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Karin L Walker
Insider
First SEC filing: March 1, 2019 · Latest: March 1, 2019
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 28, 2026 | PRTA | M | 15,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| July 28, 2026 | PRTA | D | 15,000 | $8.56 | $128,400 | 10,000 Direct | -60.00% | Disposed | -2.3% (price as of 2026-10-02) |
| July 28, 2026 | PRTA | M | 15,000 | · | · | 25,000 Direct | +150.00% | Acquired | (price as of 2026-10-02) |
| March 3, 2026 | PRTA | A | 150,000 | · | · | 150,000 Direct | · | Acquired | (price as of 2026-10-02) |
| July 28, 2025 | PRTA | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| March 5, 2025 | PRTA | A | 70,000 | · | · | 70,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2024 | PRTA | A | 54,000 | · | · | 54,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 24, 2024 | PRTA | M | 5,000 | · | · | 15,000 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| Jan. 24, 2024 | PRTA | S 10b5-1 | 5,000 | $34.00 | $170,000 | 0 Direct | -100.00% | Disposed | -75.4% (price as of 2026-10-02) |
| Jan. 24, 2024 | PRTA | M | 5,000 | $13.53 | $67,650 | 5,000 Direct | · | Acquired | -38.2% (price as of 2026-10-02) |
| Dec. 20, 2023 | PRTA | M | 5,000 | · | · | 20,000 Direct | -20.00% | Disposed | (price as of 2026-10-02) |
| Dec. 20, 2023 | PRTA | S 10b5-1 | 3,322 | $37.45 | $124,409 | 0 Direct | -100.00% | Disposed | -77.7% (price as of 2026-10-02) |
| Dec. 20, 2023 | PRTA | S 10b5-1 | 1,678 | $36.68 | $61,549 | 3,322 Direct | -33.56% | Disposed | -77.2% (price as of 2026-10-02) |
| Dec. 20, 2023 | PRTA | M | 5,000 | $13.53 | $67,650 | 5,000 Direct | · | Acquired | -38.2% (price as of 2026-10-02) |
| Nov. 30, 2023 | PRTA | M | 5,000 | · | · | 25,000 Direct | -16.67% | Disposed | (price as of 2026-10-02) |
| Nov. 30, 2023 | PRTA | S 10b5-1 | 5,000 | $34.00 | $170,000 | 0 Direct | -100.00% | Disposed | -75.4% (price as of 2026-10-02) |
| Nov. 30, 2023 | PRTA | M | 5,000 | $13.53 | $67,650 | 5,000 Direct | · | Acquired | -38.2% (price as of 2026-10-02) |
| Oct. 25, 2023 | PRTA | M | 5,000 | · | · | 30,000 Direct | -14.29% | Disposed | (price as of 2026-10-02) |
| Oct. 25, 2023 | PRTA | S 10b5-1 | 294 | $42.28 | $12,430 | 0 Direct | -100.00% | Disposed | -80.2% (price as of 2026-10-02) |
| Oct. 25, 2023 | PRTA | S 10b5-1 | 2,917 | $41.38 | $120,705 | 294 Direct | -90.84% | Disposed | -79.8% (price as of 2026-10-02) |
| Oct. 25, 2023 | PRTA | S 10b5-1 | 1,789 | $40.27 | $72,043 | 3,211 Direct | -35.78% | Disposed | -79.2% (price as of 2026-10-02) |
| Oct. 25, 2023 | PRTA | M | 5,000 | $13.53 | $67,650 | 5,000 Direct | · | Acquired | -38.2% (price as of 2026-10-02) |
| Sept. 19, 2023 | PRTA | M | 5,000 | · | · | 481 Direct | -91.22% | Disposed | (price as of 2026-10-02) |
| Sept. 19, 2023 | PRTA | S 10b5-1 | 5,000 | $52.36 | $261,800 | 0 Direct | -100.00% | Disposed | -84.0% (price as of 2026-10-02) |
| Sept. 19, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| Aug. 18, 2023 | PRTA | M | 5,000 | · | · | 5,481 Direct | -47.71% | Disposed | (price as of 2026-10-02) |
| Aug. 18, 2023 | PRTA | S 10b5-1 | 5,000 | $57.18 | $285,900 | 0 Direct | -100.00% | Disposed | -85.4% (price as of 2026-10-02) |
| Aug. 18, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| July 19, 2023 | PRTA | M | 5,000 | · | · | 10,481 Direct | -32.30% | Disposed | (price as of 2026-10-02) |
| July 19, 2023 | PRTA | S 10b5-1 | 1,034 | $70.08 | $72,463 | 0 Direct | -100.00% | Disposed | -88.1% (price as of 2026-10-02) |
