American Capital Management Inc.

In its 13F for Q1 2024 (holdings as of March 31, 2024, filed May 15, 2024), American Capital Management Inc. reported 64 stock positions worth $3.1 billion. Its top holding was Cyberark Software Ltd./Israel (CYBR) at 6.9% of the portfolio, followed by Aerovironment (AVAV, 6.4%) and Fortinet (FTNT, 5.2%). Compared with Q4 2023, it added to 16 and reduced 38. The biggest buy was Commvault Systems (CVLT, shares +8%) and the biggest sale Qualys (QLYS, shares −4%).

Most Recent 13F
Q2 2026
Location
NEW YORK, NY
CIK
0001320168
Portfolio Value
$3.1B (Q1 2024)
SEC Filing
0001104659-24-062071 ↗ filed May 15, 2024

Holdings Value

0$1.0B$2.0B$3.0B$4.0B Q1 2024: $3.1B $3.1B Q1 2024 Q2 2024: $3.0B Q2 2024 Q3 2024: $3.1B Q3 2024 Q4 2024: $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 64 stocks · $3.1B

CYBR Cyberark Software Ltd./Israel 6.89% 808,667 $214.8M Reduce -4.2%
AVAV Aerovironment Inc. 6.37% 1,297,031 $198.8M Reduce -3.3%
FTNT Fortinet Inc. 5.16% 2,356,755 $161.0M Reduce -1.1%
MANH Manhattan Associates Inc. 5.14% 640,311 $160.2M Reduce -22.6%
IDXX Idexx Laboratories Inc. 5.07% 293,153 $158.3M Reduce -3.0%
MEDP Medpace Holdings Inc. 4.91% 379,161 $153.2M Reduce -4.0%
ICLR Icon PLC 4.74% 439,753 $147.7M Reduce -14.2%
NICE Nice Ltd. - Spon ADR 4.04% 484,092 $126.2M Reduce -1.5%
QLYS Qualys Inc. 3.51% 656,984 $109.6M Reduce -4.0%
RMD Resmed Inc. 3.15% 496,754 $98.4M Reduce -1.0%
ANSS Ansys Inc. 3.05% 274,340 $95.2M Reduce -1.3%
GNTX Gentex Corp. 2.74% 2,368,054 $85.5M Reduce -0.1%
FDS Factset Research Systems Inc. 2.73% 187,613 $85.2M Reduce -3.5%
JKHY Jack Henry & Associates Inc. filed as HENRY JACK & ASSOC INC 2.61% 468,688 $81.4M Reduce -0.0%
CSGP Costar Group Inc. 2.52% 813,599 $78.6M Reduce -0.8%
CVLT Commvault Systems Inc. 2.48% 761,771 $77.3M Add +8.2%
VEEV Veeva Systems Inc. Class A 2.40% 322,511 $74.7M Reduce -0.3%
TECH Bio-Techne Corp. 2.29% 1,016,556 $71.6M Add +5.9%
CGNX Cognex Corp. 2.06% 1,518,146 $64.4M Add +0.2%
RBC RBC Bearings Inc. 1.89% 218,032 $58.9M Reduce -2.8%
GWRE Guidewire Software Inc. 1.64% 438,151 $51.1M Reduce -2.1%
CRL Charles River Laboratories 1.59% 183,300 $49.7M No change
DXCM Dexcom Inc. 1.58% 355,546 $49.3M Reduce -2.2%
CGNT Cognyte Software Ltd. 1.54% 5,801,681 $48.0M Reduce -0.0%
