StockSEC filings
BlackRock, Inc. (BLK): Insider Trades and Fund Holdings
What insiders and tracked funds have reported about BlackRock, Inc. in SEC filings.
0Insider buys, 12 months
$0Bought by insiders, 12 months
$0Sold by insiders, 12 months
4Tracked funds holding
ADVERTISEMENT
320 × 100 ad slot
Tracked funds that report BLK
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| ValueAct Capital | 581,700 | $559.3M | ▲ +6.5% |
| Markel Group | 220,200 | $211.7M | No change |
| Renaissance Technologies | 118,722 | $114.2M | ▲ New |
| Bridgewater Associates | 4,683 | $4.50M | ▲ New |
Source: SEC Form 13F-HR filings, retrieved Oct 28, 2026. How we read filings
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →