BAMCO INC NY
Q3 2023 Form 13-F
NEW YORK, NEW YORK
CIK 0001017918
· CRD 110789
· SEC-registered investment adviser
Consolidated report · includes
2 managers
since Q2 2013
$34.4B Reported Value Total
BAMCO, INC. reports 37 total accounts under management (AUM). There are 37 discretionary accounts valued at $36,021,839,905, and 0 non-discretionary accounts.
Source: Form ADV filed * Note that certain holdings are exempt from Form 13-F reporting, so the AUM totals may be greater than the Form 13-F total.
Source: Form ADV filed 2026-05-27
Reported value
$34.4B
Quarter over quarter
-4.5%
Holdings
334
Top-10 concentration
43.9%
Filing Structure
Reports holdings for
- BARON CAPITAL MANAGEMENT INC /NY/ (not a 13F filer in our records) · File #028-01678 · since Q2 2013 · declared by one filing
- VOYA INVESTMENTS LLC · File #028-04547 · since Q2 2013
- Lincoln Investment Advisors Corp · File #028-15854 · Q1 2024 – Q1 2025 · declared by one filing
- VOYA INVESTMENTS, LLC (not a 13F filer in our records) · Q2 2014 – Q2 2024 · declared by one filing
Key People
Form ADV owners & control persons
David Robert Baron
SHAREHOLDER
Michael R. Baron
SHAREHOLDER
Ronald Stephen Baron
FOUNDER & CEO
Filing Navigation
Coverage begins with the second quarter of 2013. Earlier quarters are not shown while their accuracy is being verified.
13F Metrics
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Q3 2023 13F record
Q3 2023 13F filing summary
| Period of report | September 30, 2023 |
|---|---|
| Filed | November 14, 2023 |
| Form | 13F-HR |
| Reported value | $34.4B |
| Positions | 334 |
| Change in reported value | -4.7% |
| New positions | 12 |
| Exited positions | 21 |
| Position turnover | 9.3% |
| Top-10 concentration | 43.9% |
13F filings by quarter
| Quarter | Positions | Value |
|---|---|---|
|
Q2 2026 13F
Filed Aug 14, 2026
|
345 | $66.6B |
|
Q1 2026 13F
Filed May 15, 2026
|
326 | $33.1B |
|
Q4 2025 13F
Filed Feb 17, 2026
|
327 | $36.9B |
|
Q3 2025 13F
Filed Nov 14, 2025
|
330 | $37.7B |
|
Q2 2025 13F
Filed Aug 14, 2025
|
306 | $36.9B |
|
Q1 2025 13F
Filed May 15, 2025
|
314 | $34.0B |
|
Q4 2024 13F
Filed Feb 14, 2025
|
316 | $38.7B |
|
Q3 2024 13F
Filed Nov 14, 2024
|
328 | $37.7B |
|
Q2 2024 13F
Filed Aug 14, 2024
|
329 | $34.9B |
|
Q1 2024 13F
Filed May 15, 2024
|
332 | $37.5B |
|
Q4 2023 13F
Filed Feb 14, 2024
|
330 | $37.5B |
|
Q3 2023 13F
Filed Nov 14, 2023
|
334 | $34.4B |
|
Q2 2023 13F
Filed Aug 14, 2023
|
343 | $36.1B |
|
Q1 2023 13F
Filed May 15, 2023
|
360 | $33.3B |
|
Q4 2022 13F
Filed Feb 14, 2023
|
375 | $29.8B |
|
Q3 2022 13F
Filed Nov 14, 2022
|
367 | $31.0B |
|
Q2 2022 13F
Filed Aug 15, 2022
|
369 | $31.1B |
|
Q1 2022 13F
Filed May 13, 2022
|
386 | $40.7B |
|
Q4 2021 13F
Filed Feb 14, 2022
|
403 | $47.1B |
|
Q3 2021 13F
Filed Nov 12, 2021
|
396 | $44.1B |
33 earlier quarters on file — choose one from the quarter menu above.
Top 20 holdings · Q3 2023
| # | Holding | Reported value | % of portfolio |
|---|---|---|---|
| 1 | TSLA TESLA INC | $4.4B | 12.85% |
| 2 | ACGL ARCH CAP GROUP LTD | $1.7B | 4.92% |
| 3 | IT GARTNER INC | $1.6B | 4.65% |
| 4 | CSGP COSTAR GROUP INC | $1.5B | 4.29% |
| 5 | FDS FACTSET RESH SYS INC | $1.2B | 3.5% |
| 6 | MSCI MSCI INC | $1.2B | 3.37% |
| 7 | MTN VAIL RESORTS INC | $1.0B | 3.04% |
| 8 | IDXX IDEXX LABS INC | $1.0B | 2.97% |
| 9 | KNSL KINSALE CAP GROUP INC | $822.1M | 2.39% |
| 10 | IRDM IRIDIUM COMMUNICATIONS INC | $663.4M | 1.93% |
| 11 | ANSS ANSYS INC | $595.9M | 1.73% |
| 12 | CHH CHOICE HOTELS INTL INC | $567.7M | 1.65% |
| 13 | H HYATT HOTELS CORP | $565.1M | 1.64% |
| 14 | GWRE GUIDEWIRE SOFTWARE INC | $561.5M | 1.63% |
| 15 | SCHW SCHWAB CHARLES CORP | $444.8M | 1.29% |
| 16 | RRR RED ROCK RESORTS INC | $404.1M | 1.17% |
| 17 | WST WEST PHARMACEUTICAL SVSC INC | $394.0M | 1.14% |
| 18 | GLPI GAMING & LEISURE PPTYS INC | $383.5M | 1.11% |
| 19 | PRI PRIMERICA INC | $373.6M | 1.09% |
| 20 | MTD METTLER TOLEDO INTERNATIONAL | $368.9M | 1.07% |
Values as reported on the Q3 2023 Form 13F. Every position is in the holdings table below.