# AMERICAN CAPITAL MANAGEMENT INC: Form 13F holdings

An institutional investment manager in NEW YORK, NY. SEC CIK 1320168.

- Quarter ended: 2026-06-30
- Filed: 2026-08-14
- Reported value: $2.23bn
- Positions: 80 (80 lines in the filing's table; lines for the same security and option type are added together here)
- Compared with: the 13F for the quarter ended 2026-03-31
- Filing: https://www.sec.gov/Archives/edgar/data/1320168/000110465926097334/

## Holdings

As filed, largest first. Reported value is what the manager stated at the quarter end (Jun 30, 2026), in US dollars; it is filing data, not a price. Weight is the share of the total reported value.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [PALO ALTO NETWORKS INC (PANW)](/companies/panw.md) | COM | $195.4m | 8.8% | 572,934 |  | Reduced −51,150 |
| [FORTINET INC (FTNT)](/companies/ftnt.md) | COM | $112.1m | 5.0% | 729,885 |  | Reduced −99,038 |
| [MEDPACE HOLDINGS INC (MEDP)](/companies/medp.md) | COM | $111.3m | 5.0% | 210,217 |  | Reduced −7,730 |
| [VARONIS SYSTEMS INC (VRNS)](/companies/vrns.md) | COM | $94.1m | 4.2% | 2,241,704 |  | Reduced −86,675 |
| [RBC BEARINGS INC (RBC)](/companies/rbc.md) | COM | $92.6m | 4.2% | 143,737 |  | Reduced −31,706 |
| [IDEXX LABORATORIES INC (IDXX)](/companies/idxx.md) | COM | $85.3m | 3.8% | 162,110 |  | Reduced −3,946 |
| [NCINO INC (NCNO)](/companies/ncno.md) | COM | $83.5m | 3.7% | 5,107,539 |  | Added +2,732,143 |
| [AEROVIRONMENT INC (AVAV)](/companies/avav.md) | COM | $69.7m | 3.1% | 422,518 |  | Reduced −13,849 |
| [BIO-TECHNE CORP (TECH)](/companies/tech.md) | COM | $68.8m | 3.1% | 973,789 |  | Reduced −47,339 |
| [SEI INVESTMENTS COMPANY (SEIC)](/companies/seic.md) | COM | $65.4m | 2.9% | 745,323 |  | Reduced −23,292 |
| [COMMVAULT SYSTEMS INC (CVLT)](/companies/cvlt.md) | COM | $62.5m | 2.8% | 440,931 |  | Reduced −99,914 |
| [MERCURY SYSTEMS INC (MRCY)](/companies/mrcy.md) | COM | $59.5m | 2.7% | 486,064 |  | New +486,064 |
| [NOVANTA INC (NOVT)](/companies/novt.md) | COM | $58.8m | 2.6% | 362,271 |  | Reduced −11,603 |
| [DYNATRACE INC (DT)](/companies/dt.md) | COM | $58.5m | 2.6% | 1,332,429 |  | Added +278,162 |
| COGNYTE SOFTWARE LTD | COM | $54.3m | 2.4% | 6,183,567 |  | Reduced −312,643 |
| [GLOBUS MEDICAL INC (GMED)](/companies/gmed.md) | COM | $51.6m | 2.3% | 653,072 |  | Reduced −9,977 |
| [KRATOS DEFENSE & SECURITY SOLUTIONS INC (KTOS)](/companies/ktos.md) | COM | $51.3m | 2.3% | 1,029,653 |  | Reduced −42,255 |
| [MANHATTAN ASSOCIATES INC (MANH)](/companies/manh.md) | COM | $50.8m | 2.3% | 364,696 |  | Added +6,889 |
| [PROTO LABS INC (PRLB)](/companies/prlb.md) | COM | $50.5m | 2.3% | 619,845 |  | Reduced −7,860 |
| [REPLIGEN CORP (RGEN)](/companies/rgen.md) | COM | $49.3m | 2.2% | 361,055 |  | Added +3,335 |
| [AAON INC (AAON)](/companies/aaon.md) | COM | $47.6m | 2.1% | 375,178 |  | Added +98,294 |
| [RESMED INC (RMD)](/companies/rmd.md) | COM | $44.5m | 2.0% | 228,458 |  | Reduced −36,941 |