| July 19, 2023 | PRTA | S 10b5-1 | 3,966 | $68.96 | $273,495 | 1,034 Direct | -79.32% | Disposed | -87.9% (price as of 2026-10-02) |
| July 19, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| June 30, 2023 | BGMS | A | 42,438 | · | · | 42,438 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2023 | BGMS | A | 21,219 | · | · | 40,602 Direct | +109.47% | Acquired | (price as of 2026-10-02) |
| June 20, 2023 | PRTA | M | 5,000 | · | · | 15,481 Direct | -24.41% | Disposed | (price as of 2026-10-02) |
| June 20, 2023 | PRTA | S 10b5-1 | 529 | $69.99 | $37,025 | 0 Direct | -100.00% | Disposed | -88.1% (price as of 2026-10-02) |
| June 20, 2023 | PRTA | S 10b5-1 | 2,471 | $69.49 | $171,710 | 529 Direct | -82.37% | Disposed | -88.0% (price as of 2026-10-02) |
| June 20, 2023 | PRTA | S 10b5-1 | 2,000 | $67.88 | $135,760 | 3,000 Direct | -40.00% | Disposed | -87.7% (price as of 2026-10-02) |
| June 20, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| May 19, 2023 | PRTA | M | 5,000 | · | · | 20,481 Direct | -19.62% | Disposed | (price as of 2026-10-02) |
| May 19, 2023 | PRTA | S 10b5-1 | 2,177 | $74.47 | $162,121 | 0 Direct | -100.00% | Disposed | -88.8% (price as of 2026-10-02) |
| May 19, 2023 | PRTA | S 10b5-1 | 2,823 | $73.63 | $207,857 | 2,177 Direct | -56.46% | Disposed | -88.6% (price as of 2026-10-02) |
| May 19, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| April 19, 2023 | PRTA | M | 5,000 | · | · | 25,481 Direct | -16.40% | Disposed | (price as of 2026-10-02) |
| April 19, 2023 | PRTA | S 10b5-1 | 2,083 | $53.25 | $110,920 | 0 Direct | -100.00% | Disposed | -84.3% (price as of 2026-10-02) |
| April 19, 2023 | PRTA | S 10b5-1 | 2,917 | $52.64 | $153,551 | 2,083 Direct | -58.34% | Disposed | -84.1% (price as of 2026-10-02) |
| April 19, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| March 20, 2023 | PRTA | M | 5,000 | · | · | 30,481 Direct | -14.09% | Disposed | (price as of 2026-10-02) |
| March 20, 2023 | PRTA | S 10b5-1 | 1,097 | $48.47 | $53,172 | 0 Direct | -100.00% | Disposed | -82.8% (price as of 2026-10-02) |
| March 20, 2023 | PRTA | S 10b5-1 | 3,903 | $47.51 | $185,432 | 1,097 Direct | -78.06% | Disposed | -82.4% (price as of 2026-10-02) |
| March 20, 2023 | PRTA | M | 5,000 | $15.04 | $75,200 | 5,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| March 15, 2023 | PRTA | M | 20,000 | $15.04 | $300,800 | 20,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| March 15, 2023 | PRTA | S 10b5-1 | 9,431 | $48.14 | $454,008 | 10,569 Direct | -47.16% | Disposed | -82.6% (price as of 2026-10-02) |
| March 15, 2023 | PRTA | S 10b5-1 | 10,569 | $48.66 | $514,288 | 0 Direct | -100.00% | Disposed | -82.8% (price as of 2026-10-02) |
| March 15, 2023 | PRTA | M | 20,000 | · | · | 53,481 Direct | -27.22% | Disposed | (price as of 2026-10-02) |
| March 2, 2023 | PRTA | A | 38,000 | · | · | 38,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 18, 2022 | PRTA | M | 10,000 | $15.04 | $150,400 | 10,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| Nov. 18, 2022 | PRTA | S 10b5-1 | 9,774 | $57.04 | $557,509 | 226 Direct | -97.74% | Disposed | -85.3% (price as of 2026-10-02) |
| Nov. 18, 2022 | PRTA | S 10b5-1 | 226 | $58.27 | $13,169 | 0 Direct | -100.00% | Disposed | -85.7% (price as of 2026-10-02) |
| Nov. 18, 2022 | PRTA | M | 10,000 | · | · | 55,481 Direct | -15.27% | Disposed | (price as of 2026-10-02) |
| Oct. 24, 2022 | PRTA | M | 20,000 | $15.04 | $300,800 | 20,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| Oct. 24, 2022 | PRTA | S 10b5-1 | 7,907 | $56.39 | $445,876 | 12,093 Direct | -39.53% | Disposed | -85.2% (price as of 2026-10-02) |
