ADTN Adtran (ADTN) Insider Trading, Ownership & Congress Trades
Tech Hardware · Telephone & telegraph apparatus · CIK 0000926282
C-suite buying · 1
House members buying, 1 year
0
STOCK Act, US House only, disclosed up to 45 days after the trade
Funds added, last quarter
145
13F, latest reported quarter
Conversions, 180 days
3
Codes C/M, not in net · $1.6M priced
What the filings say about ADTN
Insiders, 180 days
-$2.3M net sold
1 buyer · 2 sellers · 0% of sales under a 10b5-1 plan
Adtran insider trades (Form 4)
Form 4 buys and sells (codes P and S). Grants, option exercises
and conversions excluded.
Over the last 180 days, ADTRAN Holdings, Inc. insiders sold a net $2.3M of stock across 26 Form 4 purchases and sales, with 1 insider buying. Source: SEC Form 4 filings, as of 2026-10-28.
Insider
Filed
Shares
Value
Since filing
Context
- 1 earlier Form 4 trade (code P or S) here by this insider (1 buy), the last on Nov 28, 2025.
- The trade is 11.0% of the 59,924 shares held after it.
- No other insider bought within 30 days.
- 145 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: SVP of Finance; CFO Santo Timothy P bought about $50.0K of ADTN on Aug 6, 2026; 145 funds added in the latest 13F quarter.Context
- 6 earlier Form 4 trades (code P or S) here by this insider (1 buy, 5 sales), the last on Sep 4, 2022.
- The trade is 6.5% of the 143,277 shares held after it.
- 1 other insider sold within 30 days.
- 145 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Revenue Officer Wilson James Denson Jr sold about $137.4K of ADTN on May 20, 2026; 1 other insider sold within 30 days and 145 funds added in the latest 13F quarter.Context
- 2 earlier Form 4 trades (code P or S) here by this insider (2 sales), the last on May 7, 2026.
- The trade is 47.8% of the 46,645 shares held after it.
- 1 other insider sold within 30 days.
- 145 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Technology Officer Glingener Christoph sold about $334.2K of ADTN on May 8, 2026; 1 other insider sold within 30 days and 145 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 182.0% of the 46,645 shares held after it.
- 1 other insider sold within 30 days.
- 145 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Technology Officer Glingener Christoph sold about $1.3M of ADTN on May 7, 2026, the largest insider sale at the company on our record; 1 other insider sold within 30 days and 145 funds added in the latest 13F quarter.Context
- First Form 4 purchase or sale (code P or S) here by this insider on our record.
- The trade is 88.4% of the 46,645 shares held after it.
- 1 other insider sold within 30 days.
- 145 funds added in the 13F quarter to Jun 30, 2026.
Insider activity: Chief Technology Officer Glingener Christoph sold about $607.2K of ADTN on May 7, 2026, the largest insider sale at the company since 2022; 1 other insider sold within 30 days and 145 funds added in the latest 13F quarter.26 transactions on record
Since filing: total return from the first close after the filing to the latest close, dividend-adjusted. Not a forecast.
Context lines are counts over the filings above and returns from our own price history, never a price level. Not investment advice.
Seven facts, ranked against the sector ·
Rank is not a forecast
Insiders
net -$2.3M over 180 days
+$50.0K over 90 days
below 55% of Tech Hardware
Congress
no House purchase disclosed in the last 12 months
Funds
145 funds bought in last quarter
more than 59% of Tech Hardware
Revenue
+17.5% year over year
more than 65% of Tech Hardware
Margin
-4.2% net margin
below 56% of Tech Hardware
Buybacks
no share repurchases reported
Short interest
15.8% of the float short (float per yahoo 2026-10-27) · 7.2 days to cover · settled 2026-10-15
more than 90% of Tech Hardware
What changed in the last 30 days
Oct 28Insider selling stopped: no sales in 90 days after 4 in the prior 90
Why it matters
The absence is the signal: 4 sales in one 90-day window and none in the next is a change of behaviour, not a filing.
Watch ADTN
A free account keeps a watchlist and can send one email a day when insiders, funds or Congress file on the names in it. No password and no card.
The year, with the filings on it
Total return over 12 months. Each marker is a filing; hover or tap one for the detail.
-29.5%12M
Insider buyInsider sell
Indexed to 100, dividend-adjusted, not a price chart.
When a name files heavily, the largest trades are drawn first.