RAMP Liveramp Holdings Inc. 1.44% 1,300,023 $44.9M Add +58.1%
MORN Morningstar Inc. 1.42% 143,256 $44.2M Add +0.4%
KTOS Kratos Defense & Security 1.34% 2,281,299 $41.9M Add +91.0%
RGEN Repligen Corp. 1.34% 227,310 $41.8M Reduce -2.3%
VRNT Verint Systems Inc. 1.28% 1,206,190 $40.0M Reduce -0.6%
KRNT Kornit Digital Ltd. 1.26% 2,173,636 $39.4M Reduce -0.8%
NEOG Neogen Corp. 1.08% 2,132,264 $33.6M Add +19.7%
BLKB Blackbaud Inc. 1.06% 444,260 $32.9M Reduce -8.0%
SPSC SPS Commerce Inc. 1.04% 174,689 $32.3M Add +4.4%
TW Tradeweb Markets Inc. Class A 0.98% 294,546 $30.7M Reduce -3.6%
PAYC Paycom Software Inc. 0.98% 153,050 $30.5M Add +15.8%
CRNC Cerence Inc. 0.77% 1,515,826 $23.9M Add +20.6%
SEIC Sei Investments Company 0.70% 305,609 $22.0M Reduce -0.4%
AZTA Azenta Inc. 0.63% 325,299 $19.6M Add +0.0%
AZPN Aspen Technology Inc. 0.61% 89,254 $19.0M Reduce -1.4%
ACIW Aci Worldwide Inc. 0.53% 498,330 $16.5M Add +2.0%
DORM Dorman Products Inc. 0.43% 138,080 $13.3M No change
STAA Staar Surgical Co. 0.42% 342,740 $13.1M Add +60.4%
ALRM Alarm.com Holdings Inc. 0.40% 171,896 $12.5M Reduce -8.6%
TYL Tyler Technologies Inc. 0.37% 27,204 $11.6M Add +13.7%
ILMN Illumina Inc. 0.31% 69,849 $9.6M Reduce -7.5%
OSUR Orasure Technologies Inc. 0.27% 1,387,369 $8.5M Reduce -3.0%
HAE Haemonetics Corp. 0.22% 80,295 $6.9M Reduce -0.9%
MPWR Monolithic Power Systems Inc. 0.20% 9,144 $6.2M Reduce -1.4%
MMSI Merit Medical Systems Inc. 0.17% 68,430 $5.2M Add +31.3%
IPGP Ipg Photonics Corp. 0.10% 35,825 $3.2M Reduce -3.5%
DLB Dolby Laboratories Inc. Class A 0.09% 32,989 $2.8M Reduce -47.5%
FELE Franklin Electric Co. Inc. 0.09% 25,000 $2.7M No change
PODD Insulet Corp. 0.06% 11,433 $2.0M Reduce -2.8%
FORR Forrester Research Inc. 0.06% 79,955 $1.7M Reduce -10.1%
QDEL Quidelortho Corp. 0.05% 35,540 $1.7M No change
TRMB Trimble Inc. 0.05% 22,000 $1.4M No change
SPY SS SPDR S&P 500 ETF Trust-US 0.04% 2,666 $1.4M No change
ORLY O'reilly Automotive Inc. 0.03% 750 $847K No change
GHM Graham Corp. 0.02% 24,250 $662K No change
VRNS Varonis Systems Inc. 0.02% 13,094 $618K Add +0.6%
FWRD Forward Air Corp. 0.01% 14,737 $458K Reduce -76.3%
GLOB Globant SA 0.01% 1,872 $378K Reduce -21.3%
ZBRA Zebra Technologies Corp. Class A 0.01% 1,100 $332K No change
AAPL Apple Inc. 0.01% 1,316 $226K No change

