Kathryn A Walker
Insider
First SEC filing: July 11, 2022 · Latest: July 11, 2022
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2025 | ADTN | A | 13,809 | · | · | 98,663 Direct | +16.27% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2024 | ADTN | A | 14,406 | · | · | 84,854 Direct | +20.45% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2023 | ADTN | M | 168 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2023 | ADTN | A | 16,349 | · | · | 70,448 Direct | +30.22% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2023 | ADTN | D | 0 | $7.34 | · | 54,099 Direct | 0.00% | Disposed | -4.1% (price as of 2026-10-02) |
| Dec. 31, 2023 | ADTN | M | 168 | · | · | 54,099 Direct | +0.31% | Acquired | (price as of 2026-10-02) |
| Sept. 5, 2023 | ADTN | A | 69 | $8.37 | $578 | 168 Direct | +69.70% | Acquired | -15.9% (price as of 2026-10-02) |
| June 6, 2023 | ADTN | A | 63 | $9.14 | $576 | 99 Direct | +175.00% | Acquired | -23.0% (price as of 2026-10-02) |
| March 21, 2023 | ADTN | A | 36 | $15.96 | $575 | 36 Direct | · | Acquired | -55.9% (price as of 2026-10-02) |
| Jan. 24, 2023 | ADTN | A | 1,629 | · | · | 53,931 Direct | +3.11% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2022 | ADTN | M | 69 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2022 | ADTN | A | 4,790 | · | · | 52,302 Direct | +10.08% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2022 | ADTN | D | 0 | $18.79 | · | 47,512 Direct | 0.00% | Disposed | -62.5% (price as of 2026-10-02) |
| Dec. 31, 2022 | ADTN | M | 69 | · | · | 47,512 Direct | +0.15% | Acquired | (price as of 2026-10-02) |
| Dec. 6, 2022 | ADTN | A | 18 | $19.38 | $349 | 69 Direct | +35.29% | Acquired | -63.7% (price as of 2026-10-02) |
| Sept. 1, 2022 | ADTN | A | 16 | $22.70 | $363 | 47,494 Direct | +0.03% | Acquired | -69.0% (price as of 2026-10-02) |
| July 8, 2022 | ADTN | A | 47,479 | · | · | 47,479 Direct | · | Acquired | (price as of 2026-10-02) |
| July 8, 2022 | ADTN | D | 47,479 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 2, 2022 | ADTN | A | 18 | $19.69 | $354 | 36 Direct | +100.00% | Acquired | -64.2% (price as of 2026-10-02) |
| March 3, 2022 | ADTN | A | 18 | $20.27 | $365 | 18 Direct | · | Acquired | -65.3% (price as of 2026-10-02) |
| Dec. 31, 2021 | ADTN | M | 114 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2021 | ADTN | A | 3,943 | · | · | 47,443 Direct | +9.06% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2021 | ADTN | D | 0 | $22.83 | · | 43,500 Direct | 0.00% | Disposed | -69.2% (price as of 2026-10-02) |
| Dec. 31, 2021 | ADTN | M | 114 | · | · | 43,500 Direct | +0.26% | Acquired | (price as of 2026-10-02) |
| Nov. 30, 2021 | ADTN | A | 27 | · | · | 114 Direct | +31.03% | Acquired | (price as of 2026-10-02) |
| Sept. 2, 2021 | ADTN | A | 26 | · | · | 88 Direct | +41.94% | Acquired | (price as of 2026-10-02) |
| June 3, 2021 | ADTN | A | 27 | · | · | 61 Direct | +79.41% | Acquired | (price as of 2026-10-02) |
| March 4, 2021 | ADTN | A | 34 | · | · | 34 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2020 | ADTN | M | 318 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2020 | ADTN | A | 6,094 | · | · | 43,386 Direct | +16.34% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2020 | ADTN | D | 0 | $14.77 | · | 37,292 Direct | 0.00% | Disposed | -52.3% (price as of 2026-10-02) |
| Dec. 31, 2020 | ADTN | M | 318 | · | · | 37,292 Direct | +0.86% | Acquired | (price as of 2026-10-02) |
| Dec. 1, 2020 | ADTN | A | 65 | · | · | 318 Direct | +25.69% | Acquired | (price as of 2026-10-02) |
| Sept. 3, 2020 | ADTN | A | 79 | · | · | 253 Direct | +45.40% | Acquired | (price as of 2026-10-02) |
| June 4, 2020 | ADTN | A | 72 | · | · | 174 Direct | +70.59% | Acquired | (price as of 2026-10-02) |
| March 5, 2020 | ADTN | A | 102 | · | · | 102 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2019 | ADTN | M | 250 | · | · | 27,818 Direct | +0.91% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2019 | ADTN | D | 0 | $9.89 | · | 27,818 Direct | 0.00% | Disposed | -28.8% (price as of 2026-10-02) |
| Dec. 31, 2019 | ADTN | A | 9,156 | · | · | 36,974 Direct | +32.91% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2019 | ADTN | M | 250 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 2, 2019 | ADTN | A | 82 | · | · | 250 Direct | +48.81% | Acquired | (price as of 2026-10-02) |
| Aug. 15, 2019 | ADTN | A | 71 | · | · | 168 Direct | +73.20% | Acquired | (price as of 2026-10-02) |
| May 16, 2019 | ADTN | A | 46 | · | · | 97 Direct | +90.20% | Acquired | (price as of 2026-10-02) |
