Marcio Souza
Insider
First SEC filing: Oct. 15, 2020 · Latest: Oct. 15, 2020
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 |
|---|---|---|---|---|---|---|---|---|---|
| July 8, 2026 | PRAX | G | 2,600 | · | · | 0 Indirect | -100.00% | Disposed | (price as of 2026-10-05) |
| July 8, 2026 | PRAX | G | 20,521 | · | · | 56,495 Direct | -26.65% | Disposed | (price as of 2026-10-05) |
| May 14, 2026 | PRAX | A | 126 | $167.94 | $21,160 | 77,016 Direct | +0.16% | Acquired | 68.8% (price as of 2026-10-05) |
| Jan. 10, 2026 | PRAX | F | 4,252 | $288.45 | $1,226,489 | 76,890 Direct | -5.24% | Disposed | -1.7% (price as of 2026-10-05) |
| Jan. 8, 2026 | PRAX | A | 27,640 | · | · | 81,142 Direct | +51.66% | Acquired | (price as of 2026-10-05) |
| Jan. 8, 2026 | PRAX | A | 22,110 | · | · | 22,110 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 7, 2026 | PRAX | F | 405 | $292.63 | $118,515 | 53,502 Direct | -0.75% | Disposed | -3.1% (price as of 2026-10-05) |
| Dec. 30, 2025 | PRAX | G | 400 | · | · | 2,600 Indirect | -13.33% | Disposed | (price as of 2026-10-05) |
| May 14, 2025 | PRAX | A | 348 | $31.54 | $10,976 | 53,907 Direct | +0.65% | Acquired | 799.0% (price as of 2026-10-05) |
| Feb. 12, 2025 | PRAX | F | 401 | $85.40 | $34,245 | 53,559 Direct | -0.74% | Disposed | 232.0% (price as of 2026-10-05) |
| Jan. 10, 2025 | PRAX | A | 37,500 | · | · | 53,960 Direct | +227.83% | Acquired | (price as of 2026-10-05) |
| Jan. 10, 2025 | PRAX | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 7, 2025 | PRAX | F | 434 | $77.52 | $33,644 | 16,460 Direct | -2.57% | Disposed | 265.8% (price as of 2026-10-05) |
| July 29, 2024 | PRAX | A | 185,000 | · | · | 185,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 14, 2024 | PRAX | A | 1,718 | $12.37 | $21,252 | 16,894 Direct | +11.32% | Acquired | 2192.3% (price as of 2026-10-05) |
| Feb. 12, 2024 | PRAX | F | 271 | $44.65 | $12,100 | 15,176 Direct | -1.75% | Disposed | 535.1% (price as of 2026-10-05) |
| Jan. 12, 2024 | PRAX | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 7, 2024 | PRAX | F | 418 | $25.19 | $10,529 | 15,447 Direct | -2.63% | Disposed | 1025.7% (price as of 2026-10-05) |
| June 27, 2023 | PRAX | P | 10,000 | $1.06 | $10,600 | 45,002 Indirect | +28.57% | Acquired | 1683.4% (price as of 2026-10-05) |
| May 12, 2023 | PRAX | A | 11,687 | $0.88 | $10,285 | 237,986 Direct | +5.16% | Acquired | 2048.2% (price as of 2026-10-05) |
| March 23, 2023 | PRAX | P | 35,002 | $0.86 | $30,102 | 35,002 Indirect | · | Acquired | 2098.2% (price as of 2026-10-05) |
| March 23, 2023 | PRAX | P | 35,000 | $0.86 | $30,100 | 226,299 Direct | +18.30% | Acquired | 2098.2% (price as of 2026-10-05) |
| Jan. 12, 2023 | PRAX | A | 425,000 | · | · | 425,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 12, 2023 | PRAX | A | 213,975 | · | · | 213,975 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 14, 2022 | PRAX | A | 2,115 | $1.81 | $3,828 | 191,299 Direct | +1.12% | Acquired | 944.4% (price as of 2026-10-05) |
| Aug. 25, 2022 | SYRE | P | 90,000 | $0.56 | $50,400 | 90,000 Direct | · | Acquired | 562.3% (price as of 2026-10-05) |
| June 22, 2022 | PRAX | A | 100,000 | · | · | 100,000 Direct | · | Acquired | (price as of 2026-10-05) |
