Jeffrey Daniel Adelman
Insider
First SEC filing: April 4, 2006 · Latest: April 4, 2006
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 15, 2014 | ZD | S | 1,635 | $53.24 | $87,047 | 25,991 Direct | -5.92% | Disposed | 18.3% (price as of 2026-10-06) |
| Aug. 14, 2014 | ZD | F | 965 | $53.24 | $51,377 | 27,626 Direct | -3.38% | Disposed | 18.3% (price as of 2026-10-06) |
| Aug. 8, 2014 | ZD | S | 1,225 | $51.10 | $62,598 | 28,591 Direct | -4.11% | Disposed | 23.3% (price as of 2026-10-06) |
| May 12, 2014 | ZD | F | 723 | $48.16 | $34,820 | 29,553 Direct | -2.39% | Disposed | 30.8% (price as of 2026-10-06) |
| May 6, 2014 | ZD | A | 9,869 | · | · | 30,276 Direct | +48.36% | Acquired | (price as of 2026-10-06) |
| March 6, 2014 | ZD | M | 8,600 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| March 6, 2014 | ZD | S | 8,108 | $51.50 | $417,562 | 20,140 Direct | -28.70% | Disposed | 22.3% (price as of 2026-10-06) |
| March 6, 2014 | ZD | S | 8,600 | $51.50 | $442,900 | 28,248 Direct | -23.34% | Disposed | 22.3% (price as of 2026-10-06) |
| March 6, 2014 | ZD | M | 8,600 | $17.19 | $147,834 | 36,848 Direct | +30.44% | Acquired | 266.4% (price as of 2026-10-06) |
| March 5, 2014 | ZD | F | 4,792 | $51.51 | $246,836 | 28,248 Direct | -14.50% | Disposed | 22.3% (price as of 2026-10-06) |
| Aug. 22, 2013 | ZD | S | 1,635 | $50.01 | $81,766 | 33,040 Direct | -4.72% | Disposed | 25.9% (price as of 2026-10-06) |
| Aug. 14, 2013 | ZD | F | 965 | $51.81 | $49,997 | 34,675 Direct | -2.71% | Disposed | 21.6% (price as of 2026-10-06) |
| Aug. 8, 2013 | ZD | M | 9,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Aug. 8, 2013 | ZD | S | 9,000 | $49.25 | $443,250 | 35,640 Direct | -20.16% | Disposed | 27.9% (price as of 2026-10-06) |
| Aug. 8, 2013 | ZD | M | 9,000 | $32.45 | $292,050 | 44,640 Direct | +25.25% | Acquired | 94.1% (price as of 2026-10-06) |
| May 10, 2013 | ZD | A | 9,740 | · | · | 35,640 Direct | +37.61% | Acquired | (price as of 2026-10-06) |
| March 6, 2013 | ZD | S | 6,757 | $36.96 | $249,739 | 25,900 Direct | -20.69% | Disposed | 70.4% (price as of 2026-10-06) |
| March 5, 2013 | ZD | M | 8,600 | · | · | 8,600 Direct | -50.00% | Disposed | (price as of 2026-10-06) |
| March 5, 2013 | ZD | S | 8,600 | $36.67 | $315,362 | 32,657 Direct | -20.84% | Disposed | 71.8% (price as of 2026-10-06) |
| March 5, 2013 | ZD | M | 8,600 | $17.19 | $147,834 | 41,257 Direct | +26.33% | Acquired | 266.4% (price as of 2026-10-06) |
| March 5, 2013 | ZD | F | 3,993 | $36.92 | $147,422 | 32,657 Direct | -10.89% | Disposed | 70.6% (price as of 2026-10-06) |
| Nov. 13, 2012 | ZD | M | 8,600 | · | · | 17,200 Direct | -33.33% | Disposed | (price as of 2026-10-06) |
| Nov. 13, 2012 | ZD | S | 8,600 | $30.50 | $262,300 | 36,650 Direct | -19.01% | Disposed | 106.5% (price as of 2026-10-06) |
| Nov. 13, 2012 | ZD | M | 8,600 | $17.19 | $147,834 | 45,250 Direct | +23.47% | Acquired | 266.4% (price as of 2026-10-06) |
| Aug. 31, 2012 | ZD | S | 574 | $29.40 | $16,876 | 36,650 Direct | -1.54% | Disposed | 114.2% (price as of 2026-10-06) |
