Q2 2026 13F · SEC CIK 1320168

American Capital Management Inc

Asset managerFiled 2026-08-14 for Q2 2026. Open the filing ↗ · All SEC filings ↗

Reported 13F value: $2.2B
Reported positions: 80
Top holdings a year, 3 yrs: +12.4%
Assets under management: $2.1B

American Capital Management Inc is an asset manager that reported 80 positions worth $2.2B in its Q2 2026 13F, filed 2026-08-14. Its largest holdings were Palo Alto Networks Inc (PANW, 8.8%), Fortinet Inc (FTNT, 5.0%), Medpace Hldgs Inc (MEDP, 5.0%). A portfolio copying its top holdings returned 12.4% a year over the last 3 years, against 20.4% for the S&P 500.

American Capital Management Inc holdings largest 50 of 80 positions.

Weights are shares of the filer's total reported 13F value, compared with Q1 2026. Share changes may reflect splits; weight changes also reflect price moves. A 13F shows long US-listed positions only, up to 135 days after the fact.

American Capital Management Inc 13F holdings
Stock	% of 13F value	Q1 2026	Shares	Share change	Reported value
PANWPalo Alto Networks Inc	8.8%	5.4%	572,934	-8.2%	$195.4M
FTNTFortinet Inc	5.0%	3.6%	729,885	-11.9%	$112.1M
MEDPMedpace Hldgs Inc	5.0%	5.6%	210,217	-3.5%	$111.3M
VRNSVaronis Sys Inc	4.2%	2.7%	2,241,704	-3.7%	$94.1M
ROLLRbc Bearings Incorporated	4.2%	5.1%	143,737	-18.1%	$92.6M
IDXXIdexx Labs Inc	3.8%	5.0%	162,110	-2.4%	$85.3M
NCNONcino Inc	3.7%	1.9%	5,107,539	+115.0%	$83.5M
AVAVAerovironment Inc	3.1%	4.3%	422,518	-3.2%	$69.7M
TECHBio-Techne Corp	3.1%	2.9%	973,789	-4.6%	$68.8M
SEICSei Invts Co	2.9%	3.2%	745,323	-3.0%	$65.4M
CVLTCommvault Sys Inc	2.8%	2.3%	440,931	-18.5%	$62.5M
MRCYMercury Sys Inc	2.7%	—	486,064	—	$59.5M
NOVTNovanta Inc	2.6%	2.4%	362,271	-3.1%	$58.8M
DTDynatrace Inc	2.6%	2.1%	1,332,429	+26.4%	$58.5M
CGNTCognyte Software Ltd	2.4%	2.8%	6,183,567	-4.8%	$54.3M
GMEDGlobus Med Inc	2.3%	3.1%	653,072	-1.5%	$51.6M
KTOSKratos Defense & Security Solutions Inc	2.3%	4.1%	1,029,653	-3.9%	$51.3M
MANHManhattan Associates Inc	2.3%	2.6%	364,696	+1.9%	$50.8M
PRLBProto Labs Inc	2.3%	1.9%	619,845	-1.3%	$50.5M
RGENRepligen Corp	2.2%	2.3%	361,055	+0.9%	$49.3M
AAONAaon Inc	2.1%	1.2%	375,178	+35.5%	$47.6M
RMDResmed Inc	2.0%	3.2%	228,458	-13.9%	$44.5M
GWREGuidewire Software Inc	1.8%	2.6%	328,983	+1.5%	$40.5M
DORMDorman Prods Inc	1.7%	0.3%	284,244	+370.3%	$38.8M
BMIBadger Meter Inc	1.7%	1.5%	258,243	+39.0%	$38.3M
VEEVVeeva Sys Inc	1.6%	1.9%	196,848	-4.5%	$34.9M
NEONeogenomics Inc	1.5%	0.9%	2,237,707	-0.6%	$32.6M
TYLTyler Technologies Inc	1.3%	1.8%	101,210	+2.3%	$29.6M
VSECVse Corp	1.3%	0.8%	128,934	+52.1%	$29.5M
CRNCCerence Inc.	1.2%	0.9%	2,407,398	-4.4%	$27.3M
BRKSAzenta Inc	1.2%	1.5%	1,061,490	-18.1%	$27.1M
STAAStaar Surgical Co	1.1%	0.9%	846,659	-3.6%	$24.3M
TWTradeweb Mkts Inc	1.1%	1.6%	238,244	-4.4%	$23.7M
IPGPIpg Photonics Corp	1.0%	1.3%	197,882	-5.3%	$23.2M
ESEEsco Technologies Inc	1.0%	0.6%	65,312	+70.0%	$22.9M
CSGPCostar Group Inc	0.9%	1.8%	725,143	-12.1%	$20.5M
CGNXCognex Corp	0.8%	0.7%	251,103	-7.5%	$18.2M
MORNMorningstar Inc	0.8%	1.0%	114,947	+6.1%	$17.9M
DXCMDexcom Inc	0.7%	0.8%	235,152	-6.5%	$15.8M
JKHYHenry Jack & Assoc Inc Com	0.6%	2.1%	99,930	-58.9%	$13.8M
GNTXGentex Corp	0.6%	0.6%	531,229	-0.6%	$13.4M
NICENice Ltd	0.6%	0.9%	136,644	-13.3%	$12.4M
FDSFactset Resh Sys Inc	0.4%	0.5%	40,986	-4.7%	$9.4M
RAMPLiveramp Holdings Inc	0.4%	2.7%	246,042	-86.8%	$9.3M
SNPSSynopsys Inc	0.4%	0.4%	19,196	-1.3%	$8.6M
MPWRMonolithic Pwr Sys Inc	0.4%	0.4%	5,897	-6.7%	$8.2M
ORLYOreilly Automotive Inc	0.4%	0.4%	86,235	+0.0%	$7.9M
MMSIMerit Med Sys Inc	0.3%	0.4%	104,967	-9.3%	$7.3M
GHMGraham Corp	0.3%	—	52,050	—	$6.4M
HAEHaemonetics Corp Mass	0.2%	—	66,915	—	$5.0M