| June 8, 2022 | PRAX | P | 27,000 | $1.85 | $49,950 | 189,184 Direct | +16.65% | Acquired | 921.8% (price as of 2026-10-05) |
| June 7, 2022 | SYRE | A | 43,000 | · | · | 43,000 Direct | · | Acquired | (price as of 2026-10-05) |
| May 13, 2022 | PRAX | A | 1,392 | $8.80 | $12,250 | 162,184 Direct | +0.87% | Acquired | 114.8% (price as of 2026-10-05) |
| Jan. 7, 2022 | PRAX | A | 259,000 | · | · | 259,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 7, 2022 | PRAX | A | 74,000 | · | · | 160,792 Direct | +85.26% | Acquired | (price as of 2026-10-05) |
| Aug. 18, 2021 | PRAX | P | 9,542 | $15.79 | $150,668 | 86,792 Direct | +12.35% | Acquired | 19.7% (price as of 2026-10-05) |
| June 18, 2021 | SYRE | A | 60,000 | · | · | 60,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2021 | PRAX | A | 52,800 | · | · | 77,250 Direct | +215.95% | Acquired | (price as of 2026-10-05) |
| Feb. 12, 2021 | PRAX | A | 184,800 | · | · | 184,800 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 10, 2020 | PRAX | P | 3,846 | $26.08 | $100,304 | 24,450 Direct | +18.67% | Acquired | -27.5% (price as of 2026-10-05) |
| Oct. 20, 2020 | PRAX | C | 44,092 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 20, 2020 | PRAX | C | 20,604 | · | · | 20,604 Direct | · | Acquired | (price as of 2026-10-05) |
| Feb. 10, 2020 | PTCT | M 10b5-1 | 625 | $12.92 | $8,075 | 3,125 Indirect | -16.67% | Disposed | 392.6% (price as of 2026-10-05) |
| Feb. 10, 2020 | PTCT | S 10b5-1 | 625 | $53.92 | $33,700 | 6,744 Indirect | -8.48% | Disposed | 18.0% (price as of 2026-10-05) |
| Feb. 10, 2020 | PTCT | M 10b5-1 | 625 | $12.92 | $8,075 | 7,369 Indirect | +9.27% | Acquired | 392.6% (price as of 2026-10-05) |
| Jan. 29, 2020 | PTCT | A | 4,170 | · | · | 4,170 Indirect | · | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2020 | PTCT | A | 93,500 | · | · | 93,500 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2020 | PTCT | A | 1,670 | · | · | 6,744 Indirect | +32.91% | Acquired | (price as of 2026-10-05) |
| Jan. 29, 2020 | PTCT | A | 12,600 | · | · | 50,097 Direct | +33.60% | Acquired | (price as of 2026-10-05) |
| Jan. 23, 2020 | PTCT | S | 154 | $53.25 | $8,200 | 5,074 Indirect | -2.95% | Disposed | 19.5% (price as of 2026-10-05) |
| Jan. 6, 2020 | PTCT | S | 86 | $48.17 | $4,143 | 5,228 Indirect | -1.62% | Disposed | 32.1% (price as of 2026-10-05) |
| Dec. 30, 2019 | PTCT | G | 1,000 | · | · | 37,497 Direct | -2.60% | Disposed | (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 6,250 | $12.92 | $80,750 | 3,750 Indirect | -62.50% | Disposed | 392.6% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 30,000 | $18.01 | $540,300 | 45,000 Direct | -40.00% | Disposed | 253.4% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 15,881 | $11.23 | $178,344 | 7,219 Direct | -68.75% | Disposed | 466.8% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 30,000 | $12.53 | $375,900 | 0 Direct | -100.00% | Disposed | 408.0% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 6,250 | $48.80 | $305,000 | 5,038 Indirect | -55.37% | Disposed | 30.4% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 6,250 | $12.92 | $80,750 | 11,288 Indirect | +124.06% | Acquired | 392.6% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 18,668 | $49.19 | $918,279 | 38,221 Direct | -32.81% | Disposed | 29.4% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 