Whale Analyzer
BLK Institutional Holders and 13F Ownership
Compare 10 tracked holders of BLK, their reported positions and disclosed changes. Coverage is limited to the investors tracked by Whale Analyzer; these records do not establish all shareholders or current trades. Available original SEC filings for tracked 13F holders are linked below. Top tracked holders include Capital Research Global Investors, ValueAct Capital Management, National Pension Service, and Markel Group.
Continue to the live BLK dashboardTop holders
| Investor | Reported value | Shares | Change | Report date |
|---|---|---|---|---|
| Capital Research Global Investors 13F holdings | $4.29B | 4.5M | Reduced | 2026-06-30 |
| ValueAct Capital Management 13F holdings | $559.3M | 581.7K | Increased | 2026-06-30 |
| National Pension Service 13F holdings | $315.2M | 327.8K | Increased | 2026-06-30 |
| Markel Group 13F holdings | $233.0M | 220.2K | Held | 2026-09-30 |
| Oakmark Funds 13F holdings | $42.9M | 44.6K | Reduced | 2026-06-30 |
| Cantillon Capital Management 13F holdings | $20.1M | 20.9K | Reduced | 2026-06-30 |
| Bridgewater Associates 13F holdings | $4.5M | 4.7K | New | 2026-06-30 |
| Dodge & Cox 13F holdings | $683.7K | 711 | Held | 2026-06-30 |
| Pzena Investment Management 13F holdings | $338.7K | 320 | New | 2026-09-30 |
| Hillman Capital Management 13F holdings | $329.8K | 343 | Reduced | 2026-06-30 |
Original SEC filing sources
These recorded filings support the tracked 13F rows included in the aggregate reported values on this page. See each holder profile for source coverage and context for other disclosure types.
- Capital Research Global Investors SEC filing (0001422848-26-000094) · report date 2026-06-30
- ValueAct Capital Management SEC filing (0001418814-26-000003) · report date 2026-06-30
- National Pension Service SEC filing (0001193125-26-347818) · report date 2026-06-30
- Markel Group SEC filing (0001096343-26-000085) · report date 2026-09-30
- Oakmark Funds SEC filing (0000813917-26-000042) · report date 2026-06-30
- Cantillon Capital Management SEC filing (0001279936-26-000005) · report date 2026-06-30
- Bridgewater Associates SEC filing (0001350694-26-000003) · report date 2026-06-30
- Dodge & Cox SEC filing (0001193125-26-349535) · report date 2026-06-30
- Pzena Investment Management SEC filing (0001027796-26-000065) · report date 2026-09-30
- Hillman Capital Management SEC filing (0001398344-26-014467) · report date 2026-06-30
Tracked-sample concentration
Reported position value for BLK is highly concentrated within this tracked-holder sample. These percentages are not market-wide ownership shares.
- Largest tracked holder: 78.5% of aggregate reported value in this sample
- Top 5 tracked holders: 99.5% of aggregate reported value in this sample
- Top 10 tracked holders: 100.0% of aggregate reported value in this sample
Whale activity this quarter
Across 10 tracked holders, 4 reduced, 4 increased, 2 held. Net positioning is net selling.
- Capital Research Global Investors ($4.29B) (▼ 3.3% qoq shares) · modeled avg cost estimate $571.64
- ValueAct Capital Management ($559.3M) (▲ 6.5% qoq shares) · modeled avg cost estimate $1023.02
- National Pension Service ($315.2M) (▲ 2.1% qoq shares) · modeled avg cost estimate $595.35
- Markel Group ($233.0M) (→ 0.0% qoq shares) · modeled avg cost estimate $366.49
- Oakmark Funds ($42.9M) (▼ 18.3% qoq shares)
- Cantillon Capital Management ($20.1M) (▼ 95.4% qoq shares)
- Dodge & Cox ($683.7K) (→ 0.0% qoq shares) · modeled avg cost estimate $401.62
- Pzena Investment Management ($338.7K) · modeled avg cost estimate $980.38
Modeled cost estimate vs current price
The share-weighted modeled cost estimate across 6 covered tracked holders is $611.93 versus a current price of $1178.87, so BLK trades above that estimate (+92.6%). This model does not establish any filer's actual purchase price, unrealized gain, or investment return.
Sector positioning — Financials
BLK sits within the Financials sector alongside 139 other tracked names. Compare reported positions across tracked peers:
How to use this page
Values are reported public positions from tracked 13F filers and disclosures — not real-time or market-wide ownership totals. Open the live BLK dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
Related stock holder pages
- AVGO whale holders — BROADCOM INC
- NVDA whale holders — NVIDIA CORPORATION
- MSFT whale holders — MICROSOFT CORP
- AMZN whale holders — AMAZON COM INC
- LLY whale holders — ELI LILLY & CO
- GOOGL whale holders — ALPHABET INC
- META whale holders — META PLATFORMS INC
- AAPL whale holders — APPLE INC
Learn more in Whale Analyzer Academy
Deepen your read on BLK with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns BLK stock?
Whale Analyzer tracks 10 public-disclosure holders of BLK with a combined reported value of $5.46B. See the holder table above for the largest tracked positions.
Which top funds are buying BLK?
Tracked holders were net selling last quarter — 4 reduced, 4 increased, 2 held. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is the tracked BLK sample?
The top five tracked holders account for 99.5% of aggregate reported value in this tracked sample. This is not a market-wide ownership percentage.
How does BLK compare with the modeled cost estimate?
The share-weighted modeled cost estimate across 6 covered tracked holders is $611.93 versus a current price of $1178.87 (+92.6%). It is not an actual purchase price, unrealized gain, or investment return.
What does 13F ownership mean for BLK?
These are historical reported positions from tracked filers, not real-time ownership or a complete shareholder register. Use the interactive BLK dashboard to explore them, or read our 13F Alpha Signals Guide.