Randall J. Weisenburger
At a glance: Randall J. Weisenburger is Director at MP Materials Corp. / DE (MP). Their latest SEC Form 4, filed Nov 12, 2026, reported a purchase of $2.0M. On file: 1 purchase line ($2.0M) and 0 sale lines ($0).
Disclosed holdings: about $8.0M of MP stock: 205,899 shares reported on their latest Form 4 (filed Nov 12, 2026), valued at the Nov 13, 2026 close of $38.76. This counts only MP shares reported to the SEC; it leaves out cash, other investments, options and unvested awards, so it is not total net worth.
Director at MP Materials Corp. / DE (MP)
Purchase track record
Not enough history. Based on 0 purchases with a full 90 days of price history.
Every purchase since 2020
From the SEC's insider data sets: each open-market buy by Randall J. Weisenburger, matched to how the stock did over the next 90 days against the S&P 500.
3 of 7 buys beat the S&P 500 (43%), median -2.0% vs. the index. All insider buys: 46%.
| Stock | Filed | 90 days vs. S&P 500 |
|---|---|---|
| CCL | Oct 23, 2023 | +37.1% |
| MP | Jun 17, 2022 | -9.3% |
| CCL | May 27, 2022 | -26.0% |
| MP | Mar 14, 2022 | -2.0% |
| MP | Dec 17, 2021 | +7.2% |
| CRSR | Apr 9, 2021 | -12.1% |
| CCL | Apr 7, 2020 | +18.0% |
Buys made close together in one stock count once. Price-only returns; history, not a prediction.
Reported trades
| Filed | Stock | Type | Shares | Price | Value | Since |
|---|---|---|---|---|---|---|
| Nov 12SEC | MPMP Materials Corp. / DEFirst buy in 4 yrsPast buys 3/7 beat S&P | Buy | 55,000205,899 held (+36%) | $36.00 | $2.0M | +7.7% |
- Buy
Director Randall J Weisenburger bought $2.0M of MP at $36.00 — first open-market purchase in our records; raises the stake by 36%.
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