Who owns ADTN: institutional holders (13F)
13F holdings, latest reported quarter
7,836,196 sh
$108.9M
5,135,649 sh
$71.4M
3,510,271 sh
$48.8M
3,082,794 sh
$42.9M
2,972,917 sh
$41.3M
Congress trades in ADTN
No Congress trades reported
No House member has disclosed a trade in this stock. See what Congress is buying.
Activist and 5% holders (13D/13G)
No 5%+ ownership filings
Nobody has filed for crossing 5%. That is a fact, not missing data.
ADTN planned insider sales (Form 144)
No planned-sale notices
No insider has filed to sell. Watch this after a run-up.
ADTN mutual fund holders (N-PORT)
Funds ranked by the share of their own portfolio in this stock (N-PORT).
State Street(R) SPDR(R) S&P(R) Telecom ETF
$17.8M position · as of 2026-06-30
2.5%
Aztlan North America Nearshoring Stock Selection ETF
$607.1K position · as of 2026-07-31
2.0%
Counterpoint Quantitative Equity ETF
$7.4M position · as of 2026-06-30
2.0%
Royce Smaller-Companies Growth Fund
$4.0M position · as of 2026-06-30
1.7%
Inspire Fidelis Multi Factor ETF
$2.6M position · as of 2026-05-31
1.3%
Needham Small Cap Growth Fund
$4.9M position · as of 2026-06-30
1.2%
SEC N-PORT, monthly, about 60 days late · funds ≥ $10M ·
% is the share of the fund's own portfolio
Executive pay vs shareholder return
CEO pay, headline and as actually paid, against the company's
return and its chosen peers' (DEF 14A).
FY
CEO total
Actually paid
Other execs, avg
TSR
Peer TSR
2025
$7.7M
$6.5M
$1.1M
-37%
+17%
2024
$3.8M
$3.7M
$754.5K
-40%
+5%
2023
$5.8M
-$3.4M
$1.3M
-47%
-8%
2022
$10.5M
$9.2M
$1.1M
+32%
-19%
2021
$4.5M
$6.6M
$1.2M
+57%
+6%
Tagged by the company under SEC Item 402(v). Returns are
cumulative from the start of the disclosure period. Green where the company beat its own peer group.
Live price
Daily candles from TradingView, under their licence. No filings marked.
Why this name is on the desk
The complete filing record, in one place.
The record shows a net $2.3M sold by insiders over 180 days, 145 funds added last quarter. Each figure is a federal filing, dated the day it went public.
ADTN financials
Revenue growth
+17.5%
XBRL, annual
Net margin
-4.2%
Ratios from the company's XBRL filings, latest filings
Revenue, TTM
$1.1B
four quarters, 2025-07-01 to 2026-06-30
Revenue, TTM ADTN
| FY Dec 2025 | $1.1B |
| FY Dec 2024 | $922.7M |
| FY Dec 2023 | $1.1B |
| FY Dec 2022 | $1.0B |
| FY Dec 2021 | $563.0M |
| Jun 2026 | $281.1M |
| Mar 2026 | $286.1M |
| Dec 2025 | $291.6M |
| Sep 2025 | $279.4M |
| Jun 2025 | $265.1M |
| Mar 2025 | $247.7M |
| Dec 2024 | $242.9M |
| Sep 2024 | $227.7M |
At each fiscal year end
Single quarter
Net margin, TTM
-2.3%
net income over revenue, 2025-07-01 to 2026-06-30
Net margin, TTM ADTN
| FY Dec 2025 | -4.2% |
| FY Dec 2024 | -49.8% |
| FY Dec 2023 | -23.4% |
| FY Dec 2022 | n/a |
| FY Dec 2021 | -1.5% |
| Jun 2026 | -3.9% |
| Mar 2026 | -0.5% |
| Dec 2025 | -1.2% |
| Sep 2025 | -3.7% |
| Jun 2025 | -7.7% |
| Mar 2025 | -4.5% |
| Dec 2024 | -19.0% |
| Sep 2024 | -14.6% |
At each fiscal year end
Single quarter
Free cash flow, TTM
$56.9M
operating cash flow minus capex, 2025-07-01 to 2026-06-30
Free cash flow, TTM ADTN
| FY Dec 2025 | $98.0M |
| FY Dec 2024 | $69.1M |
| FY Dec 2023 | -$79.4M |
| FY Dec 2022 | -$61.3M |
| FY Dec 2021 | -$2.7M |
| Jun 2026 | $17.0M |
| Mar 2026 | $5.2M |
| Dec 2025 | $30.6M |
| Sep 2025 | $4.2M |
| Jun 2025 | $27.5M |
| Mar 2025 | $35.8M |
| Dec 2024 | -$895.0K |
| Sep 2024 | $37.1M |
At each fiscal year end
Single quarter
Debt to equity
0.19x
LongTermDebt as filed 2019-12-31 (79 months older than the period end) (includes the current portion); equity 2026-06-30
Debt to equity ADTN
| FY Dec 2025 | 0.17x |
| FY Dec 2024 | 0.19x |
| FY Dec 2023 | 0.04x |
| FY Dec 2022 | 0.02x |
| FY Dec 2021 | 0.07x |
| Jun 2026 | 0.19x |
| Mar 2026 | 0.18x |
| Dec 2025 | 0.17x |
| Sep 2025 | 0.17x |
| Jun 2025 | 0.15x |
| Mar 2025 | 0.18x |
| Dec 2024 | 0.19x |
| Sep 2024 | 0.12x |
At each fiscal year end
Trailing four quarters at each quarter end
Cash flow to debt
3.78x
TTM operating cash flow over LongTermDebt as filed 2019-12-31 (79 months older than the period end) (includes the current portion)
Cash flow to debt ADTN
| FY Dec 2025 | 5.28x |
| FY Dec 2024 | 4.21x |
| FY Dec 2023 | -1.75x |
| FY Dec 2022 | -1.80x |
| FY Dec 2021 | 0.12x |
| Jun 2026 | 3.78x |
| Mar 2026 | 4.03x |
| Dec 2025 | 5.28x |
| Sep 2025 | 3.66x |
| Jun 2025 | 4.92x |
| Mar 2025 | 4.42x |
| Dec 2024 | 4.21x |
| Sep 2024 | 3.55x |
At each fiscal year end
Trailing four quarters at each quarter end
Return on equity
-17.4%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on equity ADTN
| FY Dec 2025 | -33.5% |
| FY Dec 2024 | -125.6% |
| FY Dec 2023 | -28.2% |
| FY Dec 2022 | n/a |
| FY Dec 2021 | -2.4% |
| Jun 2026 | -17.4% |
| Mar 2026 | -25.8% |
| Dec 2025 | -33.5% |
| Sep 2025 | -50.8% |
| Jun 2025 | -58.1% |
| Mar 2025 | -70.2% |
| Dec 2024 | -125.6% |
| Sep 2024 | -119.4% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on assets
-2.2%
TTM net income over average of 2025-06-30 and 2026-06-30
Return on assets ADTN
| FY Dec 2025 | -3.8% |
| FY Dec 2024 | -32.3% |
| FY Dec 2023 | -14.8% |
| FY Dec 2022 | n/a |
| FY Dec 2021 | -1.6% |
| Jun 2026 | -2.2% |
| Mar 2026 | -3.0% |
| Dec 2025 | -3.8% |
| Sep 2025 | -7.1% |
| Jun 2025 | -8.9% |
| Mar 2025 | -11.1% |
| Dec 2024 | -32.3% |
| Sep 2024 | -35.0% |
At each fiscal year end
Trailing four quarters at each quarter end
Return on invested capital
n/a
pre-tax loss, no effective tax rate to apply
Return on invested capital ADTN
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Return on capital employed
-0.2%
operating income (EBIT proxy) over average of 2025-06-30 and 2026-06-30 minus current liabilities
Return on capital employed ADTN
| FY Dec 2025 | -1.8% |
| FY Dec 2024 | -37.5% |
| FY Dec 2023 | -15.3% |
| FY Dec 2022 | -7.6% |
| FY Dec 2021 | -3.5% |
| Jun 2026 | -0.2% |
| Mar 2026 | -0.6% |
| Dec 2025 | -1.8% |
| Sep 2025 | -4.0% |
| Jun 2025 | -6.3% |
| Mar 2025 | -8.8% |
| Dec 2024 | -37.5% |
| Sep 2024 | -37.3% |
At each fiscal year end
Trailing four quarters at each quarter end
P/E, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
P/E, trailing ADTN
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | 134.21x |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Enterprise value
$506.0M
market value at close 2026-10-27 on 2026-08-03 shares, plus LongTermDebt as filed 2019-12-31 (79 months older than the period end) (includes the current portion), minus cash 2026-06-30
Enterprise value ADTN
