Daniel R Herzog
Insider
First SEC filing: Jan. 5, 2026 · Latest: Jan. 5, 2026
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 30, 2026 | CLFD | A | 752 | $24.78 | $18,635 | 85,834 Direct | +0.88% | Acquired | 36.2% (price as of 2026-10-06) |
| Dec. 31, 2025 | CLFD | A | 88 | $24.78 | $2,181 | 85,082 Direct | +0.10% | Acquired | 36.2% (price as of 2026-10-06) |
| Nov. 28, 2025 | CLFD | A | 11,495 | · | · | 84,994 Direct | +15.64% | Acquired | (price as of 2026-10-06) |
| Nov. 20, 2025 | CLFD | F | 824 | $28.22 | $23,253 | 73,499 Direct | -1.11% | Disposed | 19.6% (price as of 2026-10-06) |
| Nov. 20, 2025 | CLFD | A | 5,394 | · | · | 74,323 Direct | +7.83% | Acquired | (price as of 2026-10-06) |
| Nov. 20, 2025 | CLFD | A | 2,696 | · | · | 68,929 Direct | +4.07% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2025 | CLFD | F | 825 | $30.72 | $25,344 | 66,233 Direct | -1.23% | Disposed | 9.8% (price as of 2026-10-06) |
| Nov. 16, 2025 | CLFD | F | 973 | $30.72 | $29,891 | 67,058 Direct | -1.43% | Disposed | 9.8% (price as of 2026-10-06) |
| Nov. 16, 2025 | CLFD | F | 510 | $30.72 | $15,667 | 68,031 Direct | -0.74% | Disposed | 9.8% (price as of 2026-10-06) |
| Nov. 16, 2025 | CLFD | F | 825 | $30.72 | $25,344 | 66,233 Direct | +1.26% | Acquired | 9.8% (price as of 2026-10-06) |
| Nov. 16, 2025 | CLFD | F | 973 | $30.72 | $29,891 | 67,058 Direct | +1.47% | Acquired | 9.8% (price as of 2026-10-06) |
| Nov. 16, 2025 | CLFD | F | 510 | $30.72 | $15,667 | 68,031 Direct | -0.74% | Disposed | 9.8% (price as of 2026-10-06) |
| Sept. 12, 2025 | CLFD | M | 12,000 | · | · | 5,837 Direct | · | Acquired | (price as of 2026-10-06) |
| Sept. 12, 2025 | CLFD | M | 11,795 | · | · | 17,632 Direct | +202.07% | Acquired | (price as of 2026-10-06) |
| Sept. 12, 2025 | CLFD | F | 6,785 | $33.25 | $225,601 | 68,541 Direct | -9.01% | Disposed | 1.5% (price as of 2026-10-06) |
| Sept. 12, 2025 | CLFD | M | 12,000 | $12.43 | $149,160 | 75,326 Direct | +18.95% | Acquired | 171.4% (price as of 2026-10-06) |
| Sept. 12, 2025 | CLFD | F | 9,453 | $33.25 | $314,312 | 63,326 Direct | -12.99% | Disposed | 1.5% (price as of 2026-10-06) |
| Sept. 12, 2025 | CLFD | M | 11,795 | $23.74 | $280,013 | 72,779 Direct | +19.34% | Acquired | 42.1% (price as of 2026-10-06) |
| June 30, 2025 | CLFD | A | 683 | $26.35 | $17,997 | 60,984 Direct | +1.13% | Acquired | 28.0% (price as of 2026-10-06) |
| Dec. 31, 2024 | CLFD | A | 137 | $26.35 | $3,610 | 60,301 Direct | +0.23% | Acquired | 28.0% (price as of 2026-10-06) |
| Nov. 26, 2024 | CLFD | A | 8,090 | · | · | 60,164 Direct | +15.54% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2024 | CLFD | F | 973 | $28.26 | $27,497 | 52,074 Direct | -1.83% | Disposed | 19.4% (price as of 2026-10-06) |
| Nov. 16, 2024 | CLFD | F | 510 | $28.26 | $14,413 | 53,047 Direct | -0.95% | Disposed | 19.4% (price as of 2026-10-06) |
