Reinhard J. Ambros
CIK 1709690 · View on SEC EDGAR ↗
First SEC filing: June 28, 2017 · Latest: June 28, 2017
On this page
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 15, 2020 | RNTX | P | 5,800 | $1.22 | $7,076 | 5,800 Direct | — | Acquired | -96.7% (price as of 2026-08-21) |
| July 5, 2017 | RNTX | P | 266,667 | $15.00 | $4,000,005 | 2,544,182 Indirect | +11.71% | Acquired | -99.7% (price as of 2026-08-21) |
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 |
|---|---|---|---|---|---|---|---|
| July 23, 2025 | RNTX | Stock Option (right to buy) | Common Stock (17,500) | $1.55 | July 22, 2035 | 17,500 | Acquired |
| Dec. 2, 2024 | RNTX | Stock Option (right to buy) | Common Stock (35,000) | $2.85 | Dec. 1, 2034 | 35,000 | Acquired |
| Aug. 20, 2024 | RNTX | Stock Option (right to buy) | Common Stock (2,725) | $2.40 | Aug. 19, 2034 | 2,725 | Acquired |
| Feb. 28, 2024 | RNTX | Stock Option (right to buy) | Common Stock (2,725) | $4.72 | Feb. 27, 2034 | 2,725 | Acquired |
| Feb. 28, 2024 | RNTX | Stock Option (right to buy) | Common Stock (2,725) | $4.80 | Feb. 27, 2034 | 2,725 | Acquired |
| June 15, 2022 | RNTX | Stock Option (right to buy) | Common Stock (54,500) | $0.40 | June 14, 2032 | 54,500 | Acquired |
| June 15, 2021 | RNTX | Stock Option (right to buy) | Common Stock (96,000) | $1.29 | June 14, 2031 | 96,000 | Acquired |
| June 17, 2020 | RNTX | Stock Option (right to buy) | Common Stock (12,500) | $1.15 | June 16, 2030 | 12,500 | Acquired |
| June 19, 2019 | RNTX | Stock Option (right to buy) | Common Stock (50,000) | $0.86 | June 18, 2029 | 50,000 | Acquired |
| June 21, 2018 | RNTX | Stock Option (right to buy) | Common Stock (10,000) | $6.02 | June 20, 2028 | 10,000 | Acquired |
| Sept. 26, 2017 | RNTX | Stock Option (right to buy) | Common Stock (20,000) | $12.09 | Sept. 25, 2027 | 20,000 | Acquired |
| July 5, 2017 | RNTX | Series F Preferred Stock | Common Stock (372,937) | — | — | 3,705,882 | Disposed |
| July 5, 2017 | RNTX | Series E-3 Preferred Stock | Common Stock (230,837) | — | — | 2,293,829 | Disposed |
| July 5, 2017 | RNTX | Series E-2 Preferred Stock | Common Stock (266,132) | — | — | 2,644,558 | Disposed |
| July 5, 2017 | RNTX | Series D Preferred Stock | Common Stock (682,476) | — | — | 6,781,770 | Disposed |
| July 5, 2017 | RNTX | Series C-2 Preferred Stock | Common Stock (426,547) | — | — | 4,238,607 | Disposed |
| July 5, 2017 | RNTX | Series C Preferred Stock | Common Stock (298,583) | — | — | 2,967,025 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 6 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| June 28, 2017 | RNTX | Series C Preferred Stock→ Common Stock (298,583) | 298,583 | Indirect |
| June 28, 2017 | RNTX | Series C-2 Preferred Stock→ Common Stock (426,547) | 426,547 | Indirect |
| June 28, 2017 | RNTX | Series D Preferred Stock→ Common Stock (682,476) | 682,476 | Indirect |
| June 28, 2017 | RNTX | Series E-2 Preferred Stock→ Common Stock (266,132) | 266,132 | Indirect |
| June 28, 2017 | RNTX | Series E-3 Preferred Stock→ Common Stock (230,837) | 230,837 | Indirect |
| June 28, 2017 | RNTX | Series F Preferred Stock→ Common Stock (372,937) | 372,937 | Indirect |