Daniel Calkins
Insider
First SEC filing: Nov. 8, 2022 · Latest: Nov. 8, 2022
Insider at
Insider transactions
0 buys (P)
6 sells (S)
Net: $-74,749
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 |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 1, 2026 | VSTM | S 10b5-1 | 2,566 | $8.00 | $20,528 | 123,781 Direct | -2.03% | Disposed | -3.7% (price as of 2026-10-02) |
| Sept. 30, 2026 | VSTM | A 10b5-1 | 8,333 | · | · | 126,347 Direct | -6.19% | Disposed | (price as of 2026-10-02) |
| Sept. 21, 2026 | VSTM | S 10b5-1 | 55 | $7.70 | $424 | 118,014 Direct | -0.05% | Disposed | 0.0% (price as of 2026-10-02) |
| June 22, 2026 | VSTM | S | 57 | $4.13 | $235 | 117,238 Direct | -0.05% | Disposed | 86.4% (price as of 2026-10-02) |
| June 22, 2026 | VSTM | S | 4,032 | $4.18 | $16,854 | 117,295 Direct | -3.32% | Disposed | 84.2% (price as of 2026-10-02) |
| March 20, 2026 | VSTM | A | 57 | $5.74 | $327 | 121,327 Direct | -0.05% | Disposed | 34.1% (price as of 2026-10-02) |
| Jan. 21, 2026 | VSTM | A | 16,665 | · | · | 121,384 Direct | +15.91% | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2026 | VSTM | S | 5,039 | $7.16 | $36,079 | 104,719 Direct | -4.59% | Disposed | 7.5% (price as of 2026-10-02) |
| Dec. 24, 2025 | VSTM | S | 80 | $7.86 | $629 | 109,758 Direct | -0.07% | Disposed | -2.0% (price as of 2026-10-02) |
| Sept. 24, 2025 | VSTM | S | 25 | $9.23 | $231 | 109,838 Direct | -0.02% | Disposed | -16.6% (price as of 2026-10-02) |
| Sept. 22, 2025 | VSTM | S | 57 | $9.08 | $518 | 109,863 Direct | -0.05% | Disposed | -15.2% (price as of 2026-10-02) |
| June 23, 2025 | VSTM | S | 25 | $4.71 | $118 | 109,920 Direct | -0.02% | Disposed | 63.5% (price as of 2026-10-02) |
| June 20, 2025 | VSTM | S | 4,110 | $5.13 | $21,084 | 109,945 Direct | -3.60% | Disposed | 50.1% (price as of 2026-10-02) |
| May 20, 2025 | VSTM | S | 11,143 | $8.13 | $90,593 | 114,055 Direct | -8.90% | Disposed | -5.3% (price as of 2026-10-02) |
| May 16, 2025 | VSTM | A | 38,850 | · | · | 125,198 Direct | -23.68% | Disposed | (price as of 2026-10-02) |
| March 24, 2025 | VSTM | S | 26 | $7.04 | $183 | 86,348 Direct | -0.03% | Disposed | 9.4% (price as of 2026-10-02) |
| March 20, 2025 | VSTM | S | 65 | $6.89 | $448 | 86,374 Direct | -0.08% | Disposed | 11.8% (price as of 2026-10-02) |
| Jan. 10, 2025 | VSTM | A | 38,800 | · | · | 86,439 Direct | +81.45% | Acquired | (price as of 2026-10-02) |
| Jan. 6, 2025 | VSTM | S | 6 | $6.94 | $42 | 47,639 Direct | -0.01% | Disposed | 11.0% (price as of 2026-10-02) |
| Dec. 24, 2024 | VSTM | S | 28 | $3.91 | $109 | 47,368 Direct | -0.06% | Disposed | 96.9% (price as of 2026-10-02) |
| Dec. 20, 2024 | VSTM | S | 65 | $4.34 | $282 | 47,396 Direct | -0.14% | Disposed | 77.4% (price as of 2026-10-02) |
| Oct. 7, 2024 | VSTM | S | 6 | $2.86 | $17 | 47,461 Direct | -0.01% | Disposed | 169.2% (price as of 2026-10-02) |
| Sept. 24, 2024 | VSTM | S | 28 | $2.68 | $75 | 47,467 Direct | -0.06% | Disposed | 187.3% (price as of 2026-10-02) |
| Sept. 20, 2024 | VSTM | S | 65 | $2.80 | $182 | 47,495 Direct | -0.14% | Disposed | 175.0% (price as of 2026-10-02) |
| July 9, 2024 | VSTM | S | 7 | $2.62 | $18 | 47,560 Direct | -0.01% | Disposed | 193.9% (price as of 2026-10-02) |
| June 24, 2024 | VSTM | S | 28 | $3.15 | $88 | 47,290 Direct | -0.06% | Disposed | 144.4% (price as of 2026-10-02) |
| June 20, 2024 | VSTM | S | 67 | $3.16 | $212 | 47,318 Direct | -0.14% | Disposed | 143.7% (price as of 2026-10-02) |
| June 18, 2024 | VSTM | A | 38,850 | · | · | 47,385 Direct | +455.18% | Acquired | (price as of 2026-10-02) |
| April 5, 2024 | VSTM | S | 6 | $10.87 | $65 | 8,535 Direct | -0.07% | Disposed | -29.2% (price as of 2026-10-02) |
| March 25, 2024 | VSTM | S | 25 | $12.02 | $300 | 8,541 Direct | -0.29% | Disposed | -35.9% (price as of 2026-10-02) |
| March 20, 2024 | VSTM | S | 55 | $11.07 | $609 | 8,566 Direct | -0.64% | Disposed | -30.4% (price as of 2026-10-02) |
