Robert J Lefkowitz MD
CIK 1226385 · View on SEC EDGAR ↗
Insider
First SEC filing: April 27, 2009 · Latest: April 27, 2009
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 44 non-open-market transactions below
last 12 months, based on the transactions shown below
Price change vs current quote, split-adjusted for corporate actions since the filing — not benchmarked, not annualized, not size-weighted
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| May 13, 2024 | LXRX | A | 36,810 | — | — | 36,810 Direct | — | Acquired | (price as of 2026-08-19) |
| May 13, 2024 | LXRX | A | 44,906 | — | — | 44,906 Direct | — | Acquired | (price as of 2026-08-19) |
| April 28, 2024 | LXRX | M | 8,032 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 28, 2024 | LXRX | M | 8,032 | — | — | 48,364 Direct | +19.91% | Acquired | (price as of 2026-08-19) |
| May 21, 2023 | LXRX | M | 9,302 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| May 21, 2023 | LXRX | M | 9,302 | — | — | 40,332 Direct | +29.98% | Acquired | (price as of 2026-08-19) |
| April 28, 2023 | LXRX | A | 12,658 | — | — | 12,658 Direct | — | Acquired | (price as of 2026-08-19) |
| April 28, 2023 | LXRX | A | 8,032 | — | — | 8,032 Direct | — | Acquired | (price as of 2026-08-19) |
| May 21, 2022 | LXRX | A | 9,302 | — | — | 9,302 Direct | — | Acquired | (price as of 2026-08-19) |
| May 21, 2022 | LXRX | A | 14,402 | — | — | 14,402 Direct | — | Acquired | (price as of 2026-08-19) |
| April 30, 2022 | LXRX | M | 4,024 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 30, 2022 | LXRX | M | 4,024 | — | — | 31,030 Direct | +14.90% | Acquired | (price as of 2026-08-19) |
| April 30, 2021 | LXRX | A | 4,024 | — | — | 4,024 Direct | — | Acquired | (price as of 2026-08-19) |
| April 30, 2021 | LXRX | A | 6,475 | — | — | 6,475 Direct | — | Acquired | (price as of 2026-08-19) |
| April 24, 2021 | LXRX | M | 10,638 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 24, 2021 | LXRX | M | 10,638 | — | — | 27,006 Direct | +64.99% | Acquired | (price as of 2026-08-19) |
| April 26, 2020 | LXRX | M | 3,466 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-19) |
| April 26, 2020 | LXRX | M | 3,466 | — | — | 16,368 Direct | +26.86% | Acquired | (price as of 2026-08-19) |
| April 24, 2020 | LXRX | A | 10,638 | — | — | 10,638 Direct | — | Acquired | (price as of 2026-08-19) |
| April 24, 2020 | LXRX | A | 18,115 | — | — | 18,115 Direct | — | Acquired | (price as of 2026-08-19) |
| April 26, 2019 | LXRX | A | 3,466 | — | — | 3,466 Direct | — | Acquired | (price as of 2026-08-19) |
| April 26, 2019 | LXRX | A | 6,519 | — | — | 6,519 Direct | — | Acquired | (price as of 2026-08-19) |
| April 27, 2018 | LXRX | A | 2,857 | — | — | 2,857 Direct | — | Acquired | (price as of 2026-08-19) |
| April 27, 2018 | LXRX | A | 2,564 | — | — | 12,902 Direct | +24.80% | Acquired | (price as of 2026-08-19) |
| April 28, 2017 | LXRX | A | 2,857 | — | — | 2,857 Direct | — | Acquired | (price as of 2026-08-19) |
| April 28, 2017 | LXRX | A | 1,281 | — | — | 10,338 Direct | +14.14% | Acquired | (price as of 2026-08-19) |
| April 29, 2016 | LXRX | A | 2,857 | — | — | 2,857 Direct | — | Acquired | (price as of 2026-08-19) |
| April 29, 2016 | LXRX | A | 1,432 | — | — | 9,057 Direct | +18.78% | Acquired | (price as of 2026-08-19) |
| April 24, 2015 | LXRX | A | 20,000 | — | — | 20,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 24, 2015 | LXRX | A | 18,691 | — | — | 53,376 Direct | +53.89% | Acquired | (price as of 2026-08-19) |
| April 25, 2014 | LXRX | A | 20,000 | — | — | 20,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 25, 2014 | LXRX | A | 12,820 | — | — | 34,685 Direct | +58.63% | Acquired | (price as of 2026-08-19) |
| May 10, 2013 | LXRX | A | 20,000 | — | — | 20,000 Direct | — | Acquired | (price as of 2026-08-19) |
| May 10, 2013 | LXRX | A | 10,101 | — | — | 21,865 Direct | +85.86% | Acquired | (price as of 2026-08-19) |
| April 27, 2012 | LXRX | A | 20,000 | — | — | 20,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 27, 2012 | LXRX | A | 11,764 | — | — | 11,764 Direct | — | Acquired | (price as of 2026-08-19) |
