Insider at

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Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 58 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

58 other filings hidden
DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
June 10, 2021 PRPO S 69,962 $3.99 $279,148 692,092 Direct -9.18% Disposed -69.9% (price as of 2026-10-05)
June 10, 2021 PRPO S 69,962 $3.99 $279,148 750,741 Direct -8.52% Disposed -69.9% (price as of 2026-10-05)
May 27, 2021 PRPO S 40,178 $3.99 $160,310 762,054 Direct -5.01% Disposed -69.9% (price as of 2026-10-05)
May 27, 2021 PRPO S 40,178 $3.99 $160,310 820,703 Direct -4.67% Disposed -69.9% (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.

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DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 2, 2026 PRPO Stock Option (Right to Buy) Common Stock (1,500) $23.82 Jan. 2, 2036 1,500 Acquired
Jan. 14, 2025 PRPO Stock Option (Right to Buy) Common Stock (1,000) $6.06 Jan. 14, 2035 1,000 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (2,000) · Jan. 11, 2032 2,000 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (2,000) $30.80 Jan. 11, 2032 2,000 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (1,250) · March 8, 2031 1,250 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (1,250) $64.40 March 8, 2031 1,250 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (1,250) · Jan. 4, 2031 1,250 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (1,250) $42.00 Jan. 4, 2031 1,250 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (200) · July 2, 2030 200 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (200) $26.00 July 2, 2030 200 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (375) · Jan. 16, 2030 375 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (375) $42.80 Jan. 16, 2030 375 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (250) · March 18, 2029 250 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (250) $45.00 March 18, 2029 250 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (258) · Feb. 16, 2028 258 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (258) $213.00 Feb. 16, 2028 258 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (103) · Feb. 16, 2028 103 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (103) $213.00 Feb. 16, 2028 103 Disposed
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (23) · Aug. 11, 2027 23 Acquired
Aug. 31, 2024 PRPO Stock Option (Right to Buy) Common Stock (23) $408.00 Aug. 11, 2027 23 Disposed
June 21, 2024 PRPO Stock Option (Right to Buy) Common Stock (1,000) $4.98 June 21, 2034 1,000 Acquired
Jan. 6, 2023 PRPO Stock Option (Right to Buy) Common Stock (30,000) $0.62 Jan. 6, 2033 30,000 Acquired
Jan. 11, 2022 PRPO Stock Option (Right to Buy) Common Stock (40,000) $1.54 Jan. 11, 2032 40,000 Acquired
Aug. 3, 2021 PRPO Stock Option (Right to Buy) Common Stock (25,000) $3.22 Aug. 3, 2031 25,000 Acquired
Jan. 4, 2021 PRPO Stock Option (Right to Buy) Common Stock (25,000) $2.10 Jan. 4, 2031 25,000 Acquired
July 2, 2020 PRPO Stock Option (Right to Buy) Common Stock (4,000) $1.30 July 2, 2030 4,000 Acquired
Jan. 16, 2020 PRPO Stock Option (Right to Buy) Common Stock (7,500) $2.14 Jan. 16, 2030 7,500 Acquired
May 14, 2019 PRPO Warrant to Purchase Common Stock Common Stock (30,869) $9.56 May 14, 2029 30,869 Acquired
May 14, 2019 PRPO 8% Convertible Promissory Note Common Stock (30,869) $7.12 · · Acquired
April 16, 2019 PRPO Warrant Common Stock (245,785) $0.36 Oct. 16, 2024 245,785 Acquired
April 16, 2019 PRPO 8% Convertible Promissory Note Common Stock (245,785) $0.45 · · Acquired
April 16, 2019 PRPO Warrant to Purchase Common Stock Common Stock (245,785) $0.36 April 16, 2024 245,785 Acquired
April 16, 2019 PRPO 8% Convertible Promissory Note Common Stock (245,785) $0.45 · · Acquired
March 18, 2019 PRPO Stock Option (Right to Buy) Common Stock (75,000) $0.15 March 18, 2029 75,000 Acquired
Dec. 31, 2018 PRPO Warrant to Purchase Common Stock Common Stock (219,781) $0.36 Dec. 31, 2023 219,781 Acquired
Dec. 31, 2018 PRPO 8% Convertible Promissory Note Common Stock (219,781) $0.25 · · Acquired
Nov. 29, 2018 PRPO Warrant Common Stock (189,466) $0.36 May 29, 2024 189,466 Acquired
Nov. 29, 2018 PRPO 8% Convertible Promissory Note Common Stock (189,466) $0.29 · · Acquired
Nov. 29, 2018 PRPO Warrant to Purchase Common Stock Common Stock (189,466) $0.36 Nov. 29, 2023 189,466 Acquired
Nov. 29, 2018 PRPO 8% Convertible Promissory Note Common Stock (189,466) $0.29 · · Acquired
Nov. 29, 2018 PRPO Warrant to Purchase Common Stock Common Stock (189,466) $0.36 Nov. 29, 2023 189,466 Acquired
Nov. 29, 2018 PRPO 8% Convertible Promissory Note Common Stock (228,937) $0.24 · · Acquired
Feb. 16, 2018 PRPO Stock Option (Right to Buy) Common Stock (77,563) $0.71 Feb. 16, 2028 77,563 Acquired
Feb. 16, 2018 PRPO Stock Option (Right to Buy) Common Stock (31,025) $0.71 Feb. 16, 2028 31,025 Acquired
Nov. 8, 2017 PRPO Stock Option (Right to Buy) Common Stock (7,000) $1.36 Nov. 8, 2027 7,000 Acquired

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

Initial ownership (Form 3) 5 holdings

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

DateTickerSecuritySharesOwnership
July 11, 2017 PRPO Common Stock 562,708 Direct
July 11, 2017 PRPO 8% Convertible Promissory Note→ Common Stock or Series A Senior Convertible Preferred Stock [F1] · Direct
July 11, 2017 PRPO Series A Senior Convertible Preferred Stock→ Common Stock (185,704) 185,704 Direct
July 11, 2017 PRPO Warrant to Purchase Common Stock→ Common Stock (7,500) 7,500 Direct
July 11, 2017 PRPO Call Option (right to buy)→ Common Stock (131,667) 131,667 Direct