| Oct. 24, 2022 | PRTA | S 10b5-1 | 7,144 | $57.34 | $409,637 | 4,949 Direct | -59.08% | Disposed | -85.4% (price as of 2026-10-02) |
| Oct. 24, 2022 | PRTA | S 10b5-1 | 3,785 | $58.25 | $220,476 | 1,164 Direct | -76.48% | Disposed | -85.6% (price as of 2026-10-02) |
| Oct. 24, 2022 | PRTA | S 10b5-1 | 1,164 | $58.98 | $68,653 | 0 Direct | -100.00% | Disposed | -85.8% (price as of 2026-10-02) |
| Oct. 24, 2022 | PRTA | M | 20,000 | · | · | 65,481 Direct | -23.40% | Disposed | (price as of 2026-10-02) |
| June 14, 2022 | BGMS | A | 31,645 | · | · | 31,645 Direct | · | Acquired | (price as of 2026-10-02) |
| June 14, 2022 | BGMS | A | 15,822 | · | · | 19,383 Direct | +444.31% | Acquired | (price as of 2026-10-02) |
| Feb. 23, 2022 | PRTA | A | 45,500 | · | · | 45,500 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 23, 2021 | PRTA | M | 4,519 | $15.04 | $67,966 | 4,519 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| Nov. 23, 2021 | PRTA | S 10b5-1 | 2,700 | $57.51 | $155,277 | 1,819 Direct | -59.75% | Disposed | -85.5% (price as of 2026-10-02) |
| Nov. 23, 2021 | PRTA | S 10b5-1 | 1,819 | $58.43 | $106,284 | 0 Direct | -100.00% | Disposed | -85.7% (price as of 2026-10-02) |
| Nov. 23, 2021 | PRTA | M | 4,519 | · | · | 85,481 Direct | -5.02% | Disposed | (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | M | 20,000 | $15.04 | $300,800 | 20,000 Direct | · | Acquired | -44.4% (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | M | 3,000 | $29.81 | $89,430 | 23,000 Direct | +15.00% | Acquired | -72.0% (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | S 10b5-1 | 19,115 | $60.00 | $1,146,900 | 3,885 Direct | -83.11% | Disposed | -86.1% (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | S 10b5-1 | 1,700 | $60.91 | $103,547 | 2,185 Direct | -43.76% | Disposed | -86.3% (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | S 10b5-1 | 2,185 | $61.94 | $135,339 | 0 Direct | -100.00% | Disposed | -86.5% (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | M | 20,000 | · | · | 90,000 Direct | -18.18% | Disposed | (price as of 2026-10-02) |
| Oct. 20, 2021 | PRTA | M | 3,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 15, 2021 | BGMS | A | 2,374 | · | · | 7,122 Direct | +50.00% | Acquired | (price as of 2026-10-02) |
| June 15, 2021 | BGMS | A | 4,748 | · | · | 7,122 Direct | +200.00% | Acquired | (price as of 2026-10-02) |
| June 15, 2021 | BGMS | A | 1,187 | · | · | 3,561 Direct | +50.00% | Acquired | (price as of 2026-10-02) |
| June 15, 2021 | BGMS | A | 2,374 | · | · | 3,561 Direct | +200.00% | Acquired | (price as of 2026-10-02) |
| Feb. 25, 2021 | PRTA | A | 28,000 | · | · | 28,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | D | 17,500 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | A | 15,909 | · | · | 15,909 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | D | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | A | 15,625 | · | · | 15,625 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | D | 30,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | A | 15,625 | · | · | 15,625 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | D | 25,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 12, 2021 | PRTA | A | 18,796 | · | · | 18,796 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 9, 2020 | BGMS | A | 5,200 | · | · | 5,200 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 25, 2020 | PRTA | A | 40,000 | · | · | 40,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 27, 2019 | PRTA | A | 35,000 | · | · | 35,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 21, 2018 | PRTA | A | 110,000 | · | · | 110,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 21, 2018 | PRTA | A | 25,000 | · | · | 25,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 28, 2017 | PRTA | M | 1,500 | · | · | 17,500 Direct | -7.89% | Disposed | (price as of 2026-10-02) |
