Larry L Helm
CIK 1195351 · View on SEC EDGAR ↗
First SEC filing: Oct. 19, 2021 · Latest: Oct. 19, 2021
On this page
- Insider at Companies where this person is a reporting insider.
- Insider transactions Every share this person bought or sold, from Form 4 filings.
- Derivatives Options and other derivative holdings reported by this person.
- Initial holdings The stakes this person held when they first started reporting.
- Compensation Executive pay disclosed in company proxy statements.
Insider at
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 |
|---|---|---|---|---|---|---|---|---|---|
| May 2, 2022 | TCBIO | P | 5,700 | $52.25 | $297,825 | 77,858 Direct | +7.90% | Acquired | -60.8% (price as of 2026-08-20) |
| Oct. 22, 2021 | TCBIO | P | 5,000 | $60.52 | $302,600 | 70,781 Direct | +7.60% | Acquired | -66.2% (price as of 2026-08-20) |
| Aug. 18, 2020 | TCBIO | P | 30,000 | $33.12 | $993,600 | 54,076 Direct | +124.61% | Acquired | -38.2% (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 |
|---|---|---|---|---|---|---|---|
| Oct. 22, 2021 | ZEOWW | Class B Ordinary Shares [F1] | Class A ordinary shares (23,000) | — | — | 23,000 | Acquired |
| Feb. 11, 2020 | TCBIO | Stock Appreciation Rights | Common Stock (3,000) | $18.52 | May 18, 2020 | 3,000 | Disposed |
| April 24, 2019 | TCBIO | Stock Appreciation Rights | Common Stock (3,000) | $14.17 | May 19, 2019 | 3,000 | Disposed |
| March 6, 2018 | TCBIO | Stock Appreciation Rights | Common Stock (3,000) | $18.67 | May 19, 2018 | 3,000 | Disposed |
| April 27, 2017 | TCBIO | Common Stock | Common Stock (2,000) | $22.47 | July 23, 2017 | 2,000 | Disposed |
| May 16, 2016 | TCBIO | Stock Appreciation Rights | Common Stock (2,000) | $23.00 | May 16, 2016 | 2,000 | Disposed |
| May 19, 2009 | TCBIO | Stock Appreciation Rights | Common Stock (3,000) | $14.17 | May 19, 2019 | 3,000 | Acquired |
| May 19, 2008 | TCBIO | Stock Appreciation Rights | Common Stock (3,000) | $18.67 | May 19, 2018 | 3,000 | Acquired |
| May 19, 2008 | TCBIO | Stock Appreciation Rights | Common Stock (2,000) | $18.67 | May 19, 2018 | 2,000 | Acquired |
| July 24, 2007 | TCBIO | Stock Appreciation Rights | Common Stock (2,000) | $22.47 | July 24, 2017 | 2,000 | Acquired |
| May 16, 2006 | TCBIO | Restricted Stock Units | Common Stock (100) | — | — | 100 | Disposed |
| May 16, 2006 | TCBIO | Stock Appreciation Rights | Common Stock (2,000) | $23.00 | May 16, 2016 | 2,000 | Acquired |
| May 16, 2006 | TCBIO | Restricted Stock Units | Common Stock (500) | — | — | 500 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Oct. 19, 2021 | ZEOWW | Class B ordinary shares→ Class A ordinary shares (115,000) | 115,000 | Direct |
Compensation (DEF 14A)
Matched by name from proxy statements (DEF 14A) — verify against the filing.
| Fiscal year | Salary | Bonus | Stock awards | Option awards | Non-equity incentive | Pension change | Other | Total |
|---|---|---|---|---|---|---|---|---|
| 2021 | $368,269 | — | $750,056 | — | — | — | $78,233 | $1,196,558 |
| 2020 | $600,000 | — | $65,018 | — | — | — | $269,600 | $934,618 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.