Insider · CIK 0001943622
Christoph Glingener
Files at ADTN (ADTRAN Holdings, Inc.). First filing May 11, 2026, latest May 11, 2026.
In brief
Christoph Glingener files SEC Form 4 as officer at ADTN (ADTRAN Holdings, Inc.). Since May 11, 2026, Christoph Glingener has reported 0 open-market buys worth $0 and 1 open-market sell worth $2.2M, the latest filed on May 11, 2026.
A track record needs three past buys with six months of prices behind them; Christoph Glingener has 0, so none is measured yet.
The newest scored trade: sold $2.2M of ADTN on May 7, 2026, filed May 11, 2026, scored 33 (weak), under a 10b5-1 plan. In the last 12 months: 0 buys worth $0 and 1 sell worth $2.2M.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
ADTN: ADTRAN Holdings, Inc.
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 33Weak | ADTRAN Holdings, Inc. | $2.2M 148,392 shares | -169% | +101% from low-21% from high |
Planned sales
Form 144 notices this insider filed before selling restricted or control stock, newest first.
| Filed | Company | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| May 7, 2026 | ADTN ADTRAN HOLDINGS INC | 148,392 0.18% of outstanding | $2.3M | May 7, 2026 | none |
Transactions
Every row this insider has filed, 13 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Aug 10, 2026 | ADTN ADTRAN Holdings, Inc. | AGrant or award Common Stock | +27,924 | $0.00 | $0 | 83,953 | Aug 10, 2026 |
| Jul 24, 2026 | ADTN ADTRAN Holdings, Inc. | AGrant or award Common Stock | +9,384 | $0.00 | $0 | 56,029 | Jul 28, 2026 |
| May 7, 2026 | ADTN ADTRAN Holdings, Inc. | MOption exercise Common Stock10b5-1 | +41,220 | $7.01 | $289k | 87,865 | May 11, 2026 |
| May 7, 2026 | ADTN ADTRAN Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -41,220 | $14.73 | $607k | 46,645 | May 11, 2026 |
| May 7, 2026 | ADTN ADTRAN Holdings, Inc. | MOption exercise Common Stock10b5-1 | +84,895 | $12.17 | $1.0M | 131,540 | May 11, 2026 |
| May 7, 2026 | ADTN ADTRAN Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -84,895 | $15.06 | $1.3M | 46,645 | May 11, 2026 |
| May 8, 2026 | ADTN ADTRAN Holdings, Inc. | MOption exercise Common Stock10b5-1 | +22,277 | $12.17 | $271k | 68,922 | May 11, 2026 |
| May 8, 2026 | ADTN ADTRAN Holdings, Inc. | SOpen-market sale Common Stock10b5-1 | -22,277 | $15.00 | $334k | 46,645 | May 11, 2026 |
| May 7, 2026 | ADTN ADTRAN Holdings, Inc. | MOption exercise Stock Optionderivative10b5-1 | -41,220 | $0.00 | $0 | 0 | May 11, 2026 |
| May 7, 2026 | ADTN ADTRAN Holdings, Inc. | MOption exercise Stock Optionsderivative10b5-1 | -84,895 | $0.00 | $0 | 22,277 | May 11, 2026 |
| May 8, 2026 | ADTN ADTRAN Holdings, Inc. | MOption exercise Stock Optionderivative10b5-1 | -22,277 | $0.00 | $0 | 0 | May 11, 2026 |
| Jan 24, 2025 | ADTN ADTRAN Holdings, Inc. | AGrant or award Common Stock | +13,907 | $0.00 | $0 | 32,775 | Jan 28, 2025 |
| Jan 24, 2025 | ADTN ADTRAN Holdings, Inc. | AGrant or award Common Stock | +13,870 | $0.00 | $0 | 46,645 | Jan 28, 2025 |
Questions about Christoph Glingener
Answered from the filings on this page, as of the latest one.
Is Christoph Glingener buying or selling?
In the last 12 months Christoph Glingener reported 0 open-market buys worth $0 and 1 open-market sell worth $2.2M on SEC Form 4; the latest was sold $2.2M of ADTN on May 7, 2026. Grants, option exercises and tax withholding are not counted.
How did Christoph Glingener's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Christoph Glingener has 0.
Where does Christoph Glingener file Form 4?
Christoph Glingener has filed Form 4 at ADTN (ADTRAN Holdings, Inc.) as Chief Technology Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.