Dan Paterson
Insider
First SEC filing: Dec. 12, 2012 · Latest: Dec. 12, 2012
Insider at
Insider transactions
0 buys (P)
23 sells (S)
Net: $-855,090
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 | 44,121 | $8.00 | $352,968 | 652,712 Direct | -6.33% | Disposed | -3.7% (price as of 2026-10-02) |
| Sept. 30, 2026 | VSTM | A 10b5-1 | 106,893 | · | · | 696,833 Direct | -13.30% | Disposed | (price as of 2026-10-02) |
| Aug. 3, 2026 | VSTM | S | 1,302 | $5.81 | $7,565 | 589,940 Direct | -0.22% | Disposed | 32.5% (price as of 2026-10-02) |
| June 22, 2026 | VSTM | S | 20,871 | $4.18 | $87,241 | 591,242 Direct | -3.41% | Disposed | 84.2% (price as of 2026-10-02) |
| May 4, 2026 | VSTM | S | 806 | $5.82 | $4,691 | 612,113 Direct | -0.13% | Disposed | 32.3% (price as of 2026-10-02) |
| Feb. 4, 2026 | VSTM | S | 970 | $6.69 | $6,489 | 612,919 Direct | -0.16% | Disposed | 15.1% (price as of 2026-10-02) |
| Jan. 21, 2026 | VSTM | A | 213,785 | · | · | 613,889 Direct | +53.43% | Acquired | (price as of 2026-10-02) |
| Jan. 12, 2026 | VSTM | S | 10,321 | $7.16 | $73,898 | 400,104 Direct | -2.51% | Disposed | 7.5% (price as of 2026-10-02) |
| Dec. 16, 2025 | VSTM | S | 393 | $9.14 | $3,592 | 410,425 Direct | -0.10% | Disposed | -15.8% (price as of 2026-10-02) |
| Dec. 11, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 410,818 Direct | -0.48% | Disposed | -23.0% (price as of 2026-10-02) |
| Dec. 10, 2025 | VSTM | S 10b5-1 | 2,000 | $10.07 | $20,140 | 412,818 Direct | -0.48% | Disposed | -23.5% (price as of 2026-10-02) |
| Dec. 9, 2025 | VSTM | S 10b5-1 | 2,000 | $10.25 | $20,500 | 414,818 Direct | -0.48% | Disposed | -24.9% (price as of 2026-10-02) |
| Dec. 8, 2025 | VSTM | S 10b5-1 | 2,000 | $10.50 | $21,000 | 416,818 Direct | -0.48% | Disposed | -26.7% (price as of 2026-10-02) |
| Dec. 5, 2025 | VSTM | S 10b5-1 | 2,000 | $10.61 | $21,220 | 418,818 Direct | -0.48% | Disposed | -27.4% (price as of 2026-10-02) |
| Dec. 4, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 420,818 Direct | -0.47% | Disposed | -23.0% (price as of 2026-10-02) |
| Dec. 3, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 422,818 Direct | -0.47% | Disposed | -23.0% (price as of 2026-10-02) |
| Dec. 2, 2025 | VSTM | S 10b5-1 | 2,000 | $10.32 | $20,640 | 424,818 Direct | -0.47% | Disposed | -25.4% (price as of 2026-10-02) |
| Dec. 1, 2025 | VSTM | S 10b5-1 | 2,000 | $10.39 | $20,780 | 426,818 Direct | -0.47% | Disposed | -25.9% (price as of 2026-10-02) |
| Nov. 28, 2025 | VSTM | S 10b5-1 | 2,000 | $10.79 | $21,580 | 428,818 Direct | -0.46% | Disposed | -28.6% (price as of 2026-10-02) |
| Nov. 26, 2025 | VSTM | S 10b5-1 | 2,000 | $10.32 | $20,640 | 430,818 Direct | -0.46% | Disposed | -25.4% (price as of 2026-10-02) |
| Nov. 25, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 432,818 Direct | -0.46% | Disposed | -23.0% (price as of 2026-10-02) |
| Nov. 24, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 434,818 Direct | -0.46% | Disposed | -23.0% (price as of 2026-10-02) |
| Nov. 21, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 436,818 Direct | -0.46% | Disposed | -23.0% (price as of 2026-10-02) |
