Kevin D. Bunker
Insider
First SEC filing: April 3, 2020 · Latest: April 3, 2020
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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 20, 2023 | ZNTL | G | 24,158 | · | · | 834,931 Direct | -2.81% | Disposed | (price as of 2026-10-05) |
| Oct. 4, 2023 | ZNTL | S 10b5-1 | 5,085 | $19.43 | $98,802 | 860,072 Direct | -0.59% | Disposed | -85.7% (price as of 2026-10-05) |
| Oct. 4, 2023 | ZNTL | S 10b5-1 | 983 | $19.91 | $19,572 | 859,089 Direct | -0.11% | Disposed | -86.0% (price as of 2026-10-05) |
| May 26, 2023 | ZNTL | S 10b5-1 | 80,000 | $30.02 | $2,401,600 | 15,000 Indirect | -84.21% | Disposed | -90.7% (price as of 2026-10-05) |
| Feb. 14, 2023 | ZNTL | S 10b5-1 | 6,500 | $19.98 | $129,870 | 865,157 Direct | -0.75% | Disposed | -86.1% (price as of 2026-10-05) |
| Feb. 13, 2023 | ZNTL | S 10b5-1 | 3,807 | $20.42 | $77,739 | 871,657 Direct | -0.43% | Disposed | -86.4% (price as of 2026-10-05) |
| Feb. 1, 2023 | ZNTL | A | 91,354 | · | · | 875,464 Direct | +11.65% | Acquired | (price as of 2026-10-05) |
| Feb. 1, 2023 | ZNTL | A | 132,646 | · | · | 132,646 Direct | · | Acquired | (price as of 2026-10-05) |
| Nov. 9, 2022 | ZNTL | G | 30,000 | · | · | 784,110 Direct | -3.69% | Disposed | (price as of 2026-10-05) |
| Oct. 3, 2022 | ZNTL | A | 50,000 | · | · | 814,110 Direct | +6.54% | Acquired | (price as of 2026-10-05) |
| Oct. 3, 2022 | ZNTL | A | 50,000 | · | · | 50,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Aug. 10, 2022 | ZNTL | S 10b5-1 | 5,000 | $30.00 | $150,000 | 95,000 Indirect | -5.00% | Disposed | -90.7% (price as of 2026-10-05) |
| July 20, 2022 | ZNTL | S 10b5-1 | 5,000 | $30.00 | $150,000 | 100,000 Indirect | -4.76% | Disposed | -90.7% (price as of 2026-10-05) |
| July 14, 2022 | ZNTL | S 10b5-1 | 3,290 | $30.01 | $98,733 | 105,000 Indirect | -3.04% | Disposed | -90.7% (price as of 2026-10-05) |
| July 13, 2022 | ZNTL | S 10b5-1 | 1,710 | $30.02 | $51,334 | 108,290 Indirect | -1.55% | Disposed | -90.7% (price as of 2026-10-05) |
| July 5, 2022 | ZNTL | S 10b5-1 | 25,000 | $30.07 | $751,750 | 110,000 Indirect | -18.52% | Disposed | -90.8% (price as of 2026-10-05) |
| April 11, 2022 | ZNTL | S 10b5-1 | 4,600 | $30.37 | $139,702 | 135,400 Indirect | -3.29% | Disposed | -90.8% (price as of 2026-10-05) |
| April 11, 2022 | ZNTL | S 10b5-1 | 300 | $32.40 | $9,720 | 135,100 Indirect | -0.22% | Disposed | -91.4% (price as of 2026-10-05) |
| April 11, 2022 | ZNTL | S 10b5-1 | 100 | $33.16 | $3,316 | 135,000 Indirect | -0.07% | Disposed | -91.6% (price as of 2026-10-05) |
| March 21, 2022 | ZNTL | S 10b5-1 | 5,556 | $48.72 | $270,688 | 144,444 Indirect | -3.70% | Disposed | -94.3% (price as of 2026-10-05) |
| March 21, 2022 | ZNTL | S 10b5-1 | 4,444 | $49.50 | $219,978 | 140,000 Indirect | -3.08% | Disposed | -94.4% (price as of 2026-10-05) |
