American Capital Management Inc.

In its 13F for Q4 2024 (holdings as of December 31, 2024, filed February 11, 2025), American Capital Management Inc. reported 63 stock positions worth $2.7 billion. Its top holding was Cyberark Software Ltd./Israel (CYBR) at 8.0% of the portfolio, followed by Aerovironment (AVAV, 5.3%) and Fortinet (FTNT, 5.2%). Compared with Q3 2024, it opened 3 new positions, sold out of 1, added to 12 and reduced 37. The biggest buy was Sei Investments (SEIC, shares +63%) and the biggest sale Aerovironment (AVAV, shares −21%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001320168
Portfolio Value
$2.7B (Q4 2024)
SEC Filing
0001104659-25-011376 ↗ filed Feb 11, 2025

Holdings Value

0$1.0B$2.0B$3.0B$4.0B Q1 2024: $3.1B Q1 2024 Q2 2024: $3.0B Q2 2024 Q3 2024: $3.1B Q3 2024 Q4 2024: $2.7B $2.7B Q4 2024 Q1 2025: $2.5B Q1 2025 Q2 2025: $2.4B Q2 2025 Q3 2025: $2.5B Q3 2025 Q4 2025: $2.3B Q4 2025 Q1 2026: $1.9B Q1 2026 Q2 2026: $2.2B Q2 2026

