Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 38 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

No open-market trades on record; showing all filings.

DateTickerCodeSharesPriceValue Owned afterΔ ownA/Dvs now
Jan. 11, 2022 PRPO A 40,000 · · 40,000 Direct · Acquired (price as of 2026-10-02)
Jan. 4, 2021 PRPO A 25,000 · · 25,000 Direct · Acquired (price as of 2026-10-02)
July 2, 2020 PRPO A 4,000 · · 4,000 Direct · Acquired (price as of 2026-10-02)
Jan. 16, 2020 PRPO A 7,500 · · 7,500 Direct · Acquired (price as of 2026-10-02)
March 18, 2019 PRPO A 75,000 · · 75,000 Direct · Acquired (price as of 2026-10-02)
Feb. 16, 2018 PRPO A 77,563 · · 77,563 Direct · Acquired (price as of 2026-10-02)
Feb. 16, 2018 PRPO A 31,025 · · 31,025 Direct · Acquired (price as of 2026-10-02)
Oct. 10, 2017 PRPO J 124,496 · · 0 Indirect -100.00% Disposed (price as of 2026-10-02)
Oct. 10, 2017 PRPO J 124,496 · · 0 Indirect -100.00% Disposed (price as of 2026-10-02)
Oct. 10, 2017 PRPO J 91,420 · · 0 Indirect -100.00% Disposed (price as of 2026-10-02)
Sept. 26, 2017 PRPO A 7,000 · · 7,000 Direct · Acquired (price as of 2026-10-02)
Sept. 8, 2017 PRPO A 85,476 · · 85,476 Indirect · Acquired (price as of 2026-10-02)
Sept. 8, 2017 PRPO A 124,496 · · 124,496 Indirect · Acquired (price as of 2026-10-02)
Sept. 8, 2017 PRPO A 85,476 · · 85,476 Indirect · Acquired (price as of 2026-10-02)
Sept. 8, 2017 PRPO C 20,073 $75000.00 $1,505,475,000 0 Indirect -100.00% Disposed -100.0% (price as of 2026-10-02)
Sept. 8, 2017 PRPO A 124,496 · · 124,496 Indirect · Acquired (price as of 2026-10-02)
Sept. 8, 2017 PRPO C 83,301 $311241.00 $25,926,686,541 0 Indirect -100.00% Disposed -100.0% (price as of 2026-10-02)
Sept. 8, 2017 PRPO C 124,496 · · 124,496 Indirect · Acquired (price as of 2026-10-02)
Sept. 8, 2017 PRPO C 85,476 · · 686,874 Indirect +14.21% Acquired (price as of 2026-10-02)
Sept. 6, 2017 PRPO J 83,301 $311241.00 $25,926,686,541 83,301 Indirect · Acquired -100.0% (price as of 2026-10-02)
Aug. 28, 2017 PRPO A 29,541 · · 29,541 Indirect · Acquired (price as of 2026-10-02)
Aug. 28, 2017 PRPO A 87,414 · · 87,414 Indirect · Acquired (price as of 2026-10-02)
Aug. 28, 2017 PRPO C 59,858 $3.74 $223,869 0 Indirect -100.00% Disposed -97.9% (price as of 2026-10-02)
Aug. 28, 2017 PRPO C 177,128 $3.74 $662,459 0 Indirect -100.00% Disposed -97.9% (price as of 2026-10-02)
Aug. 28, 2017 PRPO J 776 · · 59,858 Indirect +1.31% Acquired (price as of 2026-10-02)
Aug. 28, 2017 PRPO J 2,299 · · 177,128 Indirect +1.31% Acquired (price as of 2026-10-02)
Aug. 28, 2017 PRPO C 59,858 · · 340,913 Indirect +21.30% Acquired (price as of 2026-10-02)
Aug. 28, 2017 PRPO C 177,128 · · 601,398 Indirect +41.75% Acquired (price as of 2026-10-02)
June 29, 2017 PRPO A 263,332 · · 263,332 Indirect · Acquired (price as of 2026-10-02)
June 29, 2017 PRPO A 2,500 · · 2,500 Indirect · Acquired (price as of 2026-10-02)
June 29, 2017 PRPO A 20,073 $75000.00 $1,505,475,000 20,073 Indirect · Acquired -100.0% (price as of 2026-10-02)
June 29, 2017 PRPO A 214,113 $800000.00 $171,290,400,000 214,113 Indirect · Acquired -100.0% (price as of 2026-10-02)
June 29, 2017 PRPO A 91,420 · · 91,420 Indirect · Acquired (price as of 2026-10-02)
June 29, 2017 PRPO A 59,082 $3.74 $220,967 59,082 Indirect · Acquired -97.9% (price as of 2026-10-02)
June 29, 2017 PRPO A 174,829 $3.74 $653,860 174,829 Indirect · Acquired -97.9% (price as of 2026-10-02)
June 29, 2017 PRPO A 4,179 · · 4,179 Indirect · Acquired (price as of 2026-10-02)
June 29, 2017 PRPO A 281,055 · · 281,055 Indirect · Acquired (price as of 2026-10-02)
June 29, 2017 PRPO A 424,270 · · 424,270 Indirect · Acquired (price as of 2026-10-02)

