Phillip P. Chan

CIK 1442786 · View on SEC EDGAR ↗

Insider

First SEC filing: Aug. 22, 2008 · Latest: Feb. 14, 2013

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Insider at

Insider transactions

2 buys (P) 0 sells (S) Net: $104,897 + 73 non-open-market transactions below Avg return of open purchases vs now: -13.1% 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

73 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
June 15, 2026 CTSO P 10,333 $0.43 $4,443 1,744,432 Direct +0.60% Acquired -16.2% (price as of 2026-08-20)
June 12, 2026 CTSO P 251,136 $0.40 $100,454 1,734,099 Direct +16.93% Acquired -10.0% (price as of 2026-08-20)
Dec. 13, 2023 CTSO P 26,315 — — 26,315 Direct — Acquired (price as of 2026-08-20)
Dec. 13, 2023 CTSO P 75,188 $1.33 $100,000 1,068,704 Direct +7.57% Acquired -72.9% (price as of 2026-08-20)
Dec. 8, 2022 CTSO P 5,859 $1.26 $7,382 897,279 Direct +0.66% Acquired -71.4% (price as of 2026-08-20)
Dec. 7, 2022 CTSO P 9,850 $1.26 $12,411 891,420 Direct +1.12% Acquired -71.4% (price as of 2026-08-20)
Dec. 6, 2022 CTSO P 14,291 $1.26 $18,007 881,570 Direct +1.65% Acquired -71.4% (price as of 2026-08-20)
Sept. 8, 2022 CTSO P 35,000 $1.70 $59,500 867,279 Direct +4.21% Acquired -78.8% (price as of 2026-08-20)
June 16, 2022 CTSO P 10b5-1 2,221 $1.85 $4,109 768,351 Direct +0.29% Acquired -80.5% (price as of 2026-08-20)
June 9, 2022 CTSO P 16,000 $2.17 $34,720 766,130 Direct +2.13% Acquired -83.4% (price as of 2026-08-20)
Dec. 30, 2021 CTSO P 10b5-1 5,462 $4.05 $22,121 768,443 Direct +0.72% Acquired -91.1% (price as of 2026-08-20)
Dec. 29, 2021 CTSO P 10b5-1 9,438 $4.05 $38,224 762,981 Direct +1.25% Acquired -91.1% (price as of 2026-08-20)
Dec. 29, 2021 CTSO P 10b5-1 100 $4.04 $404 753,543 Direct +0.01% Acquired -91.1% (price as of 2026-08-20)
Dec. 10, 2021 CTSO P 5,000 $5.25 $26,250 753,443 Direct +0.67% Acquired -93.1% (price as of 2026-08-20)
Dec. 6, 2019 CTSO P 16,500 $3.60 $59,400 657,688 Direct +2.57% Acquired -90.0% (price as of 2026-08-20)
Dec. 7, 2018 CTSO S 24,337 $9.37 $228,038 503,281 Direct -4.61% Disposed -96.2% (price as of 2026-08-20)
Sept. 7, 2018 CTSO S 2,731 $14.11 $38,534 438,281 Direct -0.62% Disposed -97.4% (price as of 2026-08-20)
Sept. 6, 2018 CTSO S 2,900 $14.75 $42,775 441,012 Direct -0.65% Disposed -97.6% (price as of 2026-08-20)
Sept. 5, 2018 CTSO S 5,187 $14.85 $77,027 443,912 Direct -1.15% Disposed -97.6% (price as of 2026-08-20)
Sept. 5, 2018 CTSO S 600 $14.85 $8,910 449,099 Direct -0.13% Disposed -97.6% (price as of 2026-08-20)
June 8, 2017 CTSO P 3,700 $4.00 $14,800 399,907 Direct +0.93% Acquired -91.0% (price as of 2026-08-20)
June 5, 2017 CTSO P 6,300 $4.00 $25,200 396,207 Direct +1.62% Acquired -91.0% (price as of 2026-08-20)
Dec. 9, 2016 CTSO P 4,600 $5.40 $24,840 448,103 Direct +1.04% Acquired -93.3% (price as of 2026-08-20)
Aug. 24, 2016 CTSO P 5,000 $4.89 $24,450 121,648 Direct +4.29% Acquired -92.6% (price as of 2026-08-20)
June 21, 2013 CTSO P 1 — — 1 Direct — Acquired (price as of 2026-08-20)
June 21, 2013 CTSO P None $50000.00 — — Direct — Acquired -100.0% (price as of 2026-08-20)
Sept. 4, 2012 CTSO P 190,000 $0.13 $24,700 190,000 Direct — Acquired -88.9% (price as of 2026-08-20)

