Mace Rothenberg
CIK 1873988 · View on SEC EDGAR ↗
Insider
First SEC filing: Aug. 16, 2021 · Latest: June 8, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 10 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
10 other filings hidden
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Nov. 18, 2024 | TNGX | P | 10,000 | $3.78 | $37,800 | 31,250 Direct | +47.06% | Acquired | 535.8% (price as of 2026-08-21) |
| Nov. 14, 2024 | TNGX | P | 10,000 | $3.62 | $36,200 | 21,250 Direct | +88.89% | Acquired | 564.0% (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 |
|---|---|---|---|---|---|---|---|
| June 5, 2026 | TNGX | Stock Option (Right to Buy) | Common Stock (25,000) | $20.22 | June 5, 2036 | 25,000 | Acquired |
| May 13, 2026 | SRZN | Director Stock Option (right to buy) | Common Stock (5,550) | $30.14 | May 12, 2036 | 5,550 | Acquired |
| June 5, 2025 | TNGX | Stock Option (Right to Buy) | Common Stock (37,500) | $3.51 | June 5, 2035 | 37,500 | Acquired |
| June 5, 2024 | TNGX | Stock Option (Right to Buy) | Common Stock (37,500) | $7.41 | June 5, 2034 | 37,500 | Acquired |
| June 6, 2023 | TNGX | Stock Option (Right to Buy) | Common Stock (30,000) | $3.55 | June 6, 2033 | 30,000 | Acquired |
| June 8, 2022 | TNGX | Stock Option (Right to Buy) | Common Stock (40,000) | $5.90 | June 8, 2032 | 40,000 | 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.