ADTRAN Holdings, Inc. (ADTN)
- Sector
- Communications
- Last price
- $4.04
- As of
Kresmion compiles this page from ADTN's SEC filings, its 13F institutional holders and the market events Kresmion detects, each linked to its source.
ADTRAN Holdings, Inc. (ADTN): 6 institutional managers tracked by Kresmion reported non-option positions in their 2026Q2 Form 13F filings, and the most recent SEC filing on record for the company is a Form 10-Q filed 2026-11-05.
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Preview the ADTN dossierActive events for ADTN
- high13F: funds added
4 tracked funds increased ADTN this 2026Q2, institutional consensus
- high13F: funds added
3 tracked funds increased ADTN this 2026Q2, institutional consensus
- high13F: large increase
CITADEL ADVISORS LLC added +117% to ADTN (2026Q2)
- high13F: large increase
CITADEL ADVISORS LLC added +447% to ADTN (2026Q2)
- high13F: large increase
RENAISSANCE TECHNOLOGIES LLC added +774% to ADTN (2026Q2)
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Every event on ADTN, as it fires
You are seeing 5 of 7 events recorded on ADTN since 2026-07-24.
The five above landed across 2 days. The other 2 were recorded on 1 other days. 5 of the 7 are institutional flow rows, which arrive in batches on filing days.
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ADTN positions held by the managers we follow (2026Q2)
What the managers we follow bought and sold in Q2 2026
| Manager / security | Market value | % of reported value |
|---|---|---|
| TWO SIGMA INVESTMENTS, LP FundCUSIP 00486H105 · 2026Q2 | $40.3M | 0.03% |
| MILLENNIUM MANAGEMENT LLC FundCUSIP 00486H105 · 2026Q2 | $37.8M | 0.03% |
| RENAISSANCE TECHNOLOGIES LLC FundCUSIP 00486H105 · 2026Q2 | $24.7M | 0.03% |
| D. E. Shaw & Co., Inc. FundCUSIP 00486H105 · 2026Q2 | $15.2M | 0.01% |
| Point72 Asset Management, L.P. FundCUSIP 00486H105 · 2026Q2 | $10.6M | 0.02% |
| CITADEL ADVISORS LLC FundCUSIP 00486H105 · 2026Q2 | $412K | 0.00% |
Quarterly SEC Form 13F disclosures from the managers Kresmion tracks, not a complete ownership ranking. Non-option holdings only; reported put and call positions are excluded. Different securities are labeled by CUSIP. The share of reported value is each position's value over the sum of the values that manager reported for the quarter; option lines are not in that sum, as on each fund page. Values are reporting-period snapshots, not current position values. Filings can arrive up to 45 days after quarter-end.
Recent SEC filings, ADTN
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 10-QSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
- 8-KSEC EDGAR ↗
More data on ADTN
ADTN against its peers
ADTN's operating margin of -1.4% ranks in the 5th percentile of 9 Communications sub-industry peers, fiscal periods ending between 2025-12-31 and 2026-06-30.
| Metric | ADTN | Peer median | Percentile | n |
|---|---|---|---|---|
| Revenue FY | 1.1B USD | 1.4B USD | 39 | 8 |
| Gross margin | 38.3% | 53.2% | 6 | 8 |
| Operating margin | -1.4% | 4.4% | 5 | 9 |
| Net margin | -4.2% | 3.3% | 15 | 9 |
| Return on equity | -31.3% | 2.6% | 6 | 8 |
| P / E | n/a | 37.4x | n/a | 5 |
Peers (9): HLIT, VISN, CALX, NTCT, EXTR, VIAV, VSAT, UI, NOK. Left out: ONDS (no annual filing). Fiscal periods ending between 2025-12-31 and 2026-06-30. Every figure is one full fiscal year read from one annual filing (ADTN: 10-K), reported in USD. Nothing is trailing twelve months and nothing is converted between currencies. Source: SEC EDGAR XBRL company facts (public domain); prices from Kresmion's daily equity market-data snapshot. Open the full comparison.
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Cite this data
Kresmion counts the managers it follows that reported a non-option position in ADTN on Form 13F-HR for the latest reporting quarter, orders those positions by the value each filing reports, and lists the company's latest SEC filings and the events Kresmion recorded on ADTN in the last 180 days.
Upstream: SEC EDGAR filings for ADTN
Kresmion, "ADTRAN Holdings, Inc. (ADTN) institutional holdings and SEC filings", data as of 2026-11-05, https://kresmion.com/research/ADTN. Upstream data: SEC EDGAR filings for ADTN.
Link to this data (HTML):
<a href="https://kresmion.com/research/ADTN">ADTRAN Holdings, Inc. (ADTN) institutional holdings and SEC filings (Kresmion)</a>
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