| March 10, 2022 | ZNTL | S 10b5-1 | 4,000 | $46.23 | $184,920 | 156,000 Indirect | -2.50% | Disposed | -94.0% (price as of 2026-10-05) |
| March 10, 2022 | ZNTL | S 10b5-1 | 4,301 | $47.18 | $202,921 | 151,699 Indirect | -2.76% | Disposed | -94.1% (price as of 2026-10-05) |
| March 10, 2022 | ZNTL | S 10b5-1 | 1,699 | $47.99 | $81,535 | 150,000 Indirect | -1.12% | Disposed | -94.2% (price as of 2026-10-05) |
| Feb. 22, 2022 | ZNTL | S 10b5-1 | 800 | $47.08 | $37,664 | 169,200 Indirect | -0.47% | Disposed | -94.1% (price as of 2026-10-05) |
| Feb. 22, 2022 | ZNTL | S 10b5-1 | 6,343 | $48.95 | $310,490 | 162,857 Indirect | -3.75% | Disposed | -94.3% (price as of 2026-10-05) |
| Feb. 22, 2022 | ZNTL | S 10b5-1 | 2,451 | $49.92 | $122,354 | 160,406 Indirect | -1.51% | Disposed | -94.4% (price as of 2026-10-05) |
| Feb. 22, 2022 | ZNTL | S 10b5-1 | 406 | $50.39 | $20,458 | 160,000 Indirect | -0.25% | Disposed | -94.5% (price as of 2026-10-05) |
| Feb. 14, 2022 | ZNTL | S 10b5-1 | 1,622 | $50.16 | $81,360 | 767,176 Direct | -0.21% | Disposed | -94.5% (price as of 2026-10-05) |
| Feb. 14, 2022 | ZNTL | S 10b5-1 | 203 | $50.75 | $10,302 | 766,973 Direct | -0.03% | Disposed | -94.5% (price as of 2026-10-05) |
| Feb. 14, 2022 | ZNTL | S 10b5-1 | 2,863 | $50.29 | $143,980 | 764,110 Direct | -0.37% | Disposed | -94.5% (price as of 2026-10-05) |
| Feb. 10, 2022 | ZNTL | A | 22,481 | · | · | 768,798 Direct | +3.01% | Acquired | (price as of 2026-10-05) |
| Feb. 10, 2022 | ZNTL | S 10b5-1 | 2,366 | $52.15 | $123,387 | 177,634 Indirect | -1.31% | Disposed | -94.7% (price as of 2026-10-05) |
| Feb. 10, 2022 | ZNTL | S 10b5-1 | 3,074 | $53.19 | $163,506 | 174,560 Indirect | -1.73% | Disposed | -94.8% (price as of 2026-10-05) |
| Feb. 10, 2022 | ZNTL | S 10b5-1 | 3,321 | $54.20 | $179,998 | 171,239 Indirect | -1.90% | Disposed | -94.9% (price as of 2026-10-05) |
| Feb. 10, 2022 | ZNTL | S 10b5-1 | 1,239 | $54.96 | $68,095 | 170,000 Indirect | -0.72% | Disposed | -94.9% (price as of 2026-10-05) |
| Feb. 10, 2022 | ZNTL | A | 52,745 | · | · | 52,745 Direct | · | Acquired | (price as of 2026-10-05) |
| Jan. 20, 2022 | ZNTL | S 10b5-1 | 2,753 | $59.17 | $162,895 | 187,247 Indirect | -1.45% | Disposed | -95.3% (price as of 2026-10-05) |
| Jan. 20, 2022 | ZNTL | S 10b5-1 | 6,537 | $60.20 | $393,527 | 180,710 Indirect | -3.49% | Disposed | -95.4% (price as of 2026-10-05) |
| Jan. 20, 2022 | ZNTL | S 10b5-1 | 710 | $61.29 | $43,516 | 180,000 Indirect | -0.39% | Disposed | -95.5% (price as of 2026-10-05) |
| Jan. 10, 2022 | ZNTL | S 10b5-1 | 3,146 | $67.24 | $211,537 | 196,854 Indirect | -1.57% | Disposed | -95.9% (price as of 2026-10-05) |
| Jan. 10, 2022 | ZNTL | S 10b5-1 | 2,807 | $68.05 | $191,016 | 194,047 Indirect | -1.43% | Disposed | -95.9% (price as of 2026-10-05) |
| Jan. 10, 2022 | ZNTL | S 10b5-1 | 1,835 | $69.03 | $126,670 | 192,212 Indirect | -0.95% | Disposed | -96.0% (price as of 2026-10-05) |
