Mark Elliott Boulding

CIK 1578852 · View on SEC EDGAR ↗

Insider

First SEC filing: June 19, 2013 · Latest: June 19, 2013

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Insider at

Insider transactions

0 buys (P) 14 sells (S) Net: $-1,459,113 + 57 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

57 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 17, 2026 PTCT S 10b5-1 1,844 $72.39 $133,487 106,241 Direct -1.71% Disposed -2.5% (price as of 2026-08-21)
Aug. 17, 2026 PTCT S 10b5-1 969 $72.90 $70,640 105,272 Direct -0.91% Disposed -3.1% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 745 $86.38 $64,353 105,272 Direct -0.70% Disposed -18.3% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 645 $85.84 $55,367 106,017 Direct -0.60% Disposed -17.7% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 1,036 $84.41 $87,449 106,662 Direct -0.96% Disposed -16.3% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 387 $83.10 $32,160 107,698 Direct -0.36% Disposed -15.0% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 601 $86.38 $51,914 105,272 Direct -0.57% Disposed -18.3% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 519 $85.84 $44,551 105,873 Direct -0.49% Disposed -17.7% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 833 $84.41 $70,314 106,392 Direct -0.78% Disposed -16.3% (price as of 2026-08-21)
July 6, 2026 PTCT S 10b5-1 313 $83.10 $26,010 107,225 Direct -0.29% Disposed -15.0% (price as of 2026-08-21)
June 17, 2026 PTCT S 10b5-1 309 $79.25 $24,488 105,272 Direct -0.29% Disposed -10.9% (price as of 2026-08-21)
June 17, 2026 PTCT S 10b5-1 1,703 $78.50 $133,686 105,581 Direct -1.59% Disposed -10.1% (price as of 2026-08-21)
June 17, 2026 PTCT S 10b5-1 1,850 $79.24 $146,594 105,272 Direct -1.73% Disposed -10.9% (price as of 2026-08-21)
June 17, 2026 PTCT S 10b5-1 6,600 $78.50 $518,100 107,122 Direct -5.80% Disposed -10.1% (price as of 2026-08-21)
Dec. 3, 2024 PTCT S 10b5-1 600 $53.04 $31,824 92,389 Direct -0.65% Disposed 33.1% (price as of 2026-08-21)
Dec. 3, 2024 PTCT S 10b5-1 6,315 $53.14 $335,579 93,794 Direct -6.31% Disposed 32.9% (price as of 2026-08-21)
Dec. 3, 2024 PTCT S 10b5-1 1,405 $54.05 $75,940 92,389 Direct -1.50% Disposed 30.6% (price as of 2026-08-21)
Dec. 3, 2024 PTCT S 10b5-1 1,900 $53.13 $100,947 92,477 Direct -2.01% Disposed 32.9% (price as of 2026-08-21)
Dec. 3, 2024 PTCT S 10b5-1 88 $54.14 $4,764 92,389 Direct -0.10% Disposed 30.4% (price as of 2026-08-21)
Dec. 2, 2024 PTCT S 10b5-1 1,960 $52.17 $102,253 92,389 Direct -2.08% Disposed 35.3% (price as of 2026-08-21)
