Christina Rizopoulos Valauri
Insider
First SEC filing: July 9, 2024 · Latest: July 9, 2024
Insider at
Insider transactions
1 buys (P)
0 sells (S)
Net: $18,050
Avg return of open purchases vs now: -90.0%
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| July 15, 2026 | PRPO | A | 108 | $25.24 | $2,726 | 5,628 Direct | +1.96% | Acquired | -7.1% (price as of 2026-10-06) |
| April 15, 2026 | PRPO | A | 93 | $29.49 | $2,743 | 5,520 Direct | +1.71% | Acquired | -20.5% (price as of 2026-10-06) |
| April 1, 2026 | VBIO | P | 19,000 | $0.95 | $18,050 | 19,000 Direct | · | Acquired | -90.0% (price as of 2026-10-06) |
| Jan. 15, 2026 | PRPO | A | 406 | $24.00 | $9,744 | 5,427 Direct | +8.09% | Acquired | -2.3% (price as of 2026-10-06) |
| Jan. 2, 2026 | PRPO | A | 1,500 | · | · | 1,500 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 6, 2025 | VBIO | A | 7,500 | · | · | 7,500 Direct | · | Acquired | (price as of 2026-10-06) |
| Jan. 14, 2025 | PRPO | A | 1,000 | · | · | 1,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Dec. 18, 2024 | VBIO | A | 12,000 | · | · | 12,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Oct. 15, 2024 | PRPO | A | 1,472 | $6.62 | $9,745 | 5,021 Direct | +41.48% | Acquired | 254.2% (price as of 2026-10-06) |
| Aug. 9, 2024 | VBIO | A | 3,000 | · | · | 3,000 Direct | · | Acquired | (price as of 2026-10-06) |
| July 15, 2024 | PRPO | A | 2,103 | $4.63 | $9,737 | 3,549 Direct | +145.44% | Acquired | 406.5% (price as of 2026-10-06) |
| June 21, 2024 | PRPO | A | 1,000 | · | · | 1,000 Direct | · | Acquired | (price as of 2026-10-06) |
| April 15, 2024 | PRPO | A | 1,446 | $6.74 | $9,746 | 1,446 Direct | · | Acquired | 247.9% (price as of 2026-10-06) |
| Jan. 2, 2024 | PRPO | A | 259 | · | · | 259 Direct | · | Acquired | (price as of 2026-10-06) |
| Jan. 2, 2024 | PRPO | A | 103 | · | · | 103 Direct | · | Acquired | (price as of 2026-10-06) |
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 |
|---|---|---|---|---|---|---|---|
| Jan. 2, 2026 | PRPO | Stock Option (Right to Buy) | Common Stock | $23.82 | Jan. 2, 2036 | 1,500 | Acquired |
| Aug. 6, 2025 | VBIO | Stock Option (Right to Purchase) | Common Stock | $3.32 | Aug. 5, 2035 | 7,500 | Acquired |
| Jan. 14, 2025 | PRPO | Stock Option (Right to Buy) | Common Stock | $6.06 | Jan. 14, 2035 | 1,000 | Acquired |
| Dec. 18, 2024 | VBIO | Stock Option (Right to Purchase) | Common Stock | $0.23 | Dec. 17, 2034 | 12,000 | Acquired |
| Aug. 9, 2024 | VBIO | Employee Stock Option (Right to Buy) | Common Stock | $0.41 | Aug. 8, 2034 | 3,000 | Acquired |
| June 21, 2024 | PRPO | Stock Option (Right to Buy) | Common Stock | $4.98 | June 21, 2034 | 1,000 | Acquired |
| Jan. 2, 2024 | PRPO | Employee Stock Option (right to buy) | Common Stock | $6.52 | Jan. 2, 2034 | 259 | Acquired |
| Jan. 2, 2024 | PRPO | Employee Stock Option (right to buy) | Common Stock | $6.52 | Jan. 2, 2034 | 103 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.