Barbara Kosacz
CIK 1763316 · View on SEC EDGAR ↗
Insider
First SEC filing: March 8, 2021 · Latest: March 8, 2021
On this page
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net:
$0
+ 22 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 |
|---|---|---|---|---|---|---|---|---|---|
| July 14, 2026 | XOMAP | D | 9,763 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | D | 10,967 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | D | 8,996 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | D | 5,101 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | D | 6,152 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | D | 8,167 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | D | 19,979 | — | — | 0 Direct | -100.00% | Disposed | |
| July 14, 2026 | XOMAP | J | 6,269 | — | — | 0 Direct | -100.00% | Disposed | |
| June 23, 2026 | LONA | A | 28,000 | — | — | 28,000 Direct | — | Acquired | (price as of 2026-08-20) |
| May 21, 2026 | XOMA | A | 3,586 | — | — | 9,557 Direct | +60.06% | Acquired | |
| May 21, 2025 | XOMA | A | 5,971 | — | — | 5,971 Direct | — | Acquired | |
| May 21, 2025 | XOMA | A | 5,971 | — | — | 5,971 Direct | — | Acquired | |
| May 15, 2024 | XOMA | A | 9,763 | — | — | 9,763 Direct | — | Acquired | |
| May 19, 2023 | LONA | A | 20,900 | — | — | 20,900 Direct | — | Acquired | (price as of 2026-08-20) |
| May 17, 2023 | XOMA | A | 10,967 | — | — | 10,967 Direct | — | Acquired | |
| May 20, 2022 | LONA | A | 13,871 | — | — | 13,871 Direct | — | Acquired | (price as of 2026-08-20) |
| May 18, 2022 | XOMA | A | 8,996 | — | — | 8,996 Direct | — | Acquired | |
| May 19, 2021 | XOMA | A | 5,101 | — | — | 5,101 Direct | — | Acquired | |
| March 4, 2021 | LONA | A | 27,742 | — | — | 27,742 Direct | — | Acquired | (price as of 2026-08-20) |
| May 20, 2020 | XOMA | A | 6,152 | — | — | 6,152 Direct | — | Acquired | |
| May 16, 2019 | XOMA | A | 8,167 | — | — | 8,167 Direct | — | Acquired | |
| Jan. 1, 2019 | XOMA | A | 19,979 | — | — | 19,979 Direct | — | Acquired |
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 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (9,763) | $24.71 | May 15, 2034 | 9,763 | Disposed |
| July 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (10,967) | $21.39 | May 17, 2033 | 10,967 | Disposed |
| July 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (8,996) | $17.86 | May 18, 2032 | 8,996 | Disposed |
| July 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (5,101) | $31.04 | May 19, 2031 | 5,101 | Disposed |
| July 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (6,152) | $21.27 | May 20, 2030 | 6,152 | Disposed |
| July 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (8,167) | $15.59 | May 16, 2029 | 8,167 | Disposed |
| July 14, 2026 | XOMAP | Stock Option (Right to Buy) | Common Stock (19,979) | $12.65 | Jan. 1, 2029 | 19,979 | Disposed |
| June 23, 2026 | LONA | Stock Option (Right to Buy) | Common Stock (28,000) | $8.35 | June 22, 2036 | 28,000 | Acquired |
| May 15, 2024 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (9,763) | $24.71 | May 15, 2034 | 9,763 | Acquired |
| May 19, 2023 | LONA | Stock Option (Right to Buy) | Common Stock (20,900) | $2.89 | May 18, 2033 | 20,900 | Acquired |
| May 17, 2023 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (10,967) | $21.39 | May 17, 2033 | 10,967 | Acquired |
| May 20, 2022 | LONA | Stock Option (Right to Buy) | Common Stock (13,871) | $8.93 | May 19, 2032 | 13,871 | Acquired |
| May 18, 2022 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (8,996) | $17.86 | May 18, 2032 | 8,996 | Acquired |
| May 19, 2021 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (5,101) | $31.04 | May 19, 2031 | 5,101 | Acquired |
| March 4, 2021 | LONA | Stock Option (Right to Buy) | Common Stock (27,742) | $19.29 | March 3, 2031 | 27,742 | Acquired |
| May 20, 2020 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (6,152) | $21.27 | May 20, 2030 | 6,152 | Acquired |
| May 16, 2019 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (8,167) | $15.59 | May 16, 2029 | 8,167 | Acquired |
| Jan. 1, 2019 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares (19,979) | $12.65 | Jan. 1, 2029 | 19,979 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 2 holdings
Securities held when first becoming an insider, per SEC Form 3.