Insider at

04

Insider transactions

05
0 buys (P) 0 sells (S) Net: $0 + 9 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 150,000 · · 150,000 Direct · Acquired (price as of 2026-10-05)
Aug. 3, 2021 PRPO A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-05)
Jan. 4, 2021 PRPO A 66,666 · · 66,666 Direct · Acquired (price as of 2026-10-05)
July 2, 2020 PRPO A 15,000 · · 15,000 Direct · Acquired (price as of 2026-10-05)
Jan. 16, 2020 PRPO A 66,000 · · 66,000 Direct · Acquired (price as of 2026-10-05)
March 18, 2019 PRPO A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-05)
March 18, 2019 PRPO A 250,000 · · 250,000 Direct · Acquired (price as of 2026-10-05)
Sept. 26, 2017 PRPO A 66,666 · · 66,666 Direct · Acquired (price as of 2026-10-05)
Sept. 26, 2017 PRPO A 98,485 · · 98,485 Direct · Acquired (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.

06
DateTickerSecurityUnderlying Exercise priceExpirationSharesA/D
Jan. 11, 2022 PRPO Stock Option (Right to Buy) Common Stock (150,000) $1.54 Jan. 11, 2032 150,000 Acquired
Aug. 3, 2021 PRPO Stock Option (Right to Buy) Common Stock (250,000) $3.22 Aug. 3, 2031 250,000 Acquired
Jan. 4, 2021 PRPO Stock Option (Right to Buy) Common Stock (66,666) $2.10 Jan. 4, 2031 66,666 Acquired
July 2, 2020 PRPO Stock Option (Right to Buy) Common Stock (15,000) $1.30 July 2, 2030 15,000 Acquired
Jan. 16, 2020 PRPO Stock Option (Right to Buy) Common Stock (66,000) $2.14 Jan. 16, 2030 66,000 Acquired
March 18, 2019 PRPO Stock Option (Right to Buy) Common Stock (250,000) $0.15 March 18, 2029 250,000 Acquired
March 18, 2019 PRPO Stock Option (Right to Buy) Common Stock (250,000) $0.15 March 18, 2029 250,000 Acquired
Sept. 26, 2017 PRPO Stock Option (Right to Buy) [F1] Common Stock (66,666) $1.87 Sept. 26, 2027 66,666 Acquired
Sept. 26, 2017 PRPO Stock Option (Right to Buy) Common Stock (98,485) $1.87 Sept. 26, 2027 98,485 Acquired

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

Initial ownership (Form 3) 1 holding

07

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

DateTickerSecuritySharesOwnership
July 10, 2017 PRPO No Securities are beneficially owned. 0 Direct

Compensation (DEF 14A)

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

PRPO

CFO
Fiscal yearSalaryBonusStock awards Option awardsNon-equity incentivePension changeOtherTotal
2020 $216,025 $75,000 · $129,360 · · $11,551 $431,936
2019 $200,000 · · $34,000 · · $10,671 $244,671
2018 $200,000 · · · · · $8,160 $403,160

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