| Nov. 16, 2024 | CLFD | F | 114 | $28.26 | $3,222 | 53,557 Direct | -0.21% | Disposed | 19.4% (price as of 2026-10-06) |
| Aug. 21, 2024 | CLFD | F | 458 | $37.58 | $17,212 | 53,671 Direct | -0.85% | Disposed | -10.2% (price as of 2026-10-06) |
| June 30, 2024 | CLFD | A | 688 | $24.72 | $17,007 | 54,129 Direct | +1.29% | Acquired | 36.5% (price as of 2026-10-06) |
| Dec. 31, 2023 | CLFD | A | 206 | $24.72 | $5,092 | 53,441 Direct | +0.39% | Acquired | 36.5% (price as of 2026-10-06) |
| Nov. 16, 2023 | CLFD | A | 9,549 | · | · | 53,235 Direct | +21.86% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2023 | CLFD | F | 509 | $26.18 | $13,326 | 43,686 Direct | -1.15% | Disposed | 28.9% (price as of 2026-10-06) |
| Nov. 16, 2023 | CLFD | F | 114 | $26.18 | $2,985 | 44,195 Direct | -0.26% | Disposed | 28.9% (price as of 2026-10-06) |
| Nov. 16, 2023 | CLFD | F | 206 | $26.18 | $5,393 | 44,309 Direct | -0.46% | Disposed | 28.9% (price as of 2026-10-06) |
| Aug. 21, 2023 | CLFD | F | 459 | $37.50 | $17,212 | 44,515 Direct | -1.02% | Disposed | -10.0% (price as of 2026-10-06) |
| June 30, 2023 | CLFD | A | 140 | $40.25 | $5,635 | 45,072 Direct | +0.31% | Acquired | -16.2% (price as of 2026-10-06) |
| Feb. 24, 2023 | CLFD | A | 5,000 | · | · | 44,932 Direct | +12.52% | Acquired | (price as of 2026-10-06) |
| Dec. 31, 2022 | CLFD | A | 232 | $53.52 | $12,417 | 39,932 Direct | +0.58% | Acquired | -37.0% (price as of 2026-10-06) |
| Dec. 14, 2022 | CLFD | F | 424 | $104.36 | $44,249 | 39,700 Direct | -1.06% | Disposed | -67.7% (price as of 2026-10-06) |
| Dec. 14, 2022 | CLFD | A | 1,386 | · | · | 40,124 Direct | +3.58% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2022 | CLFD | F | 184 | $92.48 | $17,016 | 38,738 Direct | -0.47% | Disposed | -63.5% (price as of 2026-10-06) |
| Nov. 16, 2022 | CLFD | F | 331 | $92.48 | $30,611 | 38,922 Direct | -0.84% | Disposed | -63.5% (price as of 2026-10-06) |
| Aug. 21, 2022 | CLFD | F | 738 | $123.45 | $91,106 | 39,253 Direct | -1.85% | Disposed | -72.7% (price as of 2026-10-06) |
| Aug. 9, 2022 | CLFD | S | 4,534 | $113.56 | $514,881 | 40,072 Direct | -10.16% | Disposed | -70.3% (price as of 2026-10-06) |
| Aug. 8, 2022 | CLFD | M | 10,000 | · | · | 29,632 Direct | -25.23% | Disposed | (price as of 2026-10-06) |
| Aug. 8, 2022 | CLFD | F | 5,466 | $112.38 | $614,269 | 44,606 Direct | -10.92% | Disposed | -70.0% (price as of 2026-10-06) |
| Aug. 8, 2022 | CLFD | M | 10,000 | $12.17 | $121,700 | 50,072 Direct | +24.96% | Acquired | 177.2% (price as of 2026-10-06) |
| June 30, 2022 | CLFD | A | 47 | $52.66 | $2,475 | 40,072 Direct | +0.12% | Acquired | -35.9% (price as of 2026-10-06) |
| Dec. 31, 2021 | CLFD | A | 81 | $32.43 | $2,627 | 40,025 Direct | +0.20% | Acquired | 4.0% (price as of 2026-10-06) |
