Vivek Shah
First SEC filing: Jan. 2, 2018 · Latest: Jan. 14, 2021
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| March 11, 2026 | ZD | A | 122,790 | · | · | 122,790 Direct | · | Acquired | (price as of 2026-10-02) |
| March 6, 2026 | ZD | M | 23,674 | · | · | 23,675 Direct | +2367400.00% | Acquired | (price as of 2026-10-02) |
| March 6, 2026 | ZD | F | 12,085 | $42.32 | $511,437 | 360,282 Indirect | -3.25% | Disposed | 30.4% (price as of 2026-10-02) |
| March 6, 2026 | ZD | M | 23,674 | · | · | 372,367 Indirect | +6.79% | Acquired | (price as of 2026-10-02) |
| March 5, 2026 | ZD | M | 43,664 | · | · | 87,329 Direct | +100.00% | Acquired | (price as of 2026-10-02) |
| March 5, 2026 | ZD | F | 22,139 | $43.65 | $966,367 | 348,693 Indirect | -5.97% | Disposed | 26.5% (price as of 2026-10-02) |
| March 5, 2026 | ZD | M | 43,664 | · | · | 370,832 Indirect | +13.35% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2026 | ZD | F | 10,184 | $35.15 | $357,968 | 300,528 Indirect | -3.28% | Disposed | 57.0% (price as of 2026-10-02) |
| Nov. 21, 2025 | ZD | M | 27,904 | · | · | 0 Direct | · | Acquired | (price as of 2026-10-02) |
| Nov. 21, 2025 | ZD | F | 14,244 | $30.35 | $432,305 | 310,155 Indirect | -4.39% | Disposed | 81.9% (price as of 2026-10-02) |
| Nov. 21, 2025 | ZD | M | 27,904 | · | · | 324,399 Indirect | +9.41% | Acquired | (price as of 2026-10-02) |
| March 6, 2025 | ZD | M | 23,674 | · | · | 47,349 Direct | +100.00% | Acquired | (price as of 2026-10-02) |
| March 6, 2025 | ZD | F | 2,964 | $39.15 | $116,041 | 296,495 Indirect | -0.99% | Disposed | 41.0% (price as of 2026-10-02) |
| March 6, 2025 | ZD | M | 5,807 | · | · | 299,459 Indirect | +1.98% | Acquired | (price as of 2026-10-02) |
| March 6, 2025 | ZD | F | 12,085 | $39.15 | $473,128 | 293,652 Indirect | -3.95% | Disposed | 41.0% (price as of 2026-10-02) |
| March 6, 2025 | ZD | M | 23,674 | · | · | 305,737 Indirect | +8.39% | Acquired | (price as of 2026-10-02) |
| March 5, 2025 | ZD | A | 130,993 | · | · | 130,993 Direct | · | Acquired | (price as of 2026-10-02) |
| March 4, 2025 | ZD | P | 12,636 | $39.56 | $499,880 | 282,063 Indirect | +4.69% | Acquired | 39.5% (price as of 2026-10-02) |
| Jan. 1, 2025 | ZD | F | 11,318 | $54.34 | $615,020 | 220,414 Direct | -4.88% | Disposed | 1.6% (price as of 2026-10-02) |
| Nov. 21, 2024 | ZD | M | 27,903 | · | · | 27,904 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| Nov. 21, 2024 | ZD | F | 14,244 | $57.22 | $815,042 | 231,732 Direct | -5.79% | Disposed | -3.5% (price as of 2026-10-02) |
| Nov. 21, 2024 | ZD | M | 27,903 | · | · | 245,710 Direct | +12.81% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2024 | ZD | F | 11,786 | $67.19 | $791,901 | 408,153 Direct | -2.81% | Disposed | -17.8% (price as of 2026-10-02) |
| Nov. 21, 2023 | ZD | M | 27,903 | $65.04 | $1,814,811 | 55,807 Direct | -33.33% | Disposed | -15.1% (price as of 2026-10-02) |
| Nov. 21, 2023 | ZD | F | 14,245 | $65.04 | $926,495 | 419,939 Direct | -3.28% | Disposed | -15.1% (price as of 2026-10-02) |
| Nov. 21, 2023 | ZD | M | 27,903 | · | · | 429,133 Direct | +6.95% | Acquired | (price as of 2026-10-02) |
| May 30, 2023 | ZD | P | 10,000 | $58.86 | $588,600 | 120,000 Indirect | +9.09% | Acquired | -6.2% (price as of 2026-10-02) |
| Jan. 1, 2023 | ZD | F | 12,090 | $79.10 | $956,319 | 401,230 Direct | -2.93% | Disposed | -30.2% (price as of 2026-10-02) |
