Stocks › ADTN
ADTRAN Holdings, Inc.
ADTN·Nasdaq·
United States·USD
United States·USD$7.62
+0.47 (+6.57%)
Close · Oct 6, 2026 · Close Prices from Tiingo.com
ADTN
ADTRAN Holdings, Inc. · Nasdaq
Nasdaq 100S&P 500
Filings
Default90D1Y5YALL
ADTNS&P 500 (rebased)
Congress BuyCongress SellInsider BuyInsider SellForm 1448-K ResultsLobbying
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Daily closes, adjusted for splits and dividends · Close Prices from Tiingo.comHover a marker, every one is a filing · move across the line for the crosshair
Congressional Trades
Recent trades of ADTN by members of U.S. Congress · 1 on record
| Politician | Stock | Type | Filed | Traded | |
|---|---|---|---|---|---|
 Mo BrooksHouse · R · AL |
ADTNADTRAN Holdings, Inc. · Stock |
Sale $1,001 - $15,000 |
Jan 20, 2020 | Jan 2, 2020 | Filing ↗ |
Whale Activity
Position changes in ADTN reported for 2026-06-30 by 11 tracked institutional filers
- Increased6
- New0
- Held0
- Decreased3
- Closed0
- No prior filing2
| Filer | Shares | Value | Change |
|---|---|---|---|
| BlackRock, Inc. | 7.8M | $108.9M | decreased |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 5.1M | $71.4M | increased |
| VANGUARD CAPITAL MANAGEMENT LLC | 3.5M | $48.8M | increased |
| TWO SIGMA INVESTMENTS, LP | 2.9M | $40.3M | increased |
| MILLENNIUM MANAGEMENT LLC | 2.7M | $37.8M | increased |
| RENAISSANCE TECHNOLOGIES LLC | 1.8M | $24.7M | increased |
| D. E. Shaw & Co., Inc. | 1.1M | $15.2M | decreased |
| Point72 Asset Management, L.P. | 764.8K | $10.6M | increased |
| Bienville Capital Management, LLC | 127.2K | $1.8M | — |
| Worth Venture Partners, LLC | 30.1K | $418K | — |
| CITADEL ADVISORS LLC | 29.6K | $412K | decreased |
KeyVex tracks a curated set of large 13F filers plus the largest positions in recent filings, so this is a sample of institutional activity, not the whole market.
Insider Trading
Net shares bought (+) or sold (−) on the open market by ADTN insiders, by quarter · Form 4
Recent Insider Transactions
1,235 transactions on record · newest first
| Insider | Type | Shares | Price | Value | Date | |
|---|---|---|---|---|---|---|
| Santo Timothy PSVP of Finance; CFO | Purchase | +6,579 | $7.60 | $50K | Aug 6, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Gift | −10.5K | $0.00 | $0 | May 20, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Sale | −9,332 | $14.72 | $137K | May 20, 2026 | Form 4 ↗ |
| Glingener ChristophChief Technology Officer | Sale | −22.3K | $15.00 | $334K | May 8, 2026 | Form 4 ↗ |
| Glingener ChristophChief Technology Officer | Option exercise | +22.3K | $12.17 | $271K | May 8, 2026 | Form 4 ↗ |
| Glingener ChristophChief Technology Officer | Sale | −84.9K | $15.06 | $1.3M | May 7, 2026 | Form 4 ↗ |
| Glingener ChristophChief Technology Officer | Option exercise | +84.9K | $12.17 | $1.0M | May 7, 2026 | Form 4 ↗ |
| Glingener ChristophChief Technology Officer | Sale | −41.2K | $14.73 | $607K | May 7, 2026 | Form 4 ↗ |
| Glingener ChristophChief Technology Officer | Option exercise | +41.2K | $7.01 | $289K | May 7, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Grant / award | +24.9K | $0.00 | $0 | Apr 1, 2026 | Form 4 ↗ |
| Santo Timothy PSVP of Finance; CFO | Grant / award | +28.3K | $0.00 | $0 | Apr 1, 2026 | Form 4 ↗ |
| STANTON THOMAS RChairman & CEO · Director | Grant / award | +170.7K | $0.00 | $0 | Apr 1, 2026 | Form 4 ↗ |
| Santo Timothy PSVP of Finance; CFO | Tax withholding | −1,501 | $11.90 | $18K | Mar 19, 2026 | Form 4 ↗ |
| Jacqueline Hourigan RiceDirector | Sale | −14.4K | $10.29 | $148K | Mar 4, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Tax withholding Amended | −1,309 | $9.24 | $12K | Jan 26, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Tax withholding | −1,087 | $9.24 | $10K | Jan 26, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Grant / award | +3,777 | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| STANTON THOMAS RChairman & CEO · Director | Tax withholding | −12.4K | $9.24 | $115K | Jan 26, 2026 | Form 4 ↗ |
