Mark A Schleifer
Insider
First SEC filing: July 1, 2009 · Latest: July 1, 2009
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. 2, 2011 | CCOI | M | 3,125 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 2, 2011 | CCOI | S | 3,125 | $16.58 | $51,812 | 0 Direct | -100.00% | Disposed | -49.0% (price as of 2026-10-02) |
| Dec. 2, 2011 | CCOI | M | 3,125 | $4.88 | $15,250 | 3,125 Direct | · | Acquired | 73.4% (price as of 2026-10-02) |
| Dec. 2, 2011 | CCOI | D | 33,650 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 17, 2011 | CCOI | S 10b5-1 | 3,000 | $14.90 | $44,700 | 33,650 Direct | -8.19% | Disposed | -43.2% (price as of 2026-10-02) |
| Oct. 3, 2011 | CCOI | S 10b5-1 | 1,250 | $13.27 | $16,588 | 36,650 Direct | -3.30% | Disposed | -36.2% (price as of 2026-10-02) |
| July 15, 2011 | CCOI | S 10b5-1 | 3,000 | $16.69 | $50,070 | 37,900 Direct | -7.33% | Disposed | -49.3% (price as of 2026-10-02) |
| July 1, 2011 | CCOI | S 10b5-1 | 1,250 | $16.83 | $21,038 | 40,900 Direct | -2.97% | Disposed | -49.7% (price as of 2026-10-02) |
| April 15, 2011 | CCOI | S 10b5-1 | 17,040 | $12.92 | $220,157 | 42,150 Direct | -28.79% | Disposed | -34.5% (price as of 2026-10-02) |
| April 15, 2011 | CCOI | D | 2,160 | · | · | 59,190 Direct | -3.52% | Disposed | (price as of 2026-10-02) |
| April 1, 2011 | CCOI | S | 1,250 | $14.32 | $17,900 | 61,350 Direct | -2.00% | Disposed | -40.9% (price as of 2026-10-02) |
| Jan. 4, 2011 | CCOI | S | 1,250 | $14.24 | $17,800 | 62,600 Direct | -1.96% | Disposed | -40.6% (price as of 2026-10-02) |
| Oct. 13, 2010 | CCOI | S | 1,250 | $10.00 | $12,500 | 63,850 Direct | -1.92% | Disposed | -15.4% (price as of 2026-10-02) |
| Oct. 11, 2010 | CCOI | S | 1,250 | $10.00 | $12,500 | 65,100 Direct | -1.88% | Disposed | -15.4% (price as of 2026-10-02) |
| April 15, 2010 | CCOI | A | 57,600 | · | · | 66,350 Direct | +658.29% | Acquired | (price as of 2026-10-02) |
| April 1, 2010 | CCOI | S 10b5-1 | 1,250 | $10.43 | $13,038 | 8,750 Direct | -12.50% | Disposed | -18.9% (price as of 2026-10-02) |
| March 3, 2010 | CCOI | S 10b5-1 | 1,250 | $10.52 | $13,150 | 10,000 Direct | -11.11% | Disposed | -19.6% (price as of 2026-10-02) |
| Oct. 9, 2009 | CCOI | S 10b5-1 | 10,000 | $12.46 | $124,600 | 11,250 Direct | -47.06% | Disposed | -32.1% (price as of 2026-10-02) |
| Oct. 1, 2009 | CCOI | A | 1,250 | $11.11 | $13,888 | 21,250 Direct | -5.56% | Disposed | -23.9% (price as of 2026-10-02) |
| July 1, 2009 | CCOI | S 10b5-1 | 1,250 | $8.22 | $10,275 | 22,500 Direct | -5.26% | Disposed | 2.9% (price as of 2026-10-02) |
| April 30, 2009 | CCOI | S 10b5-1 | 20,000 | $8.63 | $172,600 | 23,750 Direct | -45.71% | Disposed | -2.0% (price as of 2026-10-02) |
| April 2, 2009 | CCOI | S 10b5-1 | 1,250 | $8.20 | $10,250 | 43,750 Direct | -2.78% | Disposed | 3.2% (price as of 2026-10-02) |
| Jan. 2, 2009 | CCOI | S 10b5-1 | 5,000 | $6.48 | $32,400 | 45,000 Direct | -10.00% | Disposed | 30.6% (price as of 2026-10-02) |
| June 20, 2008 | CCOI | M | 599 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| June 20, 2008 | CCOI | S 10b5-1 | 599 | $14.89 | $8,919 | 50,000 Direct | -1.18% | Disposed | -43.2% (price as of 2026-10-02) |
| June 20, 2008 | CCOI | M | 599 | · | · | 50,599 Direct | +1.20% | Acquired | (price as of 2026-10-02) |
| June 6, 2008 | CCOI | M | 1,250 | · | · | 3,125 Direct | -28.57% | Disposed | (price as of 2026-10-02) |
