Richard M Libenson
Insider
First SEC filing: Oct. 1, 2018 · Latest: Oct. 1, 2018
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 |
|---|---|---|---|---|---|---|---|---|---|
| Oct. 22, 2021 | COST | A | 561 | · | · | 3,561 Direct | +18.70% | Acquired | (price as of 2026-10-05) |
| Dec. 11, 2020 | COST | A | 34 | · | · | 3,000 Direct | +1.15% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2020 | COST | A | 719 | · | · | 2,966 Direct | +32.00% | Acquired | (price as of 2026-10-05) |
| Oct. 30, 2019 | COST | S | 1,703 | $298.25 | $507,920 | 38,682 Indirect | -4.22% | Disposed | 209.6% (price as of 2026-10-05) |
| Oct. 25, 2019 | COST | J | 1,703 | · | · | 40,385 Indirect | +4.40% | Acquired | (price as of 2026-10-05) |
| Oct. 25, 2019 | COST | J | 1,703 | · | · | 2,247 Direct | -43.11% | Disposed | (price as of 2026-10-05) |
| Oct. 22, 2019 | COST | A | 901 | · | · | 3,950 Direct | +29.55% | Acquired | (price as of 2026-10-05) |
| Oct. 25, 2018 | COST | S | 2,049 | $224.00 | $458,976 | 38,682 Indirect | -5.03% | Disposed | 312.3% (price as of 2026-10-05) |
| Oct. 22, 2018 | COST | J | 2,049 | · | · | 40,731 Indirect | +5.30% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2018 | COST | J | 2,049 | · | · | 3,049 Direct | -40.19% | Disposed | (price as of 2026-10-05) |
| Oct. 22, 2018 | COST | A | 1,179 | · | · | 5,098 Direct | +30.08% | Acquired | (price as of 2026-10-05) |
| Dec. 18, 2017 | COST | S | 20,000 | $193.03 | $3,860,600 | 38,317 Indirect | -34.30% | Disposed | 378.4% (price as of 2026-10-05) |
| Oct. 24, 2017 | COST | S | 2,350 | $162.00 | $380,700 | 36,928 Indirect | -5.98% | Disposed | 470.1% (price as of 2026-10-05) |
| Oct. 24, 2017 | COST | J | 2,350 | · | · | 39,278 Indirect | +6.36% | Acquired | (price as of 2026-10-05) |
| Oct. 24, 2017 | COST | J | 2,350 | · | · | 4,109 Direct | -36.38% | Disposed | (price as of 2026-10-05) |
| Oct. 24, 2017 | COST | S | 2,350 | $162.00 | $380,700 | 4,109 Direct | -36.38% | Disposed | 470.1% (price as of 2026-10-05) |
| Oct. 22, 2017 | COST | A | 1,680 | · | · | 6,269 Direct | +36.61% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2017 | COST | A | 1,870 | · | · | 6,459 Direct | +40.75% | Acquired | (price as of 2026-10-05) |
| May 24, 2017 | COST | A | 140 | $173.01 | $24,221 | 4,589 Direct | +3.15% | Acquired | 433.8% (price as of 2026-10-05) |
| Oct. 25, 2016 | COST | J | 2,385 | · | · | 60,702 Indirect | +4.09% | Acquired | (price as of 2026-10-05) |
| Oct. 25, 2016 | COST | J | 2,385 | · | · | 4,449 Direct | -34.90% | Disposed | (price as of 2026-10-05) |
| Oct. 25, 2016 | COST | S | 2,385 | $151.00 | $360,135 | 58,317 Indirect | -3.93% | Disposed | 511.6% (price as of 2026-10-05) |
| Oct. 22, 2016 | COST | A | 2,182 | · | · | 6,834 Direct | +46.90% | Acquired | (price as of 2026-10-05) |
| Oct. 26, 2015 | COST | S | 2,790 | $154.00 | $429,660 | 36,488 Indirect | -7.10% | Disposed | 499.7% (price as of 2026-10-05) |
| Oct. 23, 2015 | COST | S | 5,000 | $155.50 | $777,500 | 58,317 Indirect | -7.90% | Disposed | 493.9% (price as of 2026-10-05) |
| Oct. 22, 2015 | COST | A | 2,150 | · | · | 7,442 Direct | +40.63% | Acquired | (price as of 2026-10-05) |
| Feb. 27, 2015 | COST | A | 216 | $146.96 | $31,743 | 5,292 Direct | +4.26% | Acquired | 528.4% (price as of 2026-10-05) |
| Oct. 24, 2014 | COST | S | 20,889 | $129.67 | $2,708,677 | 39,278 Indirect | -34.72% | Disposed | 612.2% (price as of 2026-10-05) |
| Oct. 24, 2014 | COST | J | 20,889 | · | · | 60,167 Indirect | +53.18% | Acquired | (price as of 2026-10-05) |
| Oct. 24, 2014 | COST | J | 20,889 | · | · | 5,076 Direct | -80.45% | Disposed | (price as of 2026-10-05) |
| Oct. 22, 2014 | COST | A | 2,400 | · | · | 25,965 Direct | +10.18% | Acquired | (price as of 2026-10-05) |
| Oct. 28, 2013 | COST | S | 11,376 | $116.65 | $1,327,010 | 39,278 Indirect | -22.46% | Disposed | 691.7% (price as of 2026-10-05) |