| Nov. 3, 2025 | VSTM | S 10b5-1 | 2,000 | $10.00 | $20,000 | 438,818 Direct | -0.45% | Disposed | -23.0% (price as of 2026-10-02) |
| Nov. 3, 2025 | VSTM | S | 1,299 | $9.35 | $12,146 | 440,818 Direct | -0.29% | Disposed | -17.6% (price as of 2026-10-02) |
| Sept. 16, 2025 | VSTM | S | 390 | $9.99 | $3,896 | 442,117 Direct | -0.09% | Disposed | -22.9% (price as of 2026-10-02) |
| Aug. 6, 2025 | VSTM | S | 1,332 | $5.81 | $7,739 | 442,507 Direct | -0.30% | Disposed | 32.5% (price as of 2026-10-02) |
| June 20, 2025 | VSTM | S | 17,808 | $5.13 | $91,355 | 443,839 Direct | -3.86% | Disposed | 50.1% (price as of 2026-10-02) |
| June 16, 2025 | VSTM | S | 335 | $5.65 | $1,893 | 461,647 Direct | -0.07% | Disposed | 36.3% (price as of 2026-10-02) |
| May 20, 2025 | VSTM | S | 58,677 | $8.13 | $477,044 | 461,982 Direct | -11.27% | Disposed | -5.3% (price as of 2026-10-02) |
| May 16, 2025 | VSTM | A | 150,000 | · | · | 520,659 Direct | -22.37% | Disposed | (price as of 2026-10-02) |
| May 16, 2025 | VSTM | A | 25,000 | · | · | 370,659 Direct | -6.32% | Disposed | (price as of 2026-10-02) |
| May 5, 2025 | VSTM | S | 820 | $7.30 | $5,986 | 345,659 Direct | -0.24% | Disposed | 5.5% (price as of 2026-10-02) |
| March 17, 2025 | VSTM | S | 244 | $6.95 | $1,696 | 346,479 Direct | -0.07% | Disposed | 10.8% (price as of 2026-10-02) |
| Feb. 4, 2025 | VSTM | S | 858 | $5.70 | $4,891 | 346,723 Direct | -0.25% | Disposed | 35.1% (price as of 2026-10-02) |
| Jan. 13, 2025 | VSTM | S | 8,568 | $5.24 | $44,896 | 347,581 Direct | -2.41% | Disposed | 46.9% (price as of 2026-10-02) |
| Jan. 10, 2025 | VSTM | A | 25,000 | · | · | 356,149 Direct | +7.55% | Acquired | (price as of 2026-10-02) |
| Jan. 10, 2025 | VSTM | A | 100,000 | · | · | 331,149 Direct | +43.26% | Acquired | (price as of 2026-10-02) |
| Dec. 19, 2024 | VSTM | S | 183 | $4.37 | $800 | 231,149 Direct | -0.08% | Disposed | 76.2% (price as of 2026-10-02) |
| Dec. 16, 2024 | VSTM | S | 244 | $4.54 | $1,108 | 231,332 Direct | -0.11% | Disposed | 69.6% (price as of 2026-10-02) |
| Nov. 5, 2024 | VSTM | S | 812 | $3.84 | $3,118 | 231,576 Direct | -0.35% | Disposed | 100.5% (price as of 2026-10-02) |
| Sept. 19, 2024 | VSTM | S | 184 | $2.79 | $513 | 232,388 Direct | -0.08% | Disposed | 176.0% (price as of 2026-10-02) |
| Sept. 16, 2024 | VSTM | S | 246 | $2.80 | $689 | 232,572 Direct | -0.11% | Disposed | 175.0% (price as of 2026-10-02) |
| Aug. 5, 2024 | VSTM | S | 3,245 | $2.16 | $7,009 | 232,818 Direct | -1.37% | Disposed | 256.5% (price as of 2026-10-02) |
| June 20, 2024 | VSTM | S | 183 | $3.21 | $587 | 236,063 Direct | -0.08% | Disposed | 139.9% (price as of 2026-10-02) |
| June 18, 2024 | VSTM | A | 150,000 | · | · | 236,246 Direct | +173.92% | Acquired | (price as of 2026-10-02) |
| June 17, 2024 | VSTM | S | 244 | $3.49 | $852 | 86,246 Direct | -0.28% | Disposed | 120.6% (price as of 2026-10-02) |
| March 19, 2024 | VSTM | S | 182 | $10.38 | $1,889 | 86,490 Direct | -0.21% | Disposed | -25.8% (price as of 2026-10-02) |