11,332 | $48.43 | $548,809 | 56,889 Direct | -16.61% | Disposed | 31.4% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 30,000 | $18.01 | $540,300 | 68,221 Direct | +78.49% | Acquired | 253.4% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 7,004 | $49.32 | $345,437 | 38,221 Direct | -15.49% | Disposed | 29.1% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 8,877 | $48.58 | $431,245 | 45,225 Direct | -16.41% | Disposed | 31.0% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 15,881 | $11.23 | $178,344 | 54,102 Direct | +41.55% | Acquired | 466.8% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 21,271 | $49.14 | $1,045,257 | 38,221 Direct | -35.75% | Disposed | 29.5% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 8,729 | $48.32 | $421,785 | 59,492 Direct | -12.80% | Disposed | 31.7% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | M 10b5-1 | 30,000 | $12.53 | $375,900 | 68,221 Direct | +78.49% | Acquired | 408.0% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 14,814 | $49.14 | $727,960 | 38,221 Direct | -27.93% | Disposed | 29.5% (price as of 2026-10-05) |
| Dec. 23, 2019 | PTCT | S 10b5-1 | 6,000 | $48.32 | $289,920 | 53,035 Direct | -10.16% | Disposed | 31.7% (price as of 2026-10-05) |
| June 3, 2019 | PTCT | S | 5,490 | $40.38 | $221,686 | 58,664 Direct | -8.56% | Disposed | 57.6% (price as of 2026-10-05) |
| Jan. 22, 2019 | PTCT | A | 112,500 | · | · | 112,500 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 22, 2019 | PTCT | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 22, 2019 | PTCT | A | 6,825 | · | · | 6,825 Indirect | · | Acquired | (price as of 2026-10-05) |
| Jan. 22, 2019 | PTCT | A | 1,925 | · | · | 4,667 Indirect | +70.20% | Acquired | (price as of 2026-10-05) |
| Jan. 7, 2019 | PTCT | S | 83 | $34.75 | $2,884 | 2,742 Indirect | -2.94% | Disposed | 83.2% (price as of 2026-10-05) |
| June 1, 2018 | PTCT | S | 5,161 | $34.65 | $178,829 | 63,071 Direct | -7.56% | Disposed | 83.7% (price as of 2026-10-05) |
| Jan. 3, 2018 | PTCT | A | 1,079 | · | · | 1,742 Indirect | +162.75% | Acquired | (price as of 2026-10-05) |
| Jan. 3, 2018 | PTCT | A | 75,000 | · | · | 75,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 3, 2018 | PTCT | A | 2,696 | · | · | 2,696 Indirect | · | Acquired | (price as of 2026-10-05) |
| May 31, 2017 | PTCT | A | 30,000 | $12.53 | $375,900 | 30,000 Direct | · | Acquired | 408.0% (price as of 2026-10-05) |
| May 31, 2017 | PTCT | A | 30,000 | · | · | 36,457 Direct | +464.61% | Acquired | (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Jan. 8, 2026 | PRAX | Stock Option (Right to Buy) | Common Stock | $294.38 | Jan. 8, 2036 | 22,110 | Acquired |
| Jan. 10, 2025 | PRAX | Stock Option (Right to Buy) | Common Stock | $63.15 | Jan. 10, 2035 | 75,000 | Acquired |
| July 29, 2024 | PRAX | Stock Option (Right to Buy) | Common Stock | $56.94 | July 29, 2034 | 185,000 | Acquired |
| Jan. 12, 2024 | PRAX | Stock Option (Right to Buy) | Common Stock | $43.37 | Jan. 12, 2034 | 100,000 | Acquired |
| Jan. 12, 2023 | PRAX | Stock Option (Right to Buy) | Common Stock | $2.96 | Jan. 12, 2033 | 425,000 | Acquired |
| Jan. 12, 2023 | PRAX | Stock Option (Right to Buy) | Common Stock | $2.96 | Jan. 12, 2033 | 213,975 | Acquired |