| Oct. 24, 2013 | COST | S | 9,791 | $116.67 | $1,142,316 | 50,654 Indirect | -16.20% | Disposed | 691.6% (price as of 2026-10-05) |
| Oct. 24, 2013 | COST | J | 21,167 | · | · | 60,445 Indirect | +53.89% | Acquired | (price as of 2026-10-05) |
| Oct. 24, 2013 | COST | J | 21,167 | · | · | 23,565 Direct | -47.32% | Disposed | (price as of 2026-10-05) |
| Oct. 22, 2013 | COST | A | 2,400 | · | · | 44,732 Direct | +5.67% | Acquired | (price as of 2026-10-05) |
| Dec. 20, 2012 | COST | S | 6,000 | $99.00 | $594,000 | 39,278 Indirect | -13.25% | Disposed | 832.8% (price as of 2026-10-05) |
| Dec. 12, 2012 | COST | A | 2,999 | $98.31 | $294,832 | 42,332 Direct | +7.62% | Acquired | 839.4% (price as of 2026-10-05) |
| Oct. 24, 2012 | COST | S | 19,667 | $94.83 | $1,865,022 | 45,278 Indirect | -30.28% | Disposed | 873.9% (price as of 2026-10-05) |
| Oct. 24, 2012 | COST | J | 19,667 | · | · | 64,945 Indirect | +43.44% | Acquired | (price as of 2026-10-05) |
| Oct. 24, 2012 | COST | J | 19,667 | · | · | 39,333 Direct | -33.33% | Disposed | (price as of 2026-10-05) |
| Oct. 24, 2012 | COST | S | 19,667 | $94.83 | $1,865,022 | 25,611 Indirect | -43.44% | Disposed | 873.9% (price as of 2026-10-05) |
| Oct. 22, 2012 | COST | A | 3,000 | · | · | 59,000 Direct | +5.36% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2012 | COST | A | 3,000 | · | · | 59,000 Direct | +5.36% | Acquired | (price as of 2026-10-05) |
| April 13, 2012 | COST | A | 50,000 | · | · | 56,000 Direct | +833.33% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2011 | COST | A | 3,000 | · | · | 12,000 Direct | +33.33% | Acquired | (price as of 2026-10-05) |
| April 11, 2011 | COST | S | 7,525 | $76.16 | $573,104 | 39,278 Indirect | -16.08% | Disposed | 1112.6% (price as of 2026-10-05) |
| April 11, 2011 | COST | S | 7,715 | · | · | 63,317 Indirect | -10.86% | Disposed | (price as of 2026-10-05) |
| Oct. 22, 2010 | COST | A | 3,000 | · | · | 9,000 Direct | +50.00% | Acquired | (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $37.35 | $448,200 | 0 Direct | -100.00% | Disposed | 2372.6% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $30.41 | $364,920 | 0 Direct | -100.00% | Disposed | 2936.9% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $39.65 | $475,800 | 0 Direct | -100.00% | Disposed | 2229.2% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $36.19 | $434,280 | 0 Direct | -100.00% | Disposed | 2451.9% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | S | 48,000 | · | · | 6,000 Direct | -88.89% | Disposed | (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $37.35 | $448,200 | 54,000 Direct | +28.57% | Acquired | 2372.6% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $30.41 | $364,920 | 42,000 Direct | +40.00% | Acquired | 2936.9% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $39.65 | $475,800 | 30,000 Direct | +66.67% | Acquired | 2229.2% (price as of 2026-10-05) |
| Oct. 8, 2010 | COST | M | 12,000 | $36.19 | $434,280 | 18,000 Direct | +200.00% | Acquired | 2451.9% (price as of 2026-10-05) |
| Oct. 22, 2009 | COST | A | 3,000 | · | · | 12,000 Direct | +33.33% | Acquired | (price as of 2026-10-05) |
| Oct. 22, 2008 | COST | A | 3,000 | · | · | 9,000 Direct | +50.00% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $43.79 | $525,480 | 46,025 Direct | +35.27% | Acquired | 2009.0% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $52.50 | $630,000 | 34,025 Direct | +54.48% | Acquired | 1659.1% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 16,000 | $44.97 | $719,520 | 22,025 Direct | +265.56% | Acquired | 1953.6% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $43.79 | $525,480 | 0 Direct | -100.00% | Disposed | 2009.0% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $52.50 | $630,000 | 0 Direct | -100.00% | Disposed | 1659.1% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 16,000 | $44.97 | $719,520 | 0 Direct | -100.00% | Disposed | 1953.6% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | S | 