Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 94 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

94 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 13, 2025 PTN P 1,500 $150000.00 $225,000,000 1,672,940 Direct +0.09% Acquired -100.0% (price as of 2026-10-05)
June 13, 2025 PTN P 2,727,272 · · 3,060,655 Direct +818.06% Acquired (price as of 2026-10-05)
Dec. 27, 2022 PTN P 5,000 $2.23 $11,150 288,604 Direct +1.76% Acquired -91.5% (price as of 2026-10-05)
Dec. 27, 2022 PTN P 5,000 $2.23 $11,150 293,604 Direct +1.73% Acquired -91.5% (price as of 2026-10-05)
June 30, 2021 PTN P 64,400 $0.62 $39,928 8,694,451 Direct +0.75% Acquired -98.8% (price as of 2026-10-05)
June 30, 2021 PTN P 10,600 $0.61 $6,466 8,705,051 Direct +0.12% Acquired -98.8% (price as of 2026-10-05)

Showing latest 100 of 191 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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Dec. 9, 2025 PTN Stock Option (Right to Buy) Common Stock (163) $362.50 June 22, 2032 163 Acquired
Dec. 9, 2025 PTN Stock Option (Right to Buy) Common Stock (595) $109.50 June 20, 2033 595 Acquired
Dec. 9, 2025 PTN Stock Option (Right to Buy) Common Stock (568) $91.50 June 4, 2034 568 Acquired
June 13, 2025 PTN Series I warrants Common Stock (2,727,272) $0.11 · 2,727,272 Acquired
July 15, 2024 PTN Stock Option (Right to Buy) Common Stock (113,500) $1.83 June 22, 2032 113,500 Acquired
June 4, 2024 PTN Stock Option (Right to Buy) Common Stock (13,565) $14.50 June 16, 2030 13,565 Acquired
June 4, 2024 PTN Stock Option (Right to Buy) Common Stock (14,357) $13.75 June 22, 2031 14,357 Acquired
June 4, 2024 PTN Stock Option (Right to Buy) Common Stock (7,912) $7.25 June 22, 2032 7,912 Acquired
May 6, 2024 PTN Stock Option (Right to Buy) Common Stock (21,993) $2.19 June 20, 2033 21,993 Acquired
June 20, 2023 PTN Stock Option (Right to Buy) Common Stock (103,500) $2.19 June 22, 2033 103,500 Acquired
June 20, 2023 PTN Stock Option (Right to Buy) Common Stock (8,739) $14.50 June 16, 2030 8,739 Acquired
June 20, 2023 PTN Stock Option (Right to Buy) Common Stock (8,984) $13.75 June 22, 2031 8,984 Acquired
June 20, 2023 PTN Stock Option (Right to Buy) Common Stock (4,231) $7.25 June 22, 2032 4,231 Acquired
June 24, 2022 PTN Stock Option (Right to Buy) Common Stock (575,000) $0.55 June 22, 2031 575,000 Acquired
June 24, 2022 PTN Stock Option (Right to Buy) Common Stock (215,625) $0.55 June 22, 2031 215,625 Acquired
June 22, 2022 PTN Stock Option (Right to Buy) Common stock (677,000) $0.29 June 22, 2032 677,000 Acquired
June 22, 2022 PTN Stock Option (Right to Buy) Common Stock (245,105) $0.58 June 16, 2030 245,105 Acquired
June 22, 2021 PTN Stock option (right to buy) Common stock (575,000) $0.55 June 22, 2031 575,000 Acquired
June 22, 2021 PTN Stock option (right to buy) Common stock (208,943) $0.58 June 16, 2030 208,943 Acquired
June 25, 2020 PTN Stock Option (Right to Buy) Common Stock (535,750) $0.58 June 16, 2030 535,750 Acquired
June 16, 2020 PTN Stock Option (Right to Buy) Common Stock (535,750) $0.58 June 16, 2030 535,750 Acquired
June 24, 2019 PTN Stock Option (right to buy) Common Stock (744,000) $1.34 June 24, 2029 744,000 Acquired
June 24, 2019 PTN Stock Option (right to buy) Common Stock (312,500) $0.85 Dec. 12, 2027 312,500 Acquired
June 26, 2018 PTN Stock Option (right to buy) Common Stock (533,000) $1.00 June 26, 2028 533,000 Acquired
June 26, 2018 PTN Stock Option (right to buy) Common Stock (187,500) $0.85 Dec. 12, 2027 187,500 Acquired
Dec. 12, 2017 PTN Stock Option (right to acquire) Common Stock (625,000) $0.85 Dec. 12, 2027 625,000 Acquired
June 20, 2017 PTN Stock Option (right to acquire) Common Stock (938,000) $0.37 June 20, 2027 938,000 Acquired
Sept. 7, 2016 PTN Stock Option (right to acquire) Common (432,000) $0.68 Sept. 7, 2026 432,000 Acquired