| Sept. 28, 2017 | PRTA | S | 1,500 | $70.00 | $105,000 | 0 Direct | -100.00% | Disposed | -88.1% (price as of 2026-10-02) |
Showing latest 100 of 178 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 |
|---|---|---|---|---|---|---|---|
| July 28, 2026 | PRTA | Restricted Stock Units [F2] | Ordinary Shares | · | · | 15,000 | Disposed |
| March 3, 2026 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $9.36 | March 3, 2036 | 150,000 | Acquired |
| March 5, 2025 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $14.95 | March 5, 2035 | 70,000 | Acquired |
| Feb. 27, 2024 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $30.30 | Feb. 27, 2034 | 54,000 | Acquired |
| Jan. 24, 2024 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $13.53 | Feb. 27, 2029 | 5,000 | Disposed |
| Dec. 20, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $13.53 | Feb. 27, 2029 | 5,000 | Disposed |
| Nov. 30, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $13.53 | Feb. 27, 2029 | 5,000 | Disposed |
| Oct. 25, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $13.53 | Feb. 27, 2029 | 5,000 | Disposed |
| Sept. 19, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| Aug. 18, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| July 19, 2023 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| June 30, 2023 | BGMS | Stock Option (right to buy) | Common Stock | $0.59 | June 30, 2033 | 42,438 | Acquired |
| June 20, 2023 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| May 19, 2023 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| April 19, 2023 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| March 20, 2023 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 5,000 | Disposed |
| March 15, 2023 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 20,000 | Disposed |
| March 2, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $52.97 | March 2, 2033 | 38,000 | Acquired |
| Nov. 18, 2022 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 10,000 | Disposed |
| Oct. 24, 2022 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 20,000 | Disposed |
| June 14, 2022 | BGMS | Stock Option (right to buy) | Common stock | $1.11 | June 14, 2032 | 31,645 | Acquired |
| Feb. 23, 2022 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $32.45 | Feb. 23, 2032 | 45,500 | Acquired |
| Nov. 23, 2021 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 4,519 | Disposed |
| Oct. 20, 2021 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 20,000 | Disposed |
| Oct. 20, 2021 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 3,000 | Disposed |
| June 15, 2021 | BGMS | Stock Option (right to buy) | Common Stock | $6.69 | June 15, 2031 | 2,374 | Acquired |
| June 15, 2021 | BGMS | Stock Option (right to buy) | Common Stock | $6.69 | June 15, 2031 | 4,748 | Acquired |
| Feb. 25, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $22.60 | Feb. 25, 2031 | 28,000 | Acquired |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $27.81 | March 11, 2025 | 17,500 | Disposed |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $22.85 | March 11, 2025 | 15,909 | Acquired |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $34.61 | Feb. 24, 2026 | 25,000 | Disposed |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $22.85 | Feb. 24, 2026 | 15,625 | Acquired |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $55.00 | Feb. 22, 2027 | 30,000 | Disposed |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $22.85 | Feb. 22, 2027 | 15,625 | Acquired |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $33.10 | Feb. 21, 2028 | 25,000 | Disposed |