| March 18, 2024 | VSTM | S | 244 | $10.71 | $2,613 | 86,672 Direct | -0.28% | Disposed | -28.1% (price as of 2026-10-02) |
| March 11, 2024 | VSTM | A | 23,843 | · | · | 23,843 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | A | 144,137 | · | · | 144,137 Direct | · | Acquired | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 30,708 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 33,962 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 12,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 16,666 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 20,832 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 6,250 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 3,750 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 6,249 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 8,333 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 5,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 11,166 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 11, 2024 | VSTM | D | 12,064 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 19, 2023 | VSTM | S | 183 | $7.73 | $1,415 | 86,916 Direct | -0.21% | Disposed | -0.4% (price as of 2026-10-02) |
| Dec. 18, 2023 | VSTM | S | 244 | $7.64 | $1,864 | 87,099 Direct | -0.28% | Disposed | 0.8% (price as of 2026-10-02) |
| Sept. 19, 2023 | VSTM | S | 183 | $9.84 | $1,801 | 87,343 Direct | -0.21% | Disposed | -21.7% (price as of 2026-10-02) |
| Sept. 18, 2023 | VSTM | S | 240 | $9.91 | $2,378 | 87,526 Direct | -0.27% | Disposed | -22.3% (price as of 2026-10-02) |
| Aug. 2, 2023 | VSTM | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 2, 2023 | VSTM | A | 50,000 | · | · | 87,766 Direct | +132.39% | Acquired | (price as of 2026-10-02) |
| June 20, 2023 | VSTM | S | 183 | $10.30 | $1,885 | 37,766 Direct | -0.48% | Disposed | -25.2% (price as of 2026-10-02) |
| June 16, 2023 | VSTM | S | 244 | $9.92 | $2,420 | 37,949 Direct | -0.64% | Disposed | -22.4% (price as of 2026-10-02) |
| March 20, 2023 | VSTM | S | 2,339 | $0.43 | $1,006 | 458,351 Direct | -0.51% | Disposed | 49.2% (price as of 2026-10-02) |
| March 16, 2023 | VSTM | S | 3,138 | $0.40 | $1,255 | 460,690 Direct | -0.68% | Disposed | 60.4% (price as of 2026-10-02) |
| Jan. 27, 2023 | VSTM | A | 1,680,880 | · | · | 1,680,880 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 19, 2022 | VSTM | S | 2,954 | $0.37 | $1,093 | 463,828 Direct | -0.63% | Disposed | 73.4% (price as of 2026-10-02) |
| Dec. 16, 2022 | VSTM | S | 15,676 | $0.40 | $6,270 | 466,782 Direct | -3.25% | Disposed | 60.4% (price as of 2026-10-02) |
| Sept. 19, 2022 | VSTM | S | 2,786 | $1.13 | $3,148 | 482,458 Direct | -0.57% | Disposed | -43.2% (price as of 2026-10-02) |
| June 21, 2022 | VSTM | S | 2,701 | $1.14 | $3,079 | 485,244 Direct | -0.55% | Disposed | -43.7% (price as of 2026-10-02) |
| May 16, 2022 | VSTM | S | 4,988 | $1.03 | $5,138 | 487,945 Direct | -1.01% | Disposed | -37.7% (price as of 2026-10-02) |
| May 14, 2022 | VSTM | A | 15,000 | · | · | 492,933 Direct | +3.14% | Acquired | (price as of 2026-10-02) |