Dec. 2, 2024 PTCT S 10b5-1 83,640 $52.26 $4,371,026 92,389 Direct -47.51% Disposed 35.1% (price as of 2026-08-21)
Jan. 30, 2024 PTCT S 10b5-1 794 $27.25 $21,636 71,189 Direct -1.10% Disposed 159.1% (price as of 2026-08-21)
Jan. 9, 2024 PTCT S 10b5-1 1,938 $29.01 $56,221 71,983 Direct -2.62% Disposed 143.4% (price as of 2026-08-21)
Jan. 8, 2024 PTCT S 10b5-1 1,457 $28.64 $41,728 73,921 Direct -1.93% Disposed 146.5% (price as of 2026-08-21)
April 17, 2023 PTCT S 10b5-1 3,292 $51.42 $169,275 75,378 Direct -4.18% Disposed 37.3% (price as of 2026-08-21)
April 17, 2023 PTCT S 10b5-1 58,631 $51.42 $3,014,806 75,378 Direct -43.75% Disposed 37.3% (price as of 2026-08-21)
Jan. 31, 2023 PTCT S 812 $45.63 $37,052 75,378 Direct -1.07% Disposed 54.7% (price as of 2026-08-21)
Jan. 11, 2023 PTCT S 495 $44.36 $21,958 76,190 Direct -0.65% Disposed 59.2% (price as of 2026-08-21)
Jan. 10, 2023 PTCT S 590 $42.93 $25,329 76,685 Direct -0.76% Disposed 64.5% (price as of 2026-08-21)
Jan. 9, 2023 PTCT S 835 $41.66 $34,786 77,275 Direct -1.07% Disposed 69.5% (price as of 2026-08-21)
Oct. 18, 2022 PTCT S 10b5-1 10 $55.45 $554 61,110 Direct -0.02% Disposed 27.3% (price as of 2026-08-21)
Oct. 18, 2022 PTCT S 10b5-1 289 $55.04 $15,907 61,110 Direct -0.47% Disposed 28.3% (price as of 2026-08-21)
Oct. 17, 2022 PTCT S 10b5-1 200 $55.00 $11,000 61,110 Direct -0.33% Disposed 28.4% (price as of 2026-08-21)
Oct. 17, 2022 PTCT S 10b5-1 6,402 $55.00 $352,110 61,110 Direct -9.48% Disposed 28.4% (price as of 2026-08-21)
Sept. 20, 2022 PTCT S 10b5-1 876 $55.00 $48,180 61,110 Direct -1.41% Disposed 28.4% (price as of 2026-08-21)
Sept. 20, 2022 PTCT S 10b5-1 300 $55.00 $16,500 61,110 Direct -0.49% Disposed 28.4% (price as of 2026-08-21)
April 13, 2022 PTCT S 10b5-1 2,276 $45.17 $102,807 61,110 Direct -3.59% Disposed 56.3% (price as of 2026-08-21)
April 5, 2022 PTCT S 10b5-1 5 $45.00 $225 61,110 Direct -0.01% Disposed 56.9% (price as of 2026-08-21)
Feb. 10, 2022 PTCT S 10b5-1 15,653 $45.03 $704,855 61,110 Direct -20.39% Disposed 56.8% (price as of 2026-08-21)
Feb. 10, 2022 PTCT S 10b5-1 2,282 $45.03 $102,758 61,110 Direct -3.60% Disposed 56.8% (price as of 2026-08-21)
Feb. 1, 2022 PTCT S 779 $40.00 $31,160 61,110 Direct -1.26% Disposed 76.5% (price as of 2026-08-21)
Jan. 7, 2022 PTCT S 885 $38.52 $34,090 47,489 Direct -1.83% Disposed 83.3% (price as of 2026-08-21)
Sept. 2, 2021 PTCT S 10b5-1 3,363 $45.01 $151,369 48,374 Direct -6.50% Disposed 56.9% (price as of 2026-08-21)

