Timothy P Walbert
Insider
First SEC filing: June 4, 2026 · Latest: June 4, 2026
Insider at
Insider transactions
0 buys (P)
0 sells (S)
Net: $0
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 17, 2026 | KARD | A | 57,573 | · | · | 57,573 Direct | · | Acquired | (price as of 2026-10-02) |
| June 17, 2026 | KARD | A | 20,706 | · | · | 20,706 Direct | · | Acquired | (price as of 2026-10-02) |
| June 15, 2026 | MIRM | A | 1,980 | · | · | 1,980 Direct | · | Acquired | (price as of 2026-10-02) |
| June 15, 2026 | MIRM | A | 3,772 | · | · | 3,772 Direct | · | Acquired | (price as of 2026-10-02) |
| June 2, 2026 | BMRN | A | 7,490 | · | · | 17,270 Direct | +76.58% | Acquired | (price as of 2026-10-02) |
| May 29, 2026 | MIRM | M | 3,977 | · | · | 9,680 Direct | +69.74% | Acquired | (price as of 2026-10-02) |
| May 29, 2026 | MIRM | M | 3,977 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 7, 2026 | ODTX | A | 27,393 | · | · | 27,393 Direct | · | Acquired | (price as of 2026-10-02) |
| June 12, 2025 | IPSC | A | 44,000 | · | · | 44,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 9, 2025 | SGMT | A | 32,250 | · | · | 32,250 Direct | · | Acquired | (price as of 2026-10-02) |
| May 29, 2025 | MIRM | M | 5,703 | · | · | 5,703 Direct | · | Acquired | (price as of 2026-10-02) |
| May 29, 2025 | MIRM | M | 5,703 | · | · | 0 Direct | -100.00% | Disposed | (price as of 2026-10-02) |
| May 29, 2025 | MIRM | A | 6,268 | · | · | 6,268 Direct | · | Acquired | (price as of 2026-10-02) |
| May 29, 2025 | MIRM | A | 3,977 | · | · | 3,977 Direct | · | Acquired | (price as of 2026-10-02) |
| May 20, 2025 | BMRN | A | 6,650 | · | · | 9,780 Direct | +212.46% | Acquired | (price as of 2026-10-02) |
| Feb. 24, 2025 | BMRN | A | 3,130 | · | · | 3,130 Direct | · | Acquired | (price as of 2026-10-02) |
| June 20, 2024 | IPSC | A | 44,000 | · | · | 44,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 5, 2024 | MIRM | A 10b5-1 | 8,779 | · | · | 8,779 Direct | · | Acquired | (price as of 2026-10-02) |
| June 5, 2024 | MIRM | A 10b5-1 | 5,703 | · | · | 5,703 Direct | · | Acquired | (price as of 2026-10-02) |
| June 5, 2024 | SGMT | A | 9,279 | · | · | 9,279 Direct | · | Acquired | (price as of 2026-10-02) |
| April 1, 2024 | SGMT | A | 73,014 | · | · | 73,014 Direct | · | Acquired | (price as of 2026-10-02) |
| June 27, 2023 | IPSC | A | 44,000 | · | · | 44,000 Direct | · | Acquired | (price as of 2026-10-02) |
| June 12, 2023 | MIRM | A | 1,417 | · | · | 1,417 Direct | · | Acquired | (price as of 2026-10-02) |
| April 5, 2023 | MIRM | A | 34,000 | · | · | 34,000 Direct | · | Acquired | (price as of 2026-10-02) |
| Oct. 1, 2022 | IPSC | A | 39,744 | · | · | 39,744 Direct | · | Acquired | (price as of 2026-10-02) |
| May 18, 2022 | AUPH | A | 8,733 | · | · | 8,733 Direct | · | Acquired | (price as of 2026-10-02) |
| May 18, 2022 | AUPH | A | 14,612 | · | · | 14,612 Direct | · | Acquired | (price as of 2026-10-02) |
| June 14, 2021 | AUPH | A | 31,347 | · | · | 31,347 Direct | · | Acquired | (price as of 2026-10-02) |