| Nov. 21, 2022 | ZD | F | 14,244 | $87.77 | $1,250,196 | 413,320 Direct | -3.33% | Disposed | -37.1% (price as of 2026-10-02) |
| May 4, 2022 | ZD | F | 1,054 | $91.68 | $96,631 | 427,564 Direct | -0.25% | Disposed | -39.8% (price as of 2026-10-02) |
| Jan. 1, 2022 | ZD | F | 12,514 | $110.86 | $1,387,302 | 428,618 Direct | -2.84% | Disposed | -50.2% (price as of 2026-10-02) |
| Dec. 10, 2021 | ZD | F | 1,553 | $106.60 | $165,550 | 441,132 Direct | -0.35% | Disposed | -48.2% (price as of 2026-10-02) |
| Nov. 21, 2021 | ZD | A | 111,613 | · | · | 111,613 Direct | · | Acquired | (price as of 2026-10-02) |
| July 14, 2021 | ZD | F | 24,485 | $139.42 | $3,413,699 | 442,685 Direct | -5.24% | Disposed | -54.5% (price as of 2026-10-02) |
| July 13, 2021 | ZD | F | 1,315 | $138.69 | $182,377 | 467,170 Direct | -0.28% | Disposed | -54.2% (price as of 2026-10-02) |
| May 9, 2021 | ZD | F | 1,537 | $122.10 | $187,668 | 468,485 Direct | -0.33% | Disposed | -48.0% (price as of 2026-10-02) |
| May 4, 2021 | ZD | F | 1,316 | $119.45 | $157,196 | 470,022 Direct | -0.28% | Disposed | -46.9% (price as of 2026-10-02) |
| May 3, 2021 | ZD | F | 1,315 | $122.05 | $160,496 | 471,338 Direct | -0.28% | Disposed | -48.0% (price as of 2026-10-02) |
| April 22, 2021 | ZD | F | 1,537 | $120.29 | $184,886 | 472,653 Direct | -0.32% | Disposed | -47.2% (price as of 2026-10-02) |
| April 12, 2021 | ZD | F | 24,485 | $121.59 | $2,977,131 | 474,190 Direct | -4.91% | Disposed | -47.8% (price as of 2026-10-02) |
| March 23, 2021 | ZD | F | 1,315 | $117.70 | $154,776 | 498,675 Direct | -0.26% | Disposed | -46.1% (price as of 2026-10-02) |
| March 5, 2021 | ZD | F | 1,536 | $113.76 | $174,735 | 499,990 Direct | -0.31% | Disposed | -44.2% (price as of 2026-10-02) |
| March 4, 2021 | ZD | F | 24,485 | $110.62 | $2,708,531 | 501,526 Direct | -4.65% | Disposed | -42.6% (price as of 2026-10-02) |
| Feb. 23, 2021 | ZD | F | 1,315 | $109.28 | $143,703 | 526,011 Direct | -0.25% | Disposed | -41.9% (price as of 2026-10-02) |
| Feb. 23, 2021 | ZD | F | 1,315 | $109.28 | $143,703 | 526,011 Direct | -0.25% | Disposed | -41.9% (price as of 2026-10-02) |
| Jan. 1, 2021 | ZD | F | 10,779 | $97.69 | $1,053,001 | 637,326 Direct | -1.66% | Disposed | -35.0% (price as of 2026-10-02) |
| May 9, 2020 | ZD | F | 1,536 | $81.60 | $125,338 | 648,105 Direct | -0.24% | Disposed | -22.2% (price as of 2026-10-02) |
| May 4, 2020 | ZD | F | 1,315 | $75.75 | $99,611 | 649,641 Direct | -0.20% | Disposed | -16.2% (price as of 2026-10-02) |
| March 12, 2020 | ZD | P | 13,354 | $74.74 | $998,078 | 650,956 Direct | +2.09% | Acquired | -15.1% (price as of 2026-10-02) |
| Jan. 30, 2020 | ZD | F | 1,536 | $99.11 | $152,233 | 637,602 Direct | -0.24% | Disposed | -35.9% (price as of 2026-10-02) |
| Jan. 1, 2020 | ZD | F | 59,683 | $96.22 | $5,742,698 | 639,138 Direct | -8.54% | Disposed | -34.0% (price as of 2026-10-02) |
| May 9, 2019 | ZD | F | 1,536 | $90.60 | $139,162 | 698,821 Direct | -0.22% | Disposed | -29.9% (price as of 2026-10-02) |
| May 6, 2019 | ZD | F | 1,315 | $87.11 | $114,550 | 700,357 Direct | -0.19% | Disposed | -27.1% (price as of 2026-10-02) |
| Jan. 1, 2019 | ZD | F | 10,158 | $68.88 | $699,683 | 701,672 Direct | -1.43% | Disposed | -7.8% (price as of 2026-10-02) |
| Dec. 17, 2018 | ZD | S 10b5-1 | 3,000 | $70.24 | $210,720 | 711,830 Direct | -0.42% | Disposed | -9.6% (price as of 2026-10-02) |
| Nov. 15, 2018 | ZD | S 10b5-1 | 3,000 | $71.90 | $215,700 | 714,830 Direct | -0.42% | Disposed | -11.7% (price as of 2026-10-02) |