Holdings 63 stocks · $2.7B

CYBR Cyberark Software Ltd./Israel 7.97% 642,409 $214.0M Reduce -18.1%
AVAV Aerovironment Inc. 5.33% 930,694 $143.2M Reduce -21.3%
FTNT Fortinet Inc. 5.24% 1,491,138 $140.9M Reduce -19.3%
MANH Manhattan Associates Inc. 4.32% 429,756 $116.1M Reduce -23.9%
MEDP Medpace Holdings Inc. 4.07% 329,435 $109.4M Reduce -13.4%
CVLT Commvault Systems Inc. 3.91% 695,409 $104.9M Reduce -9.4%
RMD Resmed Inc. 3.34% 392,765 $89.8M Reduce -14.4%
IDXX Idexx Laboratories Inc. 3.17% 206,062 $85.2M Reduce -17.2%
FDS Factset Research Systems Inc. 3.11% 173,993 $83.6M Reduce -6.0%
NICE Nice Ltd. - Spon ADR 2.89% 456,740 $77.6M Reduce -15.5%
TECH Bio-Techne Corp. 2.85% 1,063,866 $76.6M Reduce -4.5%
QLYS Qualys Inc. 2.80% 537,297 $75.3M Reduce -21.6%
JKHY Jack Henry & Associates Inc. filed as HENRY JACK & ASSOC INC 2.71% 414,617 $72.7M Reduce -11.1%
GWRE Guidewire Software Inc. 2.59% 412,418 $69.5M Reduce -4.4%
RBC RBC Bearings Inc. 2.53% 227,267 $68.0M Add +4.4%
KTOS Kratos Defense & Security 2.53% 2,573,499 $67.9M Reduce -4.5%
CSGP Costar Group Inc. 2.50% 936,988 $67.1M Add +1.0%
RAMP Liveramp Holdings Inc. 2.45% 2,169,922 $65.9M Reduce -24.6%
VEEV Veeva Systems Inc. Class A 2.27% 289,895 $61.0M Reduce -11.2%
GNTX Gentex Corp. 2.25% 2,106,185 $60.5M Reduce -8.3%
KRNT Kornit Digital Ltd. 2.18% 1,896,319 $58.7M Reduce -12.1%
CGNT Cognyte Software Ltd. 2.06% 6,382,189 $55.2M Reduce -0.3%
RGEN Repligen Corp. 2.06% 383,529 $55.2M Add +1.2%
CGNX Cognex Corp. 1.94% 1,453,402 $52.1M Reduce -9.3%
AZPN Aspen Technology Inc. 1.65% 177,145 $44.2M Reduce -9.3%
MORN Morningstar Inc. 1.61% 128,692 $43.3M Reduce -10.8%
NEOG Neogen Corp. 1.60% 3,550,852 $43.1M Add +4.0%
NCNO Ncino Inc. 1.56% 1,250,099 $42.0M Add +21.4%
SEIC Sei Investments Company 1.53% 497,200 $41.0M Add +63.4%
TW Tradeweb Markets Inc. Class A 1.45% 298,237 $39.0M Add +1.4%
SPSC SPS Commerce Inc. 1.41% 205,720 $37.9M Add +22.2%
ANSS Ansys Inc. 1.38% 110,006 $37.1M Reduce -47.2%
AZTA Azenta Inc. 1.23% 659,652 $33.0M Add +93.7%
PAYC Paycom Software Inc. 1.18% 154,888 $31.7M Reduce -8.6%
CRNC Cerence Inc. 1.02% 3,488,944 $27.4M Reduce -11.0%
VRNS Varonis Systems Inc. 1.01% 611,265 $27.2M Add +293.9%
BLKB Blackbaud Inc. 0.99% 359,771 $26.6M Reduce -16.2%
DXCM Dexcom Inc. 0.89% 306,004 $23.8M Reduce -13.5%
STAA Staar Surgical Co. 0.77% 848,416 $20.6M Add +65.4%
ICLR Icon PLC 0.63% 81,279 $17.0M Reduce -54.2%
TYL Tyler Technologies Inc. 0.58% 26,992 $15.6M Reduce -0.8%
TREX Trex Company Inc. 0.41% 160,310 $11.1M New
ALRM Alarm.com Holdings Inc. 0.29% 128,276 $7.8M Reduce -3.7%
MMSI Merit Medical Systems Inc. 0.29% 80,438 $7.8M Add +3.4%
CRL Charles River Laboratories 0.26% 37,800 $7.0M Reduce -74.4%
HAE Haemonetics Corp. 0.23% 79,995 $6.2M No change
MPWR Monolithic Power Systems Inc. 0.16% 7,116 $4.2M Reduce -0.3%
PODD Insulet Corp. 0.14% 14,800 $3.9M No change
GMED Globus Medical Inc. Class A 0.10% 33,110 $2.7M New
FELE Franklin Electric Co. Inc. 0.09% 25,000 $2.4M No change
DORM Dorman Products Inc. 0.09% 18,190 $2.4M Reduce -86.8%
VRNT Verint Systems Inc. 0.06% 58,658 $1.6M Reduce -3.5%
SPY SS SPDR S&P 500 ETF Trust-US 0.06% 2,666 $1.6M No change
TRMB Trimble Inc. 0.06% 22,000 $1.6M No change
GHM Graham Corp. 0.04% 23,250 $1.0M No change
ACIW Aci Worldwide Inc. 0.04% 18,380 $954K Reduce -96.3%
DSGX The Descartes Systems Grp 0.03% 7,143 $811K New
ORLY O'reilly Automotive Inc. 0.03% 600 $711K No change
GLOB Globant SA 0.01% 1,871 $401K No change
ZBRA Zebra Technologies Corp. Class A 0.01% 900 $348K No change
AAPL Apple Inc. 0.01% 1,316 $330K No change
ILMN Illumina Inc. 0.01% 2,275 $304K Reduce -9.4%
MDY State Street SPDR S&P Midcap 0.01% 353 $201K No change

