AMERICAN CAPITAL MANAGEMENT INC

NEW YORK, NY · CIK 1320168 · 13F filing filed 2026-08-14

No investment adviser registration (Form ADV) found for this filer. It may be a parent company whose subsidiaries are the registered advisers, a bank or insurer, or a manager based outside the US.

$2.2bn reported value +19.8% vs Q1 2026

80positions

43.9%in top 10

7 new 18 added 43 reduced 2 sold out vs Q1 2026

Holdings, Q2 2026

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	PALO ALTO NETWORKS INC COM PANW	PANW	572,934	$195.4m8.76%	8.76%	Reduced -51.1k	-51,150 -8.2%
2	FORTINET INC COM FTNT	FTNT	729,885	$112.1m5.03%	5.03%	Reduced -99.0k	-99,038 -11.9%
3	MEDPACE HLDGS INC COM MEDP	MEDP	210,217	$111.3m4.99%	4.99%	Reduced -7.7k	-7,730 -3.5%
4	VARONIS SYS INC COM VRNS	VRNS	2,241,704	$94.1m4.22%	4.22%	Reduced -86.7k	-86,675 -3.7%
5	RBC BEARINGS INC COM RBC	RBC	143,737	$92.6m4.15%	4.15%	Reduced -31.7k	-31,706 -18.1%
6	IDEXX LABS INC COM IDXX	IDXX	162,110	$85.3m3.83%	3.83%	Reduced -3.9k	-3,946 -2.4%
7	NCINO INC COM NCNO	NCNO	5,107,539	$83.5m3.74%	3.74%	Added +2.7m	+2,732,143 115.0%
8	AEROVIRONMENT INC COM AVAV	AVAV	422,518	$69.7m3.13%	3.13%	Reduced -13.8k	-13,849 -3.2%
9	BIO-TECHNE CORP COM TECH	TECH	973,789	$68.8m3.08%	3.08%	Reduced -47.3k	-47,339 -4.6%
10	SEI INVTS CO COM SEIC	SEIC	745,323	$65.4m2.93%	2.93%	Reduced -23.3k	-23,292 -3.0%
11	COMMVAULT SYS INC COM CVLT	CVLT	440,931	$62.5m2.80%	2.80%	Reduced -99.9k	-99,914 -18.5%
12	MERCURY SYS INC COM MRCY	MRCY	486,064	$59.5m2.67%	2.67%	New
13	NOVANTA INC COM NOVT	NOVT	362,271	$58.8m2.64%	2.64%	Reduced -11.6k	-11,603 -3.1%
14	DYNATRACE INC COM NEW DT	DT	1,332,429	$58.5m2.62%	2.62%	Added +278.2k	+278,162 26.4%
15	COGNYTE SOFTWARE LTD ORD SHS CGNT	CGNT	6,183,567	$54.3m2.43%	2.43%	Reduced -312.6k	-312,643 -4.8%
16	GLOBUS MED INC CL A GMED	GMED	653,072	$51.6m2.31%	2.31%	Reduced -10.0k	-9,977 -1.5%
17	KRATOS DEFENSE & SEC SOLUTIO COM NEW KTOS	KTOS	1,029,653	$51.3m2.30%	2.30%	Reduced -42.3k	-42,255 -3.9%
18	MANHATTAN ASSOCIATES INC COM MANH	MANH	364,696	$50.8m2.28%	2.28%	Added +6.9k	+6,889 1.9%
19	PROTO LABS INC COM PRLB	PRLB	619,845	$50.5m2.27%	2.27%	Reduced -7.9k	-7,860 -1.2%
20	REPLIGEN CORP COM RGEN	RGEN	361,055	$49.3m2.21%	2.21%	Added +3.3k	+3,335 0.9%
21	AAON INC COM PAR $0.004 AAON	AAON	375,178	$47.6m2.13%	2.13%	Added +98.3k	+98,294 35.5%
22	RESMED INC COM RMD	RMD	228,458	$44.5m2.00%	2.00%	Reduced -36.9k	-36,941 -13.9%