| March 21, 2022 | VSTM | S | 2,818 | $1.27 | $3,579 | 477,933 Direct | -0.59% | Disposed | -49.5% (price as of 2026-10-02) |
| Jan. 3, 2022 | VSTM | S | 23,534 | $2.05 | $48,245 | 480,751 Direct | -4.67% | Disposed | -68.7% (price as of 2026-10-02) |
| Dec. 20, 2021 | VSTM | S | 10,994 | $2.27 | $24,956 | 504,285 Direct | -2.13% | Disposed | -71.7% (price as of 2026-10-02) |
| Dec. 15, 2021 | VSTM | A | 368,500 | · | · | 368,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 15, 2021 | VSTM | A | 181,500 | · | · | 515,279 Direct | +54.38% | Acquired | (price as of 2026-10-02) |
| Aug. 12, 2021 | VSTM | F | 50,244 | $2.87 | $144,200 | 333,779 Direct | -13.08% | Disposed | -77.6% (price as of 2026-10-02) |
| Dec. 18, 2020 | VSTM | A | 407,552 | · | · | 407,552 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 18, 2020 | VSTM | A | 135,851 | · | · | 555,816 Direct | +32.35% | Acquired | (price as of 2026-10-02) |
| Aug. 11, 2020 | VSTM | A | 321,679 | · | · | 419,965 Direct | +327.29% | Acquired | (price as of 2026-10-02) |
| March 27, 2020 | VSTM | A | 75,000 | · | · | 98,286 Direct | +322.08% | Acquired | (price as of 2026-10-02) |
| Dec. 13, 2019 | VSTM | A | 200,000 | · | · | 200,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 13, 2019 | VSTM | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 21, 2019 | VSTM | A | 250,000 | · | · | 250,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2019 | VSTM | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 3, 2019 | VSTM | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 28, 2018 | VSTM | P | 3,000 | $7.00 | $21,000 | 23,286 Direct | +14.79% | Acquired | -90.8% (price as of 2026-10-02) |
| Sept. 27, 2018 | VSTM | P | 1,200 | $7.04 | $8,448 | 20,286 Direct | +6.29% | Acquired | -90.9% (price as of 2026-10-02) |
| Sept. 27, 2018 | VSTM | P | 800 | $7.01 | $5,608 | 19,086 Direct | +4.37% | Acquired | -90.8% (price as of 2026-10-02) |
| Sept. 24, 2018 | VSTM | A | 30,000 | · | · | 30,000 Direct | · | Acquired | (price as of 2026-10-02) |
| April 6, 2018 | VSTM | A | 15,000 | · | · | 15,000 Direct | · | Acquired | (price as of 2026-10-02) |
Showing latest 100 of 119 transactions
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 | 23,843 | Acquired |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $11.44 | March 11, 2034 | 144,137 | Acquired |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $28.32 | Jan. 4, 2031 | 30,708 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $26.40 | Dec. 18, 2030 | 33,962 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $16.08 | Dec. 13, 2029 | 12,500 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $16.08 | Dec. 13, 2029 | 16,666 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $21.72 | June 21, 2029 | 20,832 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $42.12 | Jan. 3, 2029 | 6,250 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $35.64 | Jan. 5, 2028 | 3,750 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $35.64 | Jan. 5, 2028 | 6,249 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $16.44 | June 13, 2026 | 8,333 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $22.32 | Dec. 31, 2025 | 5,500 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $25.56 | Nov. 8, 2025 | 11,166 | Disposed |
