Donald E. Walther
Insider
First SEC filing: Aug. 15, 2023 · Latest: Aug. 15, 2023
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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | CMTL | M | 15,946 | · | · | 82,461 Direct | +23.97% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2026 | CMTL | F | 5,446 | $1.37 | $7,461 | 77,015 Direct | -6.60% | Disposed | -3.6% (price as of 2026-10-02) |
| Sept. 30, 2026 | CMTL | M | 15,946 | · | · | 122,854 Direct | -11.49% | Disposed | (price as of 2026-10-02) |
| Aug. 11, 2026 | CMTL | M | 5,883 | · | · | 68,525 Direct | +9.39% | Acquired | (price as of 2026-10-02) |
| Aug. 11, 2026 | CMTL | F | 2,010 | $1.73 | $3,477 | 66,515 Direct | -2.93% | Disposed | -23.7% (price as of 2026-10-02) |
| Aug. 11, 2026 | CMTL | M | 5,883 | · | · | 138,800 Direct | -4.07% | Disposed | (price as of 2026-10-02) |
| April 28, 2026 | CMTL | M | 1,685 | · | · | 44,131 Direct | +3.97% | Acquired | (price as of 2026-10-02) |
| April 28, 2026 | CMTL | F | 576 | $3.52 | $2,028 | 43,555 Direct | -1.31% | Disposed | -62.5% (price as of 2026-10-02) |
| April 28, 2026 | CMTL | M | 28,986 | · | · | 72,541 Direct | +66.55% | Acquired | (price as of 2026-10-02) |
| April 28, 2026 | CMTL | F | 9,899 | $3.52 | $34,844 | 62,642 Direct | -13.65% | Disposed | -62.5% (price as of 2026-10-02) |
| April 28, 2026 | CMTL | M | 1,685 | · | · | 173,669 Direct | -0.96% | Disposed | (price as of 2026-10-02) |
| April 28, 2026 | CMTL | M | 28,986 | · | · | 144,683 Direct | -16.69% | Disposed | (price as of 2026-10-02) |
| Nov. 7, 2025 | CMTL | A | 106,908 | · | · | 175,354 Direct | +156.19% | Acquired | (price as of 2026-10-02) |
| Nov. 7, 2025 | CMTL | A | 2,605 | · | · | 43,314 Direct | +6.40% | Acquired | (price as of 2026-10-02) |
| Nov. 7, 2025 | CMTL | F | 868 | $3.04 | $2,639 | 42,446 Direct | -2.00% | Disposed | -56.6% (price as of 2026-10-02) |
| Sept. 30, 2025 | CMTL | M | 15,946 | · | · | 46,020 Direct | +53.02% | Acquired | (price as of 2026-10-02) |
| Sept. 30, 2025 | CMTL | F | 5,311 | $2.58 | $13,702 | 40,709 Direct | -11.54% | Disposed | -48.8% (price as of 2026-10-02) |
| Sept. 30, 2025 | CMTL | M | 15,946 | · | · | 68,446 Direct | -18.90% | Disposed | (price as of 2026-10-02) |
| Aug. 11, 2025 | CMTL | M | 5,882 | · | · | 32,033 Direct | +22.49% | Acquired | (price as of 2026-10-02) |
| Aug. 11, 2025 | CMTL | F | 1,959 | $1.99 | $3,898 | 30,074 Direct | -6.12% | Disposed | -33.7% (price as of 2026-10-02) |
| Aug. 11, 2025 | CMTL | M | 5,882 | · | · | 84,392 Direct | -6.52% | Disposed | (price as of 2026-10-02) |
| April 28, 2025 | CMTL | M | 1,685 | · | · | 26,713 Direct | +6.73% | Acquired | (price as of 2026-10-02) |
| April 28, 2025 | CMTL | F | 562 | $1.39 | $781 | 26,151 Direct | -2.10% | Disposed | -5.0% (price as of 2026-10-02) |
| April 28, 2025 | CMTL | M | 1,685 | · | · | 90,274 Direct | -1.83% | Disposed | (price as of 2026-10-02) |
| Sept. 30, 2024 | CMTL | A | 47,838 | · | · | 91,959 Direct | +108.42% | Acquired | (price as of 2026-10-02) |
| Aug. 11, 2024 | CMTL | M | 5,883 | · | · | 26,988 Direct | +27.87% | Acquired | (price as of 2026-10-02) |
| Aug. 11, 2024 | CMTL | F | 1,960 | $3.17 | $6,213 | 25,028 Direct | -7.26% | Disposed | -58.4% (price as of 2026-10-02) |
| Aug. 11, 2024 | CMTL | M | 5,883 | · | · | 44,121 Direct | -11.77% | Disposed | (price as of 2026-10-02) |
| July 31, 2024 | CMTL | A | 18,519 | $3.24 | $60,002 | 27,272 Direct | +211.57% | Acquired | -59.3% (price as of 2026-10-02) |
| July 31, 2024 | CMTL | F | 6,167 | $3.24 | $19,981 | 21,105 Direct | -22.61% | Disposed | -59.3% (price as of 2026-10-02) |
| July 27, 2024 | CMTL | M | 12,900 | · | · | 14,681 Direct | +724.31% | Acquired | (price as of 2026-10-02) |
