American Capital Management Inc.
In its 13F for Q1 2026 (holdings as of March 31, 2026, filed May 15, 2026), American Capital Management Inc. reported 74 stock positions worth $1.9 billion. Its top holding was Medpace (MEDP) at 5.6% of the portfolio, followed by Palo Alto Networks (PANW, 5.4%) and RBC Bearings (RBC, 5.1%). Compared with Q4 2025, it opened 8 new positions, sold out of 2, added to 20 and reduced 35. The biggest buy was a new position in Palo Alto Networks (PANW) and the biggest sale an exit from Cyberark Software Ltd./Israel (CYBR).
- Most Recent 13F
- Q2 2026
- Location
- NEW YORK, NY
- CIK
- 0001320168
- Portfolio Value
- $1.9B (Q1 2026)
- SEC Filing
- 0001104659-26-062771 ↗ filed May 15, 2026
Holdings Value
Holdings 74 stocks · $1.9B
| MEDP Medpace Holdings Inc. | 5.62% | 217,947 | $104.7M | Reduce -2.9% |
| PANW Palo Alto Networks Inc. | 5.38% | 624,084 | $100.1M | New |
| RBC RBC Bearings Inc. | 5.12% | 175,443 | $95.3M | Reduce -18.1% |
| IDXX Idexx Laboratories Inc. | 5.01% | 166,056 | $93.3M | Reduce -8.6% |
| AVAV Aerovironment Inc. | 4.29% | 436,367 | $79.9M | Reduce -32.6% |
| KTOS Kratos Defense & Security | 4.06% | 1,071,908 | $75.6M | Reduce -34.4% |
| FTNT Fortinet Inc. | 3.64% | 828,923 | $67.7M | Reduce -10.5% |
| SEIC Sei Investments Company | 3.24% | 768,615 | $60.3M | Add +33.7% |
| RMD Resmed Inc. | 3.20% | 265,399 | $59.6M | Reduce -13.5% |
| GMED Globus Medical Inc. Class A | 3.07% | 663,049 | $57.1M | Add +36.4% |
| TECH Bio-Techne Corp. | 2.87% | 1,021,128 | $53.4M | Add +8.5% |
| CGNT Cognyte Software Ltd. | 2.83% | 6,496,210 | $52.6M | Reduce -3.2% |
| VRNS Varonis Systems Inc. | 2.69% | 2,328,379 | $50.0M | Add +54.3% |
| RAMP Liveramp Holdings Inc. | 2.66% | 1,863,589 | $49.4M | Reduce -0.8% |
| GWRE Guidewire Software Inc. | 2.60% | 324,196 | $48.5M | Reduce -0.4% |
| MANH Manhattan Associates Inc. | 2.56% | 357,807 | $47.6M | Reduce -2.5% |
| NOVT Novanta Inc. | 2.37% | 373,874 | $44.2M | Reduce -2.1% |
| RGEN Repligen Corp. | 2.26% | 357,720 | $42.1M | Add +6.8% |
| CVLT Commvault Systems Inc. | 2.26% | 540,845 | $42.1M | Add +1.3% |
| DT Dynatrace Inc. | 2.09% | 1,054,267 | $39.0M | New |
| JKHY Jack Henry & Associates Inc. filed as HENRY JACK & ASSOC INC | 2.06% | 243,075 | $38.4M | Reduce -3.3% |
| VEEV Veeva Systems Inc. Class A | 1.95% | 206,218 | $36.2M | Reduce -7.3% |
| PRLB Proto Labs Inc. | 1.92% | 627,705 | $35.8M | Reduce -0.6% |
| NCNO Ncino Inc. | 1.91% | 2,375,396 | $35.6M | Add +17.1% |
| TYL Tyler Technologies Inc. | 1.82% | 98,942 | $33.9M | Add +348.9% |
| CSGP Costar Group Inc. | 1.79% | 825,296 | $33.3M | Reduce -0.0% |
| TW Tradeweb Markets Inc. Class A | 1.58% | 249,247 | $29.3M | Reduce -3.7% |
| BMI Badger Meter Inc. | 1.52% | 185,841 | $28.3M | New |
| AZTA Azenta Inc. | 1.47% | 1,296,024 | $27.4M | Add +26.9% |
| IPGP Ipg Photonics Corp. | 1.29% | 208,918 | $23.9M | Reduce -11.3% |
| AAON Aaon Inc. | 1.23% | 276,884 | $22.9M | Add +1.9% |
| MORN Morningstar Inc. | 0.98% | 108,340 | $18.3M | Reduce -4.2% |
