What is SEC Form 13F? Ultimate Guide to Institutional Equity Filings
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CIK: 0001017918
Total reported value
$66.6B
$66.6B
306 檔
15.5%
According to the latest 13F quarterly dataset, Bamco Inc /ny/ managed an equity portfolio of $66.6B at the end of Q2 2025, spanning 306 distinct U.S. exchange-listed positions.
Bamco Inc /ny/ executed strategic sector rebalancing during Q2 2025, establishing 9 new positions while fully exiting 18 holdings and trimming 74 positions.
Showing top 200 holdings (of 306 total)
| # | Ticker | Issuer | Asset Subclass | Weight | Weight Change | Shares Change | 4Q Trend |
|---|---|---|---|---|---|---|---|
| 1 | TSLA | Tesla Inc | Stock-Consumer Disc | 11.21% | -5.49% | -8.40% | |
| 2 | ACGL | Arch Capital Group Ltd. | Stock-Financials | 4.87% | -2.53% | -1.20% | |
| 3 | CSGP | Costar Group Inc | Stock-Real Estate | 4.29% | -1.07% | +3.40% | |
| 4 | IT | Gartner Inc | Stock-Tech | 4.00% | -1.35% | -3.15% | |
| 5 | GWRE | Guidewire Software Inc | Stock-Tech | 3.57% | -1.32% | -1.38% | |
| 6 | MSCI | Msci Inc | Stock-Financials | 3.39% | -1.69% | +4.76% | |
| 7 | IDXX | Idexx Laboratories Inc | Stock-Healthcare | 2.96% | -1.21% | -1.32% | |
| 8 | FDS | Factset Research Systems Inc | Stock-Financials | 2.71% | -1.01% | -0.72% | |
| 9 | MTN | Vail Resorts Inc | Stock-Consumer Disc | 2.33% | -0.61% | +3.62% | |
| 10 | KNSL | Kinsale Capital Group Inc | Stock-Financials | 2.31% | -0.77% | +1.43% | |
| 11 | H | Hyatt Hotels CORP - Cl A | Stock-Consumer Disc | 2.25% | -0.63% | +2.87% | |
| 12 | SPOT | Spotify Technology S.A. | Stock-Comm Services | 1.95% | -0.25% | +5.56% | |
| 13 | SCHW | Schwab (charles) CORP | Stock-Financials | 1.74% | -0.51% | -2.39% | |
| 14 | RRR | Red Rock Resorts Inc-class A | Stock-Other | 1.73% | -0.56% | +5.75% | |
| 15 | CHH | Choice Hotels Intl Inc | Stock-Consumer Disc | 1.72% | -0.86% | +6.80% | |
| 16 | NVDA | Nvidia CORP | Stock-Tech | 1.24% | -0.65% | +0.60% | |
| 17 | PRI | Primerica Inc | Stock-Financials | 1.18% | -0.36% | -0.94% | |
| 18 | MORN | Morningstar Inc | Stock-Financials | 1.10% | +0.43% | -0.32% | |
| 19 | VRSK | Verisk Analytics Inc | Stock-Industrials | 1.03% | -0.17% | +0.15% | |
| 20 | GLPI | Gaming And Leisure Propertie | Stock-Real Estate | 0.93% | -0.13% | -3.01% | |
| 21 | FIGS | Figs Inc-class A | Stock-Other | 0.92% | -1.75% | +2.22% | |
| 22 | VRT | Vertiv Holdings Co-a | Stock-Industrials | 0.89% | -0.40% | -13.35% | |
| 23 | SHOP | Shopify Inc - Class A | Stock-Tech | 0.83% | +0.22% | +5.75% | |
| 24 | MTD | Mettler-toledo International | Stock-Healthcare | 0.76% | -0.24% | -14.95% | |
| 25 | IRDM | Iridium Communications Inc | Stock-Comm Services | 0.69% | — | -9.64% | |
| 26 | AMZN | Amazon.com Inc | Stock-Consumer Disc | 0.64% | -0.11% | -0.20% | |
| 27 | SITE | Siteone Landscape Supply Inc | Stock-Industrials | 0.64% | -0.48% | +14.24% | |
| 28 | IBKR | Interactive Brokers Gro-cl A | Stock-Financials | 0.63% | -0.19% | +359.36% | |
| 29 | BIRK | Birkenstock Holding plc | Stock-Other | 0.60% | -0.06% | +11.26% | |
| 30 | ✓ | On Holding AG | Stock-Other | 0.58% | -0.10% | +3.31% | |
| 31 | HLI | Houlihan Lokey Inc | Stock-Financials | 0.56% | -0.28% | +0.17% | |
