Alexander Karsner
Insider
First SEC filing: Jan. 5, 2026 · Latest: Jan. 5, 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
| Date | Ticker | Code | Shares | Price | Value | Owned after | Δ own | A/D | vs now |
|---|---|---|---|---|---|---|---|---|---|
| March 12, 2026 | AMAT | A | 741 | · | · | 16,849 Direct | +4.60% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2026 | XOM | A | 2,500 | · | · | 37,500 Direct | +7.14% | Acquired | |
| March 6, 2025 | AMAT | A | 1,583 | · | · | 16,108 Direct | +10.90% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2025 | XOM | A | 2,500 | · | · | 35,000 Direct | +7.69% | Acquired | |
| March 7, 2024 | AMAT | A | 1,128 | · | · | 14,525 Direct | +8.42% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2024 | XOM | A | 2,500 | · | · | 32,500 Direct | +8.33% | Acquired | |
| March 9, 2023 | AMAT | A | 2,050 | · | · | 13,397 Direct | +18.07% | Acquired | (price as of 2026-10-05) |
| Jan. 3, 2023 | XOM | A | 2,500 | · | · | 30,000 Direct | +9.09% | Acquired | |
| March 10, 2022 | AMAT | A | 1,920 | · | · | 11,347 Direct | +20.37% | Acquired | (price as of 2026-10-05) |
| June 21, 2021 | XOM | A | 8,000 | · | · | 25,000 Direct | +47.06% | Acquired | |
| March 11, 2021 | AMAT | A | 1,919 | · | · | 9,427 Direct | +25.56% | Acquired | (price as of 2026-10-05) |
| June 22, 2020 | AMAT | S | 3,467 | $60.50 | $209,754 | 7,508 Direct | -31.59% | Disposed | 784.7% (price as of 2026-10-05) |
| June 18, 2020 | AMAT | S | 20,027 | $60.43 | $1,210,232 | 10,975 Direct | -64.60% | Disposed | 785.8% (price as of 2026-10-05) |
| March 12, 2020 | AMAT | A | 4,987 | · | · | 31,002 Direct | +19.17% | Acquired | (price as of 2026-10-05) |
| March 7, 2019 | AMAT | A | 5,988 | · | · | 26,015 Direct | +29.90% | Acquired | (price as of 2026-10-05) |
| March 8, 2018 | AMAT | A | 3,789 | · | · | 20,027 Direct | +23.33% | Acquired | (price as of 2026-10-05) |
| Aug. 23, 2017 | AMAT | S | 22,762 | $44.03 | $1,002,211 | 16,238 Direct | -58.36% | Disposed | 1115.7% (price as of 2026-10-05) |
| March 9, 2017 | AMAT | A | 6,019 | · | · | 39,000 Direct | +18.25% | Acquired | (price as of 2026-10-05) |
| March 10, 2016 | AMAT | A | 10,219 | · | · | 32,981 Direct | +44.90% | Acquired | (price as of 2026-10-05) |
| April 2, 2015 | AMAT | A | 8,980 | · | · | 22,762 Direct | +65.16% | Acquired | (price as of 2026-10-05) |
| March 19, 2014 | AMAT | S | 45,706 | $19.47 | $889,896 | 13,782 Direct | -76.83% | Disposed | 2649.2% (price as of 2026-10-05) |
| March 4, 2014 | AMAT | A | 10,615 | · | · | 59,488 Direct | +21.72% | Acquired | (price as of 2026-10-05) |
| Jan. 2, 2014 | CDXS | A | 35,416 | · | · | 78,519 Direct | +82.17% | Acquired | (price as of 2026-10-05) |
| June 25, 2013 | AMAT | S | 37,550 | $15.25 | $572,638 | 48,873 Direct | -43.45% | Disposed | 3409.9% (price as of 2026-10-05) |
| March 5, 2013 | AMAT | A | 14,556 | · | · | 86,423 Direct | +20.25% | Acquired | (price as of 2026-10-05) |
| Jan. 24, 2013 | CDXS | A | 43,103 | · | · | 43,103 Direct | · | Acquired | (price as of 2026-10-05) |
| June 6, 2012 | CDXS | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 6, 2012 | AMAT | A | 16,659 | · | · | 71,867 Direct | +30.17% | Acquired | (price as of 2026-10-05) |
| June 8, 2011 | CDXS | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
| March 8, 2011 | AMAT | A | 12,666 | · | · | 55,208 Direct | +29.77% | Acquired | (price as of 2026-10-05) |
| Dec. 3, 2010 | AMAT | S | 15,422 | $13.02 | $200,794 | 42,542 Direct | -26.61% | Disposed | 4011.1% (price as of 2026-10-05) |
| March 9, 2010 | AMAT | A | 16,273 | · | · | 57,964 Direct | +39.03% | Acquired | (price as of 2026-10-05) |
| March 10, 2009 | AMAT | A | 21,691 | · | · | 41,691 Direct | +108.45% | Acquired | (price as of 2026-10-05) |
| Sept. 23, 2008 | AMAT | A | 20,000 | · | · | 20,000 Direct | · | Acquired | (price as of 2026-10-05) |
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 6, 2012 | CDXS | Stock Option (Right to Buy) | Common Stock | $3.62 | June 5, 2022 | 20,000 | Acquired |
| June 8, 2011 | CDXS | Stock Option (right to buy) | Common Stock | $10.51 | June 7, 2021 | 20,000 | Acquired |
Exercise/conversion price is blank when not applicable (e.g. RSUs).
Initial ownership (Form 3) 4 holdings
Securities held when first becoming an insider, per SEC Form 3.