David S Chernow
CIK 1169897 · View on SEC EDGAR ↗
First SEC filing: Sept. 24, 2009 · Latest: Sept. 24, 2009
On this page
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
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 |
|---|---|---|---|---|---|---|---|---|---|
| Aug. 9, 2021 | SEM | S 10b5-1 | 139,550 | $36.14 | $5,043,337 | 839,550 Direct | -14.25% | Disposed | |
| Nov. 9, 2020 | SEM | S 10b5-1 | 111,640 | $25.00 | $2,791,000 | 889,550 Direct | -11.15% | Disposed | |
| Nov. 1, 2019 | SEM | S 10b5-1 | 6,003 | $19.71 | $118,319 | 861,640 Direct | -0.69% | Disposed | |
| Nov. 1, 2019 | SEM | S 10b5-1 | 26,443 | $19.17 | $506,912 | 867,643 Direct | -2.96% | Disposed | |
| Oct. 31, 2019 | SEM | S 10b5-1 | 74,774 | $18.09 | $1,352,662 | 894,086 Direct | -7.72% | Disposed | |
| Oct. 30, 2019 | SEM | S 10b5-1 | 1,400 | $18.00 | $25,200 | 968,860 Direct | -0.14% | Disposed | |
| Oct. 29, 2019 | SEM | S 10b5-1 | 3,020 | $18.02 | $54,420 | 970,260 Direct | -0.31% | Disposed | |
| Aug. 8, 2018 | SEM | S 10b5-1 | 38,613 | $19.40 | $749,092 | 811,640 Direct | -4.54% | Disposed | |
| Aug. 7, 2018 | SEM | S 10b5-1 | 41,202 | $19.81 | $816,212 | 850,253 Direct | -4.62% | Disposed | |
| Sept. 14, 2017 | SEM | S 10b5-1 | 133,025 | $17.85 | $2,374,496 | 729,815 Direct | -15.42% | Disposed | |
| May 8, 2017 | SEM | S 10b5-1 | 50,000 | $14.01 | $700,500 | 749,075 Direct | -6.26% | Disposed | |
| May 8, 2017 | SEM | S 10b5-1 | 66,050 | $14.01 | $925,360 | 683,025 Direct | -8.82% | Disposed | |
| Sept. 30, 2016 | SEM | S 10b5-1 | 50,000 | $13.51 | $675,500 | 799,075 Direct | -5.89% | Disposed | |
| Sept. 7, 2016 | SEM | S 10b5-1 | 23,909 | $12.29 | $293,842 | 966,050 Direct | -2.42% | Disposed | |
| Sept. 6, 2016 | SEM | S 10b5-1 | 20,494 | $12.01 | $246,133 | 989,959 Direct | -2.03% | Disposed | |
| Sept. 2, 2016 | SEM | S 10b5-1 | 45,761 | $12.06 | $551,878 | 1,010,453 Direct | -4.33% | Disposed | |
| Aug. 30, 2016 | SEM | S 10b5-1 | 1,300 | $12.00 | $15,600 | 1,056,214 Direct | -0.12% | Disposed | |
| Aug. 8, 2016 | SEM | S 10b5-1 | 1,848 | $12.00 | $22,176 | 1,057,514 Direct | -0.17% | Disposed | |
| Aug. 8, 2016 | SEM | S 10b5-1 | 600 | $12.01 | $7,206 | 1,059,362 Direct | -0.06% | Disposed | |
| Aug. 8, 2016 | SEM | S 10b5-1 | 88 | $12.02 | $1,058 | 1,059,962 Direct | -0.01% | Disposed | |
| Aug. 8, 2016 | SEM | S 10b5-1 | 6,000 | $12.19 | $73,140 | 1,060,050 Direct | -0.56% | Disposed | |
| July 1, 2015 | SEM | S 10b5-1 | 33,025 | $16.39 | $541,280 | 783,025 Direct | -4.05% | Disposed | |
| July 1, 2015 | SEM | S 10b5-1 | 6,000 | $16.34 | $98,040 | 816,050 Direct | -0.73% | Disposed | |
| Oct. 3, 2014 | SEM | S 10b5-1 | 35,000 | $12.09 | $423,150 | 816,050 Direct | -4.11% | Disposed | |
| Oct. 2, 2014 | SEM | S 10b5-1 | 60,199 | $12.06 | $726,000 | 851,050 Direct | -6.61% | Disposed | |
| Oct. 1, 2014 | SEM | S 10b5-1 | 4,801 | $12.02 | $57,708 | 911,249 Direct | -0.52% | Disposed | |
| Sept. 7, 2012 | SEM | S | 3,000 | $10.48 | $31,440 | 1,000,000 Direct | -0.30% | Disposed | |