| NICE Nice Ltd. - Spon ADR | 0.93% | 157,593 | $17.4M | Reduce -45.9% |
| NEO Neogenomics Inc. | 0.90% | 2,250,878 | $16.7M | Reduce -3.2% |
| STAA Staar Surgical Co. | 0.88% | 878,035 | $16.4M | Add +18.7% |
| CRNC Cerence Inc. | 0.85% | 2,519,289 | $15.9M | Reduce -5.1% |
| DXCM Dexcom Inc. | 0.85% | 251,475 | $15.8M | Add +1.1% |
| VSEC Vse Corp. | 0.84% | 84,795 | $15.6M | Add +1027.1% |
| CGNX Cognex Corp. | 0.71% | 271,533 | $13.3M | Reduce -25.5% |
| GNTX Gentex Corp. | 0.63% | 534,356 | $11.7M | Reduce -7.8% |
| ESE Esco Technologies Inc. | 0.58% | 38,414 | $10.8M | New |
| FDS Factset Research Systems Inc. | 0.50% | 43,008 | $9.3M | Reduce -68.1% |
| MMSI Merit Medical Systems Inc. | 0.43% | 115,775 | $8.0M | Add +24.4% |
| ORLY O'reilly Automotive Inc. | 0.43% | 86,235 | $8.0M | No change |
| SNPS Synopsys Inc. | 0.41% | 19,453 | $7.7M | Reduce -4.8% |
| QLYS Qualys Inc. | 0.40% | 83,752 | $7.4M | Reduce -79.3% |
| MPWR Monolithic Power Systems Inc. | 0.37% | 6,320 | $6.9M | Reduce -2.6% |
| DORM Dorman Products Inc. | 0.34% | 60,435 | $6.3M | Add +196.2% |
| KWR Quaker Chemical Corporation | 0.26% | 38,642 | $4.8M | Add +47.8% |
| SPSC SPS Commerce Inc. | 0.26% | 86,076 | $4.8M | Reduce -71.9% |
| KRNT Kornit Digital Ltd. | 0.22% | 282,976 | $4.1M | Reduce -0.6% |
| GHM Graham Corp. | 0.22% | 51,520 | $4.1M | Add +10.1% |
| PODD Insulet Corp. | 0.22% | 19,275 | $4.0M | Add +2.0% |
| HAE Haemonetics Corp. | 0.20% | 66,915 | $3.8M | Reduce -10.1% |
| BCPC Balchem Corp. | 0.18% | 20,102 | $3.4M | New |
| ALRM Alarm.com Holdings Inc. | 0.16% | 69,804 | $3.0M | Reduce -5.3% |
| SHY iShares 1-3 Year Treasury Bo | 0.12% | 26,490 | $2.2M | New |
| FELE Franklin Electric Co. Inc. | 0.11% | 22,000 | $2.0M | No change |
| SPY SS SPDR S&P 500 ETF Trust-US | 0.08% | 2,425 | $1.6M | Reduce -4.3% |
| DSGX The Descartes Systems Grp | 0.07% | 19,138 | $1.4M | Add +12.9% |
| NEOG Neogen Corp. | 0.07% | 133,657 | $1.2M | Reduce -90.4% |
| TRMB Trimble Inc. | 0.07% | 19,000 | $1.2M | No change |
| HOLX Hologic Inc. | 0.07% | 16,280 | $1.2M | No change |
| MTSI Macom Technology Solutions H | 0.05% | 3,929 | $873K | New |
| ACIW Aci Worldwide Inc. | 0.04% | 18,410 | $755K | No change |
| AAPL Apple Inc. | 0.04% | 2,800 | $711K | No change |
| ZBRA Zebra Technologies Corp. Class A | 0.04% | 3,300 | $690K | No change |
| FROG Jfrog Ltd. | 0.03% | 12,979 | $609K | Add +18.6% |
| BLKB Blackbaud Inc. | 0.03% | 12,930 | $499K | No change |
| ICLR Icon PLC | 0.02% | 3,270 | $362K | Reduce -86.2% |
| ILMN Illumina Inc. | 0.01% | 2,220 | $274K | No change |
| MRK Merck & Co. Inc. | 0.01% | 2,100 | $253K | No change |
| MDY State Street SPDR S&P Midcap | 0.01% | 353 | $218K | No change |
| ACWX iShares MSCI Acwi Ex US ETF | 0.01% | 3,040 | $208K | New |
Other holdings (1): bonds, preferreds, convertibles and warrants · $542K (not counted above)
| Security | Class | Shares / Principal | Value | Change |
|---|---|---|---|---|
| NOVANTA INC (NOVT 6.5 11/01/28) | UNIT 11/01/2028 | 10,100 | $542K | New |
Total filed on the 13F, all lines: $1.9B.
