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8-K ·Filed Aug 10, 2026

ADTN

ADTRAN Holdings, Inc.
NEUTRAL
Impact 2/10
Horizonimmediate Processed2mo ago SEC0001193125-26-342359
8-K context-dependent: Items 5.02
Actionable Insight • Neutral

Routine executive compensation filing with no immediate trading signal. Monitor next quarterly earnings for revenue and adjusted EBIT trends, which drive the CTO's cash bonus and PSU payouts.

DirectionNeutral
Confidencehigh
Horizonimmediate
Latest settled — T+20d
ADTN ▼ -7.22% at T+20d
NEUTRAL call -7.22% · α vs SPY -6.16% · entry $7.76 → $7.20
Next anchor: T+60d in 7d
Latest observation: T+52 +94.11% FF3 residual α
Entry = T+0 close
Aug 10, 2026
via day close
T+1d
+5.15%
call +5.15% · α +4.90%
$8.16
settled 3mo ago
T+5d
+4.38%
call +4.38% · α +4.79%
$8.10
settled 2mo ago
T+20d
-7.22%
call -7.22% · α -6.16%
$7.20
settled 7w ago
T+60d
Pending
in 7d

Price Chart

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Executive Summary

ADTRAN Holdings filed an 8-K reporting an amendment to the employment agreement of its CTO, Dr. Christoph Glingener, aligning his compensation with a new remuneration system approved by shareholders in June 2026. The amendment extends his term through December 31, 2026, confirms a €400,000 base salary, and outlines new equity grant structures including time-based RSUs and long-term performance PSUs tied to Adjusted EBIT and relative TSR. This is a routine compensatory arrangement for a continuing executive officer with no departure or material financial impact.

Key Facts

  • Amendment to CTO Christoph Glingener's employment agreement, term extended to December 31, 2026
  • Annual base salary remains €400,000
  • Incentive cash bonus target set at 60% of base salary, tied to total revenue and adjusted EBIT
  • Annual time-based RSU grant target set at 75% of base salary, capped at $903,729
  • Long-term financial plan PSU award target of $903,729, divided into three annual tranches, based on Adjusted EBIT through 2028 with TSR modifier, capped at $2,000,000
  • Total annual remuneration capped at €2,800,000
  • No departure or resignation of any officer reported

Financial Impact

No material financial impact; executive compensation adjustments within normal range for a continuing officer

Risk Factors

  • No material risks identified from this filing

Market Snapshot

Exchange
Nasdaq
Sector
Telephone & Telegraph Apparatus
Analyst Consensus
80% bullish (15 analysts)

Investment Themes

Media & Telecom

Documents Analyzed

This report is based on 5 SEC documents filed with EDGAR.

DocumentAccession Number
8-K Filing (Primary)0001193125-26-342359
Document: adtn-20260810.htm0001193125-26-342359
Document: 0001193125-26-342359-index-headers.html0001193125-26-342359
Document: 0001193125-26-342359-index.html0001193125-26-342359
Document: 0001193125-26-342359.txt0001193125-26-342359
11 reports for ADTN
Performance horizon
100% Hit rate @ T+5 4 of 4 directional calls Went positive at some point 4 of 4 best @ T+60▲ +49.65%Feb 26, 2026
Filters
Rows
Reports for ADTN — sortable, filterable
TypeNow
Aug 10, 2026
11w ago
8-K
NEUTRAL ★ 2/10
$7.76 $8.10▲ +4.38%▲ +4.79%$6.72 (−13.40%)
Aug 8, 2026
11w ago
Institutional Cluster
BULLISH ★ 6/10
$7.63 $8.66▲ +13.43%▲ +13.48%$6.72 (−11.93%)
Aug 7, 2026
11w ago
Insider Buy
BULLISH ★ 5/10
$7.63 $8.66▲ +13.43%▲ +13.48%$6.72 (−11.93%)
Aug 4, 2026
12w ago
8-K
MIXED ★ 5/10
$8.76 $7.76▼ −11.42%▼ −11.32%$6.72 (−23.29%)
Jul 22, 2026
13w ago
8-K
BEARISH ★ 8/10
$10.45 $8.33▲ +20.29%▲ +17.89%$6.72 (+35.69%)
Jul 17, 2026
14w ago
S-3ASR
NEUTRAL ★ 3/10
$11.65 $10.15▼ −12.88%▼ −12.19%$6.72 (−42.32%)
Jun 11, 2026
19w ago
Institutional Cluster
MIXED ★ 4/10
$15.26 $15.18▼ −0.52%▼ −1.20%$6.72 (−55.96%)
May 1, 2026
25w ago
DEFA14A
NEUTRAL ★ 3/10
$18.45 $14.55▼ −21.14%▼ −23.49%$6.72 (−63.58%)
Apr 7, 2026
28w ago
8-K
NEUTRAL ★ 3/10
$13.73 $15.73▲ +14.57%▲ +11.05%$6.72 (−51.06%)
Mar 27, 2026
30w ago
DEFA14A
NEUTRAL ★ 2/10
$12.93 $12.93· 0.00%▼ −3.86%$6.72 (−48.03%)
Showing 10 of 11

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Report published Aug 10, 2026