Michael M Tarnow
CIK 1263647 · View on SEC EDGAR ↗
Insider
First SEC filing: Nov. 4, 2014 · Latest: Nov. 4, 2014
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 57 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 18, 2021 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| May 18, 2021 | XENE | M | 1,028 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| May 18, 2021 | XENE | M | 2,057 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| May 18, 2021 | XENE | M | 5,144 | $3.67 | $18,878 | 77,942 Direct | +7.07% | Acquired | 1580.2% (price as of 2026-08-20) |
| May 18, 2021 | XENE | M | 1,028 | $3.67 | $3,773 | 72,798 Direct | +1.43% | Acquired | 1580.2% (price as of 2026-08-20) |
| May 18, 2021 | XENE | M | 2,057 | $3.87 | $7,961 | 71,770 Direct | +2.95% | Acquired | 1493.4% (price as of 2026-08-20) |
| Oct. 28, 2020 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Oct. 28, 2020 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Oct. 28, 2020 | XENE | G | 10,288 | — | — | 69,713 Direct | -12.86% | Disposed | (price as of 2026-08-20) |
| Oct. 28, 2020 | XENE | M | 5,144 | $3.76 | $19,341 | 80,001 Direct | +6.87% | Acquired | 1540.0% (price as of 2026-08-20) |
| Oct. 28, 2020 | XENE | M | 5,144 | $3.76 | $19,341 | 74,857 Direct | +7.38% | Acquired | 1540.0% (price as of 2026-08-20) |
| June 9, 2020 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 9, 2020 | XENE | M | 5,144 | $3.52 | $18,107 | 69,713 Direct | +7.97% | Acquired | 1651.8% (price as of 2026-08-20) |
| June 1, 2020 | XENE | A | 10,000 | — | — | 10,000 Direct | — | Acquired | (price as of 2026-08-20) |
| Nov. 21, 2019 | XENE | M | 2,057 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Nov. 21, 2019 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Nov. 21, 2019 | XENE | G | 2,057 | — | — | 64,569 Direct | -3.09% | Disposed | (price as of 2026-08-20) |
| Nov. 21, 2019 | XENE | M | 2,057 | $3.51 | $7,220 | 66,626 Direct | +3.19% | Acquired | 1656.8% (price as of 2026-08-20) |
| Nov. 21, 2019 | XENE | G | 5,144 | — | — | 64,569 Direct | -7.38% | Disposed | (price as of 2026-08-20) |
| Nov. 21, 2019 | XENE | M | 5,144 | $3.56 | $18,313 | 69,713 Direct | +7.97% | Acquired | 1632.2% (price as of 2026-08-20) |
| Sept. 16, 2019 | XENE | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-20) |
| May 21, 2019 | XENE | M | 2,057 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| May 21, 2019 | XENE | M | 2,057 | $3.21 | $6,603 | 64,569 Direct | +3.29% | Acquired | 1821.0% (price as of 2026-08-20) |
| Dec. 21, 2018 | XENE | G | 5,000 | — | — | 62,512 Direct | -7.41% | Disposed | (price as of 2026-08-20) |
| June 21, 2018 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 21, 2018 | XENE | M | 2,057 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 21, 2018 | XENE | M | 5,144 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 21, 2018 | XENE | M | 5,144 | $3.07 | $15,792 | 67,512 Direct | +8.25% | Acquired | 1908.6% (price as of 2026-08-20) |
| June 21, 2018 | XENE | M | 2,057 | $3.66 | $7,529 | 62,368 Direct | +3.41% | Acquired | 1584.8% (price as of 2026-08-20) |
| June 21, 2018 | XENE | M | 5,144 | $3.70 | $19,033 | 60,311 Direct | +9.32% | Acquired | 1566.6% (price as of 2026-08-20) |
