn Revocable Trust |
| George Parmer |
AMST |
Restricted Stock Units |
Award |
|
|
|
49,751 |
49,751 |
06 Feb 2026 |
Direct |
| Barbie Brewer |
AMST |
Restricted Stock Units |
Award |
|
|
|
49,751 |
49,751 |
06 Feb 2026 |
Direct |
| Gilbert S. Omenn |
AMST |
Restricted Stock Units |
Award |
10.2% |
|
|
6,349 |
68,261 |
31 Dec 2025 |
By Gilbert S. Omenn Revocable Trust |
| Barbie Brewer |
AMST |
Restricted Stock Units |
Award |
47.6% |
|
|
7,341 |
22,781 |
31 Dec 2025 |
Direct |
| George Parmer |
AMST |
Restricted Stock Units |
Award |
11.5% |
|
|
6,349 |
61,365 |
31 Dec 2025 |
Direct |
| J. Michael Losh |
AMST |
Restricted Stock Units |
Award |
10.3% |
|
|
7,672 |
82,483 |
31 Dec 2025 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| Barbie Brewer |
AMST |
Restricted Stock Units |
Award |
41.8% |
|
|
4,549 |
15,440 |
30 Sep 2025 |
Direct |
| Gilbert S. Omenn |
AMST |
Restricted Stock Units |
Award |
6.79% |
|
|
3,934 |
61,912 |
30 Sep 2025 |
By Gilbert S. Omenn Revocable Trust |
| George Parmer |
AMST |
Restricted Stock Units |
Award |
7.7% |
|
|
3,934 |
55,016 |
30 Sep 2025 |
Direct |
| J. Michael Losh |
AMST |
Restricted Stock Units |
Award |
6.79% |
|
|
4,754 |
74,811 |
30 Sep 2025 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| Gilbert S. Omenn |
AMST |
Restricted Stock Units |
Award |
8.34% |
|
|
4,461 |
57,978 |
30 Jun 2025 |
By Gilbert S. Omenn Revocable Trust |
| Barbie Brewer |
AMST |
Restricted Stock Units |
Award |
90% |
|
|
5,158 |
10,891 |
30 Jun 2025 |
Direct |
| J. Michael Losh |
AMST |
Restricted Stock Units |
Award |
8.34% |
|
|
5,390 |
70,057 |
30 Jun 2025 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| George Parmer |
AMST |
Restricted Stock Units |
Award |
9.57% |
|
|
4,461 |
51,082 |
30 Jun 2025 |
Direct |
| George Parmer |
AMST |
Restricted Stock Units |
Award |
11.9% |
|
|
4,959 |
46,621 |
31 Mar 2025 |
Direct |
| Gilbert S. Omenn |
AMST |
Restricted Stock Units |
Award |
10.2% |
|
|
4,959 |
53,517 |
31 Mar 2025 |
By Gilbert S. Omenn Revocable Trust |
| J. Michael Losh |
AMST |
Restricted Stock Units |
Award |
10.2% |
|
|
5,992 |
64,667 |
31 Mar 2025 |
J. Michael Losh Irrevocable Qualified Annuity Trust #7 |
| Barbie Brewer |
AMST |
Restricted Stock Units |
Award |
|
|
|
5,733 |
5,733 |
31 Mar 2025 |
Direct |