Jean I Liu
CIK 1241357 · View on SEC EDGAR ↗
Insider
First SEC filing: March 16, 2026 · Latest: March 16, 2026
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
0 buys (P)
0 sells (S)
Net:
$0
+ 16 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
No open-market trades on record; showing all filings.
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| June 30, 2026 | CNTB | A | 6,718 | — | — | 11,779 Direct | +132.74% | Acquired | (price as of 2026-08-21) |
| June 26, 2026 | ERAS | A | 29,888 | — | — | 29,888 Direct | — | Acquired | (price as of 2026-08-21) |
| March 31, 2026 | CNTB | A | 5,061 | — | — | 5,061 Direct | — | Acquired | (price as of 2026-08-21) |
| Jan. 1, 2026 | ERAS | A | 20,617 | — | — | 20,617 Direct | — | Acquired | (price as of 2026-08-21) |
| June 24, 2025 | ERAS | A | 120,000 | — | — | 120,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Jan. 1, 2025 | ERAS | A | 24,939 | — | — | 24,939 Direct | — | Acquired | (price as of 2026-08-21) |
| June 20, 2024 | ERAS | A | 60,000 | — | — | 60,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Jan. 1, 2024 | ERAS | A | 35,482 | — | — | 35,482 Direct | — | Acquired | (price as of 2026-08-21) |
| June 22, 2023 | ERAS | A | 60,000 | — | — | 60,000 Direct | — | Acquired | (price as of 2026-08-21) |
| April 25, 2022 | ERAS | A | 80,000 | — | — | 80,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 6, 2014 | HALO | A | 31,500 | — | — | 31,500 Direct | — | Acquired | (price as of 2026-08-21) |
| Feb. 6, 2014 | HALO | A | 50,000 | $13.10 | $655,000 | 50,000 Direct | — | Acquired | 717.7% (price as of 2026-08-21) |
| Feb. 4, 2014 | HALO | M | 7,500 | — | — | 22,500 Direct | -25.00% | Disposed | (price as of 2026-08-21) |
| Feb. 4, 2014 | HALO | M | 4,682 | — | — | 20,869 Direct | +28.92% | Acquired | (price as of 2026-08-21) |
| Feb. 2, 2014 | HALO | M | 13,889 | — | — | 41,667 Direct | -25.00% | Disposed | (price as of 2026-08-21) |
| Feb. 2, 2014 | HALO | M | 8,360 | — | — | 16,187 Direct | +106.81% | Acquired | (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 |
|---|---|---|---|---|---|---|---|
| June 26, 2026 | ERAS | Stock option (right to buy) | Common Stock (29,888) | $16.01 | June 26, 2036 | 29,888 | Acquired |
| Jan. 1, 2026 | ERAS | Stock Option (right to buy) [F1] | Common Stock (20,617) | $3.72 | Jan. 1, 2036 | 20,617 | Acquired |
| June 24, 2025 | ERAS | Stock option (right to buy) | Common Stock (120,000) | $1.45 | June 23, 2035 | 120,000 | Acquired |
| Jan. 1, 2025 | ERAS | Stock Option (right to buy) [F1] | Common Stock (24,939) | $2.51 | Jan. 1, 2035 | 24,939 | Acquired |
| June 20, 2024 | ERAS | Stock Option (right to buy) | Common Stock (60,000) | $2.03 | June 19, 2034 | 60,000 | Acquired |
| Jan. 1, 2024 | ERAS | Stock Option (right to buy) | Common Stock | $2.13 | Jan. 1, 2034 | 35,482 | Acquired |
| June 22, 2023 | ERAS | Stock Option (right to buy) | Common Stock (60,000) | $2.66 | June 21, 2033 | 60,000 | Acquired |
| April 25, 2022 | ERAS | Stock Option (Right to Buy) | Common Stock (80,000) | $8.49 | April 24, 2032 | 80,000 | Acquired |
| Feb. 6, 2014 | HALO | Restricted Stock Units | Common Stock (31,500) | $0.00 | Feb. 6, 2024 | 31,500 | Acquired |
| Feb. 6, 2014 | HALO | Option to Purchase Common Stock | Common Stock (50,000) | $13.10 | Feb. 6, 2024 | 50,000 | Acquired |
| Feb. 4, 2014 | HALO | Restricted Stock Units | Common Stock (7,500) | $0.00 | Feb. 4, 2023 | 7,500 | Disposed |
| Feb. 2, 2014 | HALO | Restricted Stock Units | Common Stock (13,889) | $0.00 | Feb. 2, 2022 | 13,889 | Disposed |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 7 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| March 16, 2026 | CNTB | Stock Option (Right to Buy)→ Ordinary Shares (34,000) | 34,000 | Direct |
| March 16, 2026 | CNTB | Stock Option (Right to Buy)→ Ordinary Shares (21,269) | 21,269 | Direct |
| March 16, 2026 | CNTB | Stock Option (Right to Buy)→ Ordinary Shares (21,269) | 21,269 | Direct |
| March 16, 2026 | CNTB | Stock Option (Right to Buy)→ Ordinary Shares (26,450) | 26,450 | Direct |
| March 16, 2026 | CNTB | Stock Option (Right to Buy)→ Ordinary Shares (60,000) | 60,000 | Direct |
| March 16, 2026 | CNTB | Stock Option (Right to Buy)→ Ordinary Shares (60,000) | 60,000 | Direct |
| Dec. 12, 2011 | HALO | Option to Purchase Common Stock→ Common Stock (200,000) | 200,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2011 | $50,000 | — | — | — | — | — | $14,598 | $1,047,538 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.