Adrianna Ma
CIK 1576954 · View on SEC EDGAR ↗
First SEC filing: Dec. 18, 2015 · Latest: Dec. 18, 2015
On this page
Insider at
Insider transactions
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 |
|---|---|---|---|---|---|---|---|---|---|
| Dec. 31, 2022 | AMAT | A | 351 | — | — | 38,801 Direct | +0.91% | Acquired | (price as of 2026-08-21) |
| March 10, 2022 | AMAT | A | 1,920 | — | — | 38,450 Direct | +5.26% | Acquired | (price as of 2026-08-21) |
| Dec. 31, 2021 | AMAT | A | 183 | — | — | 36,530 Direct | +0.50% | Acquired | (price as of 2026-08-21) |
| March 11, 2021 | AMAT | A | 1,919 | — | — | 36,347 Direct | +5.57% | Acquired | (price as of 2026-08-21) |
| Dec. 31, 2020 | AMAT | A | 254 | — | — | 34,428 Direct | +0.74% | Acquired | (price as of 2026-08-21) |
| March 12, 2020 | AMAT | A | 4,987 | — | — | 34,174 Direct | +17.09% | Acquired | (price as of 2026-08-21) |
| Dec. 31, 2019 | AMAT | A | 265 | — | — | 29,187 Direct | +0.92% | Acquired | (price as of 2026-08-21) |
| March 7, 2019 | AMAT | A | 5,988 | — | — | 28,922 Direct | +26.11% | Acquired | (price as of 2026-08-21) |
| Dec. 31, 2018 | AMAT | A | 330 | — | — | 22,934 Direct | +1.46% | Acquired | (price as of 2026-08-21) |
| March 8, 2018 | AMAT | A | 3,789 | — | — | 22,604 Direct | +20.14% | Acquired | (price as of 2026-08-21) |
| Dec. 29, 2017 | AMAT | A | 59 | — | — | 18,815 Direct | +0.31% | Acquired | (price as of 2026-08-21) |
| March 9, 2017 | AMAT | A | 6,019 | — | — | 18,756 Direct | +47.26% | Acquired | (price as of 2026-08-21) |
| March 10, 2016 | AMAT | A | 10,219 | — | — | 12,737 Direct | +405.84% | Acquired | (price as of 2026-08-21) |
| Dec. 17, 2015 | AMAT | A | 2,518 | — | — | 2,518 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.
Initial ownership (Form 3) 1 holding
Securities held when first becoming an insider, per SEC Form 3.
| Date | Ticker | Security | Shares | Ownership |
|---|---|---|---|---|
| Dec. 18, 2015 | AMAT | Common Stock | 0 | Direct |