| [GUIDEWIRE SOFTWARE INC (GWRE)](/companies/gwre.md) | COM | $40.5m | 1.8% | 328,983 |  | Added +4,787 |
| [DORMAN PRODUCTS INC (DORM)](/companies/dorm.md) | COM | $38.8m | 1.7% | 284,244 |  | Added +223,809 |
| [BADGER METER INC (BMI)](/companies/bmi.md) | COM | $38.3m | 1.7% | 258,243 |  | Added +72,402 |
| [VEEVA SYSTEMS INC (VEEV)](/companies/veev.md) | COM | $34.9m | 1.6% | 196,848 |  | Reduced −9,370 |
| [NEOGENOMICS INC (NEO)](/companies/neo.md) | COM | $32.6m | 1.5% | 2,237,707 |  | Reduced −13,171 |
| [TYLER TECHNOLOGIES INC (TYL)](/companies/tyl.md) | COM | $29.6m | 1.3% | 101,210 |  | Added +2,268 |
| [VSE CORP (VSEC)](/companies/vsec.md) | COM | $29.5m | 1.3% | 128,934 |  | Added +44,139 |
| [CERENCE INC (CRNC)](/companies/crnc.md) | COM | $27.3m | 1.2% | 2,407,398 |  | Reduced −111,891 |
| [AZENTA INC (AZTA)](/companies/azta.md) | COM | $27.1m | 1.2% | 1,061,490 |  | Reduced −234,534 |
| [STAAR SURGICAL COMPANY (STAA)](/companies/staa.md) | COM | $24.3m | 1.1% | 846,659 |  | Reduced −31,376 |
| [TRADEWEB MARKETS INC (TW)](/companies/tw.md) | COM | $23.7m | 1.1% | 238,244 |  | Reduced −11,003 |
| [IPG PHOTONICS CORP (IPGP)](/companies/ipgp.md) | COM | $23.2m | 1.0% | 197,882 |  | Reduced −11,036 |
| [ESCO TECHNOLOGIES INC (ESE)](/companies/ese.md) | COM | $22.9m | 1.0% | 65,312 |  | Added +26,898 |
| [COSTAR GROUP INC (CSGP)](/companies/csgp.md) | COM | $20.5m | 0.9% | 725,143 |  | Reduced −100,153 |
| [COGNEX CORP (CGNX)](/companies/cgnx.md) | COM | $18.2m | 0.8% | 251,103 |  | Reduced −20,430 |
| [MORNINGSTAR INC (MORN)](/companies/morn.md) | COM | $17.9m | 0.8% | 114,947 |  | Added +6,607 |
| [DEXCOM INC (DXCM)](/companies/dxcm.md) | COM | $15.8m | 0.7% | 235,152 |  | Reduced −16,323 |
| [JACK HENRY & ASSOCIATES INC (JKHY)](/companies/jkhy.md) | COM | $13.8m | 0.6% | 99,930 |  | Reduced −143,145 |
| [GENTEX CORP (GNTX)](/companies/gntx.md) | COM | $13.4m | 0.6% | 531,229 |  | Reduced −3,127 |
| [NICE LTD (NICE)](/companies/nice.md) | COM | $12.4m | 0.6% | 136,644 |  | Reduced −20,949 |
| [FACTSET RESEARCH SYSTEMS INC (FDS)](/companies/fds.md) | COM | $9.4m | 0.4% | 40,986 |  | Reduced −2,022 |
| [LIVE RAMP HOLDINGS INC (RAMP)](/companies/ramp.md) | COM | $9.3m | 0.4% | 246,042 |  | Reduced −1,617,547 |
| [SYNOPSYS INC (SNPS)](/companies/snps.md) | COM | $8.6m | 0.4% | 19,196 |  | Reduced −257 |
| [MONOLITHIC POWER SYSTEMS INC (MPWR)](/companies/mpwr.md) | COM | $8.2m | 0.4% | 5,897 |  | Reduced −423 |
| [O'REILLY AUTOMOTIVE INC (ORLY)](/companies/orly.md) | COM | $7.9m | 0.4% | 86,235 |  | Unchanged |
| [MERIT MEDICAL SYSTEMS INC (MMSI)](/companies/mmsi.md) | COM | $7.3m | 0.3% | 104,967 |  | Reduced −10,808 |
| [GRAHAM CORP (GHM)](/companies/ghm.md) | COM | $6.4m | 0.3% | 52,050 |  | Added +530 |
| [HAEMONETICS CORP (HAE)](/companies/hae.md) | COM | $5.0m | 0.2% | 66,915 |  | Unchanged |
| KORNIT DIGITAL LTD | COM | $4.6m | 0.2% | 282,976 |  | Unchanged |
| [INSULET CORP (PODD)](/companies/podd.md) | COM | $4.5m | 0.2% | 29,455 |  | Added +10,180 |
