Whale Analyzer
MMM Institutional Holders and 13F Ownership
Compare 9 tracked holders of MMM, 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 National Pension Service, Mairs & Power Funds, Edgewood Management LLC, and Jensen Investment Management.
Continue to the live MMM dashboardTop holders
| Investor | Reported value | Shares | Change | Report date |
|---|---|---|---|---|
| National Pension Service 13F holdings | $226.9M | 1.4M | Increased | 2026-06-30 |
| Mairs & Power Funds 13F holdings | $56.6M | 349.4K | Reduced | 2026-06-30 |
| Edgewood Management LLC 13F holdings | $13.0M | 80.6K | Reduced | 2026-06-30 |
| Jensen Investment Management 13F holdings | $4.5M | 27.6K | Reduced | 2026-06-30 |
| Bridgewater Associates 13F holdings | $2.3M | 14.1K | Increased | 2026-06-30 |
| Dodge & Cox 13F holdings | $1.2M | 7.6K | Reduced | 2026-06-30 |
| Horizon Kinetics Asset Management 13F holdings | $437.2K | 2.7K | Reduced | 2026-06-30 |
| Torray Funds 13F holdings | $328.3K | 2.0K | Held | 2026-09-30 |
| ARK Investment Management 13F holdings | $76.1K | 470 | 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.
- National Pension Service SEC filing (0001193125-26-347818) · report date 2026-06-30
- Mairs & Power Funds SEC filing (0001172661-26-003496) · report date 2026-06-30
- Edgewood Management LLC SEC filing (0001062993-26-004244) · report date 2026-06-30
- Jensen Investment Management SEC filing (0001171200-26-000010) · 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
- Horizon Kinetics Asset Management SEC filing (0001398344-26-014047) · report date 2026-06-30
- Torray Funds SEC filing (0001193125-26-439683) · report date 2026-09-30
- ARK Investment Management SEC filing (0001104659-26-096910) · report date 2026-06-30
Tracked-sample concentration
Reported position value for MMM is highly concentrated within this tracked-holder sample. These percentages are not market-wide ownership shares.
- Largest tracked holder: 74.3% of aggregate reported value in this sample
- Top 5 tracked holders: 99.3% 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 9 tracked holders, 6 reduced, 2 increased, 1 held. Net positioning is net selling.
- National Pension Service ($226.9M) (▲ 3.6% qoq shares) · modeled avg cost estimate $131.43
- Mairs & Power Funds ($56.6M) (▼ 0.7% qoq shares)
- Edgewood Management LLC ($13.0M) (▼ 3.6% qoq shares) · modeled avg cost estimate $19.75
- Jensen Investment Management ($4.5M) (→ 0.0% qoq shares)
- Bridgewater Associates ($2.3M) (▲ 35.6% qoq shares) · modeled avg cost estimate $309.57
- Dodge & Cox ($1.2M) (▼ 1.5% qoq shares) · modeled avg cost estimate $153.34
- Horizon Kinetics Asset Management ($437.2K) (▼ 46.0% qoq shares)
- Torray Funds ($328.3K) (→ 0.0% qoq shares) · modeled avg cost estimate $145.23
Modeled cost estimate vs current price
The share-weighted modeled cost estimate across 6 covered tracked holders is $127.32 versus a current price of $185.15, so MMM trades above that estimate (+45.4%). This model does not establish any filer's actual purchase price, unrealized gain, or investment return.
Sector positioning — Industrials
MMM sits within the Industrials sector alongside 88 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 MMM dashboard for price charts and cross-investor scans, or read the SEC 13F guide.
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Learn more in Whale Analyzer Academy
Deepen your read on MMM with these Whale Analyzer Academy guides:
Frequently asked questions
Who owns MMM stock?
Whale Analyzer tracks 9 public-disclosure holders of MMM with a combined reported value of $305.3M. See the holder table above for the largest tracked positions.
Which top funds are buying MMM?
Tracked holders were net selling last quarter — 6 reduced, 2 increased, 1 held. Check the "Change" column: "New" = fresh position, "Increased" = added, "Reduced" = trimmed.
How concentrated is the tracked MMM sample?
The top five tracked holders account for 99.3% of aggregate reported value in this tracked sample. This is not a market-wide ownership percentage.
How does MMM compare with the modeled cost estimate?
The share-weighted modeled cost estimate across 6 covered tracked holders is $127.32 versus a current price of $185.15 (+45.4%). It is not an actual purchase price, unrealized gain, or investment return.
What does 13F ownership mean for MMM?
These are historical reported positions from tracked filers, not real-time ownership or a complete shareholder register. Use the interactive MMM dashboard to explore them, or read our 13F Alpha Signals Guide.