Thomas Stemberg
First SEC filing: July 26, 2007 · Latest: Sept. 27, 2011
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 |
|---|---|---|---|---|---|---|---|---|---|
| July 22, 2015 | KMX | M | 7,610 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| July 22, 2015 | KMX | S | 7,610 | $66.38 | $505,152 | 17,083 Direct | -30.82% | Disposed | -17.3% (price as of 2026-10-02) |
| July 22, 2015 | KMX | M | 7,610 | $14.49 | $110,269 | 24,693 Direct | +44.55% | Acquired | 279.0% (price as of 2026-10-02) |
| June 25, 2015 | KMX | A | 1,907 | · | · | 17,083 Direct | +12.57% | Acquired | (price as of 2026-10-02) |
| June 11, 2015 | LULU | A | 1,892 | · | · | 5,160 Direct | +57.89% | Acquired | (price as of 2026-10-02) |
| April 29, 2015 | KMX | S | 800 | $68.66 | $54,928 | 13,967 Indirect | -5.42% | Disposed | -20.0% (price as of 2026-10-02) |
| March 30, 2015 | LULU | M | 5,310 | $6.92 | $36,745 | 8,578 Direct | +162.48% | Acquired | 1265.0% (price as of 2026-10-02) |
| March 30, 2015 | LULU | S | 5,310 | $65.11 | $345,734 | 3,268 Direct | -61.90% | Disposed | 45.1% (price as of 2026-10-02) |
| March 30, 2015 | LULU | M | 5,310 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 28, 2015 | KMX | S | 915 | $62.56 | $57,242 | 295 Indirect | -75.62% | Disposed | -12.2% (price as of 2026-10-02) |
| Nov. 4, 2014 | KMX | M | 9,091 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Nov. 4, 2014 | KMX | S | 9,091 | $55.12 | $501,096 | 9,576 Direct | -48.70% | Disposed | -0.4% (price as of 2026-10-02) |
| Nov. 4, 2014 | KMX | M | 9,091 | $14.86 | $135,092 | 18,667 Direct | +94.94% | Acquired | 269.6% (price as of 2026-10-02) |
| June 16, 2014 | LULU | A | 3,268 | · | · | 4,979 Direct | +191.00% | Acquired | (price as of 2026-10-02) |
| April 15, 2014 | KMX | M | 5,285 | $25.67 | $135,666 | 32,688 Direct | +19.29% | Acquired | 113.9% (price as of 2026-10-02) |
| April 15, 2014 | KMX | M | 5,285 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| April 15, 2014 | KMX | S | 5,285 | $42.63 | $225,300 | 27,403 Direct | -16.17% | Disposed | 28.8% (price as of 2026-10-02) |
| June 27, 2013 | KMX | A | 2,870 | · | · | 2,870 Direct | · | Acquired | (price as of 2026-10-02) |
| June 27, 2013 | KMX | A | 1,071 | · | · | 27,403 Direct | +4.07% | Acquired | (price as of 2026-10-02) |
| June 12, 2013 | LULU | A | 1,711 | · | · | 17,937 Direct | +10.54% | Acquired | (price as of 2026-10-02) |
| Dec. 31, 2012 | KMX | M | 6,804 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2012 | KMX | M | 7,598 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Dec. 31, 2012 | KMX | S | 13,402 | $36.72 | $492,121 | 26,332 Direct | -33.73% | Disposed | 49.6% (price as of 2026-10-02) |
| Dec. 31, 2012 | KMX | M | 6,804 | $17.44 | $118,662 | 39,734 Direct | +20.66% | Acquired | 214.9% (price as of 2026-10-02) |
| Dec. 31, 2012 | KMX | M | 7,598 | $13.19 | $100,218 | 32,930 Direct | +29.99% | Acquired | 316.4% (price as of 2026-10-02) |
| Dec. 24, 2012 | KMX | G | 8,000 | · | · | 25,332 Direct | -24.00% | Disposed | (price as of 2026-10-02) |