| Feb. 12, 2021 | PRTA | Employee Stock Option (Right to Buy) | Ordinary Shares | $22.85 | Feb. 21, 2028 | 18,796 | Acquired |
| Nov. 9, 2020 | BGMS | Stock Option (right to buy) [F1] | Common Stock | $3.33 | Nov. 9, 2030 | 5,200 | Acquired |
| Feb. 25, 2020 | PRTA | Stock Option (Right to Buy) | Ordinary Shares | $12.15 | Feb. 25, 2030 | 40,000 | Acquired |
| Feb. 27, 2019 | PRTA | Stock Option (right to buy) | Ordinary Shares | $13.53 | Feb. 27, 2029 | 35,000 | Acquired |
| June 21, 2018 | PRTA | Stock Option (right to buy) | Ordinary Shares | $15.04 | June 21, 2028 | 110,000 | Acquired |
| Feb. 21, 2018 | PRTA | Stock Option (right to buy) | Ordinary Shares | $33.10 | Feb. 21, 2028 | 25,000 | Acquired |
| Sept. 28, 2017 | PRTA | Stock Option(right to buy) | Ordinary Shares | $27.81 | March 11, 2025 | 1,500 | Disposed |
| July 17, 2017 | PRTA | Stock Option(right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 5,000 | Disposed |
| April 17, 2017 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 2,000 | Disposed |
| April 17, 2017 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 3,000 | Disposed |
| Feb. 22, 2017 | PRTA | Stock Option (right to buy) | Ordinary Shares | $55.00 | Feb. 22, 2027 | 30,000 | Acquired |
| Oct. 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 2,000 | Disposed |
| Oct. 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 3,000 | Disposed |
| Sept. 19, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $27.81 | March 11, 2025 | 5,000 | Disposed |
| Sept. 19, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 7,000 | Disposed |
| April 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $27.81 | March 11, 2025 | 1,000 | Disposed |
| April 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 1,000 | Disposed |
| April 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,000 | Disposed |
| Feb. 24, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $34.61 | Feb. 24, 2026 | 25,000 | Acquired |
| Jan. 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 2,000 | Disposed |
| Jan. 13, 2016 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,000 | Disposed |
| Aug. 12, 2015 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 2,000 | Disposed |
| Aug. 12, 2015 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 5,000 | Disposed |
| March 11, 2015 | PRTA | Stock Option (right to buy) | Ordinary Shares | $27.81 | March 11, 2025 | 25,000 | Acquired |
| Feb. 10, 2015 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,500 | Disposed |
| Dec. 9, 2014 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,500 | Disposed |
| Oct. 16, 2014 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,500 | Disposed |
| Oct. 16, 2014 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,500 | Disposed |
| Aug. 12, 2014 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 2,500 | Disposed |
| June 6, 2014 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 8,000 | Disposed |
| Feb. 4, 2014 | PRTA | Stock Option (right to buy) | Ordinary Shares | $29.81 | Feb. 4, 2024 | 12,000 | Acquired |
| June 3, 2013 | PRTA | Stock Option (right to buy) | Ordinary Shares | $9.75 | June 2, 2023 | 45,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).