| [QUAKER CHEMICAL CORP (KWR)](/companies/kwr.md) | COM | $4.3m | 0.2% | 27,279 |  | Reduced −11,363 |
| [SPS COMMERCE INC (SPSC)](/companies/spsc.md) | COM | $4.2m | 0.2% | 73,958 |  | Reduced −12,118 |
| [ALARM.COM HOLDINGS INC (ALRM)](/companies/alrm.md) | COM | $3.2m | 0.1% | 68,544 |  | Reduced −1,260 |
| [BALCHEM CORP (BCPC)](/companies/bcpc.md) | COM | $2.7m | 0.1% | 16,067 |  | Reduced −4,035 |
| [FRANKLIN ELECTRIC CO INC (FELE)](/companies/fele.md) | COM | $2.4m | 0.1% | 22,000 |  | Unchanged |
| ISHARES TRUST | COM | $2.1m | <0.1% | 25,524 |  | Reduced −966 |
| [SPDR S&P 500 ETF TRUST (SPY)](/companies/spy.md) | COM | $1.8m | <0.1% | 2,425 |  | Unchanged |
| [MACOM TECHNOLOGY SOLUTIONS HOLDINGS INC (MTSI)](/companies/mtsi.md) | COM | $1.4m | <0.1% | 3,626 |  | Reduced −303 |
| [DESCARTES SYSTEMS GROUP INC (THE) (DSGX)](/companies/dsgx.md) | COM | $1.4m | <0.1% | 19,605 |  | Added +467 |
| JFROG LTD | COM | $1.2m | <0.1% | 13,479 |  | Added +500 |
| [NEOGEN CORP (NEOG)](/companies/neog.md) | COM | $1.2m | <0.1% | 133,457 |  | Reduced −200 |
| ISHARES TRUST | COM | $1.1m | <0.1% | 21,496 |  | New +21,496 |
| [QUALYS INC (QLYS)](/companies/qlys.md) | COM | $979.6k | <0.1% | 7,125 |  | Reduced −76,627 |
| [TRIMBLE INC (TRMB)](/companies/trmb.md) | COM | $972.4k | <0.1% | 19,000 |  | Unchanged |
| ISHARES TRUST | COM | $949.1k | <0.1% | 8,702 |  | New +8,702 |
| NOVANTA INC | CONV PR | $946.0k | <0.1% | 14,035 |  | Added +3,935 |
| [ACI WORLDWIDE INC (ACIW)](/companies/aciw.md) | COM | $925.8k | <0.1% | 18,410 |  | Unchanged |
| [ZEBRA TECHNOLOGIES CORP (ZBRA)](/companies/zbra.md) | COM | $868.8k | <0.1% | 3,300 |  | Unchanged |
| [APPLE INC (AAPL)](/companies/aapl.md) | COM | $810.2k | <0.1% | 2,800 |  | Unchanged |
| ISHARES TRUST | COM | $773.7k | <0.1% | 8,186 |  | New +8,186 |
| ISHARES TRUST | COM | $573.6k | <0.1% | 7,173 |  | New +7,173 |
| ICON PLC | COM | $490.4k | <0.1% | 2,823 |  | Reduced −447 |
| [ILLUMINA INC (ILMN)](/companies/ilmn.md) | COM | $390.3k | <0.1% | 2,220 |  | Unchanged |
| [MERCK & COMPANY INC (MRK)](/companies/mrk.md) | COM | $269.9k | <0.1% | 2,100 |  | Unchanged |
| VANGUARD SCOTTSDALE FUNDS | COM | $249.1k | <0.1% | 1,949 |  | New +1,949 |
| [SPDR S&P MIDCAP 400 ETF TRUST (MDY)](/companies/mdy.md) | COM | $248.3k | <0.1% | 353 |  | Unchanged |
| VANGUARD INDEX FUNDS | COM | $246.4k | <0.1% | 2,860 |  | New +2,860 |
| ISHARES TRUST | COM | $245.1k | <0.1% | 3,220 |  | Added +180 |

## Sold out

Held at the end of the quarter before and not reported this quarter.

| Issuer | Class | Reported value | Weight | Shares | Put or call | Change on the quarter before |
| --- | --- | ---: | ---: | ---: | --- | --- |
| [BLACKBAUD INC (BLKB)](/companies/blkb.md) | COM | $0 | 0.0% | 0 |  | Sold out −12,930 |
| HOLOGIC INC | COM | $0 | 0.0% | 0 |  | Sold out −16,280 |

Source: SEC EDGAR, Form 13F-HR, accession 0001104659-26-097334. Last ingested by Listed: Oct 22, 2026, 05:26 ET. No prices; not investment advice.