| Dec. 31, 2021 | CLFD | A | 82 | $31.83 | $2,610 | 40,026 Direct | +0.21% | Acquired | 6.0% (price as of 2026-10-06) |
| Nov. 16, 2021 | CLFD | A | 5,837 | · | · | 39,632 Direct | +17.27% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2021 | CLFD | A | 1,121 | · | · | 39,944 Direct | +2.89% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2021 | CLFD | F | 206 | $66.48 | $13,695 | 38,823 Direct | -0.53% | Disposed | -49.2% (price as of 2026-10-06) |
| Aug. 21, 2021 | CLFD | F | 727 | $42.78 | $31,101 | 39,029 Direct | -1.83% | Disposed | -21.1% (price as of 2026-10-06) |
| June 30, 2021 | CLFD | A | 114 | $21.01 | $2,395 | 39,850 Direct | +0.29% | Acquired | 60.6% (price as of 2026-10-06) |
| Dec. 31, 2020 | CLFD | A | 190 | $11.93 | $2,267 | 39,736 Direct | +0.48% | Acquired | 182.8% (price as of 2026-10-06) |
| Nov. 27, 2020 | CLFD | M | 14,000 | · | · | 33,795 Direct | -29.29% | Disposed | (price as of 2026-10-06) |
| Nov. 27, 2020 | CLFD | F | 9,995 | $23.33 | $233,183 | 39,546 Direct | -20.18% | Disposed | 44.6% (price as of 2026-10-06) |
| Nov. 27, 2020 | CLFD | M | 14,000 | $12.17 | $170,380 | 49,541 Direct | +39.39% | Acquired | 177.2% (price as of 2026-10-06) |
| Nov. 27, 2020 | CLFD | S | 2,000 | $23.08 | $46,160 | 35,541 Direct | -5.33% | Disposed | 46.2% (price as of 2026-10-06) |
| Nov. 25, 2020 | CLFD | S | 5,000 | $23.51 | $117,550 | 37,541 Direct | -11.75% | Disposed | 43.5% (price as of 2026-10-06) |
| Nov. 16, 2020 | CLFD | A | 2,022 | · | · | 42,541 Direct | +4.99% | Acquired | (price as of 2026-10-06) |
| Nov. 16, 2020 | CLFD | A | 11,795 | · | · | 47,795 Direct | +32.76% | Acquired | (price as of 2026-10-06) |
| Aug. 21, 2020 | CLFD | F | 724 | $17.80 | $12,887 | 40,519 Direct | -1.76% | Disposed | 89.6% (price as of 2026-10-06) |
| June 30, 2020 | CLFD | A | 205 | $11.85 | $2,429 | 41,353 Direct | +0.50% | Acquired | 184.7% (price as of 2026-10-06) |
| Dec. 31, 2019 | CLFD | A | 277 | $11.23 | $3,111 | 41,148 Direct | +0.68% | Acquired | 200.4% (price as of 2026-10-06) |
| Nov. 13, 2019 | CLFD | A | 12,000 | · | · | 36,000 Direct | +50.00% | Acquired | (price as of 2026-10-06) |
| Aug. 21, 2019 | CLFD | F | 728 | $11.55 | $8,408 | 41,002 Direct | -1.74% | Disposed | 192.1% (price as of 2026-10-06) |
| June 30, 2019 | CLFD | A | 522 | $8.43 | $4,400 | 41,730 Direct | +1.27% | Acquired | 300.2% (price as of 2026-10-06) |
| May 26, 2019 | CLFD | F | 2,228 | $14.19 | $31,615 | 41,208 Direct | -5.13% | Disposed | 137.8% (price as of 2026-10-06) |
| Dec. 31, 2018 | CLFD | A | 119 | $8.43 | $1,003 | 43,436 Direct | +0.27% | Acquired | 300.2% (price as of 2026-10-06) |
| Nov. 14, 2018 | CLFD | A | 24,000 | · | · | 24,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Aug. 21, 2018 | CLFD | F | 729 | $13.03 | $9,499 | 43,317 Direct | -1.66% | Disposed | 158.9% (price as of 2026-10-06) |
