Steven Sterin
Insider
First SEC filing: June 8, 2026 · Latest: June 8, 2026
Insider at
Insider transactions
0 buys (P)
3 sells (S)
Net: $-247,583
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 |
|---|---|---|---|---|---|---|---|---|---|
| June 5, 2026 | Q | S | 400 | $148.35 | $59,340 | 12,195 Direct | -3.18% | Disposed | -11.3% (price as of 2026-10-05) |
| May 28, 2026 | KOS | A | 62,044 | $2.74 | $170,001 | 393,339 Direct | +18.73% | Acquired | -8.0% (price as of 2026-10-05) |
| May 27, 2026 | KOS | S | 38,636 | $2.73 | $105,476 | 331,295 Direct | -10.44% | Disposed | -7.7% (price as of 2026-10-05) |
| May 26, 2026 | Q | S | 511 | $161.97 | $82,767 | 12,595 Direct | -3.90% | Disposed | -18.8% (price as of 2026-10-05) |
| May 21, 2026 | Q | A | 1,278 | · | · | 13,106 Direct | +10.80% | Acquired | (price as of 2026-10-05) |
| Dec. 3, 2025 | Q | A | 1,000 | · | · | 11,812 Direct | +9.25% | Acquired | (price as of 2026-10-05) |
| Nov. 1, 2025 | Q | J | 10,812 | · | · | 10,812 Direct | · | Acquired | (price as of 2026-10-05) |
| June 5, 2025 | KOS | A | 96,591 | $1.76 | $170,000 | 369,931 Direct | +35.34% | Acquired | 43.2% (price as of 2026-10-05) |
| May 22, 2025 | DD | A | 2,794 | · | · | 21,389 Direct | +15.03% | Acquired | (price as of 2026-10-05) |
| June 6, 2024 | KOS | A | 30,196 | · | · | 273,340 Direct | +12.42% | Acquired | (price as of 2026-10-05) |
| June 5, 2024 | DD | A | 2,109 | · | · | 18,268 Direct | +13.05% | Acquired | (price as of 2026-10-05) |
| June 8, 2023 | KOS | A | 24,964 | · | · | 243,144 Direct | +11.44% | Acquired | (price as of 2026-10-05) |
| May 24, 2023 | DD | A | 2,566 | · | · | 15,858 Direct | +19.30% | Acquired | (price as of 2026-10-05) |
| Aug. 4, 2022 | DD | A | 1,000 | · | · | 13,096 Direct | +8.27% | Acquired | (price as of 2026-10-05) |
| June 9, 2022 | KOS | A | 20,911 | · | · | 218,180 Direct | +10.60% | Acquired | (price as of 2026-10-05) |
| May 26, 2022 | DD | A | 2,524 | $67.37 | $170,042 | 12,030 Direct | +26.55% | Acquired | 54.5% (price as of 2026-10-05) |
| June 9, 2021 | KOS | A | 51,830 | · | · | 197,269 Direct | +35.64% | Acquired | (price as of 2026-10-05) |
| April 28, 2021 | DD | A | 2,207 | $77.05 | $170,049 | 9,352 Direct | +30.89% | Acquired | 35.1% (price as of 2026-10-05) |
| June 10, 2020 | KOS | A | 70,834 | · | · | 145,439 Direct | +94.95% | Acquired | (price as of 2026-10-05) |
| May 27, 2020 | DD | A | 3,438 | $49.46 | $170,043 | 7,010 Direct | +96.25% | Acquired | 110.5% (price as of 2026-10-05) |
| March 6, 2020 | KOS | P | 50,000 | $2.10 | $105,000 | 74,605 Direct | +203.21% | Acquired | 20.0% (price as of 2026-10-05) |
| July 18, 2019 | KOS | A | 24,605 | · | · | 24,605 Direct | · | Acquired | (price as of 2026-10-05) |
| June 3, 2019 | DD | A | 2,240 | $76.10 | $170,464 | 3,510 Direct | +176.38% | Acquired | 36.8% (price as of 2026-10-05) |
| May 1, 2014 | CE | G | 410 | · | · | 60,049 Direct | -0.68% | Disposed | (price as of 2026-10-05) |
| Dec. 9, 2013 | CE | G | 90 | · | · | 60,459 Direct | -0.15% | Disposed | (price as of 2026-10-05) |
