Douglas J Swirsky

CIK 1375884 · View on SEC EDGAR ↗

Insider

First SEC filing: March 19, 2026 · Latest: March 19, 2026

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Insider transactions

0 buys (P) 1 sells (S) Net: $-8,316 + 18 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

18 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
March 17, 2026 MXCT S 10,142 $0.82 $8,316 151,669 Direct -6.27% Disposed 68.3% (price as of 2026-08-21)
Aug. 13, 2025 MXCT P 50,000 $1.29 $64,500 161,811 Direct +44.72% Acquired 7.0% (price as of 2026-08-21)
March 18, 2025 MXCT S 6,939 $3.18 $22,066 111,811 Direct -5.84% Disposed -56.6% (price as of 2026-08-21)
Sept. 14, 2021 CLRB P 25,000 $1.04 $26,000 25,000 Direct — Acquired -99.2% (price as of 2026-08-21)
Jan. 29, 2019 IRD P 50,000 $0.63 $31,500 50,000 Direct — Acquired -86.1% (price as of 2026-08-21)

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 7, 2026 CLRB Stock option (right to buy) Common stock (37,500) $2.70 July 7, 2036 37,500 Acquired
March 14, 2025 MXCT Employee Stock Option (right to buy) Common Stock (150,000) $3.29 March 13, 2035 150,000 Acquired
Feb. 14, 2025 CLRB Stock option (right to buy) Common Stock (90,000) $0.29 Feb. 14, 2035 90,000 Acquired
June 14, 2024 CLRB Stock option (right to buy) Common Stock (90,000) $2.58 Dec. 22, 2033 90,000 Acquired
March 15, 2024 MXCT Employee Stock Option (right to buy) Common Stock (225,000) $4.31 March 14, 2034 225,000 Acquired
June 28, 2023 CLRB Stock option (right to buy) Common Stock (37,500) $1.85 June 28, 2033 37,500 Acquired
March 27, 2023 MXCT Employee Stock Option (right to buy) Common Stock (350,000) $4.11 March 26, 2033 350,000 Acquired
June 24, 2022 CLRB Stock option (right to buy) Common Stock — June 24, 2032 11,700 Acquired
June 30, 2021 CLRB Stock option (right to buy) Common Stock (117,000) $1.19 June 30, 2031 117,000 Acquired
Sept. 1, 2020 MTVA Non-qualified stock option (right to buy) Common Stock (60,000) $6.04 Sept. 1, 2030 60,000 Acquired
June 24, 2020 CLRB Stock option (right to buy) Common Stock (80,000) $1.28 June 24, 2030 80,000 Acquired
June 13, 2019 CLRB Stock option (right to buy) Common Stock (9,750) $2.15 June 13, 2029 9,750 Acquired
Nov. 14, 2018 IRD Stock Option (right to buy) Common Stock (500,000) $1.09 Nov. 14, 2028 500,000 Acquired
Oct. 12, 2018 CLRB Stock option (right to buy) Common Stock (19,500) $2.61 Oct. 12, 2028 19,500 Acquired
Jan. 2, 2018 IRD Stock Option (right to buy) Common Stock (250,000) $2.10 Jan. 2, 2028 250,000 Acquired
May 31, 2017 CLRB Stock option (right to buy) Common Stock (10,000) $1.74 May 31, 2027 10,000 Acquired

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

Compensation (DEF 14A)

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

IRD

President & CEO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2020 $343,542 — — — — — $1,228,986 $1,572,528

MXCT

CFO
Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2025 $491,000 — $246,750 $269,914 $201,893 — $15,500 $1,225,057
2023 $326,129 — — $684,923 $161,500 — $17,382 $1,189,934

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