Showing latest 100 of 105 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
Aug. 8, 2025 CTSO Stock Option (Right to Buy) Common Stock (136,400) $1.00 Aug. 8, 2035 136,400 Acquired
Feb. 24, 2025 CTSO Series A Right Warrants (right to buy) [F1] Common Stock (34,168) — Feb. 24, 2025 34,168 Disposed
Jan. 17, 2025 CTSO Series B Right Warrants [F1] Common Stock (90,832) — April 10, 2025 90,832 Acquired
Jan. 17, 2025 CTSO Series A Right Warrants [F1] Common Stock (90,832) — Feb. 24, 2025 90,832 Acquired
Jan. 17, 2025 CTSO Subscription Rights (right to buy) Common Stock (90,832) $1.00 Jan. 10, 2025 90,832 Disposed
April 2, 2024 CTSO Stock Option (Right to Buy) Common Stock (124,000) $0.96 April 2, 2034 124,000 Acquired
March 29, 2024 CTSO Stock Option (Right to Buy) Common Stock (129,998) $0.95 March 29, 2034 129,998 Acquired
Dec. 13, 2023 CTSO Common Stock Warrant (Right to Buy) Common Stock (26,315) $2.00 Dec. 13, 2028 26,315 Acquired
July 7, 2023 CTSO Stock Option (right to buy) Common Stock (48,000) $3.53 July 7, 2033 48,000 Disposed
July 7, 2023 CTSO Stock Option (right to buy) Common Stock (112,000) $3.53 July 7, 2033 112,000 Disposed
April 3, 2023 CTSO Stock Option (right to buy) Common Stock (30,500) $2.88 April 4, 2023 30,500 Disposed
Aug. 10, 2022 CTSO Stock Option (right to buy) Common Stock (240,000) $1.95 Aug. 10, 2032 240,000 Acquired
Aug. 10, 2022 CTSO Stock Option (right to buy) Common Stock (106,000) $1.95 Aug. 10, 2032 106,000 Acquired
April 12, 2021 CTSO Stock Option (right to buy) Common Stock (96,000) $8.99 April 12, 2031 96,000 Acquired
May 5, 2020 CTSO Stock Option (right to buy) Common Stock (14,100) $3.45 May 5, 2030 14,100 Disposed
Feb. 28, 2020 CTSO Stock Option (right to buy) Common Stock (80,000) $6.03 Feb. 28, 2030 80,000 Acquired
Aug. 15, 2019 CTSO Stock Option (right to buy) Common Stock (75,000) $3.45 May 5, 2020 75,000 Disposed
July 22, 2019 CTSO Stock Option (right to buy) Common Stock (80,000) $7.33 July 22, 2029 80,000 Acquired
June 7, 2019 CTSO Stock Option (right to buy) Common Stock (20,000) $4.32 Jan. 4, 2020 20,000 Disposed
Dec. 7, 2018 CTSO Non-Statutory Stock Option (right to buy) Common Stock (89,337) $2.10 Jan. 8, 2019 89,337 Acquired
Sept. 7, 2018 CTSO Non-Statutory Stock Option (right to buy) Common Stock (2,731) $2.10 Jan. 8, 2019 2,731 Acquired
Sept. 6, 2018 CTSO Non-Statutory Stock Option (right to buy) Common Stock (2,900) $2.10 Jan. 8, 2019 2,900 Acquired
Sept. 5, 2018 CTSO Non-Statutory Stock Option (right to buy) Common Stock (5,187) $2.10 Jan. 8, 2019 5,187 Acquired
Sept. 5, 2018 CTSO Non-Statutory Stock Option (right to buy) Common Stock (600) $2.00 Dec. 31, 2018 600 Acquired
June 11, 2018 CTSO Common Stock Warrants (right to buy) Common Stock (8,000) $3.75 June 21, 2018 8,000 Disposed
