Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional holdings are being reconciled with SEC filings. Holder totals and changes may be incomplete until reconciliation finishes.
Holders:199
Total Value:$83,561,047
Total Shares:13,684,650
Showing 1–100
of 199 holdings by value
· page 1 of 2
Institutional Ownership Trend
27 quarters
Holder Concentration
Across 199 13F filers
· Δ vs Jun 30, 2026
Top Holder
30.7%
+13.6 pts
Top 5
76.2%
+36.3 pts
Top 10
88.8%
+37.7 pts
HHI
1,841
Moderately concentrated+1,313
Who Holds MBB
Last 8 quarters through Sep 30, 2026 (filing window open)
Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory
records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book.
The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter:
1,030 filers,
like-for-like change +2.2%; actively managed books +1.8%; index-like books +11.4%.
Holder type
Share
Filers
Change
New
Exited
Registered adviser
32.8%
705
+6.0%
46
46
Exempt adviser
0.0%
3
-86.1%
2
1
Adviser
4.8%
11
+5.6%
1
0
Bank
39.5%
31
-1.8%
2
3
Insurer
0.0%
3
-64.2%
0
0
Broker-dealer
7.3%
1
-3.1%
0
0
Benefit plan
0.2%
1
0.0%
0
0
Non-US
0.2%
6
+6.0%
0
0
Holding company
4.6%
7
+16.7%
0
0
Unknown
10.7%
262
+4.7%
27
29
Style
Share
Filers
Change
New
Exited
Index-like
7.1%
13
+11.4%
0
2
Systematic-like
0.0%
7
-40.1%
5
2
Concentrated
11.1%
400
+1.2%
40
30
Diversified active
81.7%
610
+1.9%
33
44
Not measured
0.0%
0
—
0
0
Unknown
0.0%
0
-100.0%
0
1
Turnover
Share
Filers
Change
New
Exited
Low turnover
80.7%
655
+3.6%
39
50
Medium turnover
12.0%
227
-7.9%
18
12
High turnover
0.4%
27
-17.1%
11
8
Unknown
6.9%
121
+7.5%
10
9
Not measured
0.0%
0
—
0
0
Holding horizon
Share
Filers
Change
New
Exited
Short horizon
7.1%
121
+5.6%
14
15
Medium horizon
6.3%
275
+1.2%
20
21
Long horizon
85.7%
597
+2.0%
36
41
Unknown
0.9%
37
+4.6%
8
2
Not measured
0.0%
0
—
0
0
13F book size
Share
Filers
Change
New
Exited
Under $1B
5.7%
560
-0.5%
47
56
$1B to $10B
13.9%
325
+1.3%
25
19
$10B to $100B
14.9%
104
+9.1%
4
3
$100B or more
65.4%
41
+1.1%
2
1
Not measured
0.0%
0
—
0
0
Client base
Share
Filers
Change
New
Exited
Individuals and high net worth
23.7%
614
+7.2%
42
38
Pooled investment vehicles
0.5%
8
+7.6%
0
2
Registered funds and BDCs
0.5%
16
-9.7%
0
1
Pension and profit sharing plans
0.9%
10
+1.4%
0
1
Insurance companies
0.1%
5
0.0%
1
0
Charitable organizations
0.0%
3
-18.7%
0
0
Governments and sovereign funds
0.5%
4
+10.5%
0
0
Banks and thrifts
0.1%
1
-3.5%
0
0
Corporations
0.1%
4
+15.6%
0
0
Other investment advisers
0.7%
11
-1.8%
0
1
Other
0.1%
2
+10.3%
0
0
Diversified
1.7%
23
+0.8%
2
3
Unknown
71.1%
329
+0.7%
33
33
Private funds
Share
Filers
Change
New
Exited
Hedge funds
0.8%
31
-11.1%
4
6
Private equity funds
0.8%
29
-0.6%
2
2
Venture capital funds
0.0%
3
+11.2%
0
0
Real estate funds
0.5%
9
+38.9%
0
1
Securitized asset funds
1.3%
4
-0.5%
1
0
Other private funds
0.9%
28
+7.4%
1
2
Mixed private funds
0.2%
6
+4.9%
1
1
Private funds, type not stated
0.1%
6
-7.9%
0
1
No private funds
28.2%
590
+6.1%
39
34
Liquidity funds
0.0%
0
—
0
0
Unknown
67.1%
324
+0.6%
30
32
Location
Share
Filers
Change
New
Exited
United States
91.7%
994
+4.0%
74
77
Outside the US
8.3%
36
-14.1%
4
2
The Sep 30, 2026 filing window is still open, so its
bar shows only the filers that have filed so far.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out.
The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later
quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type
comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster
current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and
book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none
was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 15 holders with no observed 2026-03-31 13F and 15 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
1,030 13F filers, quarter ended Jun 30, 2026
Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts
filers with high turnover or that advise private funds on Form ADV.
Conviction holders
261
25.3% of filers hold it in their top 10
Mar 31, 2026: 0
Holders above 5%
6
median weight 0.357%
Mar 31, 2026: 0
Crowding
—
shares outstanding is an issuer-wide count, not one listing's
Private-fund advisers
—
of shares outstanding
Institutional ownership
—
shares outstanding is an issuer-wide count, not one listing's
Top 10 holders
63.5%
of 13F shares, Herfindahl 0.065
Active holders
+1.8%
like-for-like share change of active filers
5% stakes on record
0
0 13D, 0 13G
How long holders have held itvalue-weighted 15.0 quarters
Under 1 year 13.3%1 to 3 years 25.1%3 years or more 61.6%Since coverage start 0.000%
Managers in the top fifth by current three-year FundScore alpha were net
buyers of $0
(0 buying, 0 selling).
Fund Ownership of MBB by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026
Index funds and index ETFs hold 372,821 shares.
Fund type
Shares
Funds
Index funds
0
0
Index ETFs
372,821
2
Active ETFs
2,046,241
16
Active funds
415,801
6
Unclassified
1,308,776
2
All registered funds
4,143,639
26
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share
positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or
before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have
no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their
advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
Quarterly Activity
vs Jun 30, 2026
New
10
Increased
71
Decreased
96
Sold Out
46
Unchanged
20
New and Sold Out count only filers that reported a 13F for both quarters: a first-time filer's book is not a buy, and a fund that has not filed, or withheld its positions under confidential treatment, has not sold.