Showing latest 100 of 223 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
Aug. 17, 2026 PTCT Stock Option (Right to Buy) Common Stock (2,813) $25.69 Feb. 14, 2034 2,813 Disposed
July 6, 2026 PTCT Stock Option (Right to Buy) Common Stock (2,813) $46.54 Jan. 2, 2035 2,813 Disposed
July 6, 2026 PTCT Stock Option (Right to Buy) Common Stock (2,266) $39.42 Jan. 4, 2033 2,226 Disposed
June 17, 2026 PTCT Stock Option (Right to Buy) Common Stock (8,510) $46.54 Jan. 2, 2035 8,510 Disposed
June 17, 2026 PTCT Stock Option (Right to Buy) Common Stock (2,012) $46.54 Jan. 2, 2035 2,012 Disposed
Dec. 3, 2024 PTCT Stock Option (Right to Buy) Common Stock (600) $33.02 Jan. 2, 2029 600 Disposed
Dec. 3, 2024 PTCT Stock Option (Right to Buy) Common Stock (7,720) $33.02 Jan. 2, 2029 7,720 Disposed
Dec. 3, 2024 PTCT Stock Option (Right to Buy) Common Stock (1,988) $33.02 Jan. 2, 2029 1,988 Disposed
Dec. 2, 2024 PTCT Stock Option (Right to Buy) Common Stock (1,960) $51.00 Jan. 2, 2025 1,960 Disposed
Dec. 2, 2024 PTCT Stock Option (Right to Buy) Common Stock (83,640) $51.00 Jan. 2, 2025 83,640 Disposed
Feb. 15, 2024 PTCT Stock Option (Right to Buy) Common Stock (45,000) $25.69 Feb. 14, 2034 45,000 Acquired
April 17, 2023 PTCT Stock Option (Right to Buy) Common Stock (3,292) $30.86 Jan. 3, 2026 3,292 Disposed
April 17, 2023 PTCT Stock Option (Right to Buy) Common Stock (58,631) $30.86 Jan. 3, 2026 58,631 Disposed
Jan. 5, 2023 PTCT Stock Option (Right to Buy) Common Stock (36,250) $39.42 Jan. 4, 2033 36,250 Acquired
Oct. 18, 2022 PTCT Stock Option (Right to Buy) Common Stock (10) $30.86 Jan. 3, 2026 10 Disposed
Oct. 18, 2022 PTCT Stock Option (Right to Buy) Common Stock (289) $30.86 Jan. 3, 2026 289 Disposed
Oct. 17, 2022 PTCT Stock Option (Right to Buy) Common Stock (200) $30.86 Jan. 3, 2026 200 Disposed
Oct. 17, 2022 PTCT Stock Option (Right to Buy) Common Stock (6,402) $30.86 Jan. 3, 2026 6,402 Disposed
Sept. 20, 2022 PTCT Stock Option (Right to Buy) Common Stock (70,000) $30.86 Jan. 3, 2026 876 Disposed
Sept. 20, 2022 PTCT Stock Option (Right to Buy) Common Stock (69,124) $30.86 Jan. 3, 2026 300 Disposed
April 13, 2022 PTCT Stock Option (Right to Buy) Common Stock (2,276) $11.23 Jan. 2, 2027 2,276 Disposed
April 5, 2022 PTCT Stock Option (Right to Buy) Common Stock (5) $11.23 Jan. 2, 2027 5 Disposed
Feb. 10, 2022 PTCT Stock Option (Right to Buy) Common Stock (15,653) $18.01 Jan. 2, 2028 15,653 Disposed
Feb. 10, 2022 PTCT Stock Option (Right to Buy) Common Stock (2,282) $11.23 Jan. 2, 2027 2,282 Disposed
Jan. 7, 2022 PTCT Stock Option (Right to Buy) Common Stock (54,000) $38.10 Jan. 6, 2032 54,000 Acquired
Sept. 2, 2021 PTCT Stock Option (Right to Buy) Common Stock (3,363) $18.01 Jan. 2, 2028 3,363 Disposed
July 9, 2021 PTCT Stock Option (Right to Buy) Common Stock (244) $18.01 Jan. 2, 2028 244 Disposed
July 9, 2021 PTCT Stock Option (Right to Buy) Common Stock (227) $18.01 Jan. 2, 2028 227 Disposed
July 9, 2021 PTCT Stock Option (Right to Buy) Common Stock (410) $18.01 Jan. 2, 2028 410 Disposed
July 9, 2021 PTCT Stock Option (Right to Buy) Common Stock (548) $18.01 Jan. 2, 2028 548 Disposed
July 8, 2021 PTCT Stock Option (Right to Buy) Common Stock (1,405) $18.01 Jan. 2, 2028 1,405 Disposed
July 8, 2021 PTCT Stock Option (Right to Buy) Common Stock (1,800) $18.01 Jan. 2, 2028 1,800 Disposed
July 8, 2021 PTCT Stock Option (Right to Buy) Common Stock (1,500) $18.01 Jan. 2, 2028 1,500 Disposed
July 8, 2021 PTCT Stock Option (Right To Buy) Common Stock (1,100) $18.01 Jan. 2, 2028 1,100 Disposed
July 8, 2021 PTCT Stock Option (Right to Buy) Common Stock (1,000) $11.23 Jan. 2, 2027 1,000 Disposed
July 8, 2021 PTCT Stock Option (Right To Buy) Common Stock (1,000) $11.23 Jan. 2, 2027 1,000 Disposed
Jan. 6, 2021 PTCT Stock Option (Right to Buy) Common Stock (59,500) $66.49 Jan. 5, 2031 59,500 Acquired