| March 11, 2024 | VSTM | A | 1,175 | · | · | 1,175 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | A | 5,413 | · | · | 5,413 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 1,875 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 833 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 1,666 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 833 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 631 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 5, 2024 | VSTM | S | 6 | $8.50 | $51 | 8,621 Direct | -0.07% | Disposed | -9.4% (price as of 2026-10-02) |
| Dec. 26, 2023 | VSTM | S | 25 | $8.08 | $202 | 8,350 Direct | -0.30% | Disposed | -4.7% (price as of 2026-10-02) |
| Dec. 20, 2023 | VSTM | S | 57 | $7.93 | $452 | 8,375 Direct | -0.68% | Disposed | -2.9% (price as of 2026-10-02) |
| Oct. 24, 2023 | VSTM | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 5, 2023 | VSTM | S | 5 | $7.30 | $36 | 8,432 Direct | -0.06% | Disposed | 5.5% (price as of 2026-10-02) |
| Sept. 25, 2023 | VSTM | S | 25 | $9.40 | $235 | 8,437 Direct | -0.30% | Disposed | -18.1% (price as of 2026-10-02) |
| Sept. 21, 2023 | VSTM | S | 232 | $9.31 | $2,160 | 8,462 Direct | -2.67% | Disposed | -17.3% (price as of 2026-10-02) |
| July 6, 2023 | VSTM | S | 5 | $8.02 | $40 | 8,694 Direct | -0.06% | Disposed | -4.0% (price as of 2026-10-02) |
| June 26, 2023 | VSTM | S | 26 | $8.17 | $212 | 8,422 Direct | -0.31% | Disposed | -5.8% (price as of 2026-10-02) |
| April 5, 2023 | VSTM | S | 75 | $0.37 | $28 | 101,397 Direct | -0.07% | Disposed | 73.4% (price as of 2026-10-02) |
| March 24, 2023 | VSTM | S | 378 | $0.42 | $159 | 101,472 Direct | -0.37% | Disposed | 52.8% (price as of 2026-10-02) |
| Jan. 27, 2023 | VSTM | A | 165,000 | · | · | 165,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 5, 2023 | VSTM | S | 74 | $0.43 | $32 | 98,517 Direct | -0.08% | Disposed | 49.2% (price as of 2026-10-02) |
| Dec. 27, 2022 | VSTM | S | 1,246 | $0.33 | $411 | 98,591 Direct | -1.25% | Disposed | 94.4% (price as of 2026-10-02) |
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 |
|---|---|---|---|---|---|---|---|
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $11.44 | March 11, 2034 | 1,175 | Acquired |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $11.44 | March 11, 2034 | 5,413 | Acquired |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $27.72 | Dec. 23, 2031 | 1,875 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $26.40 | Jan. 4, 2031 | 750 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $29.76 | April 1, 2030 | 833 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $15.96 | Dec. 20, 2029 | 1,666 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $21.72 | June 21, 2029 | 833 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $43.32 | Jan. 2, 2029 | 631 | Disposed |
| Oct. 24, 2023 | VSTM | Stock Option (Right to Buy) | Common Stock | $6.89 | Oct. 24, 2033 | 25,000 | Acquired |
| Jan. 27, 2023 | VSTM | Stock Option (Right to Buy) | Common Stock | $0.66 | Jan. 27, 2033 | 165,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 8 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 8, 2022 | VSTM | Common Stock | 99,837 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 7,583 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 10,000 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 20,000 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 10,000 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 9,000 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 22,500 | Direct |
| Nov. 8, 2022 | VSTM | Stock Option (right to buy) | 52,500 | Direct |
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 |
|---|---|---|---|---|---|---|---|---|
| 2022 | $221,731 | · | · | · | $72,900 | · | $16,036 | $375,547 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.