| STANTON THOMAS RChairman & CEO · Director | Grant / award | +28.0K | $0.00 | $0 | Jan 26, 2026 | Form 4 ↗ |
| Wilson James Denson JrChief Revenue Officer | Tax withholding | −998 | $9.73 | $10K | Jan 26, 2026 | Form 4 ↗ |
Fund Holders
Mutual funds and ETFs holding ADTN · SEC Form N-PORT
| Fund | Shares | Value | % of fund | As of |
|---|---|---|---|---|
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 2.6M | $35.7M | 0.00% | Jun 30, 2026 |
| VANGUARD INFORMATION TECHNOLOGY INDEX FUND VANGUARD WORLD FUND | 1.8M | $30.0M | 0.02% | May 31, 2026 |
| iShares Russell 2000 ETF iShares Trust | 2.0M | $27.9M | 0.03% | Jun 30, 2026 |
| State Street(R) SPDR(R) S&P(R) Telecom ETF SPDR SERIES TRUST | 1.3M | $17.8M | 2.51% | Jun 30, 2026 |
| JPMorgan Small Cap Growth Fund JPMorgan Trust II | 949.5K | $13.2M | 0.51% | Jun 30, 2026 |
| VANGUARD STRATEGIC EQUITY FUND VANGUARD HORIZON FUNDS | 918.6K | $12.8M | 0.10% | Jun 30, 2026 |
| Invesco Dorsey Wright Technology Momentum ETF Invesco Exchange-Traded Fund Trust | 684.0K | $12.1M | 2.08% | Apr 30, 2026 |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 858.3K | $11.9M | 0.01% | Jun 30, 2026 |
| Fidelity Enhanced Small Cap Core ETF Fidelity Covington Trust | 848.5K | $11.8M | 0.20% | Jun 30, 2026 |
| Heartland Value Fund HEARTLAND GROUP INC. | 750.0K | $10.4M | 0.89% | Jun 30, 2026 |
Mutual funds and ETFs whose N-PORT filings list ADTN's shares (CUSIP 00486H105), each fund at its latest report since Mar 7, 2026, largest positions first. Bonds, options and short positions are left out.
Activist & Passive Stakes
Schedule 13D / 13G beneficial-ownership filings
No 13D/13G beneficial-ownership filings on record.
Corporate Lobbying
Estimated quarterly lobbying spending reported under the LDA, filings naming adtran as client
- FTI GOVERNMENT AFFAIRSADTRAN · 2026 Q2 · TEC, COM, DEF, TRD$50K
Filing ↗ - FTI GOVERNMENT AFFAIRSADTRAN · 2026 Q2—
Filing ↗ - FTI GOVERNMENT AFFAIRSADTRAN · 2026 Q1 · TEC, COM, DEF, TRD$50K
Filing ↗ - FTI GOVERNMENT AFFAIRSADTRAN · 2025 Q3 · TEC, COM, DEF, TRD$50K
Filing ↗ - FTI GOVERNMENT AFFAIRSADTRAN · 2025 Q3 · TEC, COM, DEF, TRD$50K
Filing ↗
Government Contracts
Federal awards to ADTRAN Holdings, Inc. · USAspending
No federal contract awards found for ADTRAN Holdings, Inc..
U.S. Patents
Recent USPTO applications naming ADTRAN Holdings, Inc.
No USPTO patent applications found for ADTRAN Holdings, Inc..
Annual Financials
From ADTN's 10-K filings · XBRL
No annual XBRL figures on record for ADTN. KeyVex's fundamentals cover about 130 large companies so far.
Stock Splits
Every split and reverse split in the price history
- 2-for-1Stock splitDec 16, 2003
- 2-for-1Stock splitMay 15, 1995
Split dates and ratios from the price history · Close Prices from Tiingo.com
Material Events (8-K)
Corporate events filed with the SEC
- 8-K · Items 5.02, 9.01Officer / director changeAug 10, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureAug 4, 2026
EDGAR ↗ - 8-K · Items 1.01, 1.02, 2.03, 9.01Material agreement · Termination of agreement · Direct financial obligationJul 23, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureJul 22, 2026
EDGAR ↗ - 8-K · Items 5.02, 8.01, 9.01Officer / director change · Other eventsJun 26, 2026
EDGAR ↗ - 8-K · Items 5.03, 5.07, 9.01Bylaw amendment · Shareholder voteMay 18, 2026
EDGAR ↗ - 8-K · Items 2.02, 7.01, 9.01Results of operations · Reg FD disclosureMay 5, 2026
EDGAR ↗
About ADTRAN Holdings, Inc.
From SEC EDGAR company records
Industry (SIC 3661)Telephone & Telegraph Apparatus
SectorTechnology
HeadquartersHUNTSVILLE, AL
SEC CIK0000926282 ↗
Former namesADTRAN INC