| June 4, 2018 | XENE | A | 15,000 | — | — | 15,000 Direct | — | Acquired | (price as of 2026-08-20) |
| June 19, 2017 | XENE | M | 1,028 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 19, 2017 | XENE | G | 1,028 | — | — | 55,167 Direct | -1.83% | Disposed | (price as of 2026-08-20) |
| June 19, 2017 | XENE | M | 1,028 | $3.51 | $3,608 | 56,195 Direct | +1.86% | Acquired | 1656.8% (price as of 2026-08-20) |
| June 1, 2017 | XENE | A | 1,250 | — | — | 1,250 Direct | — | Acquired | (price as of 2026-08-20) |
| June 1, 2017 | XENE | A | 3,500 | — | — | 3,500 Direct | — | Acquired | (price as of 2026-08-20) |
| Jan. 26, 2017 | XENE | G | 7,201 | — | — | 55,167 Direct | -11.55% | Disposed | (price as of 2026-08-20) |
| Dec. 12, 2016 | XENE | M | 14,403 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Dec. 12, 2016 | XENE | G | 7,202 | — | — | 62,368 Direct | -10.35% | Disposed | (price as of 2026-08-20) |
| Dec. 12, 2016 | XENE | M | 14,403 | $3.21 | $46,234 | 69,570 Direct | +26.11% | Acquired | 1821.0% (price as of 2026-08-20) |
| June 2, 2016 | XENE | A | 3,500 | — | — | 3,500 Direct | — | Acquired | (price as of 2026-08-20) |
| June 2, 2016 | XENE | A | 1,250 | — | — | 1,250 Direct | — | Acquired | (price as of 2026-08-20) |
| April 28, 2016 | XENE | M | 1,543 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| April 28, 2016 | XENE | G | 1,543 | — | — | 55,167 Direct | -2.72% | Disposed | (price as of 2026-08-20) |
| April 28, 2016 | XENE | M | 1,543 | $3.35 | $5,169 | 56,710 Direct | +2.80% | Acquired | 1740.7% (price as of 2026-08-20) |
| Nov. 2, 2015 | XENE | M | 5,041 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Nov. 2, 2015 | XENE | G | 5,041 | — | — | 55,167 Direct | -8.37% | Disposed | (price as of 2026-08-20) |
| Nov. 2, 2015 | XENE | M | 5,041 | $5.22 | $26,314 | 60,208 Direct | +9.14% | Acquired | 1081.3% (price as of 2026-08-20) |
| June 17, 2015 | XENE | M | 1,543 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| June 17, 2015 | XENE | M | 1,543 | $4.95 | $7,638 | 55,167 Direct | +2.88% | Acquired | 1145.8% (price as of 2026-08-20) |
| May 4, 2015 | XENE | A | 1,028 | — | — | 1,028 Direct | — | Acquired | (price as of 2026-08-20) |
| May 4, 2015 | XENE | A | 3,086 | — | — | 3,086 Direct | — | Acquired | (price as of 2026-08-20) |
| Jan. 8, 2015 | XENE | M | 5,041 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Jan. 8, 2015 | XENE | M | 5,041 | $4.98 | $25,104 | 53,624 Direct | +10.38% | Acquired | 1138.3% (price as of 2026-08-20) |
| Nov. 9, 2014 | XENE | C | 16,718 | — | — | 0 Direct | -100.00% | Disposed | (price as of 2026-08-20) |
| Nov. 9, 2014 | XENE | C | 16,718 | — | — | 48,583 Direct | +52.47% | Acquired | (price as of 2026-08-20) |
| Nov. 4, 2014 | XENE | A | 5,144 | — | — | 5,144 Direct | — | Acquired | (price as of 2026-08-20) |
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 18, 2021 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | Dec. 31, 2021 | 5,144 | Disposed |
| May 18, 2021 | XENE | Stock Option (Right to Buy) | Common Shares (1,028) | — | Dec. 31, 2021 | 1,028 | Disposed |
| May 18, 2021 | XENE | Stock Option (Right to Buy) | Common Shares (2,057) | — | June 30, 2021 | 2,057 | Disposed |
| Oct. 28, 2020 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | Dec. 31, 2020 | 5,144 | Disposed |