| June 30, 2018 | CLFD | A | 106 | $9.39 | $995 | 44,209 Direct | +0.24% | Acquired | 259.3% (price as of 2026-10-06) |
| May 26, 2018 | CLFD | F | 2,175 | $11.10 | $24,142 | 44,103 Direct | -4.70% | Disposed | 204.0% (price as of 2026-10-06) |
| Dec. 31, 2017 | CLFD | A | 97 | $10.41 | $1,010 | 46,278 Direct | +0.21% | Acquired | 224.1% (price as of 2026-10-06) |
| Aug. 23, 2017 | CLFD | F | 3,108 | $11.58 | $35,991 | 46,181 Direct | -6.31% | Disposed | 191.4% (price as of 2026-10-06) |
| Aug. 21, 2017 | CLFD | F | 777 | $13.60 | $10,567 | 50,356 Direct | -1.52% | Disposed | 148.1% (price as of 2026-10-06) |
| June 30, 2017 | CLFD | A | 89 | $11.22 | $999 | 50,867 Direct | +0.18% | Acquired | 200.7% (price as of 2026-10-06) |
| May 26, 2017 | CLFD | F | 2,061 | $13.88 | $28,607 | 50,778 Direct | -3.90% | Disposed | 143.1% (price as of 2026-10-06) |
| Dec. 31, 2016 | CLFD | A | 69 | $15.21 | $1,049 | 70,362 Direct | +0.10% | Acquired | 121.8% (price as of 2026-10-06) |
| Nov. 22, 2016 | CLFD | S | 10,608 | $18.88 | $200,279 | 70,293 Direct | -13.11% | Disposed | 78.7% (price as of 2026-10-06) |
| Nov. 21, 2016 | CLFD | S | 14,392 | $19.61 | $282,227 | 80,901 Direct | -15.10% | Disposed | 72.1% (price as of 2026-10-06) |
| Nov. 18, 2016 | CLFD | M | 10,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Nov. 18, 2016 | CLFD | F | 1,717 | $19.21 | $32,984 | 95,293 Direct | -1.77% | Disposed | 75.6% (price as of 2026-10-06) |
| Nov. 18, 2016 | CLFD | M | 10,000 | $3.30 | $33,000 | 97,010 Direct | +11.49% | Acquired | 922.4% (price as of 2026-10-06) |
| Aug. 25, 2016 | CLFD | M | 20,000 | · | · | 10,000 Direct | -66.67% | Disposed | (price as of 2026-10-06) |
| Aug. 25, 2016 | CLFD | F | 7,142 | $17.81 | $127,199 | 87,010 Direct | -7.59% | Disposed | 89.4% (price as of 2026-10-06) |
| Aug. 25, 2016 | CLFD | M | 20,000 | $6.36 | $127,200 | 94,152 Direct | +26.97% | Acquired | 430.5% (price as of 2026-10-06) |
| Aug. 23, 2016 | CLFD | F | 1,975 | $18.01 | $35,570 | 74,152 Direct | -2.59% | Disposed | 87.3% (price as of 2026-10-06) |
| Aug. 21, 2016 | CLFD | F | 503 | $18.07 | $9,089 | 76,127 Direct | -0.66% | Disposed | 86.7% (price as of 2026-10-06) |
| June 30, 2016 | CLFD | A | 154 | $11.40 | $1,756 | 76,630 Direct | +0.20% | Acquired | 196.0% (price as of 2026-10-06) |
| May 26, 2016 | CLFD | A | 17,094 | · | · | 76,476 Direct | +28.79% | Acquired | (price as of 2026-10-06) |
| Feb. 29, 2016 | CLFD | S | 4,000 | $14.69 | $58,760 | 59,382 Direct | -6.31% | Disposed | 129.7% (price as of 2026-10-06) |
| Dec. 31, 2015 | CLFD | A | 172 | $11.40 | $1,961 | 63,382 Direct | +0.27% | Acquired | 196.0% (price as of 2026-10-06) |
| Aug. 23, 2015 | CLFD | F | 1,974 | $16.89 | $33,341 | 63,210 Direct | -3.03% | Disposed | 99.8% (price as of 2026-10-06) |
| Aug. 21, 2015 | CLFD | F | 504 | $17.03 | $8,583 | 65,184 Direct | -0.77% | Disposed | 98.1% (price as of 2026-10-06) |