Portfolio Sells Q3 2024 → Q4 2024

AVAV Aerovironment Inc. Reduce -21.3% 5.33% −2.42
ICLR Icon PLC Reduce -54.2% 0.63% −1.03
IDXX Idexx Laboratories Inc. Reduce -17.2% 3.17% −0.94
MANH Manhattan Associates Inc. Reduce -23.9% 4.32% −0.87
ACIW Aci Worldwide Inc. Reduce -96.3% 0.04% −0.79
ANSS Ansys Inc. Reduce -47.2% 1.38% −0.79
CRL Charles River Laboratories Reduce -74.4% 0.26% −0.69
DORM Dorman Products Inc. Reduce -86.8% 0.09% −0.42
RMD Resmed Inc. Reduce -14.4% 3.34% −0.32
BLKB Blackbaud Inc. Reduce -16.2% 0.99% −0.20
CGNX Cognex Corp. Reduce -9.3% 1.94% −0.18
NICE Nice Ltd. - Spon ADR Reduce -15.5% 2.89% −0.18
MEDP Medpace Holdings Inc. Reduce -13.4% 4.07% −0.08
QLYS Qualys Inc. Reduce -21.6% 2.80% −0.07
TECH Bio-Techne Corp. Reduce -4.5% 2.85% −0.06
MPWR Monolithic Power Systems Inc. Reduce -0.3% 0.16% −0.06
OSUR Orasure Technologies Inc. Sold out 0.00% −0.04
ILMN Illumina Inc. Reduce -9.4% 0.01% +0.00
GWRE Guidewire Software Inc. Reduce -4.4% 2.59% +0.01
VRNT Verint Systems Inc. Reduce -3.5% 0.06% +0.01
JKHY Jack Henry & Associates Inc. Reduce -11.1% 2.71% +0.01
GNTX Gentex Corp. Reduce -8.3% 2.25% +0.02
VEEV Veeva Systems Inc. Class A Reduce -11.2% 2.27% +0.03
CVLT Commvault Systems Inc. Reduce -9.4% 3.91% +0.04
ALRM Alarm.com Holdings Inc. Reduce -3.7% 0.29% +0.05
TYL Tyler Technologies Inc. Reduce -0.8% 0.58% +0.06
MORN Morningstar Inc. Reduce -10.8% 1.61% +0.11
DXCM Dexcom Inc. Reduce -13.5% 0.89% +0.11
AZPN Aspen Technology Inc. Reduce -9.3% 1.65% +0.12
RAMP Liveramp Holdings Inc. Reduce -24.6% 2.45% +0.12
PAYC Paycom Software Inc. Reduce -8.6% 1.18% +0.26
FDS Factset Research Systems Inc. Reduce -6.0% 3.11% +0.33
KRNT Kornit Digital Ltd. Reduce -12.1% 2.18% +0.36
KTOS Kratos Defense & Security Reduce -4.5% 2.53% +0.47
CYBR Cyberark Software Ltd./Israel Reduce -18.1% 7.97% +0.49
FTNT Fortinet Inc. Reduce -19.3% 5.24% +0.56
CRNC Cerence Inc. Reduce -11.0% 1.02% +0.62
CGNT Cognyte Software Ltd. Reduce -0.3% 2.06% +0.63

Portfolio Buys Q3 2024 → Q4 2024

SEIC Sei Investments Company Add +63.4% 1.53% +0.84
VRNS Varonis Systems Inc. Add +293.9% 1.01% +0.72
AZTA Azenta Inc. Add +93.7% 1.23% +0.69
NCNO Ncino Inc. Add +21.4% 1.56% +0.50
TREX Trex Company Inc. New 0.41% +0.41
RBC RBC Bearings Inc. Add +4.4% 2.53% +0.40
SPSC SPS Commerce Inc. Add +22.2% 1.41% +0.34
TW Tradeweb Markets Inc. Class A Add +1.4% 1.45% +0.26
RGEN Repligen Corp. Add +1.2% 2.06% +0.21
CSGP Costar Group Inc. Add +1.0% 2.50% +0.21
STAA Staar Surgical Co. Add +65.4% 0.77% +0.14
GMED Globus Medical Inc. Class A New 0.10% +0.10
MMSI Merit Medical Systems Inc. Add +3.4% 0.29% +0.04
DSGX The Descartes Systems Grp New 0.03% +0.03
NEOG Neogen Corp. Add +4.0% 1.60% −0.27

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2026 79$2.2BPANW, FTNT, MEDP, VRNS, RBC
Q1 2026 74$1.9BMEDP, PANW, RBC, IDXX, AVAV
Q4 2025 68$2.3BAVAV, CYBR, MEDP, KTOS, IDXX
Q3 2025 68$2.5BAVAV, KTOS, CYBR, MEDP, IDXX
Q2 2025 63$2.4BAVAV, CYBR, FTNT, KTOS, IDXX
Q1 2025 63$2.5BCYBR, FTNT, AVAV, CVLT, MEDP
Q4 2024 63$2.7BCYBR, AVAV, FTNT, MANH, MEDP
Q3 2024 61$3.1BAVAV, CYBR, MANH, FTNT, MEDP
Q2 2024 62$3.0BAVAV, CYBR, MANH, MEDP, IDXX
Q1 2024 64$3.1BCYBR, AVAV, FTNT, MANH, IDXX