| April 29, 2011 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 30, 2010 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 24, 2009 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 24, 2008 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 26, 2007 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 27, 2006 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| April 28, 2005 | LXRX | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-19) |
| May 20, 2004 | LXRX | A | 6,000 | — | — | 6,000 Direct | — | Acquired | (price as of 2026-08-19) |
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 |
|---|---|---|---|---|---|---|---|
| May 13, 2024 | LXRX | Restricted Stock Units | Common Stock (36,810) | $0.00 | — | 36,810 | Acquired |
| May 13, 2024 | LXRX | Stock Option (Right to Buy) | Common Stock (44,906) | $1.79 | May 13, 2034 | 44,906 | Acquired |
| April 28, 2024 | LXRX | Restricted Stock Units | Common Stock (8,032) | $0.00 | — | 8,032 | Disposed |
| May 21, 2023 | LXRX | Restricted Stock Units | Common Stock (9,302) | $0.00 | — | 9,302 | Disposed |
| April 28, 2023 | LXRX | Stock Option (Right to Buy) | Common Stock (12,658) | $2.36 | April 28, 2033 | 12,658 | Acquired |
| April 28, 2023 | LXRX | Restricted Stock Units | Common Stock (8,032) | $0.00 | — | 8,032 | Acquired |
| May 21, 2022 | LXRX | Restricted Stock Units | Common Stock (9,302) | $0.00 | — | 9,302 | Acquired |
| May 21, 2022 | LXRX | Stock Option (Right to Buy) | Common Stock (14,402) | $1.77 | May 21, 2032 | 14,402 | Acquired |
| April 30, 2022 | LXRX | Restricted Stock Units | Common Stock (4,024) | $0.00 | — | 4,024 | Disposed |
| April 30, 2021 | LXRX | Restricted Stock Units | Common Stock (4,024) | $0.00 | — | 4,024 | Acquired |
| April 30, 2021 | LXRX | Stock Option (Right to Buy) | Common Stock (6,475) | $5.04 | April 30, 2031 | 6,475 | Acquired |
| April 24, 2021 | LXRX | Restricted Stock Units | Common Stock (10,638) | $0.00 | — | 10,638 | Disposed |
| April 26, 2020 | LXRX | Restricted Stock Units | Common Stock (3,466) | — | — | 3,466 | Disposed |
| April 24, 2020 | LXRX | Restricted Stock Units | Common Stock (10,638) | $0.00 | — | 10,638 | Acquired |
| April 24, 2020 | LXRX | Stock Option (Right to Buy) | Common Stock (18,115) | $1.86 | April 24, 2030 | 18,115 | Acquired |
| April 26, 2019 | LXRX | Restricted Stock Units | Common Stock (3,466) | — | — | 3,466 | Acquired |
| April 26, 2019 | LXRX | Stock Option (Right to Buy) | Common Stock (6,519) | $5.67 | April 26, 2029 | 6,519 | Acquired |
| April 27, 2018 | LXRX | Stock Option (Right to Buy) | Common Stock (2,857) | $7.80 | April 27, 2028 | 2,857 | Acquired |
| April 28, 2017 | LXRX | Stock Option (Right to Buy) | Common Stock (2,857) | $15.61 | April 28, 2027 | 2,857 | Acquired |
| April 29, 2016 | LXRX | Stock Option (Right to Buy) | Common Stock (2,857) | $13.96 | April 29, 2026 | 2,857 | Acquired |
| April 24, 2015 | LXRX | Stock Option (Right to Buy) | Common Stock (20,000) | $1.07 | April 24, 2025 | 20,000 | Acquired |
| April 25, 2014 | LXRX | Stock Option (Right to Buy) | Common Stock (20,000) | $1.56 | April 25, 2024 | 20,000 | Acquired |
| May 10, 2013 | LXRX | Stock Option (Right to Buy) | Common Stock (20,000) | $1.98 | May 10, 2023 | 20,000 | Acquired |
| April 27, 2012 | LXRX | Stock Option (Right to Buy) | Common Stock (20,000) | $1.70 | April 27, 2022 | 20,000 | Acquired |
| April 29, 2011 | LXRX | Stock Option (Right to Buy) | Common Stock (10,000) | $1.69 | April 29, 2021 | 10,000 | Acquired |
| April 30, 2010 | LXRX | Stock Option (Right to Buy) | Common Stock (10,000) | $1.54 | April 30, 2020 | 10,000 | Acquired |
| April 24, 2009 | LXRX | Stock Option (right to buy) | Common Stock (10,000) | $0.99 | April 24, 2019 | 10,000 | Acquired |
| April 24, 2008 | LXRX | Stock Option (right to buy) | Common Stock (10,000) | $2.20 | April 24, 2018 | 10,000 | Acquired |
| April 26, 2007 | LXRX | Stock Option (right to buy) | Common Stock (10,000) | $3.77 | April 26, 2017 | 10,000 | Acquired |
| April 27, 2006 | LXRX | Stock Option (right to buy) | Common Stock (10,000) | $5.10 | April 27, 2016 | 10,000 | Acquired |
| April 28, 2005 | LXRX | Stock Option (right to buy) | Common Stock (10,000) | $4.40 | April 28, 2015 | 10,000 | Acquired |
| May 20, 2004 | LXRX | Stock Option (right to buy) | Common Stock (6,000) | $6.84 | May 20, 2014 | 6,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).