| Jan. 10, 2022 | ZNTL | S 10b5-1 | 2,212 | $70.02 | $154,884 | 190,000 Indirect | -1.15% | Disposed | -96.0% (price as of 2026-10-05) |
| Dec. 30, 2021 | ZNTL | G | 8,750 | · | · | 746,317 Direct | -1.16% | Disposed | (price as of 2026-10-05) |
| Dec. 20, 2021 | ZNTL | S 10b5-1 | 2,161 | $77.45 | $167,369 | 207,839 Indirect | -1.03% | Disposed | -96.4% (price as of 2026-10-05) |
| Dec. 20, 2021 | ZNTL | S 10b5-1 | 1,879 | $78.52 | $147,539 | 205,960 Indirect | -0.90% | Disposed | -96.5% (price as of 2026-10-05) |
| Dec. 20, 2021 | ZNTL | S 10b5-1 | 3,889 | $79.78 | $310,264 | 202,071 Indirect | -1.89% | Disposed | -96.5% (price as of 2026-10-05) |
| Dec. 20, 2021 | ZNTL | S 10b5-1 | 2,071 | $80.76 | $167,254 | 200,000 Indirect | -1.02% | Disposed | -96.6% (price as of 2026-10-05) |
| Dec. 10, 2021 | ZNTL | S 10b5-1 | 434 | $70.29 | $30,506 | 219,566 Indirect | -0.20% | Disposed | -96.0% (price as of 2026-10-05) |
| Dec. 10, 2021 | ZNTL | S 10b5-1 | 4,049 | $71.17 | $288,167 | 215,517 Indirect | -1.84% | Disposed | -96.1% (price as of 2026-10-05) |
| Dec. 10, 2021 | ZNTL | S 10b5-1 | 5,117 | $72.10 | $368,936 | 210,400 Indirect | -2.37% | Disposed | -96.1% (price as of 2026-10-05) |
| Dec. 10, 2021 | ZNTL | S 10b5-1 | 400 | $73.75 | $29,500 | 210,000 Indirect | -0.19% | Disposed | -96.2% (price as of 2026-10-05) |
| Nov. 22, 2021 | ZNTL | S 10b5-1 | 10,000 | $75.99 | $759,900 | 220,000 Indirect | -4.35% | Disposed | -96.3% (price as of 2026-10-05) |
| Nov. 10, 2021 | ZNTL | S 10b5-1 | 10,000 | $78.15 | $781,500 | 230,000 Indirect | -4.17% | Disposed | -96.4% (price as of 2026-10-05) |
| Nov. 9, 2021 | ZNTL | G | 240,000 | · | · | 755,067 Direct | -24.12% | Disposed | (price as of 2026-10-05) |
| Nov. 9, 2021 | ZNTL | G | 240,000 | · | · | 240,000 Indirect | · | Acquired | (price as of 2026-10-05) |
| Oct. 1, 2021 | ZNTL | S 10b5-1 | 1,416 | $64.73 | $91,658 | 7,004 Indirect | -16.82% | Disposed | -95.7% (price as of 2026-10-05) |
| Oct. 1, 2021 | ZNTL | S 10b5-1 | 3,121 | $65.80 | $205,362 | 3,883 Indirect | -44.56% | Disposed | -95.8% (price as of 2026-10-05) |
| Oct. 1, 2021 | ZNTL | S 10b5-1 | 3,679 | $66.89 | $246,088 | 204 Indirect | -94.75% | Disposed | -95.8% (price as of 2026-10-05) |
| Oct. 1, 2021 | ZNTL | S 10b5-1 | 204 | $67.44 | $13,758 | 0 Indirect | -100.00% | Disposed | -95.9% (price as of 2026-10-05) |
| Sept. 24, 2021 | ZNTL | G | 350 | · | · | 995,067 Direct | -0.04% | Disposed | (price as of 2026-10-05) |
| Sept. 24, 2021 | ZNTL | G | 350 | · | · | 350 Indirect | · | Acquired | (price as of 2026-10-05) |
| Sept. 1, 2021 | ZNTL | S 10b5-1 | 3,822 | $67.08 | $256,380 | 13,018 Indirect | -22.70% | Disposed | -95.9% (price as of 2026-10-05) |
| Sept. 1, 2021 | ZNTL | S 10b5-1 | 4,198 | $67.77 | $284,498 | 8,820 Indirect | -32.25% | Disposed | -95.9% (price as of 2026-10-05) |