What American Capital Management Inc bought and sold in Q2 2026, against Q1 2026.

New positions

Q1 2026's filing was too long to tell new positions apart.

Added to

DORM Dorman Prods Inc+370.3% shares
NCNO Ncino Inc+115.0% shares
ESE Esco Technologies Inc+70.0% shares
VSEC Vse Corp+52.1% shares
BMI Badger Meter Inc+39.0% shares
AAON Aaon Inc+35.5% shares
DT Dynatrace Inc+26.4% shares
MORN Morningstar Inc+6.1% shares

Reduced

RAMP Liveramp Holdings Inc-86.8% shares
JKHY Henry Jack & Assoc Inc Com-58.9% shares
CVLT Commvault Sys Inc-18.5% shares
BRKS Azenta Inc-18.1% shares
ROLL Rbc Bearings Incorporated-18.1% shares
RMD Resmed Inc-13.9% shares
NICE Nice Ltd-13.3% shares
CSGP Costar Group Inc-12.1% shares

Left the top 50

Share counts compared with the Q1 2026 13F; a split also changes share counts. The latest filing lists more than 50 positions, so a position that left the top 50 may still be held.

How the holdings did against the S&P 500.

1 year: +2.0% /yr; S&P 500 +20.1%
3 years: +12.4% /yr; S&P 500 +20.4%
5 years: +3.0% /yr; S&P 500 +11.6%

A portfolio of the filer's 20 largest 13F positions, weighted by value, bought the trading day after each 13F was filed and held until the next one was: what copying this filer could have earned. 13Fs show long US-listed positions only, so this is an estimate of the stock picks, not the fund's reported returns.

Reported 13F value by quarter.

13F value by quarter
Quarter	13F value	Positions
Q2 2026	$2.2B	80
Q1 2026	$1.9B	75
Q4 2025	$2.3B	68
Q3 2025	$2.5B	68
Q2 2025	$2.4B	63
Q1 2025	$2.5B	63
Q4 2024	$2.7B	63
Q3 2024	$3.1B	61
Q2 2024	$3.0B	62
Q1 2024	$3.1B	64
Q4 2023	$2.9B	64
Q3 2023	$2.6B	63

Questions about American Capital Management Inc's portfolio

What stocks does American Capital Management Inc own?

American Capital Management Inc's latest 13F, for Q2 2026 and filed Aug 14, 2026, lists 80 positions worth $2.2B. The largest are Palo Alto Networks Inc (PANW) at 8.8%, Fortinet Inc (FTNT) at 5.0%, Medpace Hldgs Inc (MEDP) at 5.0%, Varonis Sys Inc (VRNS) at 4.2% and Rbc Bearings Incorporated (ROLL) at 4.2%.

What did American Capital Management Inc buy last quarter?

In Q2 2026, American Capital Management Inc added Dorman Prods Inc (DORM) (+370.3% shares), Ncino Inc (NCNO) (+115.0% shares) and Esco Technologies Inc (ESE) (+70.0% shares), compared with its Q1 2026 filing.

What did American Capital Management Inc sell last quarter?

In Q2 2026, American Capital Management Inc cut from its top 50 Qualys Inc (QLYS), cut from its top 50 Quaker Houghton (KWR), cut from its top 50 Sps Comm Inc (SPSC), Liveramp Holdings Inc (RAMP) (-86.8% shares), Henry Jack & Assoc Inc Com (JKHY) (-58.9% shares) and Commvault Sys Inc (CVLT) (-18.5% shares), compared with its Q1 2026 filing.

How has American Capital Management Inc's portfolio performed?

A portfolio copying American Capital Management Inc's 20 largest 13F holdings each quarter, from the day each filing was public, returned +12.4% a year over the last 3 years, against +20.4% for the S&P 500. Over 1 year: +2.0% against +20.1%. Over 5 years: +3.0% a year against +11.6%.

When is American Capital Management Inc's next 13F filing due?

13F filings are due 45 days after each quarter ends. American Capital Management Inc's filing for the quarter ending Sep 30, 2026 is due by Nov 14, 2026; this page updates the day after it is published.

How much money does American Capital Management Inc manage?

American Capital Management Inc reported $2.1B of regulatory assets under management on its latest SEC Form ADV. Its 13F, which covers only US-listed stocks and options, totals $2.2B.