| June 2, 2021 | XCUR | A | 50,000 | · | · | 50,000 Direct | · | Acquired | (price as of 2026-10-02) |
| May 20, 2020 | ASRT | A | 211,111 | · | · | 211,111 Direct | · | Acquired | |
| May 20, 2020 | ASRT | A | 49,143 | · | · | 49,143 Direct | · | Acquired | |
| July 22, 2019 | XCUR | A | 43,386 | · | · | 43,386 Direct | · | Acquired | (price as of 2026-10-02) |
| Feb. 10, 2017 | XOMA | A | 8,000 | · | · | 8,000 Direct | · | Acquired | |
| July 21, 2016 | XOMA | A | 60,532 | · | · | 60,532 Direct | · | Acquired | |
| July 21, 2016 | XOMA | A | 48,246 | · | · | 129,314 Direct | +59.51% | Acquired | |
| May 28, 2016 | XOMA | M | 2,800 | · | · | 0 Direct | -100.00% | Disposed | |
| May 28, 2016 | XOMA | M | 2,800 | · | · | 81,068 Direct | +3.58% | Acquired | |
| May 28, 2015 | XOMA | M | 2,800 | · | · | 0 Direct | -100.00% | Disposed | |
| May 28, 2015 | XOMA | M | 2,800 | · | · | 2,800 Direct | -50.00% | Disposed | |
| May 28, 2015 | XOMA | M | 2,800 | · | · | 78,268 Direct | +3.71% | Acquired | |
| May 28, 2015 | XOMA | M | 2,800 | · | · | 75,468 Direct | +3.85% | Acquired | |
| May 21, 2015 | XOMA | A | 36,873 | $3.39 | $124,999 | 36,873 Direct | · | Acquired | |
| May 21, 2015 | XOMA | A | 36,873 | · | · | 72,668 Direct | +103.01% | Acquired | |
| Nov. 13, 2014 | XOMA | M | 4,498 | · | · | 0 Direct | -100.00% | Disposed | |
| Nov. 13, 2014 | XOMA | M | 4,498 | · | · | 35,795 Direct | +14.37% | Acquired | |
| Sept. 12, 2014 | XOMA | A | 7,000 | $4.73 | $33,110 | 7,000 Direct | · | Acquired | |
| Sept. 12, 2014 | XOMA | A | 5,500 | · | · | 31,297 Direct | +21.32% | Acquired | |
| May 28, 2014 | XOMA | M | 2,800 | · | · | 2,800 Direct | -50.00% | Disposed | |
| May 28, 2014 | XOMA | M | 2,800 | · | · | 5,600 Direct | -33.33% | Disposed | |
| May 28, 2014 | XOMA | M | 2,800 | · | · | 25,797 Direct | +12.18% | Acquired | |
| May 28, 2014 | XOMA | M | 2,800 | · | · | 22,997 Direct | +13.86% | Acquired | |
| May 22, 2014 | XOMA | A | 11,600 | $3.87 | $44,892 | 11,600 Direct | · | Acquired | |
| May 22, 2014 | XOMA | A | 8,400 | · | · | 20,197 Direct | +71.20% | Acquired | |
| Nov. 13, 2013 | XOMA | M | 4,498 | · | · | 1,102 Direct | -80.32% | Disposed | |
| Nov. 13, 2013 | XOMA | M | 4,498 | · | · | 11,797 Direct | +61.62% | Acquired | |
| May 28, 2013 | XOMA | M | 2,800 | · | · | 7,299 Direct | +62.24% | Acquired | |
| May 28, 2013 | XOMA | M | 2,800 | · | · | 5,600 Direct | -33.33% | Disposed | |
| May 23, 2013 | XOMA | A | 11,600 | $4.13 | $47,908 | 11,600 Direct | · | Acquired | |
| May 23, 2013 | XOMA | A | 8,400 | · | · | 8,400 Direct | · | Acquired | |
| Nov. 13, 2012 | XOMA | M | 4,499 | · | · | 4,499 Direct | · | Acquired | |
| Nov. 13, 2012 | XOMA | M | 4,499 | · | · | 8,996 Direct | -33.34% | Disposed | |
| May 24, 2012 | XOMA | A | 11,600 | $2.36 | $27,376 | 11,600 Direct | · | Acquired | |
| May 24, 2012 | XOMA | A | 8,400 | · | · | 8,400 Direct | · | Acquired | |
| Oct. 27, 2011 | XOMA | A | 17,544 | $1.69 | $29,649 | 17,544 Direct | · | Acquired | |
| Oct. 27, 2011 | XOMA | A | 13,495 | · | · | 13,495 Direct | · | Acquired | |
| May 26, 2011 | XOMA | A | 5,000 | $3.03 | $15,150 | 5,000 Direct | · | Acquired | |