| FY Dec 2025 | $625.1M |
| FY Dec 2024 | $608.7M |
| FY Dec 2023 | $515.1M |
| FY Dec 2022 | $1.4B |
| FY Dec 2021 | $1.1B |
| Jun 2026 | $1.1B |
| Mar 2026 | $951.0M |
| Dec 2025 | $625.1M |
| Sep 2025 | $681.8M |
| Jun 2025 | $635.7M |
| Mar 2025 | $619.7M |
| Dec 2024 | $608.7M |
| Sep 2024 | $406.0M |
At each fiscal year end
Trailing four quarters at each quarter end
FCF yield
+10.2%
TTM free cash flow over market value at close 2026-10-27
FCF yield ADTN
| FY Dec 2025 | +14.1% |
| FY Dec 2024 | +10.5% |
| FY Dec 2023 | -13.7% |
| FY Dec 2022 | -4.2% |
| FY Dec 2021 | -0.2% |
| Jun 2026 | +5.1% |
| Mar 2026 | +6.6% |
| Dec 2025 | +14.1% |
| Sep 2025 | +8.9% |
| Jun 2025 | +13.9% |
| Mar 2025 | +11.6% |
| Dec 2024 | +10.5% |
| Sep 2024 | +11.4% |
At each fiscal year end
Trailing four quarters at each quarter end
PEG, trailing
n/a
trailing loss, a multiple of a loss is not meaningful
PEG, trailing ADTN
| FY Dec 2025 | n/a |
| FY Dec 2024 | n/a |
| FY Dec 2023 | n/a |
| FY Dec 2022 | n/a |
| FY Dec 2021 | n/a |
| Jun 2026 | n/a |
| Mar 2026 | n/a |
| Dec 2025 | n/a |
| Sep 2025 | n/a |
| Jun 2025 | n/a |
| Mar 2025 | n/a |
| Dec 2024 | n/a |
| Sep 2024 | n/a |
At each fiscal year end
Trailing four quarters at each quarter end
Price as of 2026-10-27. Hover or tap a tile for its yearly and quarterly history.
Method
TTM is four consecutive fiscal quarters; Q4 is the year minus nine months when not filed. Returns use the average of opening and closing balances. EBIT is approximated by operating income. PEG uses trailing EPS growth.
Fundamentals
Annual figures from XBRL filings. Pick a past date to see them as known then.
| 2025-12 | 2024-12 | 2023-12 | 2022-12 | |
|---|---|---|---|---|
| Revenue | $1.1B | $922.7M | $1.1B | $1.0B |
| Gross profit | $415.0M | $324.2M | $331.1M | $327.3M |
| Operating income | -$15.6M | -$427.6M | -$223.7M | -$72.8M |
| Net income | -$45.7M | -$459.9M | -$268.9M | -$2.0M |
| EPS (diluted) | -0.52 | -5.79 | -3.43 | -0.03 |
| Operating cash flow | $129.8M | $103.6M | -$43.0M | -$44.2M |
| Cash | $95.7M | $76.0M | $87.2M | $108.6M |
| Dividends paid | n/a | $0 | $21.2M | $22.9M |
SEC XBRL, fiscal years, as known on 2026-10-28
ADTN Stock Sonar score 6/7 axes
Find similar shapesCompareADTN ranks highest on financial health (68th percentile) and growth (65th), and lowest on risk and compliance (16th), among Tech Hardware peers.
6 of 7 axes scored. Each is a percentile against sector peers (all companies when the sector is thin); higher is better. An unscored axis is unmeasured, not low. How it is scored
ADTN filings, in plain words
Are Adtran insiders buying or selling ADTN?
In the 180 days to 2026-10-28, Adtran insiders were net sellers, a net $2.3M: $50.0K of purchases and $2.4M of sales reported on Form 4, by 1 buyer and 2 sellers.
Read the full summary
In the 180 days to 2026-10-28, Adtran insiders were net sellers of ADTN, a net $2.3M across purchases and sales reported on Form 4 by 1 buyer and 2 sellers. Sales outweighed purchases more than tenfold by value. None of the 4 insider sales was flagged as made under a Rule 10b5-1 plan. Each figure is counted from SEC and House filings as of 2026-10-28, dated the day the filing was made public.
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