| Aug. 14, 2012 | ZD | A | 13,000 | · | · | 37,224 Direct | +53.67% | Acquired | (price as of 2026-10-06) |
| Aug. 3, 2012 | ZD | S | 5,482 | $29.99 | $164,405 | 24,224 Direct | -18.45% | Disposed | 110.0% (price as of 2026-10-06) |
| Aug. 3, 2012 | ZD | F | 326 | $29.65 | $9,666 | 29,706 Direct | -1.09% | Disposed | 112.4% (price as of 2026-10-06) |
| March 5, 2012 | ZD | F | 3,118 | $29.82 | $92,979 | 30,032 Direct | -9.41% | Disposed | 111.2% (price as of 2026-10-06) |
| Aug. 29, 2011 | ZD | S | 479 | $30.50 | $14,610 | 33,150 Direct | -1.42% | Disposed | 106.5% (price as of 2026-10-06) |
| Aug. 3, 2011 | ZD | F | 271 | $30.28 | $8,206 | 33,629 Direct | -0.80% | Disposed | 108.0% (price as of 2026-10-06) |
| May 6, 2011 | ZD | M | 8,600 | · | · | 34,800 Direct | -19.82% | Disposed | (price as of 2026-10-06) |
| May 6, 2011 | ZD | S | 8,600 | $29.99 | $257,914 | 33,900 Direct | -20.24% | Disposed | 110.0% (price as of 2026-10-06) |
| May 6, 2011 | ZD | M | 8,600 | $17.19 | $147,834 | 42,500 Direct | +25.37% | Acquired | 266.4% (price as of 2026-10-06) |
| March 5, 2011 | ZD | S | 4,112 | $29.50 | $121,304 | 33,900 Direct | -10.82% | Disposed | 113.5% (price as of 2026-10-06) |
| March 5, 2011 | ZD | F | 2,338 | $29.41 | $68,761 | 38,012 Direct | -5.79% | Disposed | 114.2% (price as of 2026-10-06) |
| Dec. 6, 2010 | ZD | M | 12,000 | · | · | 43,400 Direct | -21.66% | Disposed | (price as of 2026-10-06) |
| Dec. 6, 2010 | ZD | S | 16,180 | $29.99 | $485,238 | 40,350 Direct | -28.62% | Disposed | 110.0% (price as of 2026-10-06) |
| Dec. 6, 2010 | ZD | M | 12,000 | $18.76 | $225,120 | 56,530 Direct | +26.95% | Acquired | 235.7% (price as of 2026-10-06) |
| Aug. 31, 2010 | ZD | F | 2,200 | $21.49 | $47,278 | 44,530 Direct | -4.71% | Disposed | 193.1% (price as of 2026-10-06) |
| Aug. 4, 2010 | ZD | S | 2,214 | $24.50 | $54,243 | 46,730 Direct | -4.52% | Disposed | 157.1% (price as of 2026-10-06) |
| Aug. 4, 2010 | ZD | S | 3,200 | $24.75 | $79,200 | 48,944 Direct | -6.14% | Disposed | 154.5% (price as of 2026-10-06) |
| Aug. 4, 2010 | ZD | S | 12 | $24.77 | $297 | 52,144 Direct | -0.02% | Disposed | 154.3% (price as of 2026-10-06) |
| Aug. 3, 2010 | ZD | F | 220 | $24.72 | $5,438 | 52,156 Direct | -0.42% | Disposed | 154.8% (price as of 2026-10-06) |
| May 17, 2010 | ZD | M | 8,600 | · | · | 55,400 Direct | -13.44% | Disposed | (price as of 2026-10-06) |
| May 17, 2010 | ZD | M | 24,000 | · | · | 64,000 Direct | -27.27% | Disposed | (price as of 2026-10-06) |
| May 17, 2010 | ZD | S | 36,322 | $23.99 | $871,365 | 52,376 Direct | -40.95% | Disposed | 162.5% (price as of 2026-10-06) |
| May 17, 2010 | ZD | M | 8,600 | $17.19 | $147,834 | 88,698 Direct | +10.74% | Acquired | 266.4% (price as of 2026-10-06) |
| May 17, 2010 | ZD | M | 24,000 | $18.76 | $450,240 | 80,098 Direct | +42.78% | Acquired | 235.7% (price as of 2026-10-06) |
| March 5, 2010 | ZD | F | 1,577 | $22.87 | $36,066 | 56,098 Direct | -2.73% | Disposed | 175.4% (price as of 2026-10-06) |
