Williamson Steven S.
SEC insider (Form 3/4/5 filer). CIK 0001478582. PRESIDENT AND CEO at Pulmonx Corp (LUNG). 6 reported Form 4/5 transactions since Sep 2024; latest on Sep 2, 2025. Located in REDWOOD CITY, CA.
Companies Williamson Steven S. has filed insider reports for
- Pulmonx Corp (LUNG): Director, Officer, PRESIDENT AND CEO
Williamson Steven S.
CIK: 0001478582
Transaction Breakdown
Open Market Buys (P)0 (0.0%)
High conviction signal
Open Market Sales (S)5 (83.3%)
Position reduction
Option Exercises (M)0 (0.0%)
Derivative conversions
Awards (A)1 (16.7%)
Compensation grants
Other (G, F, J, C, D, …)0 (0.0%)
Gifts, tax withholding, conversions, dispositions to the issuer and other codes
Companies & Roles (1)
LUNG
Pulmonx Corp
DirectorOfficer
Discretionary Trading P&L
Holdings
Transaction History (6 total)
- Sep 2, 2025LUNG
Pulmonx Corp
SaleDirect5.1K shares at avg. $1.60$8K - Sep 2, 2025LUNG
Pulmonx Corp
SaleDirect4.5K shares at avg. $1.60$7K - Jun 2, 2025LUNG
Pulmonx Corp
SaleDirect5.3K shares at avg. $3.13$16K - Jun 2, 2025LUNG
Pulmonx Corp
SaleDirect4.7K shares at avg. $3.13$15K - Mar 3, 2025LUNG
Pulmonx Corp
SaleDirect27.7K shares at avg. $7.14$198K - Mar 3, 2025LUNG
Pulmonx Corp
AwardDirect181.7K shares-
| Type | Shares | Price | Ownership | |||
|---|---|---|---|---|---|---|
| Sep 2, 2025 | LUNG Pulmonx Corp | Sale | 5,118 | $1.60 | $8,189 | Direct |
| Sep 2, 2025 | LUNG Pulmonx Corp | Sale | 4,530 | $1.60 | $7,248 | Direct |
| Jun 2, 2025 | LUNG Pulmonx Corp | Sale | 5,262 | $3.13 | $16,470 | Direct |
| Jun 2, 2025 | LUNG Pulmonx Corp | Sale | 4,661 | $3.13 | $14,589 | Direct |
| Mar 3, 2025 | LUNG Pulmonx Corp | Sale | 27,689 | $7.14 | $197,699 | Direct |
| Mar 3, 2025 | LUNG Pulmonx Corp | Award | 181,696 | - | - | Direct |
1-6 of 6 transactions