| Oct. 28, 2020 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | Dec. 31, 2020 | 5,144 | Disposed |
| June 9, 2020 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | July 1, 2020 | 5,144 | Disposed |
| June 1, 2020 | XENE | Stock Option (Right to Buy) | Common Shares (10,000) | $13.11 | May 31, 2030 | 10,000 | Acquired |
| Nov. 21, 2019 | XENE | Stock Option (Right to Buy) | Common Shares (2,057) | — | June 30, 2020 | 2,057 | Disposed |
| Nov. 21, 2019 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | Dec. 31, 2019 | 5,144 | Disposed |
| Sept. 16, 2019 | XENE | Stock Option (Right to Buy) | Common Shares (15,000) | $9.44 | Sept. 15, 2029 | 15,000 | Acquired |
| May 21, 2019 | XENE | Stock Option (Right to Buy) | Common Shares (2,057) | — | June 30, 2019 | 2,057 | Disposed |
| June 21, 2018 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | Dec. 31, 2018 | 5,144 | Disposed |
| June 21, 2018 | XENE | Stock Option (Right to Buy) | Common Shares (2,057) | — | June 30, 2018 | 2,057 | Disposed |
| June 21, 2018 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | — | June 26, 2018 | 5,144 | Disposed |
| June 4, 2018 | XENE | Stock Option (Right to Buy) | Common Shares (15,000) | $6.20 | June 3, 2028 | 15,000 | Acquired |
| June 19, 2017 | XENE | Stock Option (Right to Buy) | Common Shares (1,028) | — | June 30, 2017 | 1,028 | Disposed |
| June 1, 2017 | XENE | Stock Option (Right to Buy) | Common Shares (1,250) | $3.85 | May 31, 2027 | 1,250 | Acquired |
| June 1, 2017 | XENE | Stock Option (Right to Buy) | Common Shares (3,500) | $3.85 | May 31, 2027 | 3,500 | Acquired |
| Dec. 12, 2016 | XENE | Stock Option (Right to Buy) | Common Shares (14,403) | — | Dec. 31, 2016 | 14,403 | Disposed |
| June 2, 2016 | XENE | Stock Option (Right to Buy) | Common Shares (3,500) | $7.38 | June 1, 2026 | 3,500 | Acquired |
| June 2, 2016 | XENE | Stock Option (Right to Buy) | Common Shares (1,250) | $7.38 | June 1, 2026 | 1,250 | Acquired |
| April 28, 2016 | XENE | Stock Option (Right to Buy) | Common Shares (1,543) | — | June 30, 2016 | 1,543 | Disposed |
| Nov. 2, 2015 | XENE | Stock Option (Right to Buy) | Common Shares (5,041) | — | Dec. 31, 2015 | 5,041 | Disposed |
| June 17, 2015 | XENE | Stock Option (Right to Buy) | Common Shares (1,543) | — | June 30, 2015 | 1,543 | Disposed |
| May 4, 2015 | XENE | Stock Option (Right to Buy) | Common Shares (1,028) | — | May 3, 2025 | 1,028 | Acquired |
| May 4, 2015 | XENE | Stock Option (Right to Buy) | Common Shares (3,086) | — | May 3, 2025 | 3,086 | Acquired |
| Jan. 8, 2015 | XENE | Stock Option (Right to Buy) | Common Shares (5,041) | — | May 8, 2015 | 5,041 | Disposed |
| Nov. 9, 2014 | XENE | Series A Preferred Shares | Common Shares (16,718) | — | — | 16,718 | Disposed |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy) | Common Shares (5,144) | $9.00 | Nov. 3, 2024 | 5,144 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 29 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Nov. 4, 2014 | XENE | Common Shares | 31,865 | Direct |
| Nov. 4, 2014 | XENE | Series A Preferred Shares→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |
| Nov. 4, 2014 | XENE | Stock Option (Right to Buy)→ Common Shares | — | Direct |