23	GUIDEWIRE SOFTWARE INC COM GWRE	GWRE	328,983	$40.5m1.82%	1.82%	Added +4.8k	+4,787 1.5%
24	DORMAN PRODS INC COM DORM	DORM	284,244	$38.8m1.74%	1.74%	Added +223.8k	+223,809 370.3%
25	BADGER METER INC COM BMI	BMI	258,243	$38.3m1.72%	1.72%	Added +72.4k	+72,402 39.0%
26	VEEVA SYS INC CL A COM VEEV	VEEV	196,848	$34.9m1.57%	1.57%	Reduced -9.4k	-9,370 -4.5%
27	NEOGENOMICS INC COM NEW NEO	NEO	2,237,707	$32.6m1.46%	1.46%	Reduced -13.2k	-13,171 -0.6%
28	TYLER TECHNOLOGIES INC COM TYL	TYL	101,210	$29.6m1.33%	1.33%	Added +2.3k	+2,268 2.3%
29	VSE CORP COM VSEC	VSEC	128,934	$29.5m1.32%	1.32%	Added +44.1k	+44,139 52.0%
30	CERENCE INC COM CRNC	CRNC	2,407,398	$27.3m1.22%	1.22%	Reduced -111.9k	-111,891 -4.4%
31	AZENTA INC COM AZTA	AZTA	1,061,490	$27.1m1.21%	1.21%	Reduced -234.5k	-234,534 -18.1%
32	STAAR SURGICAL CO COM PAR $0.01 STAA	STAA	846,659	$24.3m1.09%	1.09%	Reduced -31.4k	-31,376 -3.6%
33	TRADEWEB MKTS INC CL A TW	TW	238,244	$23.7m1.06%	1.06%	Reduced -11.0k	-11,003 -4.4%
34	IPG PHOTONICS CORP COM IPGP	IPGP	197,882	$23.2m1.04%	1.04%	Reduced -11.0k	-11,036 -5.3%
35	ESCO TECHNOLOGIES INC COM ESE	ESE	65,312	$22.9m1.03%	1.03%	Added +26.9k	+26,898 70.0%
36	COSTAR GROUP INC COM CSGP	CSGP	725,143	$20.5m0.92%	0.92%	Reduced -100.2k	-100,153 -12.1%
37	COGNEX CORP COM CGNX	CGNX	251,103	$18.2m0.82%	0.82%	Reduced -20.4k	-20,430 -7.5%
38	MORNINGSTAR INC COM MORN	MORN	114,947	$17.9m0.80%	0.80%	Added +6.6k	+6,607 6.1%
39	DEXCOM INC COM DXCM	DXCM	235,152	$15.8m0.71%	0.71%	Reduced -16.3k	-16,323 -6.5%
40	HENRY JACK & ASSOC INC COM JKHY	JKHY	99,930	$13.8m0.62%	0.62%	Reduced -143.1k	-143,145 -58.9%
41	GENTEX CORP COM GNTX	GNTX	531,229	$13.4m0.60%	0.60%	Reduced -3.1k	-3,127 -0.6%
42	NICE LTD SPONSORED ADR NICE	NICE	136,644	$12.4m0.56%	0.56%	Reduced -20.9k	-20,949 -13.3%
43	FACTSET RESH SYS INC COM FDS	FDS	40,986	$9.4m0.42%	0.42%	Reduced -2.0k	-2,022 -4.7%
44	LIVERAMP HLDGS INC COM RAMP	RAMP	246,042	$9.3m0.42%	0.42%	Reduced -1.6m	-1,617,547 -86.8%
45	SYNOPSYS INC COM SNPS	SNPS	19,196	$8.6m0.38%	0.38%	Reduced -257	-257 -1.3%
46	MONOLITHIC PWR SYS INC COM MPWR	MPWR	5,897	$8.2m0.37%	0.37%	Reduced -423	-423 -6.7%
47	OREILLY AUTOMOTIVE INC COM ORLY	ORLY	86,235	$7.9m0.36%	0.36%	Unchanged
48	MERIT MED SYS INC COM MMSI	MMSI	104,967	$7.3m0.33%	0.33%	Reduced -10.8k	-10,808 -9.3%
49	GRAHAM CORP COM GHM	GHM	52,050	$6.4m0.29%	0.29%	Added +530	+530 1.0%
50	HAEMONETICS CORP MASS COM HAE	HAE	66,915	$5.0m0.23%	0.23%	Unchanged