| Feb. 21, 2019 | ADTN | A | 51 | · | · | 51 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2018 | ADTN | A | 8,318 | · | · | 27,568 Direct | +43.21% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2018 | ADTN | M | 111 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2018 | ADTN | A | 8,318 | · | · | 29,412 Direct | +39.43% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2018 | ADTN | D | 1 | $10.74 | $11 | 21,094 Direct | 0.00% | Disposed | -34.5% (price as of 2026-10-02) |
| Dec. 31, 2018 | ADTN | M | 111 | · | · | 21,095 Direct | +0.53% | Acquired | (price as of 2026-10-02) |
| Nov. 14, 2018 | ADTN | A | 31 | · | · | 111 Direct | +38.75% | Acquired | (price as of 2026-10-02) |
| Aug. 15, 2018 | ADTN | A | 26 | · | · | 80 Direct | +48.15% | Acquired | (price as of 2026-10-02) |
| May 16, 2018 | ADTN | A | 28 | · | · | 54 Direct | +107.69% | Acquired | (price as of 2026-10-02) |
| Feb. 14, 2018 | ADTN | A | 26 | · | · | 26 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2017 | ADTN | M | 70 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2017 | ADTN | A | 4,651 | · | · | 20,984 Direct | +28.48% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2017 | ADTN | D | 1 | $19.35 | $19 | 16,333 Direct | -0.01% | Disposed | -63.6% (price as of 2026-10-02) |
| Dec. 31, 2017 | ADTN | M | 70 | · | · | 16,334 Direct | +0.43% | Acquired | (price as of 2026-10-02) |
| Nov. 15, 2017 | ADTN | A | 17 | · | · | 70 Direct | +32.08% | Acquired | (price as of 2026-10-02) |
| Aug. 17, 2017 | ADTN | A | 17 | · | · | 52 Direct | +48.57% | Acquired | (price as of 2026-10-02) |
| May 18, 2017 | ADTN | A | 19 | · | · | 35 Direct | +118.75% | Acquired | (price as of 2026-10-02) |
| Feb. 16, 2017 | ADTN | A | 17 | · | · | 17 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2016 | ADTN | M | 90 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2016 | ADTN | A | 4,027 | · | · | 16,264 Direct | +32.91% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2016 | ADTN | D | 1 | $22.35 | $22 | 12,237 Direct | -0.01% | Disposed | -68.5% (price as of 2026-10-02) |
| Dec. 31, 2016 | ADTN | M | 90 | · | · | 12,238 Direct | +0.74% | Acquired | (price as of 2026-10-02) |
| Nov. 17, 2016 | ADTN | A | 21 | · | · | 90 Direct | +30.43% | Acquired | (price as of 2026-10-02) |
| Aug. 11, 2016 | ADTN | A | 23 | · | · | 68 Direct | +51.11% | Acquired | (price as of 2026-10-02) |
| May 12, 2016 | ADTN | A | 22 | · | · | 45 Direct | +95.65% | Acquired | (price as of 2026-10-02) |
| Feb. 18, 2016 | ADTN | A | 23 | · | · | 23 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2015 | ADTN | M | 76 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2015 | ADTN | A | 4,646 | · | · | 12,148 Direct | +61.93% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2015 | ADTN | D | 0 | $17.22 | · | 7,502 Direct | 0.00% | Disposed | -59.1% (price as of 2026-10-02) |
| Dec. 31, 2015 | ADTN | M | 76 | · | · | 7,502 Direct | +1.02% | Acquired | (price as of 2026-10-02) |
| Nov. 12, 2015 | ADTN | A | 21 | · | · | 76 Direct | +38.18% | Acquired | (price as of 2026-10-02) |
| Aug. 13, 2015 | ADTN | A | 21 | · | · | 55 Direct | +61.76% | Acquired | (price as of 2026-10-02) |
| May 21, 2015 | ADTN | A | 20 | · | · | 34 Direct | +142.86% | Acquired | (price as of 2026-10-02) |
| May 14, 2015 | ADTN | D | 34 | $16.64 | $566 | 14 Direct | · | Acquired | -57.7% (price as of 2026-10-02) |
| May 14, 2015 | ADTN | M | 0 | $16.64 | · | 5,572 Direct | 0.00% | Disposed | -57.7% (price as of 2026-10-02) |
| May 14, 2015 | ADTN | M | 24 | · | · | 5,572 Direct | +0.43% | Acquired | (price as of 2026-10-02) |
| Feb. 19, 2015 | ADTN | A | 22 | · | · | 38 Direct | +137.50% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2014 | ADTN | A | 3,670 | · | · | 7,426 Direct | +97.71% | Acquired | (price as of 2026-10-02) |
| Nov. 13, 2014 | ADTN | A | 9 | · | · | 17 Direct | +112.50% | Acquired | (price as of 2026-10-02) |
| Nov. 13, 2014 | ADTN | M | 18 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 14, 2014 | ADTN | A | 8 | · | · | 8 Direct | · | Acquired | (price as of 2026-10-02) |
| Aug. 14, 2014 | ADTN | M | 15 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| May 14, 2014 | ADTN | A | 1,878 | · | · | 1,878 Direct | · | Acquired | (price as of 2026-10-02) |
| May 14, 2014 | ADTN | A | 3,756 | · | · | 3,756 Direct | · | Acquired | (price as of 2026-10-02) |
P = Open-market purchase · S = Sale · A = Grant/award · M = Option exercise · G = Gift · F = Tax withholding