| Dec. 17, 2012 | LULU | G | 2,500 | · | · | 16,226 Direct | -13.35% | Disposed | (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 4,308 | $6.92 | $29,811 | 22,034 Direct | +24.30% | Acquired | 1265.0% (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | S | 4,308 | $76.54 | $329,734 | 17,726 Direct | -19.55% | Disposed | 23.4% (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 1,000 | $6.92 | $6,920 | 18,726 Direct | +5.64% | Acquired | 1265.0% (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 4,308 | · | · | 6,310 Direct | -40.57% | Disposed | (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 1,000 | · | · | 5,310 Direct | -15.85% | Disposed | (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 4,308 | $6.92 | $29,811 | 22,034 Direct | +24.30% | Acquired | 1265.0% (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | S | 4,308 | $76.54 | $329,734 | 17,726 Direct | -19.55% | Disposed | 23.4% (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 1,000 | $6.92 | $6,920 | 18,726 Direct | +5.64% | Acquired | 1265.0% (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 4,308 | · | · | 6,310 Direct | -40.57% | Disposed | (price as of 2026-10-02) |
| Sept. 12, 2012 | LULU | M | 1,000 | · | · | 5,310 Direct | -15.85% | Disposed | (price as of 2026-10-02) |
| June 28, 2012 | KMX | A | 4,897 | · | · | 4,897 Direct | · | Acquired | (price as of 2026-10-02) |
| June 28, 2012 | KMX | P | 2,500 | $25.09 | $62,725 | 33,332 Direct | +8.11% | Acquired | 118.9% (price as of 2026-10-02) |
| June 28, 2012 | KMX | A | 1,990 | · | · | 30,832 Direct | +6.90% | Acquired | (price as of 2026-10-02) |
| June 11, 2012 | LULU | A | 1,740 | · | · | 17,726 Direct | +10.88% | Acquired | (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 7,722 | $9.00 | $69,498 | 22,708 Direct | +51.53% | Acquired | 949.6% (price as of 2026-10-02) |
| March 27, 2012 | LULU | S | 7,722 | $74.80 | $577,606 | 14,986 Direct | -34.01% | Disposed | 26.3% (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 2,962 | $14.29 | $42,327 | 17,948 Direct | +19.77% | Acquired | 561.0% (price as of 2026-10-02) |
| March 27, 2012 | LULU | S | 2,962 | $74.80 | $221,558 | 14,986 Direct | -16.50% | Disposed | 26.3% (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 4,308 | $6.92 | $29,811 | 19,294 Direct | +28.75% | Acquired | 1265.0% (price as of 2026-10-02) |
| March 27, 2012 | LULU | S | 4,308 | $74.80 | $322,238 | 14,986 Direct | -22.33% | Disposed | 26.3% (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 1,902 | $21.22 | $40,360 | 16,888 Direct | +12.69% | Acquired | 345.1% (price as of 2026-10-02) |
| March 27, 2012 | LULU | S | 1,902 | $74.80 | $142,270 | 14,986 Direct | -11.26% | Disposed | 26.3% (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 1,000 | $6.92 | $6,920 | 15,986 Direct | +6.67% | Acquired | 1265.0% (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 7,722 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 2,962 | · | · | 2,964 Direct | -49.98% | Disposed | (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 5,308 | · | · | 10,618 Direct | -33.33% | Disposed | (price as of 2026-10-02) |
| March 27, 2012 | LULU | M | 1,902 | · | · | 5,712 Direct | -24.98% | Disposed | (price as of 2026-10-02) |
| Jan. 9, 2012 | KMX | M | 6,764 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Jan. 9, 2012 | KMX | S | 5,764 | $30.19 | $174,015 | 28,842 Direct | -16.66% | Disposed | 81.9% (price as of 2026-10-02) |
| Jan. 9, 2012 | KMX | M | 6,764 | $10.75 | $72,713 | 34,606 Direct | +24.29% | Acquired | 410.9% (price as of 2026-10-02) |
| Dec. 5, 2011 | LULU | A | 1,214 | · | · | 1,214 Direct | · | Acquired | (price as of 2026-10-02) |
| Sept. 19, 2011 | LULU | S | 13,000 | $60.86 | $791,180 | 10,000 Indirect | -56.52% | Disposed | 55.2% (price as of 2026-10-02) |