| Dec. 2, 2013 | CE | G | 3,000 | · | · | 60,549 Direct | -4.72% | Disposed | (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | M | 50,000 | $40.13 | $2,006,500 | 108,375 Direct | +85.65% | Acquired | 13.5% (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | M | 9,990 | $32.35 | $323,176 | 118,365 Direct | +9.22% | Acquired | 40.7% (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | M | 10,424 | $32.51 | $338,884 | 128,789 Direct | +8.81% | Acquired | 40.0% (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | S 10b5-1 | 65,240 | $57.66 | $3,761,738 | 63,549 Direct | -50.66% | Disposed | -21.0% (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | M | 50,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | M | 9,990 | · | · | 3,330 Direct | -75.00% | Disposed | (price as of 2026-10-05) |
| Oct. 24, 2013 | CE | M | 10,424 | · | · | 10,426 Direct | -50.00% | Disposed | (price as of 2026-10-05) |
| Oct. 10, 2013 | CE | A | 10,889 | · | · | 60,128 Direct | +22.11% | Acquired | (price as of 2026-10-05) |
| Oct. 10, 2013 | CE | F | 1,753 | $52.99 | $92,891 | 58,375 Direct | -2.92% | Disposed | -14.1% (price as of 2026-10-05) |
| Oct. 1, 2013 | CE | F | 842 | $52.99 | $44,618 | 35,803 Direct | -2.30% | Disposed | -14.1% (price as of 2026-10-05) |
| Dec. 12, 2012 | CE | G | 4,654 | · | · | 36,645 Direct | -11.27% | Disposed | (price as of 2026-10-05) |
| Oct. 9, 2012 | CE | A | 10,189 | · | · | 45,013 Direct | +29.26% | Acquired | (price as of 2026-10-05) |
| Oct. 9, 2012 | CE | F | 3,714 | $38.08 | $141,429 | 41,299 Direct | -8.25% | Disposed | 19.6% (price as of 2026-10-05) |
| Oct. 1, 2012 | CE | F | 2,555 | $38.08 | $97,294 | 34,824 Direct | -6.84% | Disposed | 19.6% (price as of 2026-10-05) |
| Feb. 16, 2012 | CE | M | 45,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2012 | CE | M | 30,000 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-05) |
| Feb. 16, 2012 | CE | S | 75,000 | $51.75 | $3,881,250 | 37,379 Direct | -66.74% | Disposed | -12.0% (price as of 2026-10-05) |
| Feb. 16, 2012 | CE | M | 45,000 | $20.37 | $916,650 | 112,379 Direct | +66.79% | Acquired | 123.5% (price as of 2026-10-05) |
| Feb. 16, 2012 | CE | M | 30,000 | $21.02 | $630,600 | 67,379 Direct | +80.26% | Acquired | 116.6% (price as of 2026-10-05) |
| Feb. 2, 2012 | CE | G | 2,485 | · | · | 37,379 Direct | -6.23% | Disposed | (price as of 2026-10-05) |
| Oct. 14, 2011 | CE | F | 5,666 | $40.30 | $228,340 | 39,864 Direct | -12.44% | Disposed | 13.0% (price as of 2026-10-05) |
| Oct. 14, 2011 | CE | A | 17,060 | · | · | 45,530 Direct | +59.92% | Acquired | (price as of 2026-10-05) |
| Oct. 10, 2011 | CE | F | 505 | $33.75 | $17,044 | 28,470 Direct | -1.74% | Disposed | 34.9% (price as of 2026-10-05) |
| Oct. 10, 2011 | CE | A | 1,905 | · | · | 28,975 Direct | +7.04% | Acquired | (price as of 2026-10-05) |
| Oct. 3, 2011 | CE | A | 20,850 | · | · | 20,850 Direct | · | Acquired | (price as of 2026-10-05) |
| Oct. 3, 2011 | CE | A | 9,052 | · | · | 27,070 Direct | +50.24% | Acquired | (price as of 2026-10-05) |
| Oct. 1, 2011 | CE | F | 1,156 | $33.75 | $39,015 | 18,018 Direct | -6.03% | Disposed | 34.9% (price as of 2026-10-05) |
| Dec. 3, 2010 | CE | G | 1,875 | · | · | 19,174 Direct | -8.91% | Disposed | (price as of 2026-10-05) |
| Dec. 3, 2010 | CE | G | 275 | · | · | 21,049 Direct | -1.29% | Disposed | (price as of 2026-10-05) |
| Oct. 1, 2010 | CE | A | 13,320 | · | · | 13,230 Direct | · | Acquired | (price as of 2026-10-05) |
| Oct. 1, 2010 | CE | A | 6,260 | · | · | 21,324 Direct | +41.56% | Acquired | (price as of 2026-10-05) |
| Oct. 1, 2010 | CE | F | 1,203 | $32.35 | $38,917 | 15,064 Direct | -7.40% | Disposed | 40.7% (price as of 2026-10-05) |
