Vladimir Vexler
CIK 1759506 · View on SEC EDGAR ↗
Insider
First SEC filing: Jan. 15, 2019 · Latest: Jan. 15, 2019
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
+ 7 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 |
|---|---|---|---|---|---|---|---|---|---|
| March 31, 2023 | CHRS | F | 16,278 | $6.84 | $111,342 | 116,361 Direct | -12.27% | Disposed | -80.3% (price as of 2026-08-21) |
| Jan. 11, 2019 | CHRS | A | 15,562 | — | — | 23,390 Direct | +198.80% | Acquired | (price as of 2026-08-21) |
| Jan. 11, 2019 | CHRS | F | 5,916 | $12.37 | $73,181 | 17,474 Direct | -25.29% | Disposed | -89.1% (price as of 2026-08-21) |
| Jan. 11, 2019 | CHRS | A | 126,000 | — | — | 126,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Nov. 16, 2018 | CHRS | A | 35,000 | — | — | 35,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Nov. 16, 2018 | CHRS | A | 35,000 | — | — | 35,000 Direct | — | Acquired | (price as of 2026-08-21) |
| Nov. 16, 2018 | CHRS | A | 35,000 | — | — | 35,000 Direct | — | 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 |
|---|---|---|---|---|---|---|---|
| Jan. 11, 2019 | CHRS | Stock Option (Right to Buy) | Common Stock (126,000) | $12.37 | Jan. 11, 2029 | 126,000 | Acquired |
| Nov. 16, 2018 | CHRS | Stock Option (Right to Buy) | Common Stock (35,000) | $12.27 | Nov. 16, 2028 | 35,000 | Acquired |
| Nov. 16, 2018 | CHRS | Stock Option (Right to Buy) | Common Stock (35,000) | $12.27 | Nov. 16, 2028 | 35,000 | Acquired |
| Nov. 16, 2018 | CHRS | Stock Option (Right to Buy) | Common Stock (35,000) | $12.27 | Nov. 16, 2028 | 35,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 27 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Jan. 15, 2019 | CHRS | Common Stock, $0.0001 par value | — | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (71,982) | 71,982 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (24,618) | 24,618 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (50,000) | 50,000 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 15, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (75,000) | 75,000 | Direct |
| Jan. 14, 2019 | CHRS | Common Stock, $0.0001 par value | — | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (71,982) | 71,982 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (24,618) | 24,618 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (50,000) | 50,000 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Jan. 14, 2019 | CHRS | Stock Option (right to buy)→ Common Stock (75,000) | 75,000 | Direct |
| Nov. 20, 2018 | CHRS | Common Stock, $0.0001 par value | 12,300 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (71,982) | 71,982 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (24,618) | 24,618 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (50,000) | 50,000 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (25,000) | 25,000 | Direct |
| Nov. 20, 2018 | CHRS | Stock Option (right to buy)→ Common Stock (75,000) | 75,000 | 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 |
|---|---|---|---|---|---|---|---|---|
| 2019 | $447,525 | $58,282 | — | — | $257,326 | — | $888 | $1,757,229 |
Figures from the Summary Compensation Table of the company's proxy statement (DEF 14A). Compensation is not a recommendation.