Portfolio Sells Q4 2025 → Q1 2026
| CYBR Cyberark Software Ltd./Israel | Sold out | 0.00% | −6.73 |
| AVAV Aerovironment Inc. | Reduce -32.6% | 4.29% | −2.62 |
| QLYS Qualys Inc. | Reduce -79.3% | 0.40% | −1.97 |
| KTOS Kratos Defense & Security | Reduce -34.4% | 4.06% | −1.41 |
| FDS Factset Research Systems Inc. | Reduce -68.1% | 0.50% | −1.23 |
| SPSC SPS Commerce Inc. | Reduce -71.9% | 0.26% | −0.95 |
| CSGP Costar Group Inc. | Reduce -0.0% | 1.79% | −0.66 |
| NICE Nice Ltd. - Spon ADR | Reduce -45.9% | 0.93% | −0.52 |
| IDXX Idexx Laboratories Inc. | Reduce -8.6% | 5.01% | −0.41 |
| CRNC Cerence Inc. | Reduce -5.1% | 0.85% | −0.40 |
| NEOG Neogen Corp. | Reduce -90.4% | 0.07% | −0.36 |
| NEO Neogenomics Inc. | Reduce -3.2% | 0.90% | −0.31 |
| GWRE Guidewire Software Inc. | Reduce -0.4% | 2.60% | −0.28 |
| SMMD iShares Russell 2500 ETF | Sold out | 0.00% | −0.26 |
| MANH Manhattan Associates Inc. | Reduce -2.5% | 2.56% | −0.25 |
| VEEV Veeva Systems Inc. Class A | Reduce -7.3% | 1.95% | −0.24 |
| ICLR Icon PLC | Reduce -86.2% | 0.02% | −0.17 |
| MORN Morningstar Inc. | Reduce -4.2% | 0.98% | −0.10 |
| RMD Resmed Inc. | Reduce -13.5% | 3.20% | −0.06 |
| HAE Haemonetics Corp. | Reduce -10.1% | 0.20% | −0.06 |
| SNPS Synopsys Inc. | Reduce -4.8% | 0.41% | −0.01 |
| ALRM Alarm.com Holdings Inc. | Reduce -5.3% | 0.16% | −0.00 |
| SPY SS SPDR S&P 500 ETF Trust-US | Reduce -4.3% | 0.08% | +0.01 |
| GNTX Gentex Corp. | Reduce -7.8% | 0.63% | +0.03 |
| JKHY Jack Henry & Associates Inc. | Reduce -3.3% | 2.06% | +0.04 |
| KRNT Kornit Digital Ltd. | Reduce -0.6% | 0.22% | +0.04 |
| CGNT Cognyte Software Ltd. | Reduce -3.2% | 2.83% | +0.04 |
| MEDP Medpace Holdings Inc. | Reduce -2.9% | 5.62% | +0.06 |
| MPWR Monolithic Power Systems Inc. | Reduce -2.6% | 0.37% | +0.11 |
| CGNX Cognex Corp. | Reduce -25.5% | 0.71% | +0.14 |
| RAMP Liveramp Holdings Inc. | Reduce -0.8% | 2.66% | +0.22 |
| TW Tradeweb Markets Inc. Class A | Reduce -3.7% | 1.58% | +0.35 |
| NOVT Novanta Inc. | Reduce -2.1% | 2.37% | +0.37 |
| FTNT Fortinet Inc. | Reduce -10.5% | 3.64% | +0.40 |
| PRLB Proto Labs Inc. | Reduce -0.6% | 1.92% | +0.51 |
| IPGP Ipg Photonics Corp. | Reduce -11.3% | 1.29% | +0.54 |
| RBC RBC Bearings Inc. | Reduce -18.1% | 5.12% | +0.88 |
Portfolio Buys Q4 2025 → Q1 2026
| PANW Palo Alto Networks Inc. | New | 5.38% | +5.38 |