| June 6, 2008 | CCOI | S | 1,250 | $14.64 | $18,300 | 50,000 Direct | -2.44% | Disposed | -42.2% (price as of 2026-10-02) |
| June 6, 2008 | CCOI | M | 1,250 | $4.88 | $6,100 | 51,250 Direct | +2.50% | Acquired | 73.4% (price as of 2026-10-02) |
| March 20, 2008 | CCOI | M | 600 | · | · | 599 Direct | -50.04% | Disposed | (price as of 2026-10-02) |
| March 20, 2008 | CCOI | S 10b5-1 | 600 | $18.64 | $11,184 | 50,000 Direct | -1.19% | Disposed | -54.6% (price as of 2026-10-02) |
| March 20, 2008 | CCOI | M | 600 | · | · | 50,600 Direct | +1.20% | Acquired | (price as of 2026-10-02) |
| Jan. 1, 2008 | CCOI | A | 20,000 | · | · | 50,000 Direct | +66.67% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2007 | CCOI | M | 600 | · | · | 1,199 Direct | -33.35% | Disposed | (price as of 2026-10-02) |
| Dec. 20, 2007 | CCOI | S 10b5-1 | 600 | $22.80 | $13,680 | 30,000 Direct | -1.96% | Disposed | -62.9% (price as of 2026-10-02) |
| Dec. 20, 2007 | CCOI | M | 600 | · | · | 30,600 Direct | +2.00% | Acquired | (price as of 2026-10-02) |
| Dec. 13, 2007 | CCOI | M | 625 | · | · | 4,375 Direct | -12.50% | Disposed | (price as of 2026-10-02) |
| Dec. 13, 2007 | CCOI | M | 216 | · | · | 1,799 Direct | -10.72% | Disposed | (price as of 2026-10-02) |
| Dec. 13, 2007 | CCOI | S | 216 | $21.95 | $4,741 | 30,000 Direct | -0.71% | Disposed | -61.5% (price as of 2026-10-02) |
| Dec. 13, 2007 | CCOI | S | 625 | $21.97 | $13,731 | 30,216 Direct | -2.03% | Disposed | -61.5% (price as of 2026-10-02) |
| Dec. 13, 2007 | CCOI | M | 625 | $4.88 | $3,050 | 30,841 Direct | +2.07% | Acquired | 73.4% (price as of 2026-10-02) |
| Dec. 13, 2007 | CCOI | M | 216 | · | · | 30,216 Direct | +0.72% | Acquired | (price as of 2026-10-02) |
| Sept. 20, 2007 | CCOI | M | 600 | · | · | 2,015 Direct | -22.94% | Disposed | (price as of 2026-10-02) |
| Sept. 20, 2007 | CCOI | S 10b5-1 | 600 | $25.24 | $15,144 | 30,000 Direct | -1.96% | Disposed | -66.5% (price as of 2026-10-02) |
| Sept. 20, 2007 | CCOI | M | 600 | · | · | 30,600 Direct | +2.00% | Acquired | (price as of 2026-10-02) |
| Aug. 20, 2007 | CCOI | M | 625 | · | · | 5,000 Direct | -11.11% | Disposed | (price as of 2026-10-02) |
| Aug. 20, 2007 | CCOI | S | 625 | $24.78 | $15,488 | 30,000 Direct | -2.04% | Disposed | -65.9% (price as of 2026-10-02) |
| Aug. 20, 2007 | CCOI | M | 625 | $4.88 | $3,050 | 30,625 Direct | +2.08% | Acquired | 73.4% (price as of 2026-10-02) |
| June 21, 2007 | CCOI | M | 600 | · | · | 2,615 Direct | -18.66% | Disposed | (price as of 2026-10-02) |
| June 21, 2007 | CCOI | S 10b5-1 | 600 | $29.29 | $17,574 | 30,000 Direct | -1.96% | Disposed | -71.1% (price as of 2026-10-02) |
| June 21, 2007 | CCOI | M | 600 | · | · | 30,600 Direct | +2.00% | Acquired | (price as of 2026-10-02) |
| June 8, 2007 | CCOI | M | 625 | · | · | 5,625 Direct | -10.00% | Disposed | (price as of 2026-10-02) |
| June 8, 2007 | CCOI | S | 625 | $25.77 | $16,106 | 30,000 Direct | -2.04% | Disposed | -67.2% (price as of 2026-10-02) |
| June 8, 2007 | CCOI | M | 625 | $4.88 | $3,050 | 30,625 Direct | +2.08% | Acquired | 73.4% (price as of 2026-10-02) |
| April 30, 2007 | CCOI | A | 20,000 | · | · | 30,000 Direct | +200.00% | Acquired | (price as of 2026-10-02) |
| March 20, 2007 | CCOI | M | 3,750 | · | · | 6,250 Direct | -37.50% | Disposed | (price as of 2026-10-02) |
