American Capital Management Inc
Institutional manager — quarterly 13F holdings, Q ending 2026-03-31
Reported value
$1.86B
Q ending 2026-03-31
Prior quarter
$2.27B
Q ending 2025-12-31
Change
-17.8% QoQ · -24.2% YoY
Positions
75
reported holdings
Largest positions
All 75 reported positions, Q ending 2026-03-31. A manager can hold shares, calls and puts on the same security at once — such positions are listed as separate rows. Type: Shares = common stock, Put/Call = option positions (valued at the underlying), Principal = debt. Tickers link to stock pages where covered.
| Holding | Ticker | Type | Value ▼ | Shares |
|---|---|---|---|---|
| Medpace Holdings Inc | MEDP | Shares | $104.7M | 218K |
| Palo Alto Networks Inc | PANW | Shares | $100.1M | 624K |
| Rbc Bearings Inc | RBC | Shares | $95.3M | 175K |
| Idexx Laboratories Inc | IDXX | Shares | $93.3M | 166K |
| Aerovironment Inc | AVAV | Shares | $79.9M | 436K |
| Kratos Defense & Security Solution | KTOS | Shares | $75.6M | 1.1M |
| Fortinet Inc | FTNT | Shares | $67.7M | 829K |
| Sei Investments Co | SEIC | Shares | $60.3M | 769K |
| Resmed Inc | RMD | Shares | $59.6M | 265K |
| Globus Medical Inc | GMED | Shares | $57.1M | 663K |
| Bio-Techne Corp | TECH | Shares | $53.4M | 1.0M |
| Cognyte Software Ltd | Shares | $52.6M | 6.5M | |
| Varonis Systems Inc | VRNS | Shares | $50.0M | 2.3M |
| Live Ramp Holdings Inc | RAMP | Shares | $49.4M | 1.9M |
| Guidewire Software Inc | GWRE | Shares | $48.5M | 324K |
| Manhattan Associates Inc | MANH | Shares | $47.6M | 358K |
| Novanta Inc | NOVT | Shares | $44.2M | 374K |
| Repligen Corp | RGEN | Shares | $42.1M | 358K |
| Commvault Systems Inc | CVLT | Shares | $42.1M | 541K |
| Dynatrace Inc | DT | Shares | $39.0M | 1.1M |
| Jack Henry & Associates Inc | JKHY | Shares | $38.4M | 243K |
| Veeva Systems Inc | VEEV | Shares | $36.2M | 206K |
| Proto Labs Inc | PRLB | Shares | $35.8M | 628K |
| Ncino Inc | NCNO | Shares | $35.6M | 2.4M |
| Tyler Technologies Inc | TYL | Shares | $33.9M | 99K |
| Costar Group Inc | CSGP | Shares | $33.3M | 825K |
| Tradeweb Markets Inc | TW | Shares | $29.3M | 249K |
| Badger Meter Inc | BMI | Shares | $28.3M | 186K |
| Azenta Inc | AZTA | Shares | $27.4M | 1.3M |
| Ipg Photonics Corp | IPGP | Shares | $23.9M | 209K |
| Aaon Inc | AAON | Shares | $22.9M | 277K |
| Morningstar Inc | MORN | Shares | $18.3M | 108K |
| Nice Ltd | NICE | Shares | $17.4M | 158K |
| Neogenomics Inc | NEO | Shares | $16.7M | 2.3M |
| Staar Surgical Co | STAA | Shares | $16.4M | 878K |
| Cerence Inc | CRNC | Shares | $15.9M | 2.5M |
| Dexcom Inc | DXCM | Shares | $15.8M | 251K |
| Vse Corp | VSEC | Shares | $15.6M | 85K |
| Cognex Corp | CGNX | Shares | $13.3M | 272K |
| Gentex Corp | GNTX | Shares | $11.7M | 534K |
| Esco Technologies Inc | ESE | Shares | $10.8M | 38K |
| Factset Research Systems Inc | FDS | Shares | $9.3M | 43K |
| Merit Medical Systems Inc | MMSI | Shares | $8.0M | 116K |
| O'Reilly Automotive Inc | ORLY | Shares | $8.0M | 86K |
| Synopsys Inc | SNPS | Shares | $7.7M | 19K |
| Qualys Inc | QLYS | Shares | $7.4M | 84K |
| Monolithic Power Systems Inc | MPWR | Shares | $6.9M | 6K |
| Dorman Products Inc | DORM | Shares | $6.3M | 60K |
| Quaker Chemical Corp | KWR | Shares | $4.8M | 39K |
| Sps Commerce Inc | SPSC | Shares | $4.8M | 86K |
| Kornit Digital Ltd | Shares | $4.1M | 283K | |
| Graham Corp | GHM | Shares | $4.1M | 52K |
| Insulet Corp | PODD | Shares | $4.0M | 19K |
| Haemonetics Corp | HAE | Shares | $3.8M | 67K |
| Balchem Corp | BCPC | Shares | $3.4M | 20K |
| Alarm.Com Holdings Inc | ALRM | Shares | $3.0M | 70K |
| Ishares Trust | SHY | Shares | $2.2M | 26K |
| Franklin Electric Co Inc | FELE | Shares | $2.0M | 22K |
| Spdr S&P 500 Etf Trust | SPY | Shares | $1.6M | 2K |
| Descartes Systems Group Inc (The) | DSGX | Shares | $1.4M | 19K |
| Neogen Corp | NEOG | Shares | $1.2M | 134K |
| Trimble Inc | TRMB | Shares | $1.2M | 19K |
| Hologic Inc | HOLX | Shares | $1.2M | 16K |
| Macom Technology Solutions Holding | MTSI | Shares | $873K | 4K |
| Aci Worldwide Inc | ACIW | Shares | $755K | 18K |
| Apple Inc | AAPL | Shares | $711K | 3K |
| Zebra Technologies Corp | ZBRA | Shares | $690K | 3K |
| Jfrog Ltd | Shares | $609K | 13K | |
| Novanta Inc | NOVT 6.5 11/01/28 | Shares | $542K | 10K |
| Blackbaud Inc | BLKB | Shares | $499K | 13K |
| Icon Plc | Shares | $362K | 3K | |
| Illumina Inc | ILMN | Shares | $274K | 2K |
| Merck & Company Inc | MRK | Shares | $253K | 2K |
| Spdr S&P Midcap 400 Etf Trust | MDY | Shares | $218K | 353 |
| Ishares Trust | ACWX | Shares | $208K | 3K |
Values as reported in public regulatory filings (USD); holdings are reported quarterly, up to 45 days after quarter end, and may contain reporting errors. Nothing here is investment advice.