| Aug. 31, 2009 | ZD | F | 1,787 | $21.37 | $38,188 | 57,675 Direct | -3.01% | Disposed | 194.7% (price as of 2026-10-06) |
| Aug. 6, 2009 | ZD | S | 2,160 | $24.50 | $52,920 | 59,462 Direct | -3.51% | Disposed | 157.1% (price as of 2026-10-06) |
| Aug. 3, 2009 | ZD | F | 160 | $23.95 | $3,832 | 61,622 Direct | -0.26% | Disposed | 163.0% (price as of 2026-10-06) |
| March 5, 2009 | ZD | S | 1,000 | $23.00 | $23,000 | 61,782 Direct | -1.59% | Disposed | 173.9% (price as of 2026-10-06) |
| March 5, 2009 | ZD | A | 43,000 | · | · | 62,782 Direct | +217.37% | Acquired | (price as of 2026-10-06) |
| March 5, 2009 | ZD | A | 43,000 | · | · | 88,000 Direct | +95.56% | Acquired | (price as of 2026-10-06) |
| Aug. 31, 2008 | ZD | F | 1,430 | $24.67 | $35,278 | 19,782 Direct | -6.74% | Disposed | 155.3% (price as of 2026-10-06) |
| Sept. 5, 2007 | ZD | M | 5,328 | · | · | 45,000 Direct | -10.59% | Disposed | (price as of 2026-10-06) |
| Sept. 5, 2007 | ZD | S | 5,328 | $35.22 | $187,652 | 21,212 Direct | -20.08% | Disposed | 78.8% (price as of 2026-10-06) |
| Sept. 5, 2007 | ZD | M | 5,328 | $18.76 | $99,953 | 26,540 Direct | +25.12% | Acquired | 235.7% (price as of 2026-10-06) |
| Sept. 4, 2007 | ZD | M | 6,672 | · | · | 50,328 Direct | -11.71% | Disposed | (price as of 2026-10-06) |
| Sept. 4, 2007 | ZD | S | 6,672 | $34.75 | $231,852 | 21,212 Direct | -23.93% | Disposed | 81.3% (price as of 2026-10-06) |
| Sept. 4, 2007 | ZD | M | 6,672 | $18.76 | $125,167 | 27,884 Direct | +31.45% | Acquired | 235.7% (price as of 2026-10-06) |
| Aug. 31, 2007 | ZD | F | 1,073 | $34.00 | $36,482 | 21,212 Direct | -4.81% | Disposed | 85.3% (price as of 2026-10-06) |
| Aug. 3, 2007 | ZD | A | 9,000 | · | · | 57,000 Direct | +18.75% | Acquired | (price as of 2026-10-06) |
| Aug. 3, 2007 | ZD | A | 3,000 | · | · | 22,285 Direct | +15.56% | Acquired | (price as of 2026-10-06) |
| June 4, 2007 | ZD | M | 4,200 | · | · | 48,000 Direct | -8.05% | Disposed | (price as of 2026-10-06) |
| June 4, 2007 | ZD | M | 2,500 | · | · | 52,200 Direct | -4.57% | Disposed | (price as of 2026-10-06) |
| June 4, 2007 | ZD | M | 847 | · | · | 54,700 Direct | -1.52% | Disposed | (price as of 2026-10-06) |
| June 4, 2007 | ZD | S | 7,547 | $33.94 | $256,145 | 19,285 Direct | -28.13% | Disposed | 85.6% (price as of 2026-10-06) |
| June 4, 2007 | ZD | M | 4,200 | $18.76 | $78,792 | 26,832 Direct | +18.56% | Acquired | 235.7% (price as of 2026-10-06) |
| June 4, 2007 | ZD | M | 2,500 | $4.47 | $11,175 | 22,632 Direct | +12.42% | Acquired | 1309.1% (price as of 2026-10-06) |
| June 4, 2007 | ZD | M | 847 | $18.76 | $15,890 | 20,132 Direct | +4.39% | Acquired | 235.7% (price as of 2026-10-06) |
| May 8, 2007 | ZD | M | 500 | · | · | 55,547 Direct | -0.89% | Disposed | (price as of 2026-10-06) |
| May 8, 2007 | ZD | S | 500 | $30.50 | $15,250 | 19,285 Direct | -2.53% | Disposed | 106.5% (price as of 2026-10-06) |
| May 8, 2007 | ZD | M | 500 | $4.47 | $2,235 | 19,785 Direct | +2.59% | Acquired | 1309.1% (price as of 2026-10-06) |
