The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Glingener Christoph since 2026.
This trader's CIK number is 1943622.
At the time of last reporting, Glingener Christoph was the Chief Technology Officer of Adtran Holdings, Inc.. (stock ticker symbol ADTN).
Also see all insider trading activities at Adtran Holdings, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2026 | ADTN | 0 | $0 | 148,392 | $2,212,637 | 148,392 | $1,480,553 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2026-05-07 | ADTN | Sale | 126,115 | 14.89 | 1,878,482 |
| 2026-05-08 | ADTN | Option Ex | 22,277 | 12.17 | 271,111 |
| 2026-05-07 | ADTN | Option Ex | 126,115 | 9.59 | 1,209,442 |
| 2026-05-08 | ADTN | Sale | 22,277 | 15.00 | 334,155 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Glingener Christoph (Chief Technology Officer of Adtran Holdings, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.