March 15, 2018 CTSO Stock Option (right to buy) Common Stock (117,750) $7.90 March 15, 2028 117,750 Acquired
Feb. 28, 2018 CTSO Stock Option (right to buy) Common Stock (95,200) $5.60 Feb. 24, 2027 95,200 Acquired
Feb. 24, 2017 CTSO Stock Option (right to buy) Common Stock (112,000) $5.60 Feb. 24, 2027 112,000 Acquired
Jan. 30, 2017 CTSO Stock Option (right to buy) Common Stock (77,600) $4.69 June 7, 2026 77,600 Acquired
June 7, 2016 CTSO Stock Option (right to buy) Common Stock (97,000) $4.69 June 7, 2026 97,000 Acquired
June 7, 2016 CTSO Stock Option (right to buy) Common Stock (7,000) $8.07 April 8, 2025 7,000 Acquired
Oct. 19, 2015 CTSO Warrant (right to buy) Common Stock (2,000) $2.50 Oct. 22, 2015 2,000 Disposed
Oct. 19, 2015 CTSO Warrant (right to buy) Common Stock (800) $3.12 Oct. 22, 2015 800 Disposed
Oct. 19, 2015 CTSO Warrant (right to buy) Common Stock (667) $3.75 Oct. 22, 2015 667 Disposed
April 8, 2015 CTSO Stock Option (right to buy) Common Stock (70,000) $8.07 April 8, 2025 70,000 Acquired
Oct. 9, 2014 CTSO Series B 10% Convertible Preferred Stock Common Stock (1,061,354) — — 384 Disposed
March 28, 2014 CTSO Stock Option Common Stock (1,750,000) $0.20 March 28, 2024 1,750,000 Acquired
June 21, 2013 CTSO Warrants Common Stock (200,000) $0.15 June 21, 2018 1 Acquired
June 21, 2013 CTSO Convertible Note Common Stock (400,000) $0.12 June 21, 2014 — Acquired
April 4, 2013 CTSO Stock Option Common Stock (1,650,000) $0.12 April 4, 2023 1,650,000 Acquired
Sept. 17, 2010 CTSO Convertible Note Plus Warrants Common Stock (200,000) $0.10 — 100,000 Acquired
May 5, 2010 CTSO Stock Option Common Stock (3,350,000) $0.14 May 5, 2020 3,350,000 Acquired
Jan. 4, 2010 CTSO Stock Option Common Stock (500,000) $0.17 Jan. 4, 2020 500,000 Acquired
Jan. 8, 2009 CTSO Stock Option Common Stock (2,503,858) $0.08 Jan. 8, 2019 2,503,858 Acquired
Dec. 31, 2008 CTSO Stock Option Common Stock (15,000) $0.08 Dec. 31, 2018 15,000 Acquired

Exercise/conversion price is blank when not applicable (e.g. RSUs).

Initial ownership (Form 3) 2 holdings

Securities held when first becoming an insider, per SEC Form 3.

Date Ticker Security Shares Ownership
Aug. 22, 2008 CTSO Series B Convertible Preferred→ Common Stock — Direct
Aug. 22, 2008 CTSO Series B Convertible Preferred→ Common Stock — Indirect

Compensation (DEF 14A)

Matched by name from proxy statements (DEF 14A) — verify against the filing.

CTSO

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $502,165 $87,804 $105,600 $100,862 — — $12,000 $808,431
2024 $359,352 $266,775 $91,680 $169,888 — — $12,000 $899,695
2020 $455,520 $260,557 $361,800 $298,313 — — $12,000 $1,388,190

Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.