Filed: 5/15/2026ACC: 0001017918-26-000043
📋 What this filing means
BAMCO INC /NY/ filed this quarterly 13F‑HR report disclosing 326 equity positions with a total reported market value of $33.13B. This filing provides a transparent view of the manager's long equity holdings as of the quarter end.
326
Positions
$33.13B
Total AUM (reported)
453.07M
Total Shares
Allocation by class
COM$21.42B64.7%
CL A$3.28B9.9%
COM CL A$2.22B6.7%
ORD$1.69B5.1%
SHS$727.78M2.2%
SPONSORED ADS$593.01M1.8%
CL A SUB VTG SHS$559.68M1.7%
Portfolio Concentration
Top 3$7.50B22.6%
4–10$6.25B18.9%
11–25$7.38B22.3%
Rest$12.00B36.2%
Top 3 weight
22.6%
Top 10 weight
41.5%
Voting Authority Distribution
Total shares with voting rights: 451.80M
Sole
Full voting authority
31.43M
shares
% of voting shares7.0%
Shared
Joint voting authority
417.10M
shares
% of voting shares92.3%
None
No voting authority
3.28M
shares
% of voting shares0.7%
Investment Discretion (by position count)
Sole0
Shared0
Other326
Dominant voting typeShared · 92.3% of voting shares
Institutional Holdings326
Rows:
TESLA INC
DFNDShares11.93M
TypeSH
Market value$4.44B
13.39%
Sole
3.38M
Shared
8.55M
None
0.00
ARCH CAP GROUP LTD
DFNDShares16.71M
TypeSH
Market value$1.60B
4.84%
Sole
0.00
Shared
16.58M
None
128.45K
MSCI INC
DFNDShares2.70M
TypeSH
Market value$1.45B
4.39%
Sole
0.00
Shared
2.66M
None
38.37K
GUIDEWIRE SOFTWARE INC
DFNDShares6.60M
TypeSH
Market value$986.72M
2.98%
Sole
0.00
Shared
6.51M
None
89.39K
GARTNER INC
DFNDShares5.92M
TypeSH
Market value$937.00M
2.83%
Sole
0.00
Shared
5.86M
None
62.51K
IDEXX LABS INC
DFNDShares1.63M
TypeSH
Market value$917.77M
2.77%
Sole
0.00
Shared
1.61M
None
22.03K
HYATT HOTELS CORP
DFNDShares6.34M
TypeSH
Market value$911.87M
2.75%
Sole
0.00
Shared
6.34M
None
0.00
FIGS INC
DFNDShares59.96M
TypeSH
Market value$885.60M
2.67%
Sole
27.83M
Shared
30.90M
None
1.23M
FACTSET RESH SYS INC
DFNDShares3.76M
TypeSH
Market value$815.14M
2.46%
Sole
0.00
Shared
3.73M
None
28.31K
CHOICE HOTELS INTL INC
DFNDShares7.69M
TypeSH
Market value$795.97M
2.40%
Sole
20K
Shared
7.58M
None
86.57K
RED ROCK RESORTS INC
DFNDShares13.41M
TypeSH
Market value$715.71M
2.16%
Sole
0.00
Shared
13.29M
None
118.03K
SCHWAB CHARLES CORP
DFNDShares7.46M
TypeSH
Market value$701.50M
2.12%
Sole
187.25K
Shared
7.28M
None
0.00
KINSALE CAP GROUP INC
DFNDShares2.03M
TypeSH
Market value$692.81M
2.09%
Sole
0.00
Shared
2M
None
32.38K
COSTAR GROUP INC
DFNDShares16.31M
TypeSH
Market value$658.11M
1.99%
Sole
0.00
Shared
16.06M
None
257.01K
VAIL RESORTS INC
DFNDShares5.04M
TypeSH
Market value$647.19M
1.95%
Sole
0.00
Shared
4.97M
None
71.04K
SPOTIFY TECHNOLOGY S A
DFNDShares1.32M
TypeSH
Market value$639.85M
1.93%
Sole
0.00
Shared
1.32M
None
0.00
SHOPIFY INC
DFNDShares4.72M
TypeSH
Market value$559.68M
1.69%
Sole
0.00
Shared
4.68M
None
0.00
NVIDIA CORPORATION
DFNDShares2.92M
TypeSH
Market value$509.21M
1.54%
Sole
0.00
Shared
2.87M
None
0.00
VERISK ANALYTICS INC
DFNDShares2.51M
TypeSH
Market value$476.65M
1.44%