Insider transactions are not a recommendation; sales are often driven by liquidity or tax reasons.
Derivative holdings (Form 4 Table II) Options, RSUs and convertible securities reported on Form 4 Table II.
| Date | Ticker | Security | Underlying | Exercise price | Expiration | Shares | A/D |
|---|---|---|---|---|---|---|---|
| Dec. 31, 2023 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 168 | Disposed |
| Sept. 5, 2023 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 69 | Acquired |
| June 6, 2023 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 63 | Acquired |
| March 21, 2023 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 36 | Acquired |
| Dec. 31, 2022 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 69 | Disposed |
| Dec. 6, 2022 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 18 | Acquired |
| June 2, 2022 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 18 | Acquired |
| March 3, 2022 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 18 | Acquired |
| Dec. 31, 2021 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 114 | Disposed |
| Nov. 30, 2021 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 27 | Acquired |
| Sept. 2, 2021 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 26 | Acquired |
| June 3, 2021 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 27 | Acquired |
| March 4, 2021 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 34 | Acquired |
| Dec. 31, 2020 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 318 | Disposed |
| Dec. 1, 2020 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 65 | Acquired |
| Sept. 3, 2020 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 79 | Acquired |
| June 4, 2020 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 72 | Acquired |
| March 5, 2020 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 102 | Acquired |
| Dec. 31, 2019 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 250 | Disposed |
| Dec. 2, 2019 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 82 | Acquired |
| Aug. 15, 2019 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 71 | Acquired |
| May 16, 2019 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 46 | Acquired |
| Feb. 21, 2019 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 51 | Acquired |
| Dec. 31, 2018 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 111 | Disposed |
| Nov. 14, 2018 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 31 | Acquired |
| Aug. 15, 2018 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 26 | Acquired |
| May 16, 2018 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 28 | Acquired |
| Feb. 14, 2018 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 26 | Acquired |
| Dec. 31, 2017 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 70 | Disposed |
| Nov. 15, 2017 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 17 | Acquired |
| Aug. 17, 2017 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 17 | Acquired |
| May 18, 2017 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 19 | Acquired |
| Feb. 16, 2017 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 17 | Acquired |
| Dec. 31, 2016 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 90 | Disposed |
| Nov. 17, 2016 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 21 | Acquired |
| Aug. 11, 2016 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 23 | Acquired |
| May 12, 2016 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 22 | Acquired |
| Feb. 18, 2016 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 23 | Acquired |
| Dec. 31, 2015 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 76 | Acquired |
| Nov. 12, 2015 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 21 | Acquired |
| Aug. 13, 2015 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 21 | Acquired |
| May 21, 2015 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 20 | Acquired |
| May 14, 2015 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 34 | Acquired |
| Feb. 19, 2015 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 22 | Acquired |
| Nov. 13, 2014 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 9 | Acquired |
| Nov. 13, 2014 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 18 | Acquired |
| Aug. 14, 2014 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 8 | Acquired |
| Aug. 14, 2014 | ADTN | Dividend Equivalent Rights | Common Stock | · | · | 15 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| July 11, 2022 | ADTN | No securities are beneficially owned | 0 | Direct |