David P Southwell

CIK 1251553 · View on SEC EDGAR ↗

Insider

First SEC filing: July 15, 2021 · Latest: July 15, 2021

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Insider at

Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 65 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

65 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
April 15, 2024 RCKTW S 10,000 $24.05 $240,500 114,784 Direct -8.01% Disposed -100.0% (price as of 2026-08-21)
April 12, 2024 RCKTW S 10,284 $25.16 $258,745 95,160 Direct -9.75% Disposed -100.0% (price as of 2026-08-21)
April 12, 2024 RCKTW S 59,716 $24.22 $1,446,322 105,444 Direct -36.16% Disposed -100.0% (price as of 2026-08-21)
April 17, 2023 PTCT S 10b5-1 6,241 $50.69 $316,356 15,688 Direct -28.46% Disposed 39.3% (price as of 2026-08-21)
April 17, 2023 PTCT S 10b5-1 5,188 $51.43 $266,819 10,500 Direct -33.07% Disposed 37.3% (price as of 2026-08-21)
March 31, 2023 PTCT S 10b5-1 2,571 $50.05 $128,679 10,500 Direct -19.67% Disposed 41.1% (price as of 2026-08-21)
March 27, 2023 PTCT S 10b5-1 4,599 $44.71 $205,621 15,901 Direct -22.43% Disposed 57.9% (price as of 2026-08-21)
March 27, 2023 PTCT S 10b5-1 5,301 $45.41 $240,718 10,600 Direct -33.34% Disposed 55.5% (price as of 2026-08-21)
March 27, 2023 PTCT S 10b5-1 100 $46.03 $4,603 10,500 Direct -0.94% Disposed 53.4% (price as of 2026-08-21)
May 18, 2022 TCRX P 10,000 $3.55 $35,500 171,569 Direct +6.19% Acquired -78.0% (price as of 2026-08-21)
May 18, 2022 TCRX P 15,000 $3.62 $54,300 161,569 Direct +10.23% Acquired -78.5% (price as of 2026-08-21)
Sept. 8, 2021 TCRX P 11,000 $8.73 $96,030 97,899 Direct +12.66% Acquired -91.1% (price as of 2026-08-21)
Oct. 16, 2020 PTCT S 10b5-1 500 $52.18 $26,090 1,650 Direct -23.26% Disposed 35.3% (price as of 2026-08-21)
Oct. 16, 2020 PTCT S 10b5-1 11,500 $51.52 $592,480 2,150 Direct -84.25% Disposed 37.1% (price as of 2026-08-21)
Oct. 16, 2020 PTCT S 10b5-1 700 $52.18 $36,526 1,650 Direct -29.79% Disposed 35.3% (price as of 2026-08-21)
Oct. 16, 2020 PTCT S 10b5-1 14,300 $51.50 $736,450 2,350 Direct -85.89% Disposed 37.1% (price as of 2026-08-21)
Dec. 13, 2018 RCKTW S 38,768 $15.19 $588,886 95,160 Direct -28.95% Disposed -100.0% (price as of 2026-08-21)
Dec. 7, 2018 RCKTW S 4,923 $14.91 $73,402 133,928 Direct -3.55% Disposed -100.0% (price as of 2026-08-21)
Dec. 6, 2018 RCKTW S 52,809 $15.15 $800,056 138,851 Direct -27.55% Disposed -100.0% (price as of 2026-08-21)
Jan. 6, 2017 RCKTW P 60,000 $1.75 $105,000 62,765 Direct +2169.98% Acquired -99.9% (price as of 2026-08-21)
July 6, 2015 PTCT S 10b5-1 700 $48.22 $33,754 0 Direct -100.00% Disposed 46.4% (price as of 2026-08-21)
July 6, 2015 PTCT S 10b5-1 22,904 $47.50 $1,087,940 700 Direct -97.03% Disposed 48.7% (price as of 2026-08-21)
March 23, 2015 PTCT S 10b5-1 117 $69.91 $8,179 8,604 Direct -1.34% Disposed 1.0% (price as of 2026-08-21)
March 23, 2015 PTCT S 10b5-1 2,200 $68.99 $151,778 8,721 Direct -20.14% Disposed 2.3% (price as of 2026-08-21)
March 21, 2014 PTCT S 10b5-1 1,200 $30.54 $36,648 12,038 Direct -9.06% Disposed 131.2% (price as of 2026-08-21)
March 21, 2014 PTCT S 10b5-1 1,117 $31.35 $35,018 10,921 Direct -9.28% Disposed 125.2% (price as of 2026-08-21)