Sole
0.00
Shared
2.51M
None
0.00
BIRKENSTOCK HOLDING PLC
DFNDShares9.37M
TypeSH
Market value$335.59M
1.01%
Sole
0.00
Shared
9.37M
None
0.00
ON HLDG AG
DFNDShares9.71M
TypeSH
Market value$330.49M
1.00%
Sole
0.00
Shared
9.71M
None
0.00
VERTIV HOLDINGS CO
DFNDShares1.18M
TypeSH
Market value$295.97M
0.89%
Sole
0.00
Shared
1.18M
None
0.00
SITEONE LANDSCAPE SUPPLY INC
DFNDShares2.06M
TypeSH
Market value$274.08M
0.83%
Sole
0.00
Shared
2.03M
None
28.68K
INTERACTIVE BROKERS GROUP IN
DFNDShares4.05M
TypeSH
Market value$271.46M
0.82%
Sole
0.00
Shared
4.05M
None
0.00
AMAZON COM INC
DFNDShares1.29M
TypeSH
Market value$269.64M
0.81%
Sole
0.00
Shared
1.27M
None
0.00
| Issuer | Class | Shares | Type | Value / Portfolio % | Voting — Sole | Shared | None |
|---|---|---|---|---|---|---|---|
TESLA INCDFND | COM | 11.93M | SH | $4.44B 13.39% | 3.38M | 8.55M | 0.00 |
ARCH CAP GROUP LTDDFND | ORD | 16.71M | SH | $1.60B 4.84% | 0.00 | 16.58M | 128.45K |
MSCI INCDFND | COM | 2.70M | SH | $1.45B 4.39% | 0.00 | 2.66M | 38.37K |
GUIDEWIRE SOFTWARE INCDFND | COM | 6.60M | SH | $986.72M 2.98% | 0.00 | 6.51M | 89.39K |
GARTNER INCDFND | COM | 5.92M | SH | $937.00M 2.83% | 0.00 | 5.86M | 62.51K |
IDEXX LABS INCDFND | COM | 1.63M | SH | $917.77M 2.77% | 0.00 | 1.61M | 22.03K |
HYATT HOTELS CORPDFND | COM CL A | 6.34M | SH | $911.87M 2.75% | 0.00 | 6.34M | 0.00 |
FIGS INCDFND | CL A | 59.96M | SH | $885.60M 2.67% | 27.83M | 30.90M | 1.23M |
FACTSET RESH SYS INCDFND | COM | 3.76M | SH | $815.14M 2.46% | 0.00 | 3.73M | 28.31K |
CHOICE HOTELS INTL INCDFND | COM | 7.69M | SH | $795.97M 2.40% | 20K | 7.58M | 86.57K |
RED ROCK RESORTS INCDFND | CL A | 13.41M | SH | $715.71M 2.16% | 0.00 | 13.29M | 118.03K |
SCHWAB CHARLES CORPDFND | COM | 7.46M | SH | $701.50M 2.12% | 187.25K | 7.28M | 0.00 |
KINSALE CAP GROUP INCDFND | COM | 2.03M | SH | $692.81M 2.09% | 0.00 | 2M | 32.38K |
COSTAR GROUP INCDFND | COM | 16.31M | SH | $658.11M 1.99% | 0.00 | 16.06M | 257.01K |
VAIL RESORTS INCDFND | COM | 5.04M | SH | $647.19M 1.95% | 0.00 | 4.97M | 71.04K |
SPOTIFY TECHNOLOGY S ADFND | SHS | 1.32M | SH | $639.85M 1.93% | 0.00 | 1.32M | 0.00 |
SHOPIFY INCDFND | CL A SUB VTG SHS | 4.72M | SH | $559.68M 1.69% | 0.00 | 4.68M | 0.00 |
NVIDIA CORPORATIONDFND | COM | 2.92M | SH | $509.21M 1.54% | 0.00 | 2.87M | 0.00 |
VERISK ANALYTICS INCDFND | COM | 2.51M | SH | $476.65M 1.44% | 0.00 | 2.51M | 0.00 |
BIRKENSTOCK HOLDING PLCDFND | COM SHS | 9.37M | SH | $335.59M 1.01% | 0.00 | 9.37M | 0.00 |
ON HLDG AGDFND | NAMEN AKT A | 9.71M | SH | $330.49M 1.00% | 0.00 | 9.71M | 0.00 |
VERTIV HOLDINGS CODFND | COM CL A | 1.18M | SH | $295.97M 0.89% | 0.00 | 1.18M | 0.00 |
SITEONE LANDSCAPE SUPPLY INCDFND | COM | 2.06M | SH | $274.08M 0.83% | 0.00 | 2.03M | 28.68K |
INTERACTIVE BROKERS GROUP INDFND | COM CL A | 4.05M | SH | $271.46M 0.82% | 0.00 | 4.05M | 0.00 |
AMAZON COM INCDFND | COM | 1.29M | SH | $269.64M 0.81% | 0.00 | 1.27M | 0.00 |
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