| May 8, 2007 | ZD | S | 670 | $30.50 | $20,435 | 19,285 Direct | -3.36% | Disposed | 106.5% (price as of 2026-10-06) |
| March 16, 2007 | ZD | M | 1,797 | · | · | 56,047 Direct | -3.11% | Disposed | (price as of 2026-10-06) |
| March 16, 2007 | ZD | S | 500 | $28.26 | $14,130 | 19,955 Direct | -2.44% | Disposed | 122.9% (price as of 2026-10-06) |
| March 16, 2007 | ZD | S | 1,297 | $28.25 | $36,640 | 20,455 Direct | -5.96% | Disposed | 123.0% (price as of 2026-10-06) |
| March 16, 2007 | ZD | M | 1,797 | $18.76 | $33,712 | 21,752 Direct | +9.01% | Acquired | 235.7% (price as of 2026-10-06) |
| March 15, 2007 | ZD | M | 3,000 | · | · | 57,844 Direct | -4.93% | Disposed | (price as of 2026-10-06) |
| March 15, 2007 | ZD | M | 5,156 | · | · | 60,844 Direct | -7.81% | Disposed | (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 100 | $27.83 | $2,783 | 19,955 Direct | -0.50% | Disposed | 126.3% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 100 | $27.82 | $2,782 | 20,055 Direct | -0.50% | Disposed | 126.4% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 1,200 | $27.81 | $33,372 | 20,155 Direct | -5.62% | Disposed | 126.5% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 900 | $27.80 | $25,020 | 21,355 Direct | -4.04% | Disposed | 126.6% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 425 | $27.79 | $11,811 | 22,255 Direct | -1.87% | Disposed | 126.6% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 5,431 | $27.78 | $150,873 | 22,680 Direct | -19.32% | Disposed | 126.7% (price as of 2026-10-06) |
| March 15, 2007 | ZD | M | 3,000 | $4.47 | $13,410 | 28,111 Direct | +11.95% | Acquired | 1309.1% (price as of 2026-10-06) |
| March 15, 2007 | ZD | M | 5,156 | $18.76 | $96,727 | 25,111 Direct | +25.84% | Acquired | 235.7% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 300 | $27.80 | $8,340 | 19,955 Direct | -1.48% | Disposed | 126.6% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 158 | $27.81 | $4,394 | 20,255 Direct | -0.77% | Disposed | 126.5% (price as of 2026-10-06) |
| March 15, 2007 | ZD | S | 100 | $27.82 | $2,782 | 20,413 Direct | -0.49% | Disposed | 126.4% (price as of 2026-10-06) |
| Dec. 22, 2006 | ZD | A | 6,000 | · | · | 6,000 Direct | · | Acquired | (price as of 2026-10-06) |
| Dec. 22, 2006 | ZD | D | 6,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-06) |
| Dec. 6, 2006 | ZD | F | 715 | $28.44 | $20,335 | 20,513 Direct | -3.37% | Disposed | 121.5% (price as of 2026-10-06) |
| May 1, 2006 | ZD | P | 174 | $42.97 | $7,477 | 10,614 Direct | +1.67% | Acquired | 193.2% (price as of 2026-10-06) |
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 6, 2014 | ZD | Options to Purchase Common Stock | Common Stock $0.01 Par Value | $17.19 | March 5, 2019 | 8,600 | Disposed |
| Aug. 8, 2013 | ZD | Options to Purchase Common Stock | Common Stock $0.01 Par Value | $32.45 | Aug. 3, 2017 | 9,000 | Disposed |
| March 5, 2013 | ZD | Options to Purchase Common Stock | Common Stock $0.01 Par Value | $17.19 | March 5, 2019 | 8,600 | Disposed |