| Jan. 7, 2011 | XOMA | A | 7,800 | $5.83 | $45,474 | 7,800 Direct | · | Acquired | |
| Nov. 12, 2010 | XOMA | A | 12,000 | $2.46 | $29,520 | 12,000 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 |
|---|---|---|---|---|---|---|---|
| June 17, 2026 | KARD | Stock Option (Right to Buy) | Common Stock | $16.00 | June 16, 2036 | 57,573 | Acquired |
| June 15, 2026 | MIRM | Restricted Stock Units | Common Stock | · | · | 1,980 | Acquired |
| June 15, 2026 | MIRM | Stock Option (right to buy) | Common Stock | $101.00 | June 14, 2036 | 3,772 | Acquired |
| May 29, 2026 | MIRM | Restricted Stock Units | Common Stock | · | · | 3,977 | Disposed |
| May 7, 2026 | ODTX | Stock Option (Right to Buy) | Common Stock | $18.00 | May 6, 2036 | 27,393 | Acquired |
| June 12, 2025 | IPSC | Stock Option (right to buy) | Common Stock | $0.60 | June 12, 2035 | 44,000 | Acquired |
| June 9, 2025 | SGMT | Stock Option (Right to Buy) | Series A Common Stock | $5.33 | June 8, 2035 | 32,250 | Acquired |
| May 29, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 5,703 | Disposed |
| May 29, 2025 | MIRM | Stock Option (right to buy) | Common Stock | $44.00 | May 28, 2035 | 6,268 | Acquired |
| May 29, 2025 | MIRM | Restricted Stock Units | Common Stock | · | · | 3,977 | Acquired |
| June 20, 2024 | IPSC | Stock Option (right to buy) | Common Stock | $2.69 | June 20, 2034 | 44,000 | Acquired |
| June 5, 2024 | MIRM | Stock Option (right to buy) | Common Stock | $26.30 | June 4, 2034 | 8,779 | Acquired |
| June 5, 2024 | MIRM | Restricted Stock Units | Common Stock | · | · | 5,703 | Acquired |
| June 5, 2024 | SGMT | Stock Option (Right to Buy) | Series A Common Stock | $4.64 | June 4, 2034 | 9,279 | Acquired |
| April 1, 2024 | SGMT | Stock Option (Right to Buy) | Series A Common Stock | $5.23 | March 31, 2034 | 73,014 | Acquired |
| June 27, 2023 | IPSC | Stock Option (right to buy) | Common Stock | $3.19 | June 27, 2024 | 44,000 | Acquired |
| June 12, 2023 | MIRM | Stock Option (right to buy) | Common Stock | $28.97 | June 11, 2033 | 1,417 | Acquired |
| April 5, 2023 | MIRM | Stock Option (right to buy) | Common Stock | $24.71 | April 4, 2033 | 34,000 | Acquired |
| Oct. 1, 2022 | IPSC | Stock Option (right to buy) | Common Stock | $9.89 | Oct. 1, 2032 | 39,744 | Acquired |
| May 18, 2022 | AUPH | Restricted Stock Unit | Common Shares | · | · | 8,733 | Acquired |
| May 18, 2022 | AUPH | Stock Option (right to buy) | Common Stock | $11.45 | May 18, 2032 | 14,612 | Acquired |
| June 14, 2021 | AUPH | Stock Option (right to buy) | Common Shares | $12.86 | June 14, 2031 | 31,347 | Acquired |
| June 2, 2021 | XCUR | Stock Option (right to buy) | Common Stock | $1.71 | June 1, 2031 | 50,000 | Acquired |
| July 22, 2019 | XCUR | Stock Option (right to buy) | Common Stock | $2.32 | July 21, 2029 | 43,386 | Acquired |
| Feb. 10, 2017 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $4.03 | Feb. 10, 2027 | 8,000 | Acquired |
| July 21, 2016 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $0.56 | July 21, 2026 | 60,532 | Acquired |