| July 27, 2024 | CMTL | F | 5,928 | $3.40 | $20,155 | 8,753 Direct | -40.38% | Disposed | -61.2% (price as of 2026-10-02) |
| July 27, 2024 | CMTL | M | 12,900 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| April 28, 2024 | CMTL | M | 1,685 | · | · | 2,685 Direct | +168.50% | Acquired | (price as of 2026-10-02) |
| April 28, 2024 | CMTL | F | 904 | $2.05 | $1,853 | 1,781 Direct | -33.67% | Disposed | -35.6% (price as of 2026-10-02) |
| April 28, 2024 | CMTL | M | 1,685 | · | · | 50,004 Direct | -3.26% | Disposed | (price as of 2026-10-02) |
| Aug. 11, 2023 | CMTL | A | 17,648 | · | · | 51,689 Direct | +51.84% | Acquired | (price as of 2026-10-02) |
| July 27, 2023 | CMTL | M | 587 | · | · | 1,587 Direct | +58.70% | Acquired | (price as of 2026-10-02) |
| July 27, 2023 | CMTL | M | 587 | · | · | 12,900 Direct | -4.35% | Disposed | (price as of 2026-10-02) |
| July 27, 2023 | CMTL | A | 13,487 | · | · | 13,487 Direct | · | Acquired | (price as of 2026-10-02) |
| July 27, 2023 | CMTL | F | 587 | $10.01 | $5,876 | 1,000 Direct | -36.99% | Disposed | -86.8% (price as of 2026-10-02) |
| June 14, 2023 | CMTL | P | 500 | $8.86 | $4,430 | 1,000 Direct | +100.00% | Acquired | -85.1% (price as of 2026-10-02) |
| June 13, 2023 | CMTL | P | 500 | $9.23 | $4,615 | 500 Direct | · | Acquired | -85.7% (price as of 2026-10-02) |
| April 28, 2023 | CMTL | A | 28,986 | · | · | 34,041 Direct | +573.41% | Acquired | (price as of 2026-10-02) |
| April 28, 2023 | CMTL | A | 5,055 | · | · | 5,055 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 17, 2020 | BLD | A | 5,571 | · | · | 5,571 Direct | · | Acquired | |
| May 6, 2019 | BLD | A | 6,780 | · | · | 6,780 Direct | · | Acquired |
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 |
|---|---|---|---|---|---|---|---|
| Sept. 30, 2026 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 15,946 | Disposed |
| Aug. 11, 2026 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 5,883 | Disposed |
| April 28, 2026 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 1,685 | Disposed |
| April 28, 2026 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 28,986 | Disposed |
| Nov. 7, 2025 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 106,908 | Acquired |
| Sept. 30, 2025 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 15,946 | Disposed |
| Aug. 11, 2025 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 5,882 | Disposed |
| April 28, 2025 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 1,685 | Disposed |
| Sept. 30, 2024 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 47,838 | Acquired |
| Aug. 11, 2024 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 5,883 | Disposed |
| July 27, 2024 | CMTL | Share Units | Common Stock Par Value $.10 Per Share | · | · | 12,900 | Disposed |
| April 28, 2024 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 1,685 | Disposed |
| Aug. 11, 2023 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 17,648 | Acquired |
| July 27, 2023 | CMTL | Share Units | Common Stock Par Value $.10 Per Share | · | · | 587 | Disposed |
| July 27, 2023 | CMTL | Share Units | Common Stock Par Value $.10 Per Share | · | · | 13,487 | Acquired |
| April 28, 2023 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 28,986 | Acquired |
| April 28, 2023 | CMTL | Restricted Stock Units | Common Stock Par Value $.10 Per Share | · | · | 5,055 | Acquired |
| Feb. 17, 2020 | BLD | Employee Stock Option (right to buy) | Common Stock | $118.58 | Feb. 17, 2030 | 5,571 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
CIK 1633931
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2020 | $81,242 | · | · | · | $67,637 | · | $782,247 | $1,536,180 |
| 2019 | $295,096 | $150,000 | · | · | $246,566 | · | $78,123 | $1,270,149 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.