| Nov. 13, 2012 | ZD | Options to Purchase Common Stock | Common Stock $0.01 Par Value | $17.19 | March 5, 2019 | 8,600 | Disposed |
| May 6, 2011 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $17.19 | March 5, 2019 | 8,600 | Disposed |
| Dec. 6, 2010 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 12,000 | Disposed |
| May 17, 2010 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $17.19 | March 5, 2019 | 8,600 | Disposed |
| May 17, 2010 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 24,000 | Disposed |
| March 5, 2009 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $17.19 | March 5, 2019 | 43,000 | Acquired |
| Sept. 5, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 5,328 | Disposed |
| Sept. 4, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 6,672 | Disposed |
| Aug. 3, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $32.45 | Aug. 3, 2017 | 9,000 | Acquired |
| June 4, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 4,200 | Disposed |
| June 4, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $4.47 | June 25, 2012 | 2,500 | Disposed |
| June 4, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 847 | Disposed |
| May 8, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $4.47 | June 25, 2012 | 500 | Disposed |
| March 16, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 1,797 | Disposed |
| March 15, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $4.47 | June 25, 2012 | 3,000 | Disposed |
| March 15, 2007 | ZD | Option to purchase Common Stock | Common Stock, $0.01 par value | $18.76 | Aug. 31, 2015 | 5,156 | Disposed |
| Dec. 22, 2006 | ZD | Option to purchase Common Stock | Common Stock | $4.47 | June 25, 2012 | 6,000 | Acquired |
| Dec. 22, 2006 | ZD | Option to purchase Common Stock | Common Stock | $3.52 | June 25, 2012 | 6,000 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 12 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| April 4, 2006 | ZD | Common Stock, $0.01 par value [F1] | 10,440 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 3,000 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 2,551 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 2,551 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 2,551 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 2,551 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 2,551 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 3,449 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 3,449 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 3,449 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 3,449 | Direct |
| April 4, 2006 | ZD | Option to Purchase Common Stock [F2] | 3,449 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2012 | $285,850 | $16,133 | $370,760 | · | $168,867 | · | $19,891 | $861,501 |
| 2011 | $275,000 | · | · | · | $126,000 | · | $17,674 | $418,674 |
| 2010 | $270,000 | · | · | · | $92,500 | · | $15,713 | $378,213 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.