| Oct. 15, 2018 | ZD | S 10b5-1 | 3,000 | $72.55 | $217,650 | 717,830 Direct | -0.42% | Disposed | -12.5% (price as of 2026-10-02) |
| Sept. 17, 2018 | ZD | S 10b5-1 | 3,000 | $82.23 | $246,690 | 720,830 Direct | -0.41% | Disposed | -22.8% (price as of 2026-10-02) |
| Aug. 15, 2018 | ZD | S 10b5-1 | 3,000 | $81.42 | $244,260 | 723,830 Direct | -0.41% | Disposed | -22.0% (price as of 2026-10-02) |
| July 16, 2018 | ZD | S 10b5-1 | 3,000 | $87.81 | $263,430 | 726,830 Direct | -0.41% | Disposed | -27.7% (price as of 2026-10-02) |
| June 28, 2018 | ZD | F | 1,271 | $86.14 | $109,484 | 729,830 Direct | -0.17% | Disposed | -26.3% (price as of 2026-10-02) |
| June 15, 2018 | ZD | S 10b5-1 | 3,000 | $88.06 | $264,180 | 731,101 Direct | -0.41% | Disposed | -27.9% (price as of 2026-10-02) |
| May 15, 2018 | ZD | S 10b5-1 | 3,000 | $84.96 | $254,880 | 734,101 Direct | -0.41% | Disposed | -25.3% (price as of 2026-10-02) |
| May 9, 2018 | ZD | F | 1,219 | $87.44 | $106,589 | 737,101 Direct | -0.17% | Disposed | -27.4% (price as of 2026-10-02) |
| May 4, 2018 | ZD | F | 912 | $84.14 | $76,736 | 738,320 Direct | -0.12% | Disposed | -24.6% (price as of 2026-10-02) |
| April 16, 2018 | ZD | S 10b5-1 | 3,000 | $79.70 | $239,100 | 739,232 Direct | -0.40% | Disposed | -20.4% (price as of 2026-10-02) |
| March 15, 2018 | ZD | S | 3,000 | $82.90 | $248,700 | 742,232 Direct | -0.40% | Disposed | -23.4% (price as of 2026-10-02) |
| Feb. 15, 2018 | ZD | S | 3,000 | $76.59 | $229,770 | 745,232 Direct | -0.40% | Disposed | -17.1% (price as of 2026-10-02) |
| Jan. 16, 2018 | ZD | S | 3,000 | $77.63 | $232,890 | 748,232 Direct | -0.40% | Disposed | -18.2% (price as of 2026-10-02) |
| Jan. 1, 2018 | ZD | A | 400,000 | · | · | 400,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2018 | ZD | A | 600,000 | · | · | 751,232 Direct | +396.74% | 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 |
|---|---|---|---|---|---|---|---|
| March 11, 2026 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 122,790 | Acquired |
| March 6, 2026 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 23,674 | Acquired |
| March 5, 2026 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 43,664 | Acquired |
| Nov. 21, 2025 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 27,904 | Acquired |
| March 6, 2025 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 23,674 | Acquired |
| March 5, 2025 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 130,993 | Acquired |
| Nov. 21, 2024 | ZD | Restricted Stock Units | Common Stock, $0.01 par value | · | · | 27,903 | Disposed |
| Nov. 21, 2023 | ZD | Restricted Stock Units | Common Stock $0.01 Par Value | $0.00 | · | 27,903 | Disposed |
| Nov. 21, 2021 | ZD | Restricted Stock Units | Common Stock $0.01 Par Value | $0.00 | · | 111,613 | Acquired |
| Jan. 1, 2018 | ZD | Options to Purchase Common Stock | Common Stock $0.01 Par Value | $75.03 | Jan. 1, 2028 | 400,000 | 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 |
|---|---|---|---|---|
| Jan. 2, 2018 | ZD | Common Stock $0.01 Par Value | 151,232 | Direct |
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 |
|---|---|---|---|---|---|---|---|---|
| 2020 | $1,000,000 | · | · | · | $1,230,000 | · | $26,423 | $2,256,423 |
| 2019 | $1,000,000 | · | · | · | $1,123,000 | · | $28,811 | $2,151,811 |
| 2018 | $1,000,000 | · | $35,494,000 | $7,756,000 | $783,000 | · | $29,153 | $45,062,153 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.