June 11, 2015 PTN restricted share units common stock (210,000) · June 11, 2017 210,000 Acquired
June 11, 2015 PTN Stock option (right to buy) common stock (300,000) $1.08 June 11, 2025 300,000 Acquired
June 25, 2014 PTN restricted share units common stock (175,000) · June 25, 2016 175,000 Acquired
June 25, 2014 PTN stock option (right to buy) common stock (175,000) $1.02 June 25, 2024 175,000 Acquired
June 27, 2013 PTN restricted stock units common stock (220,000) · June 27, 2015 220,000 Acquired
June 27, 2013 PTN stock option (right to buy) common stock (275,000) $0.62 June 27, 2023 275,000 Acquired
June 22, 2013 PTN restricted stock units common stock (125,000) · June 22, 2013 125,000 Disposed
July 17, 2012 PTN restricted stock units common stock (112,500) · July 17, 2014 112,500 Acquired
July 17, 2012 PTN stock option (right to buy) common stock (150,000) $0.72 July 17, 2022 150,000 Acquired
July 17, 2012 PTN restricted stock units common stock (110,000) · July 17, 2014 110,000 Acquired
July 17, 2012 PTN stock option (right to buy) common stock (135,000) $0.72 July 17, 2022 135,000 Acquired
June 22, 2011 PTN restricted stock units common stock (250,000) · June 22, 2013 250,000 Acquired
June 22, 2011 PTN stock option (right to buy) common stock (300,000) $1.00 June 22, 2021 300,000 Acquired
March 15, 2011 PTN restricted stock unit common stock (12,500) · March 15, 2011 12,500 Disposed
March 1, 2011 PTN Series B common stock purchase warrant common stock (45,652) $1.00 March 2, 2017 45,652 Acquired
March 1, 2011 PTN Series A common stock purchase warrant common stock (4,348) $1.00 March 1, 2016 4,348 Acquired
Sept. 15, 2010 PTN restricted stock units common stock (12,500) · March 15, 2011 12,500 Disposed
July 21, 2010 PTN restricted stock unit common stock (250,000) $0.00 March 15, 2011 250,000 Acquired
March 26, 2010 PTN restricted stock unit common stock (375,000) · March 26, 2010 375,000 Disposed
Dec. 31, 2009 PTN restricted stock unit common stock (250,000) · Dec. 31, 2009 250,000 Disposed
July 1, 2009 PTN stock option (right to buy) common stock (250,000) $0.28 July 1, 2019 250,000 Acquired
Dec. 10, 2008 PTN restricted stock unit common stock (250,000) $0.00 Dec. 31, 2009 250,000 Acquired
July 1, 2008 PTN stock option (right to buy) common stock (250,000) $0.18 July 1, 2018 250,000 Acquired
March 26, 2008 PTN stock option (right to buy) common stock (46,875) $0.66 March 26, 2018 46,875 Acquired
March 26, 2008 PTN stock option (right to buy) common stock (46,875) $0.50 March 26, 2018 46,875 Acquired
March 26, 2008 PTN stock option (right to buy) common stock (281,250) $0.28 March 26, 2018 281,250 Acquired
March 26, 2008 PTN restricted stock units common stock (375,000) $0.00 Oct. 6, 2016 375,000 Acquired
Oct. 6, 2006 PTN restricted stock unit common stock (375,000) $0.00 Oct. 6, 2010 375,000 Acquired
Oct. 6, 2006 PTN stock option (right to buy) common stock (125,000) $2.49 Oct. 6, 2016 125,000 Acquired
July 1, 2005 PTN stock option (right to buy) common stock (83,000) $1.75 July 1, 2015 83,000 Acquired
July 1, 2005 PTN stock option (right to buy) common stock (75,000) $3.75 July 1, 2015 75,000 Acquired
July 1, 2005 PTN stock option (right to buy) common stock (200,000) $4.21 · 200,000 Disposed
July 1, 2004 PTN stock option (right to buy) common stock (200,000) $4.21 July 1, 2014 200,000 Acquired

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

Compensation (DEF 14A)

08

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

PTN

Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2025 $721,000 · · · · · $17,500 $738,500
2024 $700,000 · $195,400 $178,700 $357,000 · $17,250 $1,448,350
2023 $700,000 · $170,500 $154,300 $2,625 · $16,500 $1,303,800

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