| May 28, 2016 | XOMA | Restricted Stock Units | Common Shares | · | May 28, 2013 | 2,800 | Disposed |
| May 28, 2015 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2015 | 2,800 | Disposed |
| May 28, 2015 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2013 | 2,800 | Disposed |
| May 21, 2015 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $3.39 | May 21, 2025 | 36,873 | Acquired |
| Nov. 13, 2014 | XOMA | Restricted Stock Units | Common Shares | · | · | 4,498 | Disposed |
| Sept. 12, 2014 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $4.73 | Sept. 12, 2024 | 7,000 | Acquired |
| May 28, 2014 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2015 | 2,800 | Disposed |
| May 28, 2014 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2013 | 2,800 | Disposed |
| May 22, 2014 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $3.87 | May 22, 2024 | 11,600 | Acquired |
| Nov. 13, 2013 | XOMA | Restricted Stock Units | Common Shares | · | May 28, 2015 | 4,498 | Disposed |
| May 28, 2013 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2015 | 2,800 | Disposed |
| May 23, 2013 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $4.13 | May 23, 2023 | 11,600 | Acquired |
| May 23, 2013 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2013 | 8,400 | Acquired |
| Nov. 13, 2012 | XOMA | Restricted Stock Units | Common Shares | · | · | 4,499 | Disposed |
| May 24, 2012 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $2.36 | May 24, 2022 | 11,600 | Acquired |
| May 24, 2012 | XOMA | Restricted Stock Units | Common Shares | $0.00 | May 28, 2015 | 8,400 | Acquired |
| Oct. 27, 2011 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $1.69 | Oct. 27, 2021 | 17,544 | Acquired |
| Oct. 27, 2011 | XOMA | Restricted Stock Units | Common Shares | $0.00 | · | 13,495 | Acquired |
| May 26, 2011 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $3.03 | May 26, 2021 | 5,000 | Acquired |
| Jan. 7, 2011 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $5.83 | Jan. 7, 2021 | 7,800 | Acquired |
| Nov. 12, 2010 | XOMA | Non-Qualified Share Option (right to buy) | Common Shares | $2.46 | Nov. 12, 2020 | 12,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 11 holdings
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Aug. 6, 2026 | LTGO | Director Stock Option (right to buy) | 259,770 | Direct |
| Aug. 6, 2026 | LTGO | Director Stock Option (right to buy) | 38,914 | Direct |
| Aug. 6, 2026 | LTGO | Director Stock Option (right to buy) | 31,135 | Direct |
| May 7, 2026 | ODTX | Stock Option (Right to Buy) | 97,024 | Direct |
| May 7, 2026 | ODTX | Stock Option (Right to Buy) | 74,604 | Direct |
| May 7, 2026 | ODTX | Stock Option (Right to Buy) | 24,868 | Direct |
| March 7, 2025 | BMRN | Common Stock | · | Indirect |
| April 3, 2024 | SGMT | Series A Common Stock | 2,200 | Direct |
| Jan. 4, 2021 | AUPH | Stock Option (right to buy) | 50,000 | Direct |
| Jan. 4, 2021 | AUPH | Stock Option (right to buy) | 30,000 | Direct |
| Nov. 15, 2010 | XOMA | Non-Qualified Share Option (right to buy) | 12,000 | Direct |