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
June 18, 2026 RCKTW Stock Option (Right to Buy) Common Stock (64,860) $3.35 June 18, 2036 64,860 Acquired
Jan. 2, 2026 PTCT Stock Option (Right to Buy) Common Stock (3,475) $76.74 Jan. 1, 2036 3,475 Acquired
Jan. 3, 2025 PTCT Stock Option (Right to Buy) Common Stock (8,800) $46.54 Jan. 2, 2035 8,800 Acquired
June 13, 2024 RCKTW Stock Option (Right to Buy) Common Stock (23,944) $22.86 June 13, 2034 23,944 Acquired
April 15, 2024 RCKTW Stock Option (Right to Buy) Common Stock (29,624) $4.34 Aug. 28, 2024 29,624 Disposed
April 12, 2024 RCKTW Stock Option (Right to Buy) Common Stock (70,000) $4.34 Aug. 28, 2024 70,000 Disposed
Feb. 15, 2024 PTCT Stock Option (Right to Buy) Common Stock (10,000) $25.69 Feb. 14, 2034 10,000 Acquired
June 22, 2023 RCKTW Stock Option (Right to Buy) Common Stock (25,850) $21.56 June 22, 2033 25,850 Acquired
April 17, 2023 PTCT Stock Option (Right to Buy) Common Stock (11,429) $18.01 Jan. 2, 2028 11,429 Disposed
March 31, 2023 PTCT Stock Option (Right to Buy) Common Stock (2,571) $18.01 Jan. 2, 2028 2,571 Disposed
March 27, 2023 PTCT Stock Option (Right to Buy) Common Stock (10,000) $27.05 Jan. 28, 2024 10,000 Disposed
Feb. 2, 2023 TCRX Stock Option (Right to Buy) Voting Common Stock (100,000) $1.81 Feb. 1, 2033 100,000 Acquired
Jan. 5, 2023 PTCT Stock Option (Right to Buy) Common Stock (10,000) $39.42 Jan. 4, 2033 10,000 Acquired
July 25, 2022 TCRX Stock Option (Right to Buy) Voting Common Stock (100,000) $3.27 July 24, 2032 100,000 Acquired
June 13, 2022 RCKTW Stock Option (Right to Buy) Common Stock (47,745) $10.77 June 13, 2032 47,745 Acquired
Jan. 18, 2022 TCRX Stock Option (Right to Buy) Voting Common Stock (275,000) $4.85 Jan. 17, 2032 275,000 Acquired
Jan. 7, 2022 PTCT Stock Option (Right To Buy) Common Stock (12,000) $38.10 Jan. 6, 2032 12,000 Acquired
Dec. 23, 2021 TCRX Stock Option (Right to Buy) Voting Common Stock (48,670) $1.97 Feb. 4, 2029 48,670 Disposed
June 14, 2021 RCKTW Stock Option (Right to Buy) Common Stock (12,236) $47.25 June 14, 2031 12,236 Acquired
Jan. 6, 2021 PTCT Stock Option (Right To Buy) Common Stock (10,000) $66.49 Jan. 5, 2031 10,000 Acquired
Oct. 16, 2020 PTCT Stock Option (Right to Buy) Common Stock (12,000) $11.23 Jan. 2, 2027 12,000 Disposed
Oct. 16, 2020 PTCT Stock Option (Right to Buy) Common Stock (15,000) $10.85 May 15, 2023 15,000 Disposed
June 16, 2020 RCKTW Stock Option (Right to Buy) Common Stock (20,000) $19.90 June 16, 2030 20,000 Acquired
Jan. 29, 2020 PTCT Stock Option (Right To Buy) Common Stock (10,000) $51.16 Jan. 28, 2030 10,000 Acquired
Jan. 28, 2019 RCKTW Stock Option (Right to Buy) Common Stock (30,000) $14.56 Jan. 28, 2029 30,000 Acquired
Jan. 22, 2019 PTCT Stock Option (Right to Buy) Common Stock (14,000) $33.02 Jan. 21, 2029 14,000 Acquired
Nov. 28, 2018 RCKTW Restricted Stock Units Common Stock (153,125) — — 65,625 Disposed
June 5, 2018 SPRO Stock Option (right to buy) Common Stock (6,073) $11.54 June 5, 2028 6,073 Acquired
April 2, 2018 RCKTW Restricted Stock Units Common Stock (21,875) — — 21,875 Acquired
March 30, 2018 SPRO Stock Option (right to buy) Common Stock (12,146) $14.25 March 30, 2028 12,146 Acquired
March 29, 2018 RCKTW Stock Option (Right to Buy) Common Stock (40,000) $18.75 March 29, 2028 40,000 Acquired
Jan. 3, 2018 PTCT Stock Option (Right To Buy) Common Stock (14,000) $18.01 Jan. 2, 2028 14,000 Acquired
Jan. 23, 2017 RCKTW Restricted Stock Units Common Stock (350,000) — — 350,000 Acquired
Jan. 23, 2017 RCKTW Restricted Stock Units Common Stock (350,000) — — 350,000 Acquired
Jan. 3, 2017 PTCT Stock Option (Right To Buy) Common Stock (12,000) $11.23 Jan. 2, 2027 12,000 Acquired
March 22, 2016 RCKTW Stock Options (Right to Buy) Common Stock (215,000) $7.56 March 21, 2026 215,000 Acquired
Jan. 4, 2016 PTCT Stock Option (right to buy) Common Stock (12,000) $30.86 Jan. 3, 2026 12,000 Acquired
July 6, 2015 PTCT Stock Option (right to buy) Common Stock (15,000) $10.85 May 15, 2023 15,000 Disposed
June 24, 2015 RCKTW Stock Options (Right to Buy) Common Stock (150,000) $5.03 June 23, 2025 150,000 Acquired
Jan. 2, 2015 PTCT Stock Option (right to buy) Common Stock (12,000) $51.00 Jan. 1, 2025 12,000 Acquired
Jan. 28, 2014 PTCT Stock Option (right to buy) Common Stock (10,000) $27.05 Jan. 27, 2024 10,000 Acquired