| Sept. 19, 2011 | LULU | S | 10,000 | $60.82 | $608,200 | 0 Indirect | -100.00% | Disposed | 55.3% (price as of 2026-10-02) |
| June 30, 2011 | KMX | A | 3,621 | · | · | 3,621 Direct | · | Acquired | (price as of 2026-10-02) |
| June 30, 2011 | KMX | A | 1,510 | · | · | 27,842 Direct | +5.73% | Acquired | (price as of 2026-10-02) |
| June 14, 2011 | LULU | A | 601 | · | · | 12,493 Direct | +5.05% | Acquired | (price as of 2026-10-02) |
| June 14, 2011 | LULU | A | 607 | · | · | 607 Direct | · | Acquired | (price as of 2026-10-02) |
| May 19, 2011 | KMX | S | 50 | $30.09 | $1,504 | 1,210 Indirect | -3.97% | Disposed | 82.5% (price as of 2026-10-02) |
| May 19, 2011 | KMX | S | 50 | $30.09 | $1,504 | 330 Indirect | -13.16% | Disposed | 82.5% (price as of 2026-10-02) |
| May 19, 2011 | KMX | S | 50 | $30.09 | $1,504 | 835 Indirect | -5.65% | Disposed | 82.5% (price as of 2026-10-02) |
| May 3, 2011 | KMX | S | 40 | $34.28 | $1,371 | 1,260 Indirect | -3.08% | Disposed | 60.2% (price as of 2026-10-02) |
| May 3, 2011 | KMX | S | 20 | $34.28 | $686 | 380 Indirect | -5.00% | Disposed | 60.2% (price as of 2026-10-02) |
| May 3, 2011 | KMX | S | 40 | $34.28 | $1,371 | 885 Indirect | -4.32% | Disposed | 60.2% (price as of 2026-10-02) |
| April 28, 2011 | LULU | G | 200 | · | · | 11,892 Direct | -1.65% | Disposed | (price as of 2026-10-02) |
| Oct. 29, 2010 | KMX | M | 3,598 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| Oct. 29, 2010 | KMX | S | 3,598 | $30.01 | $107,976 | 26,332 Direct | -12.02% | Disposed | 83.0% (price as of 2026-10-02) |
| Oct. 29, 2010 | KMX | M | 3,598 | $15.72 | $56,561 | 29,930 Direct | +13.66% | Acquired | 249.4% (price as of 2026-10-02) |
| July 1, 2010 | KMX | A | 5,787 | · | · | 5,787 Direct | · | Acquired | (price as of 2026-10-02) |
| July 1, 2010 | KMX | A | 2,503 | · | · | 26,332 Direct | +10.50% | Acquired | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,860 | $18.00 | $51,480 | 13,952 Direct | +25.78% | Acquired | 949.6% (price as of 2026-10-02) |
| June 16, 2010 | LULU | S | 2,860 | $44.00 | $125,840 | 11,092 Direct | -20.50% | Disposed | 329.4% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,654 | $13.83 | $36,705 | 13,746 Direct | +23.93% | Acquired | 1266.0% (price as of 2026-10-02) |
| June 16, 2010 | LULU | S | 2,654 | $44.00 | $116,776 | 11,092 Direct | -19.31% | Disposed | 329.4% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,963 | $28.58 | $84,683 | 14,055 Direct | +26.71% | Acquired | 561.0% (price as of 2026-10-02) |
| June 16, 2010 | LULU | S | 2,963 | $44.00 | $130,372 | 11,092 Direct | -21.08% | Disposed | 329.4% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 1,000 | $18.00 | $18,000 | 12,092 Direct | +9.02% | Acquired | 949.6% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,860 | · | · | 4,861 Direct | -37.04% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,654 | · | · | 7,963 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,963 | · | · | 2,963 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 1,000 | · | · | 3,861 Direct | -20.57% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,860 | $18.00 | $51,480 | 13,245 Direct | +27.54% | Acquired | 949.6% (price as of 2026-10-02) |
| June 16, 2010 | LULU | S | 2,860 | $44.00 | $125,840 | 10,385 Direct | -21.59% | Disposed | 329.4% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,654 | $13.83 | $36,705 | 13,039 Direct | +25.56% | Acquired | 1266.0% (price as of 2026-10-02) |
| June 16, 2010 | LULU | S | 2,654 | $44.00 | $116,776 | 10,385 Direct | -20.35% | Disposed | 329.4% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,963 | $28.58 | $84,683 | 13,348 Direct | +28.53% | Acquired | 561.0% (price as of 2026-10-02) |
| June 16, 2010 | LULU | S | 2,963 | $44.00 | $130,372 | 10,385 Direct | -22.20% | Disposed | 329.4% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 1,000 | $18.00 | $18,000 | 11,385 Direct | +9.63% | Acquired | 949.6% (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,860 | · | · | 4,861 Direct | -37.04% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,654 | · | · | 7,963 Direct | -25.00% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 2,963 | · | · | 2,963 Direct | -50.00% | Disposed | (price as of 2026-10-02) |
| June 16, 2010 | LULU | M | 1,000 | · | · | 3,861 Direct | -20.57% | Disposed | (price as of 2026-10-02) |
| June 14, 2010 | LULU | A | 707 | · | · | 11,092 Direct | +6.81% | Acquired | (price as of 2026-10-02) |
| June 14, 2010 | LULU | A | 3,807 | · | · | 3,807 Direct | · | Acquired | (price as of 2026-10-02) |
Showing latest 100 of 144 transactions
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 |
|---|---|---|---|---|---|---|---|
| July 22, 2015 | KMX | Stock Options (Right to Buy) | Common Stock | $14.49 | June 26, 2016 | 7,610 | Disposed |
| March 30, 2015 | LULU | Stock Option (Right to Buy) | Common Stock | $6.92 | June 15, 2016 | 5,310 | Disposed |
| Nov. 4, 2014 | KMX | Stock Options (Right to Buy) | Common Stock | $14.86 | June 27, 2015 | 9,091 | Disposed |
| April 15, 2014 | KMX | Stock Options (Right to Buy) | Common Stock | $25.67 | June 29, 2014 | 5,285 | Disposed |
| June 27, 2013 | KMX | Stock Options (Right to Buy) | Common Stock | $46.65 | June 27, 2020 | 2,870 | Acquired |
| Dec. 31, 2012 | KMX | Stock Options (Right to Buy) [F3] | Common Stock | $17.44 | June 21, 2013 | 6,804 | Disposed |
| Dec. 31, 2012 | KMX | Stock Options (Right to Buy) [F2] | Common Stock | $13.19 | June 25, 2013 | 7,598 | Disposed |
| Sept. 12, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $6.92 | June 15, 2016 | 4,308 | Disposed |
| Sept. 12, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $6.92 | June 15, 2016 | 1,000 | Disposed |
| Sept. 12, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $6.92 | June 15, 2016 | 4,308 | Disposed |
| Sept. 12, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $6.92 | June 15, 2016 | 1,000 | Disposed |
| June 28, 2012 | KMX | Stock Options (Right to Buy) | Common Stock | $25.12 | June 28, 2019 | 4,897 | Acquired |
| March 27, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $9.00 | July 25, 2018 | 7,722 | Disposed |
| March 27, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $14.29 | June 3, 2018 | 2,962 | Disposed |
| March 27, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $6.92 | June 15, 2016 | 5,308 | Disposed |
| March 27, 2012 | LULU | Stock Option (Right to Buy) | Common Stock | $21.22 | June 14, 2017 | 1,902 | Disposed |
| Jan. 9, 2012 | KMX | Stock Options (Right to Buy) [F2] | Common Stock | $10.75 | July 1, 2012 | 6,764 | Disposed |
| Dec. 5, 2011 | LULU | Stock Option (Right to Buy) | Common Stock | $48.36 | Dec. 5, 2018 | 1,214 | Acquired |
| June 30, 2011 | KMX | Stock Options (Right to Buy) | Common Stock | $33.11 | June 30, 2018 | 3,621 | Acquired |
