Hideki Garren
CIK 1854126 · View on SEC EDGAR ↗
Insider
First SEC filing: Dec. 28, 2022 · Latest: Dec. 28, 2022
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 17 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
17 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 13, 2023 | PRTA | S 10b5-1 | 2,000 | $55.48 | $110,960 | 0 Direct | -100.00% | Disposed | -83.9% (price as of 2026-08-20) |
| Aug. 16, 2023 | PRTA | S 10b5-1 | 374 | $59.74 | $22,343 | 0 Direct | -100.00% | Disposed | -85.0% (price as of 2026-08-20) |
| Aug. 16, 2023 | PRTA | S 10b5-1 | 748 | $58.93 | $44,080 | 374 Direct | -66.67% | Disposed | -84.8% (price as of 2026-08-20) |
| Aug. 16, 2023 | PRTA | S 10b5-1 | 878 | $58.15 | $51,056 | 1,122 Direct | -43.90% | Disposed | -84.6% (price as of 2026-08-20) |
| July 12, 2023 | PRTA | S 10b5-1 | 92 | $68.20 | $6,274 | 0 Direct | -100.00% | Disposed | -86.9% (price as of 2026-08-20) |
| July 12, 2023 | PRTA | S 10b5-1 | 1,908 | $67.48 | $128,752 | 92 Direct | -95.40% | Disposed | -86.7% (price as of 2026-08-20) |
| June 16, 2023 | PRTA | S 10b5-1 | 7,331 | $74.00 | $542,494 | 0 Direct | -100.00% | Disposed | -87.9% (price as of 2026-08-20) |
| June 14, 2023 | PRTA | S 10b5-1 | 655 | $75.49 | $49,446 | 0 Direct | -100.00% | Disposed | -88.1% (price as of 2026-08-20) |
| June 14, 2023 | PRTA | S 10b5-1 | 2,534 | $74.59 | $189,011 | 655 Direct | -79.46% | Disposed | -88.0% (price as of 2026-08-20) |
| June 14, 2023 | PRTA | S 10b5-1 | 971 | $73.31 | $71,184 | 3,189 Direct | -23.34% | Disposed | -87.8% (price as of 2026-08-20) |
| June 14, 2023 | PRTA | S 10b5-1 | 509 | $72.45 | $36,877 | 4,160 Direct | -10.90% | Disposed | -87.6% (price as of 2026-08-20) |
| Dec. 1, 2022 | PRTA | S 10b5-1 | 4,000 | $62.51 | $250,040 | 0 Direct | -100.00% | Disposed | -85.7% (price as of 2026-08-20) |
| Nov. 1, 2022 | PRTA | S 10b5-1 | 511 | $62.41 | $31,892 | 0 Direct | -100.00% | Disposed | -85.6% (price as of 2026-08-20) |
| Nov. 1, 2022 | PRTA | S 10b5-1 | 3,489 | $61.82 | $215,690 | 511 Direct | -87.22% | Disposed | -85.5% (price as of 2026-08-20) |
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 |
|---|---|---|---|---|---|---|---|
| Feb. 27, 2024 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (85,000) | $30.30 | Feb. 27, 2034 | 85,000 | Acquired |
| Sept. 13, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (2,000) | $24.90 | April 5, 2031 | 2,000 | Disposed |
| Aug. 16, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (2,000) | $24.90 | April 5, 2031 | 2,000 | Disposed |
| July 12, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (2,000) | $24.90 | April 5, 2031 | 2,000 | Disposed |
| June 16, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (7,331) | $24.90 | April 5, 2031 | 7,331 | Disposed |
| June 14, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (4,669) | $24.90 | April 5, 2031 | 4,669 | Disposed |
| March 2, 2023 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (48,000) | $52.97 | March 2, 2033 | 48,000 | Acquired |
| Dec. 1, 2022 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (4,000) | $24.90 | April 5, 2031 | 4,000 | Disposed |
| Nov. 1, 2022 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (4,000) | $24.90 | April 5, 2031 | 4,000 | Disposed |
| Feb. 23, 2022 | PRTA | Stock Option (Right to Buy) | Ordinary Shares (85,000) | $32.45 | Feb. 23, 2032 | 85,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 28, 2022 | COYA | Stock Option (right to buy)→ Common Stock, par value $0.0001 per share | — | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
PRTA
M.D., Ph.D.(4) Chief Medical Officer| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2021 | $364,044 | $50,000 | — | $4,319,200 | $290,938 | — | $14,500 | $5,038,682 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.