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
Jan. 11, 2022 PRPO Stock Option (Right to Buy) Common Stock (40,000) $1.54 Jan. 11, 2032 40,000 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
March 18, 2019 PRPO Stock Option (Right to Buy) Common Stock (75,000) $0.15 March 18, 2029 75,000 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
Oct. 10, 2017 PRPO Offering Warrant to Purchase Common Stock Common Stock (124,496) · Aug. 28, 2022 124,496 Disposed
Oct. 10, 2017 PRPO Warrant to Purchase Common Stock Common Stock · June 29, 2022 91,420 Disposed
Sept. 26, 2017 PRPO Stock Option (Right to Buy) Common Stock (7,000) $1.87 Sept. 26, 2027 7,000 Acquired
Sept. 8, 2017 PRPO Offering Warrant to Purchase Common Stock Common Stock (85,476) · Aug. 28, 2022 85,476 Acquired
Sept. 8, 2017 PRPO Offering Warrant to Purchase Common Stock Common Stock · Aug. 28, 2022 124,496 Acquired
Sept. 8, 2017 PRPO Offering Warrant to Purchase Common Stock Common Stock (85,476) $10.00 Aug. 28, 2022 85,476 Acquired
Sept. 8, 2017 PRPO 8% Convertible Promissory Note Common Stock or Series A Senior Convertible Preferred Stock [F5] · · 20,073 Disposed
Sept. 8, 2017 PRPO Offering Warrant to Purchase Common Stock Common Stock · Aug. 28, 2022 124,496 Acquired
Sept. 8, 2017 PRPO 8% Convertible Promissory Note Common Stock or Series A Senior Convertible Preferred Stock [F6,F7] · · 83,301 Disposed
Sept. 6, 2017 PRPO 8% Convertible Promissory Note Common Stock or Series A Senior Convertible Preferred Stock [F6,F7] · · 83,301 Acquired
Aug. 28, 2017 PRPO Warrant to Purchase Common Stock Common Stock $10.00 Sept. 1, 2022 29,541 Acquired
Aug. 28, 2017 PRPO Warrant to Purchase Common Stock Common Stock $10.00 Sept. 1, 2022 87,414 Acquired
Aug. 28, 2017 PRPO Series A Senior Convertible Preferred Stock Common Stock (59,858) · · 59,858 Disposed
Aug. 28, 2017 PRPO Series A Senior Convertible Preferred Stock Common Stock (177,128) · · 177,128 Disposed
Aug. 28, 2017 PRPO Series A Senior Convertible Preferred Stock Common Stock (776) · · 776 Acquired
Aug. 28, 2017 PRPO Series A Senior Convertible Preferred Stock Common Stock (2,299) · · 2,299 Acquired
June 29, 2017 PRPO Call Option (right to buy) Common Stock (263,332) · Dec. 31, 2017 263,332 Acquired
June 29, 2017 PRPO Warrant to Purchase Common Stock Common Stock (2,500) · June 29, 2022 2,500 Acquired
June 29, 2017 PRPO 8% Convertible Promissory Note Common Stock or Series A Senior Convertible Preferred Stock [F8] $3.74 · 20,073 Acquired
June 29, 2017 PRPO Call Option (right to buy) [F7] Common Stock or Series A Senior Convertible Preferred Stock [F7] $3.74 · 214,113 Acquired
June 29, 2017 PRPO Warrant to Purchase Common Stock Common Stock $7.00 June 29, 2022 91,420 Acquired
June 29, 2017 PRPO Series A Senior Convertible Preferred Stock Common Stock (59,082) · · 59,082 Acquired
June 29, 2017 PRPO Series A Senior Convertible Preferred Stock Common Stock (174,829) · · 174,829 Acquired

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

Initial ownership (Form 3) 3 holdings

07

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

DateTickerSecuritySharesOwnership
July 3, 2017 PRPO 8% Convertible Promissory Note→ Common Stock or Series A Senior Convertible Preferred Stock [F1] · Indirect
July 3, 2017 PRPO Warrant to Purchase Common Stock→ Common Stock (2,500) 2,500 Indirect
July 3, 2017 PRPO Call Option (right to buy)→ Common Stock (263,332) 263,332 Indirect