| June 30, 2015 | CLFD | A | 168 | $10.46 | $1,757 | 65,688 Direct | +0.26% | Acquired | 222.6% (price as of 2026-10-06) |
| Feb. 18, 2015 | CLFD | M | 15,000 | · | · | 30,000 Direct | -33.33% | Disposed | (price as of 2026-10-06) |
| Feb. 18, 2015 | CLFD | M | 5,000 | · | · | 45,000 Direct | -10.00% | Disposed | (price as of 2026-10-06) |
| Feb. 18, 2015 | CLFD | F | 3,713 | $13.33 | $49,494 | 65,520 Direct | -5.36% | Disposed | 153.1% (price as of 2026-10-06) |
| Feb. 18, 2015 | CLFD | M | 15,000 | $3.30 | $49,500 | 69,233 Direct | +27.66% | Acquired | 922.4% (price as of 2026-10-06) |
| Feb. 18, 2015 | CLFD | M | 5,000 | $2.58 | $12,900 | 54,233 Direct | +10.16% | Acquired | 1207.8% (price as of 2026-10-06) |
Showing latest 100 of 120 transactions
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. 12, 2025 | CLFD | Employee Stock Option (Right to buy) | Common Stock | $12.43 | Nov. 13, 2025 | 12,000 | Acquired |
| Sept. 12, 2025 | CLFD | Employee Stock Option (Right to buy) | Common Stock | $23.74 | Nov. 16, 2025 | 11,795 | Acquired |
| Aug. 8, 2022 | CLFD | Employee Stock Option (Right to buy) | Common Stock | $12.17 | Nov. 14, 2022 | 10,000 | Disposed |
| Nov. 16, 2021 | CLFD | Option to Purchase Common Stock | Common Stock | $66.48 | Nov. 16, 2026 | 5,837 | Acquired |
| Nov. 27, 2020 | CLFD | Employee Stock Option (Right to Buy) | Common Stock | $12.17 | Nov. 14, 2022 | 14,000 | Disposed |
| Nov. 16, 2020 | CLFD | Option to Purchase Common Stock | Common Stock | $23.74 | Nov. 16, 2025 | 11,795 | Acquired |
| Nov. 13, 2019 | CLFD | Option to purchase common stock | Common Stock | $12.43 | Nov. 13, 2025 | 12,000 | Acquired |
| Nov. 14, 2018 | CLFD | Option to Purchase Common Stock | Common Stock | $12.17 | Nov. 14, 2022 | 24,000 | Acquired |
| Nov. 18, 2016 | CLFD | Employee Stock Option (Right to Buy) | Common Stock | $3.30 | Nov. 20, 2016 | 10,000 | Disposed |
| Aug. 25, 2016 | CLFD | Employee Stock Option (Right to Buy) | Common Stock | $6.36 | Aug. 25, 2016 | 20,000 | Disposed |
| Feb. 18, 2015 | CLFD | Employee Stock Option (Right to Buy) | Common Stock | $3.30 | Nov. 20, 2016 | 15,000 | Disposed |
| Feb. 18, 2015 | CLFD | Employee Stock Option (Right to Buy) | Common Stock | $2.58 | Aug. 19, 2020 | 5,000 | Disposed |
| Aug. 25, 2011 | CLFD | Option to Purchase Common Stock | Common Stock | $6.36 | Aug. 25, 2016 | 20,000 | Acquired |
| Oct. 30, 2003 | CLFD | Incentive Stock Options | Common Stock | $2.55 | Oct. 30, 2009 | 20,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2025 | $360,400 | · | $499,962 | · | $103,036 | · | $17,182 | $980,580 |
| 2024 | $340,000 | $112,200 | $499,986 | · | · | · | $14,816 | $967,002 |
| 2023 | $340,000 | · | $307,800 | · | · | · | $18,592 | $666,392 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.