| Sept. 7, 2012 | SEM | S | 4,500 | $10.47 | $47,115 | 1,003,000 Direct | -0.45% | Disposed | |
| Sept. 7, 2012 | SEM | S | 2,100 | $10.46 | $21,966 | 1,007,500 Direct | -0.21% | Disposed | |
| Sept. 7, 2012 | SEM | S | 1,500 | $10.44 | $15,660 | 1,009,600 Direct | -0.15% | Disposed | |
| Sept. 7, 2012 | SEM | S | 900 | $10.41 | $9,369 | 1,011,100 Direct | -0.09% | Disposed | |
| Aug. 22, 2012 | SEM | S | 500 | $10.30 | $5,150 | 1,000,000 Direct | -0.05% | Disposed | |
| Aug. 22, 2012 | SEM | S | 2,000 | $10.30 | $20,600 | 1,000,500 Direct | -0.20% | Disposed | |
| Aug. 22, 2012 | SEM | S | 1,069 | $10.30 | $11,011 | 1,002,500 Direct | -0.11% | Disposed | |
| Aug. 22, 2012 | SEM | S | 1,500 | $10.30 | $15,450 | 1,003,569 Direct | -0.15% | Disposed | |
| Aug. 22, 2012 | SEM | S | 1,819 | $10.35 | $18,827 | 1,005,069 Direct | -0.18% | Disposed | |
| Aug. 22, 2012 | SEM | S | 5,000 | $10.35 | $51,750 | 1,006,888 Direct | -0.49% | Disposed | |
| Aug. 22, 2012 | SEM | S | 2,743 | $10.47 | $28,719 | 1,011,888 Direct | -0.27% | Disposed |
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 1, 2015 | SEM | Non-Qualified Stock Option (right to buy) | Common Stock (3,000) | $10.00 | Aug. 11, 2019 | 3,000 | Disposed |
| July 1, 2015 | SEM | Non-Qualified Stock Option (right to buy) | Common Stock (3,000) | $10.00 | Aug. 19, 2018 | 3,000 | Disposed |
| Sept. 7, 2012 | SEM | Non-Qualified Stock Option (right to buy) | Common Stock (3,000) | $8.33 | Aug. 14, 2017 | 3,000 | Disposed |
| Sept. 7, 2012 | SEM | Non-Qualified Stock Option (right to buy) | Common Stock (3,000) | $8.33 | Nov. 8, 2016 | 3,000 | Disposed |
| Sept. 7, 2012 | SEM | Non-Qualified Stock Option (right to buy) | Common Stock (6,000) | $3.33 | Aug. 9, 2015 | 6,000 | Disposed |
| Sept. 30, 2009 | SEM | Participating Preferred Stock | Common Stock (8,631) | — | — | 2,974 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Sept. 24, 2009 | SEM | Common Stock | 6,000 | Direct |
| Sept. 24, 2009 | SEM | Non-Qualified Stock Option (right to buy)→ Common Stock (6,000) | 6,000 | Direct |
| Sept. 24, 2009 | SEM | Non-Qualified Stock Option (right to buy)→ Common Stock (3,000) | 3,000 | Direct |
| Sept. 24, 2009 | SEM | Non-Qualified Stock Option (right to buy)→ Common Stock (3,000) | 3,000 | Direct |
| Sept. 24, 2009 | SEM | Non-Qualified Stock Option (right to buy)→ Common Stock (3,000) | 3,000 | Direct |
| Sept. 24, 2009 | SEM | Non-Qualified Stock Option (right to buy)→ Common Stock (3,000) | 3,000 | Direct |
| Sept. 24, 2009 | SEM | Participating Preferred Stock→ Common Stock | — | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
CIK 1320414
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2024 | $995,000 | — | $6,525,100 | — | $2,487,500 | — | $304,133 | $10,311,733 |
| 2023 | $995,000 | — | $7,480,000 | — | $1,890,500 | — | $340,765 | $10,706,265 |
| 2022 | $995,000 | — | $7,427,500 | — | — | — | $357,979 | $8,780,479 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.