| 32 | META | Meta Platforms Inc-class A | Stock-Comm Services | 0.55% | -0.24% | -2.87% | |
| 33 | CBRE | Cbre Group Inc - A | Stock-Real Estate | 0.53% | -0.24% | +2.85% | |
| 34 | KTOS | Kratos Defense & Security | Stock-Industrials | 0.51% | -0.07% | -11.40% | |
| 35 | WELL | Welltower Inc | Stock-Real Estate | 0.51% | -0.38% | -7.09% | |
| 36 | APH | Amphenol Corp-cl A | Stock-Tech | 0.51% | -0.21% | +1.94% | |
| 37 | MSFT | Microsoft CORP | Stock-Tech | 0.45% | -0.04% | -8.04% | |
| 38 | MELI | Mercadolibre Inc | Stock-Consumer Disc | 0.44% | -0.10% | -5.89% | |
| 39 | DKNG | Draftkings Inc-cl A | Stock-Consumer Disc | 0.43% | -0.14% | +33.94% | |
| 40 | BN | Brookfield CORP | Stock-Financials | 0.42% | -0.21% | +24.45% | |
| 41 | BFAM | Bright Horizons Family Solut | Stock-Consumer Disc | 0.42% | -0.16% | -0.72% | |
| 42 | EQIX | Equinix Inc | Stock-Real Estate | 0.41% | -0.41% | +38.14% | |
| 43 | TTD | Trade Desk Inc/the -class A | Stock-Comm Services | 0.41% | — | +11.64% | |
| 44 | FICO | Fair Isaac CORP | Stock-Tech | 0.40% | -0.14% | -6.18% | |
| 45 | AVGO | Broadcom Inc | Stock-Tech | 0.40% | -0.20% | +3.49% | |
| 46 | GTLS | Chart Industries Inc | Stock-Industrials | 0.40% | — | -6.93% | |
| 47 | CNS | Cohen & Steers Inc | Stock-Other | 0.39% | -0.01% | -0.80% | |
| 48 | TECH | Bio-techne CORP | Stock-Healthcare | 0.39% | -0.09% | -14.67% | |
| 49 | ROP | Roper Technologies Inc | Stock-Tech | 0.39% | -0.11% | +0.07% | |
| 50 | CPNG | Coupang Inc | Stock-Consumer Disc | 0.38% | -0.09% | -15.02% |
| # | Ticker | Issuer | Weight Change | Shares Change | Action |
|---|---|---|---|---|---|
| 1 | SPOT | Spotify Technology S.A. | +0.5% | +5.56% | Add |
| 2 | GWRE | Guidewire Software Inc | +0.5% | -1.38% | Trim |
| 3 | IDXX | Idexx Laboratories Inc | +0.4% | -1.32% | Trim |
| 4 | TSLA | Tesla Inc | +0.4% | -8.40% | Trim |
| 5 | NVDA | Nvidia CORP | +0.3% | +0.60% | Add |
| 6 | VRT | Vertiv Holdings Co-a | +0.3% | -13.35% | Trim |
| 7 | RRR | Red Rock Resorts Inc-class A | +0.3% | +5.75% | Add |
| 8 | IBKR | Interactive Brokers Gro-cl A | +0.2% | +359.36% | Add |
| 9 | TOL | Toll Brothers Inc | +0.2% | +116.89% | Add |
| 10 | H | Hyatt Hotels CORP - Cl A | +0.2% | +2.87% | Add |
| 11 | IOT | Samsara Inc-cl A | +0.2% | +148.58% | Add |
| 12 | DKNG | Draftkings Inc-cl A | +0.2% | +33.94% | Add |
| 13 | APH | Amphenol Corp-cl A | +0.2% | +1.94% | Add |
| 14 | AVGO | Broadcom Inc | +0.2% | +3.49% | Add |
| 15 | FIGS | Figs Inc-class A | +0.1% | +2.22% | Add |
| 16 | WYNN | Wynn Resorts LTD | +0.1% | +56.46% | Add |
| 17 | ABNB | Airbnb Inc-class A | +0.1% | +272.01% | Add |
| 18 | LLY | Eli Lilly & Co | +0.1% | +200.33% | Add |
| 19 | HNGE | Hinge Health Inc-a | +0.1% | NEW | New buy |
| 20 | SHOP | Shopify Inc - Class A | +0.1% | +5.75% | Add |
| 21 | PWR | Quanta Services Inc | +0.1% | +8.78% | Add |
| 22 | INDI | Indie Semiconductor Inc-a | +0.1% | +23.50% | Add |
| 23 | KTOS | Kratos Defense & Security | +0.1% | -11.40% | Trim |
| 24 | BN | Brookfield CORP | +0.1% | +24.45% | Add |
| 25 | TTD | Trade Desk Inc/the -class A | +0.1% | +11.64% | Add |
| 26 | BXP | Bxp Inc | +0.1% | NEW | New buy |
