Brian W Kretzmer

CIK 1280284 · View on SEC EDGAR ↗

Insider

First SEC filing: June 3, 2026 · Latest: June 3, 2026

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Insider transactions

0 buys (P) 2 sells (S) Net: $-226,590 + 70 non-open-market transactions below last 12 months, based on the transactions shown below

Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted

70 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
Aug. 18, 2026 ZD S 2,513 $55.31 $138,994 20,000 Direct -11.16% Disposed -0.4% (price as of 2026-08-21)
June 2, 2026 ZD S 1,968 $44.51 $87,596 22,513 Direct -8.04% Disposed 23.8% (price as of 2026-08-21)
March 6, 2025 ZD P 653 $38.33 $25,029 12,968 Direct +5.30% Acquired 43.8% (price as of 2026-08-21)
Nov. 17, 2022 ZD S 2,531 $88.55 $224,120 6,789 Direct -27.16% Disposed -37.8% (price as of 2026-08-21)
Feb. 16, 2021 ZD S 10b5-1 100 $112.99 $11,299 5,006 Direct -1.96% Disposed -43.9% (price as of 2026-08-21)
Feb. 16, 2021 ZD S 10b5-1 5,537 $111.88 $619,480 5,106 Direct -52.02% Disposed -43.4% (price as of 2026-08-21)
Feb. 16, 2021 ZD S 10b5-1 1,786 $110.72 $197,746 10,643 Direct -14.37% Disposed -42.8% (price as of 2026-08-21)
Feb. 16, 2021 ZD S 10b5-1 7,694 $110.12 $847,263 12,429 Direct -38.23% Disposed -42.4% (price as of 2026-08-21)
Sept. 10, 2020 ZD S 2,250 $71.50 $160,875 5,006 Direct -31.01% Disposed -11.4% (price as of 2026-08-21)
Feb. 19, 2020 ZD S 4,968 $96.54 $479,611 7,256 Direct -40.64% Disposed -34.4% (price as of 2026-08-21)
Sept. 5, 2019 ZD S 1,800 $87.03 $156,654 7,256 Direct -19.88% Disposed -27.2% (price as of 2026-08-21)
March 13, 2019 ZD S 6,000 $84.17 $505,020 6,764 Direct -47.01% Disposed -24.7% (price as of 2026-08-21)
May 9, 2018 ZD S 5,942 $87.25 $518,440 6,764 Direct -46.77% Disposed -27.4% (price as of 2026-08-21)
June 6, 2017 ZD S 1,336 $86.20 $115,163 10,271 Direct -11.51% Disposed -26.5% (price as of 2026-08-21)
Feb. 13, 2017 ZD S 2,000 $84.34 $168,680 8,297 Direct -19.42% Disposed -24.9% (price as of 2026-08-21)
Aug. 30, 2016 ZD S 6,600 $67.95 $448,470 8,297 Direct -44.30% Disposed -6.7% (price as of 2026-08-21)
June 8, 2016 ZD S 6,600 $67.70 $446,820 8,297 Direct -44.30% Disposed -6.4% (price as of 2026-08-21)
May 17, 2016 ZD S 4,717 $62.59 $295,237 8,297 Direct -36.25% Disposed 1.3% (price as of 2026-08-21)
Nov. 10, 2015 ZD S 6,600 $78.88 $520,608 10,156 Direct -39.39% Disposed -19.7% (price as of 2026-08-21)
June 5, 2015 ZD S 13,200 $66.79 $881,628 10,156 Direct -56.52% Disposed -5.1% (price as of 2026-08-21)
June 3, 2015 ZD S 8,355 $67.01 $559,869 10,156 Direct -45.14% Disposed -5.4% (price as of 2026-08-21)
June 5, 2014 ZD S 10,620 $47.94 $509,123 29,839 Direct -26.25% Disposed 32.2% (price as of 2026-08-21)
Dec. 6, 2013 ZD S 13,684 $46.08 $630,559 36,427 Direct -27.31% Disposed 37.5% (price as of 2026-08-21)
June 3, 2013 ZD S 8,332 $40.66 $338,779 30,672 Direct -21.36% Disposed 55.9% (price as of 2026-08-21)
Feb. 22, 2012 ZD S 23,997 $30.21 $724,949 28,524 Direct -45.69% Disposed 109.8% (price as of 2026-08-21)
Feb. 17, 2012 ZD S 1,000 $30.06 $30,060 27,524 Direct -3.51% Disposed 110.8% (price as of 2026-08-21)
Feb. 17, 2012 ZD S 13,029 $30.02 $391,131 28,524 Direct -31.36% Disposed 111.1% (price as of 2026-08-21)