| March 11, 2024 | VSTM | Stock Option (right to buy) | Common Stock | $110.28 | Jan. 8, 2025 | 12,064 | Disposed |
| Aug. 2, 2023 | VSTM | Stock Option (Right to Buy) | Common Stock | $10.44 | Aug. 2, 2033 | 100,000 | Acquired |
| Jan. 27, 2023 | VSTM | Stock Option (Right to Buy) | Common Stock | $0.66 | Jan. 27, 2033 | 1,680,880 | Acquired |
| Dec. 15, 2021 | VSTM | Stock Option (Right to Buy) | Common Stock | $2.36 | Dec. 15, 2031 | 368,500 | Acquired |
| Dec. 18, 2020 | VSTM | Stock Option (Right to Buy) | Common Stock | $2.20 | Dec. 18, 2030 | 407,552 | Acquired |
| Dec. 13, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock | $1.34 | Dec. 13, 2029 | 200,000 | Acquired |
| Dec. 13, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock | $1.34 | Dec. 13, 2029 | 150,000 | Acquired |
| June 21, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock | $1.81 | June 21, 2029 | 250,000 | Acquired |
| Jan. 3, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock | $3.51 | Jan. 3, 2029 | 75,000 | Acquired |
| Jan. 3, 2019 | VSTM | Stock Option (Right to Buy) | Common Stock | $3.51 | Jan. 3, 2029 | 75,000 | Acquired |
| Sept. 24, 2018 | VSTM | Stock Option (Right to Buy) | Common Stock | $2.97 | Jan. 5, 2028 | 30,000 | Acquired |
| April 6, 2018 | VSTM | Stock Option (Right to Buy) | Common Stock | $2.97 | Jan. 5, 2028 | 15,000 | Acquired |
| Jan. 5, 2018 | VSTM | Stock Option (Right to Buy) | Common Stock | $2.97 | Jan. 5, 2028 | 75,000 | Acquired |
| Sept. 19, 2017 | VSTM | Stock Option (Right to Buy) | Common Stock | $1.37 | June 14, 2026 | 50,000 | Acquired |
| Jan. 9, 2017 | VSTM | Stock Option (Right to Buy) | Common Stock | $1.20 | Jan. 9, 2027 | 150,000 | Acquired |
| Oct. 29, 2016 | VSTM | Stock Option (Right to Buy) | Common Stock | $1.37 | June 14, 2026 | 50,000 | Acquired |
| Jan. 1, 2016 | VSTM | Stock Option (right to buy) | Common Stock | $1.86 | Dec. 31, 2025 | 66,000 | Acquired |
| Nov. 9, 2015 | VSTM | Stock Option (right to buy) | Common Stock | $2.13 | Nov. 8, 2025 | 134,000 | Acquired |
| Jan. 8, 2015 | VSTM | Stock Option (Right to Buy) | Common Stock | $9.19 | Jan. 8, 2025 | 144,786 | Acquired |
| Jan. 7, 2014 | VSTM | Stock Option (Right to Buy) | Common Stock | $13.59 | Jan. 6, 2024 | 100,000 | Acquired |
| Jan. 7, 2014 | VSTM | Stock Option (Right to Buy) | Common Stock | $13.59 | Jan. 6, 2024 | 100,000 | Acquired |
| Jan. 15, 2013 | VSTM | Stock Option (Right to Buy) | Common Stock | $9.85 | Jan. 15, 2023 | 80,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 12, 2012 | VSTM | Common Stock | 114,286 | 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 | $470,000 | · | · | · | $206,687 | · | $21,290 | $697,977 |
| 2021 | $460,000 | · | $494,790 | $628,538 | $230,000 | · | $20,390 | $1,833,718 |
| 2020 | $467,077 | · | · | · | $299,000 | · | $14,030 | $2,402,046 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.