| March 20, 2007 | CCOI | M | 600 | · | · | 3,215 Direct | -15.73% | Disposed | (price as of 2026-10-02) |
| March 20, 2007 | CCOI | S 10b5-1 | 3,750 | $23.80 | $89,250 | 10,000 Direct | -27.27% | Disposed | -64.5% (price as of 2026-10-02) |
| March 20, 2007 | CCOI | S 10b5-1 | 600 | $23.28 | $13,968 | 13,750 Direct | -4.18% | Disposed | -63.7% (price as of 2026-10-02) |
| March 20, 2007 | CCOI | M | 3,750 | $4.88 | $18,300 | 14,350 Direct | +35.38% | Acquired | 73.4% (price as of 2026-10-02) |
| March 20, 2007 | CCOI | M | 600 | · | · | 10,600 Direct | +6.00% | Acquired | (price as of 2026-10-02) |
| Dec. 20, 2006 | CCOI | M | 600 | · | · | 3,815 Direct | -13.59% | Disposed | (price as of 2026-10-02) |
| Dec. 20, 2006 | CCOI | S 10b5-1 | 600 | $15.55 | $9,330 | 10,000 Direct | -5.66% | Disposed | -45.6% (price as of 2026-10-02) |
| Dec. 20, 2006 | CCOI | M | 600 | · | · | 10,600 Direct | +6.00% | Acquired | (price as of 2026-10-02) |
| Oct. 16, 2006 | CCOI | A | 10,000 | · | · | 10,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 26, 2006 | CCOI | S 10b5-1 | 600 | $10.57 | $6,342 | 0 Direct | -100.00% | Disposed | -20.0% (price as of 2026-10-02) |
| Sept. 25, 2006 | CCOI | M 10b5-1 | 600 | · | · | 4,415 Direct | -11.96% | Disposed | (price as of 2026-10-02) |
| Sept. 25, 2006 | CCOI | S 10b5-1 | 1,691 | $10.57 | $17,874 | 600 Direct | -73.81% | Disposed | -20.0% (price as of 2026-10-02) |
| Sept. 25, 2006 | CCOI | M 10b5-1 | 600 | · | · | 2,280 Direct | +35.71% | Acquired | (price as of 2026-10-02) |
| June 20, 2006 | CCOI | M | 600 | · | · | 5,015 Direct | -10.69% | Disposed | (price as of 2026-10-02) |
| June 20, 2006 | CCOI | S 10b5-1 | 500 | $8.30 | $4,150 | 1,680 Direct | -22.94% | Disposed | 1.9% (price as of 2026-10-02) |
| June 20, 2006 | CCOI | S 10b5-1 | 1,500 | $8.30 | $12,450 | 2,180 Direct | -40.76% | Disposed | 1.9% (price as of 2026-10-02) |
| June 20, 2006 | CCOI | M | 600 | · | · | 3,680 Direct | +19.48% | Acquired | (price as of 2026-10-02) |
| March 20, 2006 | CCOI | X | 4,000 | · | · | 5,615 Direct | -41.60% | Disposed | (price as of 2026-10-02) |
| March 20, 2006 | CCOI | S 10b5-1 | 5,400 | $9.11 | $49,194 | 3,080 Direct | -63.68% | Disposed | -7.1% (price as of 2026-10-02) |
| March 20, 2006 | CCOI | X | 4,000 | · | · | 8,480 Direct | +89.29% | Acquired | (price as of 2026-10-02) |
| Dec. 8, 2005 | CCOI | S | 9,746 | $5.88 | $57,306 | 4,481 Direct | -68.50% | Disposed | 43.9% (price as of 2026-10-02) |
| Dec. 7, 2005 | CCOI | S | 9,735 | $5.77 | $56,171 | 14,227 Direct | -40.63% | Disposed | 46.6% (price as of 2026-10-02) |
| Oct. 26, 2005 | CCOI | A | 10,000 | · | · | 19,615 Direct | +104.00% | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2005 | CCOI | C | 192,307 | · | · | 192,307 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 15, 2005 | CCOI | C | 250 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2005 | CCOI | C | 632 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Feb. 15, 2005 | CCOI | C | 479,230 | · | · | 479,230 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 8, 2004 | CCOI | A | 250 | · | · | 250 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 10, 2003 | CCOI | J | 623 | · | · | 623 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 10, 2003 | CCOI | J | 949 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 10, 2003 | CCOI | J | 2,847 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 10, 2003 | CCOI | J | 17,500 | · | · | 0 Direct | -100.00% | Disposed | (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 |