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
May 6, 2026 ZD Restricted Stock Units Common Stock (5,723) $0.00 — 5,723 Acquired
May 7, 2025 ZD Restricted Stock Units Common Stock (7,903) $0.00 — 7,903 Disposed
May 7, 2025 ZD Restricted Stock Units Common Stock (7,903) $0.00 — 7,903 Acquired
May 7, 2024 ZD Restricted Stock Units Common Stock $0.00 — 3,610 Disposed
May 7, 2024 ZD Restricted Stock Units Common Stock (3,611) $0.00 — 3,611 Acquired
May 5, 2024 ZD Restricted Stock Units Common Stock (3,013) $0.00 — 3,013 Disposed
May 10, 2023 ZD Restricted Stock Units Common Stock (2,513) $0.00 — 2,513 Disposed
May 5, 2023 ZD Restricted Stock Units Common Stock (3,013) $0.00 — 3,013 Acquired
May 10, 2022 ZD Restricted Stock Units Common Stock (2,513) $0.00 — 2,513 Acquired
May 7, 2022 ZD Restricted Stock Units Common Stock (1,639) $0.00 — 1,639 Disposed
May 7, 2021 ZD Restricted Stock Units Common Stock (1,639) $0.00 — 1,639 Acquired
May 7, 2021 ZD Restricted Stock Units Common Stock (2,531) $0.00 — 2,531 Disposed
Feb. 16, 2021 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (15,117) $29.34 May 12, 2021 15,117 Disposed
May 7, 2020 ZD Restricted Stock Units Common Stock (2,531) $0.00 — 2,531 Acquired
Feb. 19, 2020 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (4,968) $22.92 May 6, 2020 4,968 Disposed
March 13, 2019 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (6,000) $22.92 May 6, 2020 6,000 Disposed
June 6, 2017 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (1,336) $21.67 May 7, 2019 1,336 Disposed
Feb. 13, 2017 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (2,000) $21.67 May 7, 2019 2,000 Disposed
Aug. 30, 2016 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (6,600) $32.45 Aug. 3, 2017 6,600 Disposed
June 8, 2016 ZD Options to Purchase Common Stock Common Stock $0.01 par value (6,600) $32.45 Aug. 3, 2017 6,600 Disposed
Nov. 10, 2015 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (6,600) $32.45 Aug. 3, 2017 6,600 Disposed
June 5, 2015 ZD Options to Purchase Common Stock Common Stock, $0.01 par value (13,200) $32.45 Aug. 3, 2017 13,200 Disposed
June 7, 2013 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (3,656) $22.92 May 6, 2020 3,656 Disposed
June 7, 2013 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (6,672) $21.67 May 7, 2019 6,672 Disposed
June 7, 2013 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (9,111) $20.91 May 5, 2018 9,111 Disposed
Feb. 22, 2012 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (3,657) $22.92 May 6, 2020 3,657 Disposed
Feb. 22, 2012 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (6,672) $21.67 May 7, 2019 6,672 Disposed
Feb. 22, 2012 ZD Options to Purchase Common Stock Common Stock $0.01 Par Value (13,668) $20.91 May 5, 2018 13,668 Disposed
May 12, 2011 ZD Option to purchase Common Stock Common Stock, $0.01 par value (15,117) $29.34 May 12, 2021 15,117 Acquired
May 6, 2010 ZD Option to purchase Common Stock Common Stock, $0.01 par value (18,281) $22.92 May 6, 2020 18,281 Acquired
May 7, 2009 ZD Option to purchase Common Stock Common Stock, $0.01 par value (16,680) $21.67 May 7, 2019 16,680 Acquired
May 5, 2008 ZD Option to purchase Common Stock Common Stock, $0.01 par value (22,779) $20.91 May 5, 2018 22,779 Acquired
Aug. 3, 2007 ZD Option to purchase Common Stock Common Stock, $0.01 par value (33,000) $32.45 Aug. 3, 2017 33,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).