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

Initial ownership (Form 3) 15 holdings

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

Date Ticker Security Shares Ownership
July 15, 2021 TCRX Voting Common Stock 86,899 Direct
July 15, 2021 TCRX Employee Stock Option (right to buy)→ Voting Common Stock (121,350) 121,350 Direct
July 15, 2021 TCRX Employee Stock Option (right to buy)→ Voting Common Stock (69,831) 69,831 Direct
July 15, 2021 TCRX Employee Stock Option (right to buy)→ Voting Common Stock (200,822) 200,822 Direct
July 15, 2021 TCRX Employee Stock Option (right to buy)→ Voting Common Stock (518,504) 518,504 Direct
Feb. 17, 2015 RCKTW Stock Options (right to buy)→ Common Stock (398,497) 398,497 Direct
June 19, 2013 PTCT Common Stock 13,238 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (30,000) 30,000 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (110) 110 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (110) 110 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (95) 95 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (108) 108 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (83) 83 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (83) 83 Direct
June 19, 2013 PTCT Stock Option (right to buy)→ Common Stock (125) 125 Direct

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

RCKTW

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2016 $465,508 $221,231 $2,275,000 $1,093,470 — — $5,273 $4,060,482

TCRX

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2023 $153,472 — — $135,250 — — $1,003,724 $1,292,446
2022 $622,239 — — $1,169,353 $342,232 — $8,920 $2,142,743
2021 $550,000 — — $1,923,650 $302,500 — $8,935 $2,785,085

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