|---|---|---|---|---|---|---|---|
| Dec. 2, 2011 | CCOI | Options to purchase common stock | common stock | $4.88 | Oct. 26, 2016 | 3,125 | Disposed |
| June 20, 2008 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 599 | Disposed |
| June 6, 2008 | CCOI | Option to purchase common stock | common stock | $4.88 | Oct. 26, 2015 | 1,250 | Disposed |
| March 20, 2008 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 600 | Disposed |
| Dec. 20, 2007 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 600 | Disposed |
| Dec. 13, 2007 | CCOI | Option to purchase common stock | common stock | $4.88 | Oct. 26, 2015 | 625 | Disposed |
| Dec. 13, 2007 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 216 | Disposed |
| Sept. 20, 2007 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 600 | Disposed |
| Aug. 20, 2007 | CCOI | Option to purchase common stock | common stock | $4.88 | Oct. 26, 2015 | 625 | Disposed |
| June 21, 2007 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 600 | Disposed |
| June 8, 2007 | CCOI | Option to purchase common stock | common stock | $4.88 | Oct. 26, 2015 | 625 | Disposed |
| March 20, 2007 | CCOI | Option to purchase common stock | common stock | $4.88 | Oct. 26, 2015 | 3,750 | Disposed |
| March 20, 2007 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 600 | Disposed |
| Dec. 20, 2006 | CCOI | Option to purchase common stock | common stock | $0.00 | Sept. 8, 2014 | 600 | Disposed |
| Sept. 25, 2006 | CCOI | Option to purchase common stock | common stock | · | Sept. 8, 2014 | 600 | Disposed |
| June 20, 2006 | CCOI | Option to purchase common stock | common stock | · | Sept. 8, 2014 | 600 | Disposed |
| March 20, 2006 | CCOI | Option to purchase common stock | common stock | · | Sept. 8, 2014 | 4,000 | Disposed |
| Oct. 26, 2005 | CCOI | Option to purchase common stock | common stock | · | Oct. 26, 2015 | 10,000 | Acquired |
| Feb. 15, 2005 | CCOI | Option to purchase common stock [F2] | common stock [F2] | $0.00 | Sept. 8, 2014 | 192,307 | Acquired |
| Feb. 15, 2005 | CCOI | Option to purchase Series H Convertible Preferred Stock [F2] | common stock [F2] | $0.01 | Sept. 8, 2014 | 250 | Disposed |
| Feb. 15, 2005 | CCOI | Series H Convertible Preferred Stock [F1] | common stock [F1] | $0.00 | · | 632 | Disposed |
| Sept. 8, 2004 | CCOI | Options to purchase Series H Convertible Preferred Stock [F1] | Common Stock | $0.01 | Sept. 8, 2014 | 250 | Acquired |
| Oct. 10, 2003 | CCOI | Series H Convertible Preferred Stock | Common Stock | · | · | 623 | Acquired |
| Oct. 10, 2003 | CCOI | Option/right to buy [F1] | Common Stock | $2.00 | Dec. 1, 2011 | 949 | Disposed |
| Oct. 10, 2003 | CCOI | Option/right to buy [F1] | Common Stock | $2.00 | Dec. 1, 2011 | 2,847 | Disposed |
| Oct. 10, 2003 | CCOI | Option/right to buy [F1] | Common Stock | $15.00 | Oct. 3, 2010 | 17,500 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
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 |
|---|---|---|---|---|---|---|---|---|
| 2000 | · | · | · | · | · | · | · | · |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.