| June 22, 2022 | PRAX | Stock Option (Right to Buy) | Common Stock | $2.12 | June 22, 2032 | 100,000 | Acquired |
| June 7, 2022 | SYRE | Director Stock Option (right to buy) | Common Stock | $0.73 | June 6, 2032 | 43,000 | Acquired |
| Jan. 7, 2022 | PRAX | Stock Option (Right to Buy) | Common Stock | $18.11 | Jan. 7, 2032 | 259,000 | Acquired |
| June 18, 2021 | SYRE | Director Stock Option (right to buy) | Common Stock | $6.44 | June 17, 2031 | 60,000 | Acquired |
| Feb. 12, 2021 | PRAX | Stock Option (Right to Buy) | Common Stock | $52.53 | Feb. 12, 2031 | 184,800 | Acquired |
| Oct. 20, 2020 | PRAX | Series C -1 Preferred Stock | Common Stock | · | · | 44,092 | Disposed |
| Feb. 10, 2020 | PTCT | Stock Option (Right To Buy) | Common Stock | $12.92 | May 17, 2027 | 625 | Disposed |
| Jan. 29, 2020 | PTCT | Stock Option (Right To Buy) | Common Stock | $51.16 | Jan. 28, 2030 | 4,170 | Acquired |
| Jan. 29, 2020 | PTCT | Stock Option (Right To Buy) | Common Stock | $51.16 | Jan. 28, 2030 | 93,500 | Acquired |
| Dec. 23, 2019 | PTCT | Stock Option (Right To Buy) | Common Stock | $12.92 | May 17, 2027 | 6,250 | Disposed |
| Dec. 23, 2019 | PTCT | Stock Option (Right To Buy) | Common Stock | $18.01 | Jan. 2, 2028 | 30,000 | Disposed |
| Dec. 23, 2019 | PTCT | Stock Option (Right To Buy) | Common Stock | $11.23 | Jan. 2, 2027 | 15,881 | Disposed |
| Dec. 23, 2019 | PTCT | Stock Option (Right To Buy) | Common Stock | $12.53 | May 30, 2027 | 30,000 | Disposed |
| Jan. 22, 2019 | PTCT | Stock Option (Right to Buy) | Common Stock | $33.02 | Jan. 21, 2029 | 112,500 | Acquired |
| Jan. 22, 2019 | PTCT | Stock Option (Right to Buy) | Common Stock | $33.02 | Jan. 21, 2029 | 25,000 | Acquired |
| Jan. 22, 2019 | PTCT | Stock Option (Right to Buy) | Common Stock | $33.02 | Jan. 21, 2029 | 6,825 | Acquired |
| Jan. 3, 2018 | PTCT | Stock Option (Right To Buy) | Common Stock | $18.01 | Jan. 2, 2028 | 75,000 | Acquired |
| Jan. 3, 2018 | PTCT | Stock Option (Right To Buy) | Common Stock | $18.01 | Jan. 2, 2028 | 2,696 | Acquired |
| May 31, 2017 | PTCT | Stock Option (Right To Buy) | Common Stock | $12.53 | May 31, 2017 | 30,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 10 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 15, 2020 | PRAX | Series C-1 Preferred Stock | 20,604 | Direct |
| Oct. 15, 2020 | PRAX | Stock Option (Right to Buy) | 955,349 | Direct |
| Oct. 15, 2020 | PRAX | Stock Option (Right to Buy) | 1,028,037 | Direct |
| June 2, 2017 | PTCT | Common Stock | 36,457 | Direct |
| June 2, 2017 | PTCT | Stock Option (Right To Buy) | 30,000 | Direct |
| June 2, 2017 | PTCT | Stock Option (Right To Buy) | 10,525 | Direct |
| June 2, 2017 | PTCT | Stock Option (Right To Buy) | 16,000 | Direct |
| June 2, 2017 | PTCT | Stock Option (Right To Buy) | 2,000 | Direct |
| June 2, 2017 | PTCT | Stock Option (Right To Buy) | 23,100 | Direct |
| June 2, 2017 | PTCT | Stock Option (Right To Buy) | 10,000 | Indirect |
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 |
|---|---|---|---|---|---|---|---|---|
| 2019 | $528,000 | · | · | · | $363,000 | · | $7,920 | $3,709,523 |
| 2018 | $450,225 | $174,000 | · | · | $360,180 | · | $7,441 | $1,945,002 |
| 2017 | $401,396 | $75,000 | · | · | $165,300 | · | $30,429 | $1,524,266 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.