Portfolio Sells Q4 2023 → Q1 2024

QLYS Qualys Inc. Reduce -4.0% 3.51% −1.08
MANH Manhattan Associates Inc. Reduce -22.6% 5.14% −0.95
IDXX Idexx Laboratories Inc. Reduce -3.0% 5.07% −0.67
FDS Factset Research Systems Inc. Reduce -3.5% 2.73% −0.44
ANSS Ansys Inc. Reduce -1.3% 3.05% −0.40
BLKB Blackbaud Inc. Reduce -8.0% 1.06% −0.38
RBC RBC Bearings Inc. Reduce -2.8% 1.89% −0.30
ICLR Icon PLC Reduce -14.2% 4.74% −0.23
KRNT Kornit Digital Ltd. Reduce -0.8% 1.26% −0.17
OSUR Orasure Technologies Inc. Reduce -3.0% 0.27% −0.13
FWRD Forward Air Corp. Reduce -76.3% 0.01% −0.12
DLB Dolby Laboratories Inc. Class A Reduce -47.5% 0.09% −0.10
RGEN Repligen Corp. Reduce -2.3% 1.34% −0.09
AZPN Aspen Technology Inc. Reduce -1.4% 0.61% −0.07
ILMN Illumina Inc. Reduce -7.5% 0.31% −0.05
IPGP Ipg Photonics Corp. Reduce -3.5% 0.10% −0.03
GWRE Guidewire Software Inc. Reduce -2.1% 1.64% −0.03
FORR Forrester Research Inc. Reduce -10.1% 0.06% −0.03
PODD Insulet Corp. Reduce -2.8% 0.06% −0.02
HAE Haemonetics Corp. Reduce -0.9% 0.22% −0.02
ALRM Alarm.com Holdings Inc. Reduce -8.6% 0.40% −0.02
JKHY Jack Henry & Associates Inc. Reduce -0.0% 2.61% −0.01
GLOB Globant SA Reduce -21.3% 0.01% −0.01
MPWR Monolithic Power Systems Inc. Reduce -1.4% 0.20% −0.00
TW Tradeweb Markets Inc. Class A Reduce -3.6% 0.98% +0.03
SEIC Sei Investments Company Reduce -0.4% 0.70% +0.04
DXCM Dexcom Inc. Reduce -2.2% 1.58% +0.04
CSGP Costar Group Inc. Reduce -0.8% 2.52% +0.07
GNTX Gentex Corp. Reduce -0.1% 2.74% +0.09
VRNT Verint Systems Inc. Reduce -0.6% 1.28% +0.16
RMD Resmed Inc. Reduce -1.0% 3.15% +0.20
CGNT Cognyte Software Ltd. Reduce -0.0% 1.54% +0.26
VEEV Veeva Systems Inc. Class A Reduce -0.3% 2.40% +0.27
FTNT Fortinet Inc. Reduce -1.1% 5.16% +0.39
CYBR Cyberark Software Ltd./Israel Reduce -4.2% 6.89% +0.56
AVAV Aerovironment Inc. Reduce -3.3% 6.37% +0.59
NICE Nice Ltd. - Spon ADR Reduce -1.5% 4.04% +0.69
MEDP Medpace Holdings Inc. Reduce -4.0% 4.91% +0.77

Portfolio Buys Q4 2023 → Q1 2024

CVLT Commvault Systems Inc. Add +8.2% 2.48% +0.55
KTOS Kratos Defense & Security Add +91.0% 1.34% +0.52
RAMP Liveramp Holdings Inc. Add +58.1% 1.44% +0.37
STAA Staar Surgical Co. Add +60.4% 0.42% +0.19
PAYC Paycom Software Inc. Add +15.8% 0.98% +0.04
MMSI Merit Medical Systems Inc. Add +31.3% 0.17% +0.03
TYL Tyler Technologies Inc. Add +13.7% 0.37% +0.03
ACIW Aci Worldwide Inc. Add +2.0% 0.53% +0.02
MORN Morningstar Inc. Add +0.4% 1.42% +0.02
VRNS Varonis Systems Inc. Add +0.6% 0.02% −0.00
SPSC SPS Commerce Inc. Add +4.4% 1.04% −0.07
CRNC Cerence Inc. Add +20.6% 0.77% −0.08
AZTA Azenta Inc. Add +0.0% 0.63% −0.10
CGNX Cognex Corp. Add +0.2% 2.06% −0.10
NEOG Neogen Corp. Add +19.7% 1.08% −0.15
TECH Bio-Techne Corp. Add +5.9% 2.29% −0.24

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