Mark Wiedman is Director at BlackRock, Inc. (BLK). They have made 18 open-market trades across 2 companies since 2020, most recently 2026-04-17.
CIK 0001469164
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
1 open-market purchase totalling $4K since 2025, against 17 sales. Too few scored purchases to measure a record yet.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| PNC | BUY | 2025-05-20 | 2025-05-22 | $178.40 | $4K | +3.0% | +6.5% | +14.9% |
| BLK | SELL | 2024-12-06 | 2024-12-06 | $1045.90 | $75.7M | -2.8% | -3.5% | -8.6% |
| BLK | SELL · 10b5-1 | 2024-08-30 | 2024-08-30 | $900.00 | $10.8M | -1.6% | +5.6% | +13.8% |
| BLK | SELL · 10b5-1 | 2024-08-15 | 2024-08-16 | $875.03 | $10.5M | +1.7% | +2.5% | +19.9% |
| BLK | SELL · 10b5-1 | 2024-08-12 | 2024-08-14 | $852.01 | $15.6M | +2.2% | +2.5% | +19.9% |
| BLK | SELL | 2024-07-16 | 2024-07-18 | $834.40 | $44.2M | +4.7% | +4.4% | +21.8% |
| BLK | SELL | 2024-05-10 | 2024-05-14 | $795.00 | $7.2M | -3.4% | -4.9% | +3.6% |
| BLK | SELL | 2024-02-23 | 2024-02-23 | $821.69 | $394K | +2.4% | +0.6% | -3.3% |
| BLK | SELL | 2024-02-02 | 2024-02-02 | $788.73 | $2.0M | +0.4% | +6.7% | -3.2% |
| BLK | SELL | 2023-07-18 | 2023-07-20 | $733.82 | $3.1M | -2.8% | -10.8% | -18.1% |
| BLK | SELL | 2023-02-02 | 2023-02-03 | $766.07 | $3.4M | -3.1% | -7.8% | -15.4% |
| BLK | SELL | 2023-01-18 | 2023-01-19 | $749.89 | $1.6M | +3.3% | -5.3% | -5.4% |
| BLK | SELL | 2022-11-11 | 2022-11-15 | $780.65 | $2.2M | -1.6% | -4.8% | +0.5% |
| BLK | SELL | 2021-07-15 | 2021-07-16 | $884.50 | $310K | +0.4% | +7.8% | +4.1% |
| BLK | SELL | 2021-04-16 | 2021-04-16 | $812.53 | $2.8M | +0.6% | +4.7% | +8.5% |
| BLK | SELL | 2021-02-04 | 2021-02-04 | $730.30 | $1.1M | -1.7% | -4.8% | +15.9% |
| BLK | SELL | 2020-11-25 | 2020-11-27 | $698.71 | $405K | -1.2% | -0.0% | -2.2% |
| BLK | SELL | 2020-10-26 | 2020-10-28 | $626.46 | $4.8M | +11.0% | +19.1% | +20.3% |
| BLK | SELL | 2020-08-06 | 2020-08-07 | $583.20 | $420K | +0.6% | -5.7% | +14.0% |
| BLK | SELL | 2020-04-27 | 2020-04-29 | $500.65 | $1.8M | -1.6% | +5.5% | +13.9% |
| BLK | SELL | 2020-02-06 | 2020-02-07 | $542.25 | $3.0M | +2.4% | -24.3% | -10.1% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.