Michael G. Bator
CIK 1647591 · View on SEC EDGAR ↗
First SEC filing: March 3, 2020 · Latest: March 3, 2020
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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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 13, 2023 | CTSO | P | 13,157 | — | — | 13,157 Direct | — | Acquired | (price as of 2026-08-19) |
| Dec. 13, 2023 | CTSO | P | 37,594 | $1.33 | $50,000 | 125,394 Direct | +42.82% | Acquired | -73.1% (price as of 2026-08-19) |
| Aug. 7, 2023 | CTSO | P | 1,000 | $3.15 | $3,150 | 87,800 Direct | +1.15% | Acquired | -88.6% (price as of 2026-08-19) |
| Aug. 7, 2023 | CTSO | P | 1,000 | $3.20 | $3,200 | 86,800 Direct | +1.17% | Acquired | -88.8% (price as of 2026-08-19) |
| Aug. 4, 2023 | CTSO | P | 1,000 | $3.23 | $3,230 | 85,800 Direct | +1.18% | Acquired | -88.9% (price as of 2026-08-19) |
| May 18, 2022 | CTSO | P | 1,000 | $2.21 | $2,210 | 84,800 Direct | +1.19% | Acquired | -83.8% (price as of 2026-08-19) |
| May 18, 2022 | CTSO | P | 2,000 | $2.20 | $4,400 | 83,800 Direct | +2.44% | Acquired | -83.7% (price as of 2026-08-19) |
| May 18, 2022 | CTSO | P | 2,000 | $2.20 | $4,400 | 81,800 Direct | +2.51% | Acquired | -83.7% (price as of 2026-08-19) |
| May 18, 2022 | CTSO | P | 2,000 | $2.20 | $4,400 | 79,800 Direct | +2.57% | Acquired | -83.7% (price as of 2026-08-19) |
| May 18, 2022 | CTSO | P | 2,000 | $2.18 | $4,360 | 77,800 Direct | +2.64% | Acquired | -83.6% (price as of 2026-08-19) |
| May 18, 2022 | CTSO | P | 2,000 | $2.18 | $4,360 | 75,800 Direct | +2.71% | Acquired | -83.6% (price as of 2026-08-19) |
| June 9, 2017 | CTSO | P | 1,500 | $4.12 | $6,180 | 70,500 Direct | +2.17% | Acquired | -91.3% (price as of 2026-08-19) |
| June 7, 2016 | CTSO | P | 3,000 | $4.88 | $14,640 | 3,000 Direct | — | Acquired | -92.7% (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 |
|---|---|---|---|---|---|---|---|
| Aug. 8, 2025 | CTSO | Stock Option (Right to Buy) | Common Stock (44,000) | $1.00 | Aug. 8, 2035 | 44,000 | Acquired |
| Feb. 24, 2025 | CTSO | Series A Right Warrants (right to buy) [F1] | Common Stock (15,879) | — | Feb. 24, 2025 | 15,879 | Disposed |
| Jan. 17, 2025 | CTSO | Series B Right Warrants [F1] | Common Stock (15,879) | — | April 10, 2025 | 15,879 | Acquired |
| Jan. 17, 2025 | CTSO | Series A Right Warrants [F1] | Common Stock (15,879) | — | Feb. 24, 2025 | 15,879 | Acquired |
| Jan. 17, 2025 | CTSO | Subscription Rights (right to buy) | Common Stock (15,879) | $1.00 | Jan. 10, 2025 | 15,879 | Disposed |
| April 2, 2024 | CTSO | Stock Option (Right to Buy) | Common Stock (44,000) | $0.96 | April 2, 2034 | 44,000 | Acquired |
| Dec. 13, 2023 | CTSO | Common Stock Warrant (Right to Buy) | Common Stock (13,157) | $2.00 | Dec. 13, 2028 | 13,157 | Acquired |
| July 7, 2023 | CTSO | Stock Option (right to buy) | Common Stock (40,000) | $3.53 | July 7, 2033 | 40,000 | Acquired |
| Aug. 10, 2022 | CTSO | Stock Option (right to buy) | Common Stock (18,975) | $1.95 | Aug. 10, 2032 | 18,975 | Acquired |
| April 12, 2021 | CTSO | Stock Option (right to buy) | Common Stock (17,250) | $8.99 | April 12, 2031 | 17,250 | Acquired |
| Feb. 28, 2020 | CTSO | Stock Option (right to buy) | Common Stock (15,000) | $6.03 | Feb. 28, 2030 | 15,000 | Acquired |
| July 22, 2019 | CTSO | Stock Option (right to buy) | Common Stock (15,000) | $7.33 | July 22, 2029 | 15,000 | Acquired |
| March 15, 2018 | CTSO | Stock Option (right to buy) | Common Stock (14,450) | $7.90 | March 15, 2028 | 14,450 | Acquired |
| Feb. 24, 2017 | CTSO | Stock Option (right to buy) | Common Stock (13,750) | $5.60 | Feb. 24, 2027 | 13,750 | Acquired |
| June 7, 2016 | CTSO | Stock Option (right to buy) | Common Stock (12,000) | $4.69 | June 7, 2026 | 12,000 | Acquired |
| July 14, 2015 | CTSO | Stock Option | Common Stock (6,000) | $6.65 | July 14, 2025 | 6,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).