| June 14, 2011 | LULU | Stock Option (Right to Buy) | Common Stock | $91.50 | June 14, 2018 | 607 | Acquired |
| Oct. 29, 2010 | KMX | Stock Options (Right to Buy) [F2] | Common Stock | $15.72 | Nov. 19, 2011 | 3,598 | Disposed |
| July 1, 2010 | KMX | Stock Options (Right to Buy) | Common Stock | $19.98 | July 1, 2017 | 5,787 | Acquired |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $18.00 | July 25, 2017 | 2,860 | Disposed |
| June 16, 2010 | LULU | Stock option (Right to Buy) | Common Stock | $13.83 | June 15, 2016 | 2,654 | Disposed |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $28.58 | June 3, 2018 | 2,963 | Disposed |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $18.00 | July 25, 2017 | 1,000 | Disposed |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $18.00 | July 25, 2017 | 2,860 | Disposed |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $13.83 | June 15, 2016 | 2,654 | Disposed |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $28.58 | June 3, 2018 | 2,963 | Disposed |
| June 16, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $18.00 | July 25, 2017 | 1,000 | Disposed |
| June 14, 2010 | LULU | Stock Option (Right to Buy) | Common Stock | $42.43 | June 9, 2017 | 3,807 | Acquired |
| June 26, 2009 | KMX | Stock Options (Right to Buy) | Common Stock | $14.49 | June 26, 2016 | 7,610 | Acquired |
| June 15, 2009 | LULU | Stock Option (Right to Buy) | Common Stock | $13.83 | June 15, 2016 | 10,617 | Acquired |
| June 27, 2008 | KMX | Stock Options (Right to Buy) | Common Stock | $14.86 | June 27, 2015 | 9,091 | Acquired |
| June 4, 2008 | LULU | Stock Option (Right to Buy) | Common Stock | $28.58 | June 4, 2018 | 5,926 | Acquired |
| July 26, 2007 | LULU | Stock Option (Right to Buy) | Common Stock | $18.00 | July 25, 2017 | 7,721 | Acquired |
| June 29, 2007 | KMX | Stock Options (Right to Buy) | Common Stock | $25.67 | June 29, 2014 | 5,285 | Acquired |
| July 13, 2006 | KMX | Stock Options (Right to Buy) [F2] | Common Stock | · | July 1, 2012 | 621 | Disposed |
| July 13, 2006 | KMX | Stock Options (Right to Buy) | Common Stock | · | Nov. 22, 2011 | 404 | Disposed |
| July 13, 2006 | KMX | Stock Options (Right to Buy) | Common Stock | · | Nov. 22, 2011 | 405 | Disposed |
| July 13, 2006 | KMX | Stock Options (Right to Buy) | Common Stock | · | Nov. 19, 2011 | 404 | Disposed |
| July 13, 2006 | KMX | Stock Options (Right to Buy) | Common Stock | · | June 23, 2013 | 621 | Disposed |
| July 13, 2006 | KMX | Stock Options (Right to Buy) | Common Stock | · | Nov. 19, 2011 | 405 | Disposed |
| June 21, 2006 | KMX | Stock Options (Right to Buy) | Common Stock | $34.88 | June 21, 2013 | 3,402 | Acquired |
| June 24, 2005 | KMX | Stock Options (Right to buy) [F1] | Common Stock | $26.38 | June 24, 2013 | 3,799 | Acquired |
| June 23, 2005 | KMX | Stock Options (Right to buy) | Common Stock | $26.38 | June 23, 2015 | 3,709 | Acquired |
| May 11, 2005 | KMX | Stock Options (Right to buy) | Common Stock | $21.49 | June 30, 2014 | 1,300 | Acquired |
| May 11, 2005 | KMX | Stock Options (Right to buy) | Common Stock | $21.49 | June 30, 2014 | 1,300 | Disposed |
| June 30, 2004 | KMX | Stock Options (Right to buy) | Common Stock | $21.49 | June 30, 2014 | 4,003 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 3 holdings
Securities held when first becoming an insider, per SEC Form 3.