Joseph M Lobacki
CIK 1536193 · View on SEC EDGAR ↗
First SEC filing: June 9, 2026 · Latest: June 9, 2026
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 28, 2018 | VSTM | P | 3,000 | $7.30 | $21,900 | 10,700 Direct | +38.96% | Acquired | -92.1% (price as of 2026-08-21) |
| June 8, 2018 | VSTM | P | 7,700 | $5.79 | $44,583 | 7,700 Direct | — | Acquired | -90.0% (price as of 2026-08-21) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II)
Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| June 6, 2024 | STRO | Stock Option (right to buy) | Common Stock (35,000) | $3.76 | June 6, 2034 | 35,000 | Acquired |
| June 8, 2023 | STRO | Stock Option (right to buy) | Common Stock (25,000) | $5.12 | June 8, 2033 | 25,000 | Acquired |
| June 6, 2022 | STRO | Stock Option (right to buy) | Common Stock (18,500) | $4.44 | June 5, 2032 | 18,500 | Acquired |
| June 3, 2021 | STRO | Stock Option (right to buy) | Common Stock (18,500) | $18.21 | June 2, 2031 | 18,500 | Acquired |
| June 5, 2020 | STRO | Stock Option (right to buy) | Common Stock (12,000) | $9.83 | June 4, 2030 | 12,000 | Acquired |
| June 17, 2019 | STRO | Stock Option (right to buy Common Stock) | Common Stock (11,610) | $11.12 | June 16, 2029 | 11,610 | Acquired |
| Jan. 3, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock (62,500) | $3.51 | Jan. 3, 2029 | 62,500 | Acquired |
| Jan. 3, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock (62,500) | $3.51 | Jan. 3, 2029 | 62,500 | Acquired |
| Sept. 26, 2018 | STRO | Stock Option (right to buy Common Stock) | Common Stock (26,033) | $15.00 | Sept. 25, 2028 | 26,033 | Acquired |
| Jan. 3, 2018 | VSTM | Stock Option (Right to Buy) | Common Stock (400,000) | $3.14 | Jan. 3, 2028 | 400,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2018 | $381,539 | $60,000 | — | — | $200,000 | — | $12,046 | $1,531,659 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.