July 7, 2020 PTCT Stock Option (Right To Buy) Common Stock (17,500) $18.01 Jan. 2, 2028 17,500 Disposed
July 7, 2020 PTCT Stock Option (Right To Buy) Common Stock (13,125) $11.23 Jan. 2, 2027 13,125 Disposed
Jan. 29, 2020 PTCT Stock Option (Right To Buy) Common Stock (59,500) $51.16 Jan. 28, 2030 59,500 Acquired
July 5, 2019 PTCT Stock Option (Right To Buy) Common Stock (4,375) $18.01 Jan. 2, 2028 4,375 Disposed
July 5, 2019 PTCT Stock Option (Right To Buy) Common Stock (4,375) $18.01 Jan. 2, 2028 4,375 Disposed
July 5, 2019 PTCT Stock Option (Right To Buy) Common Stock (3,281) $11.23 Jan. 2, 2027 3,281 Disposed
July 5, 2019 PTCT Stock Option (Right To Buy) Common Stock (3,281) $11.23 Jan. 2, 2027 3,281 Disposed
July 1, 2019 PTCT Stock Option (Right To Buy) Common Stock (17,500) $18.01 Jan. 2, 2028 17,500 Disposed
July 1, 2019 PTCT Stock Option (Right To Buy) Common Stock (2,142) $11.23 Jan. 2, 2027 2,142 Disposed
July 1, 2019 PTCT Stock Option (Right To Buy) Common Stock (70,849) $27.05 Jan. 28, 2024 70,849 Disposed
July 1, 2019 PTCT Stock Option (Right To Buy) Common Stock (7,307) $27.05 Jan. 28, 2024 7,307 Disposed
July 1, 2019 PTCT Stock Option (Right To Buy) Common Stock (384) $10.85 May 15, 2023 384 Disposed
July 1, 2019 PTCT Stock Option (Right To Buy) Common Stock (5,910) $10.85 May 15, 2023 5,910 Disposed
June 28, 2019 PTCT Stock Option (Right To Buy) Common Stock (1,140) $11.23 Jan. 2, 2027 1,140 Disposed
June 28, 2019 PTCT Stock Option (Right To Buy) Common Stock (22,968) $11.23 Jan. 2, 2027 22,968 Disposed
June 28, 2019 PTCT Stock Option (Right To Buy) Common Stock (1,844) $27.05 Jan. 28, 2024 1,844 Disposed
June 28, 2019 PTCT Stock Option (Right To Buy) Common Stock (44,090) $10.85 May 15, 2023 44,090 Disposed
June 28, 2019 PTCT Stock Option (Right To Buy) Common Stock (7,533) $10.85 May 15, 2023 7,533 Disposed
Jan. 22, 2019 PTCT Stock Option (Right to Buy) Common Stock (17,500) $33.02 Jan. 21, 2029 17,500 Acquired
Jan. 22, 2019 PTCT Stock Option (Right to Buy) Common Stock (72,500) $33.02 Jan. 21, 2029 72,500 Acquired
Jan. 3, 2018 PTCT Stock Option (Right To Buy) Common Stock (70,000) $18.01 Jan. 2, 2028 70,000 Acquired
Jan. 3, 2017 PTCT Stock Option (Right To Buy) Common Stock (52,500) $11.23 Jan. 2, 2027 52,500 Acquired
Jan. 4, 2016 PTCT Stock Option (right to buy) Common Stock (70,000) $30.86 Jan. 3, 2026 70,000 Acquired
June 8, 2015 PTCT Stock Option (Right to Buy) Common Stock (50,000) $10.85 May 15, 2023 50,000 Disposed
June 8, 2015 PTCT Stock Option (Right to Buy) Common Stock (12,083) $10.85 May 15, 2023 12,083 Disposed
Jan. 2, 2015 PTCT Stock Option (right to buy) Common Stock (85,600) $51.00 Jan. 1, 2025 85,600 Acquired
Jan. 28, 2014 PTCT Stock Option (right to buy) Common Stock (80,000) $27.05 Jan. 27, 2024 80,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 13 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
June 19, 2013 PTCT Common Stock 42,284 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (20,000) 20,000 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (100,000) 100,000 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (191) 191 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (233) 233 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (200) 200 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (233) 233 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (195) 195 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (166) 166 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (216) 216 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (101) 101 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (106) 106 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (602) 602 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
2019 $475,000 $237,500 $20,925 $2,509,994
2018 $434,120 $312,567 $10,530 $1,604,903
2017 $434,120 $2,000 $164,966 $13,743 $1,121,909

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.