Nils Eike-Christian Martens
CIK 2113819 · View on SEC EDGAR ↗
Insider
First SEC filing: Feb. 27, 2026 · Latest: Feb. 27, 2026
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 2 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.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 5, 2026 | GTX | A | 15,417 | — | — | 49,778 Direct | +44.87% | Acquired | (price as of 2026-08-21) |
| March 5, 2026 | GTX | F | 4,898 | $18.87 | $92,425 | 34,361 Direct | -12.48% | Disposed | 42.6% (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.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Feb. 27, 2026 | GTX | Common Stock | 39,259 | Direct |