Howard Machek

CIK 1650256 · View on SEC EDGAR ↗

Insider

First SEC filing: Sept. 8, 2015 · Latest: Sept. 8, 2015

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Insider transactions

0 buys (P) 0 sells (S) Net: $0 + 92 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

92 other filings hidden
Date Ticker Code Shares Price Value Owned after Δ own A/D vs now
May 14, 2024 CENTA S 10,000 $40.05 $400,500 51,474 Direct -16.27% Disposed -5.1% (price as of 2026-08-20)
Feb. 14, 2024 CENTA S 5,000 $36.40 $182,000 59,406 Direct -7.76% Disposed 4.4% (price as of 2026-08-20)
Aug. 7, 2023 CENTA S 3,000 $42.65 $127,950 47,461 Direct -5.95% Disposed 11.3% (price as of 2026-08-20)
Aug. 25, 2020 CENTA S 9,000 $38.10 $342,900 17,248 Direct -34.29% Disposed 24.6% (price as of 2026-08-20)
May 19, 2020 CENTA S 5,000 $33.80 $169,000 22,979 Direct -17.87% Disposed 40.5% (price as of 2026-08-20)
Feb. 22, 2018 CENTA S 6,000 $38.01 $228,060 14,598 Direct -29.13% Disposed 24.9% (price as of 2026-08-20)
Aug. 9, 2016 CENTA S 9,500 $25.05 $237,975 15,996 Direct -37.26% Disposed 89.6% (price as of 2026-08-20)
May 9, 2016 CENTA S 6,000 $18.75 $112,500 22,021 Direct -21.41% Disposed 153.3% (price as of 2026-08-20)

Showing latest 100 of 106 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
Jan. 30, 2026 CENTA Stock Option (Right to Buy) Class A Common Stock (4,255) $22.80 Feb. 10, 2026 4,255 Disposed
May 13, 2024 CENTA Stock Option (Right to Buy) Class A Common Stock [F4] — Feb. 10, 2026 10,000 Disposed
Feb. 13, 2024 CENTA Stock Option (Right to Buy) Class A Common Stock [F4] — Feb. 13, 2025 4,681 Disposed
Dec. 15, 2023 CENTA Stock Option (Right to Buy) Class A Common Stock (6,000) $27.20 Feb. 13, 2025 6,000 Disposed
Aug. 4, 2023 CENTA Stock Option (Right to Buy) Class A Common Stock (7,221) $36.70 Jan. 19, 2024 7,221 Disposed
Nov. 11, 2022 CENTA Stock Option (Right to Buy) Class A Common Stock (8,330) $30.94 Jan. 20, 2023 8,330 Disposed
Jan. 27, 2022 CENTA Stock Option (Right to Buy) Class A Common Stock (9,000) $13.82 Jan. 29, 2022 9,000 Disposed
March 11, 2021 CENTA Stock Option (Right to Buy) Class A Common Stock (9,000) $13.82 Jan. 29, 2022 9,000 Disposed
Feb. 9, 2021 CENTA Stock Option (Right to Buy) Class A Common Stock (3,975) $44.02 Feb. 9, 2027 3,975 Acquired
Aug. 25, 2020 CENTA Stock Option (Right to Buy) Class A Common Stock (9,000) $10.63 March 31, 2021 9,000 Disposed
May 19, 2020 CENTA Stock Option (Right to Buy) Class A Common Stock (9,000) $10.63 March 31, 2021 9,000 Disposed
Feb. 10, 2020 CENTA Stock Option (Right to Buy) Class A Common Stock (11,404) $28.50 Feb. 10, 2026 11,404 Acquired
Feb. 13, 2019 CENTA Stock Option (Right to Buy) Class A Common Stock (9,745) $27.20 Feb. 13, 2025 9,745 Acquired
Feb. 4, 2019 CENTA Stock Option (Right to Buy) Class A Common Stock (8,000) $6.43 March 31, 2019 8,000 Disposed
Jan. 19, 2018 CENTA Stock Option (Right to Buy) Class A Common Stock (7,221) $36.70 Jan. 19, 2024 7,221 Acquired
Sept. 26, 2017 CENTA Stock Option (Right to Buy) Class A Common Stock (5,000) $6.43 March 31, 2019 5,000 Disposed
March 17, 2017 CENTA Stock Option (Right to Buy) Class A Common Stock (5,000) $6.43 March 31, 2019 5,000 Disposed
Jan. 20, 2017 CENTA Stock Option (Right to Buy) Class A Common Stock (8,330) $30.94 Jan. 20, 2023 8,330 Acquired
Aug. 9, 2016 CENTA Stock Option (Right to buy) Class A Common Stock (9,000) $9.54 March 26, 2018 9,000 Disposed
May 9, 2016 CENTA Stock Option (Right to buy) Class A Common Stock (9,000) $9.54 March 26, 2018 9,000 Disposed
May 9, 2016 CENTA Stock Option (Right to buy) Class A Common Stock (3,200) $9.26 April 13, 2017 3,200 Disposed
Jan. 29, 2016 CENTA Stock Option (Right to Buy) Class A Common Stock (18,000) $13.82 Jan. 29, 2022 18,000 Acquired
Sept. 3, 2015 CENTA Stock Option (Right to Buy) Class A Common Stock (12,800) $9.26 April 13, 2017 12,800 Disposed

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

Initial ownership (Form 3) 8 holdings

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

Date Ticker Security Shares Ownership
Sept. 8, 2015 CENTA Common Stock 1,000 Direct
Sept. 8, 2015 CENTA Class A Common Stock — Direct
Sept. 8, 2015 CENTA Units - Common Stock — Indirect
Sept. 8, 2015 CENTA Units - Class A Common Stock — Indirect
Sept. 8, 2015 CENTA Stock Option (Right to Buy)→ Class A Common Stock (20,000) 20,000 Direct
Sept. 8, 2015 CENTA Stock Option (Right to Buy)→ Class A Common Stock (18,000) 18,000 Direct
Sept. 8, 2015 CENTA Stock Option (Right to Buy)→ Class A Common Stock (18,000) 18,000 Direct
Sept. 8, 2015 CENTA Stock Option (Right to Buy)→ Class A Common Stock (18,000) 18,000 Direct

Compensation (DEF 14A)

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

CENTA

Fiscal year Salary Bonus Stock awards Option awards Non-equity incentive Pension change Other Total
2017 $319,027 — — — — — $21,855 $484,437

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