| 27 | KRMN | Karman Holdings Inc | +0.1% | +0.60% | Add |
| 28 | LOAR | Loar Holdings Inc | +0.1% | +100.87% | Add |
| 29 | SCHW | Schwab (charles) CORP | +0.1% | -2.39% | Trim |
| 30 | EQIX | Equinix Inc | +0.1% | +38.14% | Add |
| 31 | EXK | Exact Sciences CORP | +0.1% | +26.39% | Add |
| 32 | DLR | Digital Realty Trust Inc | +0.1% | +63.61% | Add |
| 33 | META | Meta Platforms Inc-class A | +0.1% | -2.87% | Trim |
| 34 | LLYVK* | Liberty Media Corp-liberty-c | +0.1% | +19.17% | Add |
| 35 | MELI | Mercadolibre Inc | +0.1% | -5.89% | Trim |
| 36 | ODD | Oddity Tech Ltd. | +0.1% | -13.33% | Trim |
| 37 | LPLA | Lpl Financial Holdings Inc | +0.1% | +34.63% | Add |
| 38 | SPG | Simon Property Group Inc | +0.1% | +307.44% | Add |
| 39 | BXMT | Blackstone Mortgage Tru-cl A | +0.1% | +1498.08% | Add |
| 40 | HEI-A | Heico Corp-class A | +0.1% | +13.06% | Add |
| 41 | NOVT | Novanta Inc | +0.1% | +202.27% | Add |
| 42 | DT | Dynatrace Inc | +0.1% | +65.64% | Add |
| 43 | ✓ | On Holding AG | +0.1% | +3.31% | Add |
| 44 | BIRK | Birkenstock Holding plc | +0.1% | +11.26% | Add |
| 45 | CRH | CRH plc | +0.1% | +45.40% | Add |
| 46 | DDOG | Datadog Inc - Class A | +0.1% | +6.82% | Add |
| 47 | ZS | Zscaler Inc | +0.1% | +5.00% | Add |
| 48 | PONY | Pony Ai Inc | +0.1% | NEW | New buy |
| 49 | MSFT | Microsoft CORP | +0.1% | -8.04% | Trim |
| 50 | TSM | Taiwan Semiconductor-sp Adr | +0.1% | -9.94% | Trim |
According to official SEC Form 13F filings, Bamco Inc /ny/ reported a total U.S. public equity portfolio value of $66.6B across 306 disclosed positions in Q2 2025.
During Q2 2025, Bamco Inc /ny/'s top holdings by market value included TSLA (11.2%)、ACGL (4.9%)、CSGP (4.3%). The largest single position, TSLA, represented 11.2% of total portfolio value.
Expert Analysis & Guides for Tracking Wall Street Smart Money Movements
Learn how SEC Form 13F filings work, the $100M threshold, 45-day reporting lag, and how to track top hedge fund holdings.
In terms of portfolio concentration, the top 5 core holdings (including TSLA, ACGL, CSGP) accounted for 15.5% of total reported equity market value during Q2 2025.
Top New Position Initiated
HNGE
市值: $48.9M
Top Position Liquidated / Trimmed
UTZ
前期市值: $45.8M
In Q2 2025, Bamco Inc /ny/ made 193 total portfolio adjustments, initiating 9 new buys, adding to 92 positions, trimming 74 holdings, and fully liquidating 18 stocks.
All holding records on this page are fetched directly from the U.S. Securities and Exchange Commission (SEC) EDGAR system (Form 13F-HR). AlphaSMO parses CUSIP identifiers and formats data into Schema.org-compliant datasets.
Understand SEC Form 4 insider disclosures for corporate officers, directors, and 10% owners to track executive transactions.
Understand Rule 144 restricted stock sale notices to spot planned insider liquidations before market sell pressure arrives.
Explore the 5% beneficial ownership threshold, 13D vs 13G filing differences, and recent SEC accelerated deadline rules.
Best practices for analyzing 13F quarterly changes without getting misled by stock splits, options, or market valuation drift.
Learn how AlphaSMO's flagship signal detects high-conviction stocks where 13F hedge funds and corporate insiders buy at the same time.