40,000 | · | · | 6,025 Direct | -86.91% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $43.79 | $525,480 | 0 Direct | -100.00% | Disposed | 2009.0% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $52.50 | $630,000 | 0 Direct | -100.00% | Disposed | 1659.1% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 16,000 | $44.97 | $719,520 | 0 Direct | -100.00% | Disposed | 1953.6% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | J | 25 | · | · | 71,057 Indirect | +0.04% | Acquired | (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | J | 25 | · | · | 46,778 Direct | -0.05% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | S | 40,000 | · | · | 46,803 Direct | -46.08% | Disposed | (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $43.79 | $525,480 | 86,803 Direct | +16.04% | Acquired | 2009.0% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 12,000 | $52.50 | $630,000 | 74,803 Direct | +19.11% | Acquired | 1659.1% (price as of 2026-10-05) |
| Feb. 15, 2008 | COST | M | 16,000 | $44.97 | $719,520 | 62,803 Direct | +34.19% | Acquired | 1953.6% (price as of 2026-10-05) |
| Jan. 2, 2008 | COST | J | 25 | · | · | 40,803 Indirect | +0.06% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2008 | COST | J | 25 | · | · | 6,000 Direct | -0.41% | Disposed | (price as of 2026-10-05) |
| Oct. 17, 2007 | COST | A | 3,000 | · | · | 46,803 Direct | +6.85% | Acquired | (price as of 2026-10-05) |
| Oct. 23, 2006 | COST | A | 25 | · | · | 43,803 Direct | +0.06% | Acquired | (price as of 2026-10-05) |
| Oct. 19, 2006 | COST | A | 3,000 | · | · | 43,780 Direct | +7.36% | Acquired | (price as of 2026-10-05) |
| June 12, 2006 | COST | A | 1,500 | · | · | 40,780 Direct | +3.82% | Acquired | (price as of 2026-10-05) |
| March 29, 2006 | COST | S | 19,000 | $54.54 | $1,036,260 | 71,632 Indirect | -20.96% | Disposed | 1593.3% (price as of 2026-10-05) |
| April 1, 2005 | COST | A | 12,000 | · | · | 12,000 Direct | · | Acquired | (price as of 2026-10-05) |
| April 16, 2004 | COST | S | 35,870 | $38.03 | $1,364,136 | 93,532 Indirect | -27.72% | Disposed | 2328.4% (price as of 2026-10-05) |
| April 16, 2004 | COST | S | 2,900 | $38.04 | $110,316 | 90,632 Indirect | -3.10% | Disposed | 2327.8% (price as of 2026-10-05) |
| April 6, 2004 | COST | S | 34,230 | $38.03 | $1,301,767 | 129,402 Indirect | -20.92% | Disposed | 2328.4% (price as of 2026-10-05) |
| April 1, 2004 | COST | A | 12,000 | · | · | 12,000 Direct | · | Acquired | (price as of 2026-10-05) |
| April 6, 2003 | COST | S | 34,230 | $38.03 | $1,301,767 | 129,402 Indirect | -20.92% | Disposed | 2328.4% (price as of 2026-10-05) |
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 |
|---|---|---|---|---|---|---|---|
| Oct. 8, 2010 | COST | Stock Option | Common Stock | $37.35 | April 1, 2014 | 12,000 | Disposed |
| Oct. 8, 2010 | COST | Stock Option | Common Stock | $30.41 | April 1, 2013 | 12,000 | Disposed |
| Oct. 8, 2010 | COST | Stock Option | Common Stock | $39.65 | April 1, 2012 | 12,000 | Disposed |
| Oct. 8, 2010 | COST | Stock Option | Common Stock | $36.19 | April 2, 2011 | 12,000 | Disposed |
| Feb. 15, 2008 | COST | Stock Option | Common Stock | $43.79 | April 1, 2015 | 12,000 | Disposed |
| Feb. 15, 2008 | COST | Stock Option | Common Stock | $52.50 | April 3, 2010 | 12,000 | Disposed |
| Feb. 15, 2008 | COST | Stock Option | Common Stock | $44.97 | April 1, 2009 | 16,000 | Disposed |
| Feb. 15, 2008 | COST | Stock Option | Common Stock | $43.79 | April 1, 2015 | 12,000 | Disposed |
| Feb. 15, 2008 | COST | Stock Option | Common Stock | $52.50 | April 3, 2010 | 12,000 | Disposed |
| Feb. 15, 2008 | COST | Stock Option | Common Stock | $44.97 | April 1, 2009 | 16,000 | Disposed |
| April 1, 2005 | COST | Stock Option | Common Stock | $43.79 | April 1, 2015 | 12,000 | Acquired |
| April 1, 2004 | COST | Stock Option | Common Stock | $37.35 | March 31, 2014 | 12,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).