| Sept. 1, 2021 | ZNTL | S 10b5-1 | 400 | $68.58 | $27,432 | 8,420 Indirect | -4.54% | Disposed | -95.9% (price as of 2026-10-05) |
| Aug. 2, 2021 | ZNTL | S 10b5-1 | 3,139 | $49.92 | $156,699 | 22,121 Indirect | -12.43% | Disposed | -94.4% (price as of 2026-10-05) |
| Aug. 2, 2021 | ZNTL | S 10b5-1 | 3,728 | $51.35 | $191,433 | 18,393 Indirect | -16.85% | Disposed | -94.6% (price as of 2026-10-05) |
| Aug. 2, 2021 | ZNTL | S 10b5-1 | 1,246 | $52.41 | $65,303 | 17,147 Indirect | -6.77% | Disposed | -94.7% (price as of 2026-10-05) |
| Aug. 2, 2021 | ZNTL | S 10b5-1 | 307 | $53.32 | $16,369 | 16,840 Indirect | -1.79% | Disposed | -94.8% (price as of 2026-10-05) |
| July 7, 2021 | ZNTL | S 10b5-1 | 1,166 | $46.08 | $53,729 | 1,012,136 Direct | -0.12% | Disposed | -94.0% (price as of 2026-10-05) |
| July 7, 2021 | ZNTL | S 10b5-1 | 1,842 | $47.28 | $87,090 | 1,010,294 Direct | -0.18% | Disposed | -94.1% (price as of 2026-10-05) |
| July 7, 2021 | ZNTL | S 10b5-1 | 1,506 | $47.76 | $71,927 | 1,008,788 Direct | -0.15% | Disposed | -94.2% (price as of 2026-10-05) |
| July 6, 2021 | ZNTL | S 10b5-1 | 4,906 | $46.78 | $229,503 | 1,014,747 Direct | -0.48% | Disposed | -94.1% (price as of 2026-10-05) |
| July 6, 2021 | ZNTL | S 10b5-1 | 1,349 | $47.17 | $63,632 | 1,013,398 Direct | -0.13% | Disposed | -94.1% (price as of 2026-10-05) |
| July 6, 2021 | ZNTL | S 10b5-1 | 96 | $48.83 | $4,688 | 1,013,302 Direct | -0.01% | Disposed | -94.3% (price as of 2026-10-05) |
| July 6, 2021 | ZNTL | S 10b5-1 | 12,947 | $46.84 | $606,437 | 995,841 Direct | -1.28% | Disposed | -94.1% (price as of 2026-10-05) |
| July 6, 2021 | ZNTL | S 10b5-1 | 800 | $47.33 | $37,864 | 995,041 Direct | -0.08% | Disposed | -94.1% (price as of 2026-10-05) |
| July 6, 2021 | ZNTL | S 10b5-1 | 200 | $49.20 | $9,840 | 994,841 Direct | -0.02% | Disposed | -94.3% (price as of 2026-10-05) |
| July 1, 2021 | ZNTL | S 10b5-1 | 2,400 | $50.18 | $120,432 | 31,280 Indirect | -7.13% | Disposed | -94.5% (price as of 2026-10-05) |
| July 1, 2021 | ZNTL | S 10b5-1 | 4,127 | $51.30 | $211,715 | 27,153 Indirect | -13.19% | Disposed | -94.6% (price as of 2026-10-05) |
| July 1, 2021 | ZNTL | S 10b5-1 | 1,473 | $52.18 | $76,861 | 25,680 Indirect | -5.42% | Disposed | -94.7% (price as of 2026-10-05) |
| July 1, 2021 | ZNTL | S 10b5-1 | 420 | $53.18 | $22,336 | 25,260 Indirect | -1.64% | Disposed | -94.8% (price as of 2026-10-05) |
| June 1, 2021 | ZNTL | S 10b5-1 | 7,571 | $54.00 | $408,834 | 34,529 Indirect | -17.98% | Disposed | -94.9% (price as of 2026-10-05) |
| June 1, 2021 | ZNTL | S 10b5-1 | 849 | $54.86 | $46,576 | 33,680 Indirect | -2.46% | Disposed | -94.9% (price as of 2026-10-05) |
| May 3, 2021 | ZNTL | S 10b5-1 | 1,100 | $57.12 | $62,832 | 49,420 Indirect | -2.18% | Disposed | -95.1% (price as of 2026-10-05) |