| Feb. 10, 2010 | CE | A | 13,436 | · | · | 13,436 Direct | · | Acquired | (price as of 2026-10-05) |
| Oct. 15, 2009 | CE | F | 540 | $24.68 | $13,327 | 5,267 Direct | -9.30% | Disposed | 84.5% (price as of 2026-10-05) |
| Oct. 15, 2009 | CE | A | 2,038 | · | · | 5,807 Direct | +54.07% | Acquired | (price as of 2026-10-05) |
| Sept. 9, 2009 | CE | A | 11,000 | · | · | 11,000 Direct | · | Acquired | (price as of 2026-10-05) |
| Oct. 29, 2008 | CE | I | 565 | $13.00 | $7,345 | 1,031 Indirect | +121.24% | Acquired | 250.2% (price as of 2026-10-05) |
| Oct. 14, 2008 | CE | F | 1,053 | $26.71 | $28,126 | 3,769 Direct | -21.84% | Disposed | 70.5% (price as of 2026-10-05) |
| Oct. 14, 2008 | CE | A | 3,322 | · | · | 4,822 Direct | +221.47% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | M | 15,000 | · | · | 45,000 Direct | -25.00% | Disposed | (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | M | 10,000 | · | · | 30,000 Direct | -25.00% | Disposed | (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.33 | $12,999 | 3,800 Direct | -7.32% | Disposed | 5.1% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 500 | $43.32 | $21,660 | 4,100 Direct | -10.87% | Disposed | 5.1% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.31 | $12,993 | 4,600 Direct | -6.12% | Disposed | 5.1% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.30 | $12,990 | 4,900 Direct | -5.77% | Disposed | 5.2% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,500 | $43.29 | $64,935 | 5,200 Direct | -22.39% | Disposed | 5.2% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 200 | $43.27 | $8,654 | 6,700 Direct | -2.90% | Disposed | 5.2% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,200 | $43.26 | $51,912 | 6,900 Direct | -14.81% | Disposed | 5.2% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,200 | $43.25 | $51,900 | 8,100 Direct | -12.90% | Disposed | 5.3% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 800 | $43.24 | $34,592 | 9,300 Direct | -7.92% | Disposed | 5.3% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,300 | $43.22 | $56,186 | 10,100 Direct | -11.40% | Disposed | 5.3% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,900 | $43.21 | $82,099 | 11,400 Direct | -14.29% | Disposed | 5.4% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 700 | $43.20 | $30,240 | 13,300 Direct | -5.00% | Disposed | 5.4% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.18 | $12,954 | 14,000 Direct | -2.10% | Disposed | 5.4% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,600 | $43.17 | $69,072 | 14,300 Direct | -10.06% | Disposed | 5.5% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 2,600 | $43.15 | $112,190 | 15,900 Direct | -14.05% | Disposed | 5.5% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 100 | $43.14 | $4,314 | 18,500 Direct | -0.54% | Disposed | 5.5% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,200 | $43.13 | $51,756 | 18,600 Direct | -6.06% | Disposed | 5.6% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 1,200 | $43.12 | $51,744 | 19,800 Direct | -5.71% | Disposed | 5.6% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 400 | $43.11 | $17,244 | 21,000 Direct | -1.87% | Disposed | 5.6% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.10 | $12,930 | 21,400 Direct | -1.38% | Disposed | 5.6% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.09 | $12,927 | 21,700 Direct | -1.36% | Disposed | 5.7% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.08 | $12,924 | 22,000 Direct | -1.35% | Disposed | 5.7% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 900 | $43.07 | $38,763 | 22,300 Direct | -3.88% | Disposed | 5.7% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 100 | $43.06 | $4,306 | 23,200 Direct | -0.43% | Disposed | 5.7% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 3,200 | $42.87 | $137,184 | 23,300 Direct | -12.08% | Disposed | 6.2% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | M | 15,000 | $20.37 | $305,550 | 26,500 Direct | +130.43% | Acquired | 123.5% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | M | 10,000 | $21.02 | $210,200 | 11,500 Direct | +666.67% | Acquired | 116.6% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 100 | $43.71 | $4,371 | 1,500 Direct | -6.25% | Disposed | 4.2% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 200 | $43.65 | $8,730 | 1,600 Direct | -11.11% | Disposed | 4.3% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 200 | $43.58 | $8,716 | 1,800 Direct | -10.00% | Disposed | 4.5% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 100 | $43.55 | $4,355 | 2,000 Direct | -4.76% | Disposed | 4.5% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 300 | $43.50 | $13,050 | 2,100 Direct | -12.50% | Disposed | 4.7% (price as of 2026-10-05) |
| Jan. 2, 2008 | CE | S | 100 | $43.44 | $4,344 | 2,400 Direct | -4.00% | Disposed | 4.8% (price as of 2026-10-05) |
Showing latest 100 of 111 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 |
|---|---|---|---|---|---|---|---|
| Oct. 24, 2013 | CE | Non-Qualfied Stock Option (Right to Buy) | Series A Common Stock | $40.13 | July 25, 2017 | 50,000 | Disposed |
| Oct. 24, 2013 | CE | Non-Qualfied Stock Option (Right to Buy) | Series A Common Stock | $32.35 | Oct. 1, 2017 | 9,990 | Disposed |
| Oct. 24, 2013 | CE | Non-Qualfied Stock Option (Right to Buy) | Series A Common Stock | $32.51 | Oct. 1, 2018 | 10,424 | Disposed |
| Feb. 16, 2012 | CE | Non-Qualified Stock Option (Right to Buy) | Series A Common Stock | $20.37 | June 30, 2016 | 45,000 | Disposed |
| Feb. 16, 2012 | CE | Non-Qualified Stock Option (Right to Buy) | Series A Common Stock | $21.02 | May 16, 2016 | 30,000 | Disposed |
| Oct. 3, 2011 | CE | Non-Qualified Stock Option (right to buy) | Series A Common Stock | $32.51 | Oct. 1, 2018 | 20,850 | Acquired |
| Oct. 1, 2010 | CE | Non-Qualified Stock Options (right to buy) [F2] | Series A Common Stock | $32.35 | · | 13,320 | Acquired |
| Feb. 10, 2010 | CE | Restricted Stock Unit | Series A Common Stock | · | · | 13,436 | Acquired |
| Jan. 2, 2008 | CE | Non-Qualified Stock Option (right to buy) | Series A Common Stock | $20.37 | June 30, 2016 | 15,000 | Disposed |
| Jan. 2, 2008 | CE | Non-Qualified Stock Option (right to buy) | Series A Common Stock | $21.02 | May 16, 2016 | 10,000 | Disposed |
| July 25, 2007 | CE | Non-qualified Stock Option (Right to Buy) | Series A Common Stock | $40.13 | July 25, 2017 | 50,000 | Acquired |
| July 25, 2007 | CE | Non-qualified Stock Option (right to buy) | Series A Common Stock | $40.13 | July 25, 2017 | 50,000 | Acquired |
| June 30, 2006 | CE | Non-qualified Stock Option (Right to Buy) | Series A Common Stock | $20.37 | June 30, 2016 | 60,000 | Acquired |
| May 16, 2006 | CE | Non-qualified Stock Option (Right to Buy) | Series A Common Stock | $21.02 | May 16, 2016 | 40,000 | 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.