| DT Dynatrace Inc. | New | 2.09% | +2.09 |
| BMI Badger Meter Inc. | New | 1.52% | +1.52 |
| TYL Tyler Technologies Inc. | Add +348.9% | 1.82% | +1.38 |
| GMED Globus Medical Inc. Class A | Add +36.4% | 3.07% | +1.20 |
| SEIC Sei Investments Company | Add +33.7% | 3.24% | +1.16 |
| VSEC Vse Corp. | Add +1027.1% | 0.84% | +0.78 |
| ESE Esco Technologies Inc. | New | 0.58% | +0.58 |
| VRNS Varonis Systems Inc. | Add +54.3% | 2.69% | +0.50 |
| TECH Bio-Techne Corp. | Add +8.5% | 2.87% | +0.42 |
| AAON Aaon Inc. | Add +1.9% | 1.23% | +0.32 |
| DORM Dorman Products Inc. | Add +196.2% | 0.34% | +0.23 |
| BCPC Balchem Corp. | New | 0.18% | +0.18 |
| STAA Staar Surgical Co. | Add +18.7% | 0.88% | +0.13 |
| DXCM Dexcom Inc. | Add +1.1% | 0.85% | +0.12 |
| SHY iShares 1-3 Year Treasury Bo | New | 0.12% | +0.12 |
| KWR Quaker Chemical Corporation | Add +47.8% | 0.26% | +0.10 |
| GHM Graham Corp. | Add +10.1% | 0.22% | +0.09 |
| MMSI Merit Medical Systems Inc. | Add +24.4% | 0.43% | +0.07 |
| MTSI Macom Technology Solutions H | New | 0.05% | +0.05 |
| ACWX iShares MSCI Acwi Ex US ETF | New | 0.01% | +0.01 |
| DSGX The Descartes Systems Grp | Add +12.9% | 0.07% | +0.01 |
| FROG Jfrog Ltd. | Add +18.6% | 0.03% | +0.00 |
| PODD Insulet Corp. | Add +2.0% | 0.22% | −0.02 |
| AZTA Azenta Inc. | Add +26.9% | 1.47% | −0.03 |
| RGEN Repligen Corp. | Add +6.8% | 2.26% | −0.16 |
| NCNO Ncino Inc. | Add +17.1% | 1.91% | −0.38 |
| CVLT Commvault Systems Inc. | Add +1.3% | 2.26% | −0.69 |
Notes & Other Activity Q4 2025 → Q1 2026
| NOVANTA INC (NOVT 6.5 11/01/28) | UNIT 11/01/2028 | New | 10,100 | $542K |
Bonds, preferreds, convertibles and warrants; not part of the stock holdings or percentages above.
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 79 | $2.2B | PANW, FTNT, MEDP, VRNS, RBC |
| Q1 2026 | 74 | $1.9B | MEDP, PANW, RBC, IDXX, AVAV |
| Q4 2025 | 68 | $2.3B | AVAV, CYBR, MEDP, KTOS, IDXX |
| Q3 2025 | 68 | $2.5B | AVAV, KTOS, CYBR, MEDP, IDXX |
| Q2 2025 | 63 | $2.4B | AVAV, CYBR, FTNT, KTOS, IDXX |
| Q1 2025 | 63 | $2.5B | CYBR, FTNT, AVAV, CVLT, MEDP |
| Q4 2024 | 63 | $2.7B | CYBR, AVAV, FTNT, MANH, MEDP |
| Q3 2024 | 61 | $3.1B | AVAV, CYBR, MANH, FTNT, MEDP |
| Q2 2024 | 62 | $3.0B | AVAV, CYBR, MANH, MEDP, IDXX |
| Q1 2024 | 64 | $3.1B | CYBR, AVAV, FTNT, MANH, IDXX |