| May 3, 2021 | ZNTL | S 10b5-1 | 1,630 | $58.09 | $94,687 | 47,790 Indirect | -3.30% | Disposed | -95.2% (price as of 2026-10-05) |
| May 3, 2021 | ZNTL | S 10b5-1 | 4,567 | $59.91 | $273,609 | 43,223 Indirect | -9.56% | Disposed | -95.4% (price as of 2026-10-05) |
| May 3, 2021 | ZNTL | S 10b5-1 | 1,123 | $60.23 | $67,638 | 42,100 Indirect | -2.60% | Disposed | -95.4% (price as of 2026-10-05) |
| April 13, 2021 | ZNTL | S 10b5-1 | 3,810 | $45.00 | $171,450 | 50,520 Indirect | -7.01% | Disposed | -93.8% (price as of 2026-10-05) |
| April 6, 2021 | ZNTL | S 10b5-1 | 275 | $43.26 | $11,896 | 1,019,653 Direct | -0.03% | Disposed | -93.6% (price as of 2026-10-05) |
| April 5, 2021 | ZNTL | S 10b5-1 | 9,024 | $43.37 | $391,371 | 1,035,440 Direct | -0.86% | Disposed | -93.6% (price as of 2026-10-05) |
| April 5, 2021 | ZNTL | S 10b5-1 | 97 | $44.21 | $4,288 | 1,035,343 Direct | -0.01% | Disposed | -93.7% (price as of 2026-10-05) |
| April 5, 2021 | ZNTL | S 10b5-1 | 54 | $45.06 | $2,433 | 1,035,289 Direct | -0.01% | Disposed | -93.8% (price as of 2026-10-05) |
| April 5, 2021 | ZNTL | S 10b5-1 | 15,361 | $43.36 | $666,053 | 1,019,928 Direct | -1.48% | Disposed | -93.6% (price as of 2026-10-05) |
| April 5, 2021 | ZNTL | S 10b5-1 | 400 | $45.07 | $18,028 | 54,330 Indirect | -0.73% | Disposed | -93.8% (price as of 2026-10-05) |
| April 1, 2021 | ZNTL | S 10b5-1 | 2,436 | $43.09 | $104,967 | 56,504 Indirect | -4.13% | Disposed | -93.5% (price as of 2026-10-05) |
| April 1, 2021 | ZNTL | S 10b5-1 | 1,674 | $43.88 | $73,455 | 54,830 Indirect | -2.96% | Disposed | -93.7% (price as of 2026-10-05) |
| April 1, 2021 | ZNTL | S 10b5-1 | 100 | $44.90 | $4,490 | 54,730 Indirect | -0.18% | Disposed | -93.8% (price as of 2026-10-05) |
| March 10, 2021 | ZNTL | S 10b5-1 | 4,720 | $45.24 | $213,533 | 58,940 Indirect | -7.41% | Disposed | -93.9% (price as of 2026-10-05) |
Showing latest 100 of 133 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 |
|---|---|---|---|---|---|---|---|
| Feb. 1, 2023 | ZNTL | Stock Option (Right to Buy) | Common Stock | $23.65 | Jan. 31, 2033 | 132,646 | Acquired |
| Oct. 3, 2022 | ZNTL | Stock Option (Right to Buy) | Common Stock | $22.21 | Oct. 2, 2032 | 50,000 | Acquired |
| Feb. 10, 2022 | ZNTL | Stock Option (Right to Buy) | Common Stock | $52.61 | Feb. 9, 2032 | 52,745 | Acquired |
| Feb. 11, 2021 | ZNTL | Stock Option (Right to Buy) | Common Stock | $38.76 | Feb. 10, 2031 | 56,250 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 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 |
|---|---|---|---|---|---|---|---|---|
| 2023 | $580,125 | · | $1,987,555 | $1,661,464 | · | · | $886,811 | $5,115,956 |
| 2022 | $530,602 | · | $2,293,225 | $2,606,507 | $276,250 | · | $15,477 | $5,722,062 |
| 2021 | $446,913 | · | $726,750 | $1,431,242 | $187,318 | · | $14,610 | $2,806,833 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.