51	KORNIT DIGITAL LTD SHS KRNT	KRNT	282,976	$4.6m0.21%	0.21%	Unchanged
52	INSULET CORP COM PODD	PODD	29,455	$4.5m0.20%	0.20%	Added +10.2k	+10,180 52.8%
53	QUAKER HOUGHTON COM KWR	KWR	27,279	$4.3m0.19%	0.19%	Reduced -11.4k	-11,363 -29.4%
54	SPS COMM INC COM SPSC	SPSC	73,958	$4.2m0.19%	0.19%	Reduced -12.1k	-12,118 -14.1%
55	ALARM COM HLDGS INC COM ALRM	ALRM	68,544	$3.2m0.14%	0.14%	Reduced -1.3k	-1,260 -1.8%
56	BALCHEM CORP COM BCPC	BCPC	16,067	$2.7m0.12%	0.12%	Reduced -4.0k	-4,035 -20.1%
57	FRANKLIN ELEC INC COM FELE	FELE	22,000	$2.4m0.11%	0.11%	Unchanged
58	ISHARES TR 1 3 YR TREAS BD SHY	SHY	25,524	$2.1m0.09%	0.09%	Reduced -966	-966 -3.6%
59	SPDR S&P 500 ETF TR TR UNIT SPY	SPY	2,425	$1.8m0.08%	0.08%	Unchanged
60	MACOM TECH SOLUTIONS HLDGS I COM MTSI	MTSI	3,626	$1.4m0.06%	0.06%	Reduced -303	-303 -7.7%
61	DESCARTES SYS GROUP INC COM DSGX	DSGX	19,605	$1.4m0.06%	0.06%	Added +467	+467 2.4%
62	JFROG LTD ORD SHS FROG	FROG	13,479	$1.2m0.05%	0.05%	Added +500	+500 3.9%
63	NEOGEN CORP COM NEOG	NEOG	133,457	$1.2m0.05%	0.05%	Reduced -200	-200 -0.1%
64	ISHARES TR ISHS 1-5YR INVS IGSB	IGSB	21,496	$1.1m0.05%	0.05%	New
65	QUALYS INC COM QLYS	QLYS	7,125	$979.6k0.04%	0.04%	Reduced -76.6k	-76,627 -91.5%
66	TRIMBLE INC COM TRMB	TRMB	19,000	$972.4k0.04%	0.04%	Unchanged
67	ISHARES TR IBOXX INV CP ETF LQD	LQD	8,702	$949.1k0.04%	0.04%	New
68	NOVANTA INC UNIT 11/01/2028 NOVT 6.5 11.01.28	NOVT 6.5 11.01.28	14,035	$946.0k0.04%	0.04%	Added +3.9k	+3,935 39.0%
69	ACI WORLDWIDE INC COM ACIW	ACIW	18,410	$925.8k0.04%	0.04%	Unchanged
70	ZEBRA TECHNOLOGIES CORPORATI CL A ZBRA	ZBRA	3,300	$868.8k0.04%	0.04%	Unchanged
71	APPLE INC COM AAPL	AAPL	2,800	$810.2k0.04%	0.04%	Unchanged
72	ISHARES TR MBS ETF MBB	MBB	8,186	$773.7k0.03%	0.03%	New
73	ISHARES TR IBOXX HI YD ETF HYG	HYG	7,173	$573.6k0.03%	0.03%	New
74	ICON PLC SHS ICLR	ICLR	2,823	$490.4k0.02%	0.02%	Reduced -447	-447 -13.7%
75	ILLUMINA INC COM ILMN	ILMN	2,220	$390.3k0.02%	0.02%	Unchanged
76	MERCK & CO INC COM MRK	MRK	2,100	$269.9k0.01%	0.01%	Unchanged
77	VANGUARD SCOTTSDALE FDS VNG RUS1000GRW VONG	VONG	1,949	$249.1k0.01%	0.01%	New
78	SPDR S&P MIDCAP 400 ETF TR UTSER1 S&PDCRP MDY	MDY	353	$248.3k0.01%	0.01%	Unchanged
79	VANGUARD INDEX FDS GROWTH ETF VUG	VUG	2,860	$246.4k0.01%	0.01%	New
80	ISHARES TR MSCI ACWI EX US ACWX	ACWX	3,220	$245.1k0.01%	0.01%	Added +180	+180 5.9%

Sold out since Q1 2026

Security	Ticker	Shares held before	Value then
HOLOGIC INC HOLX	HOLX	16,280	$1.2m16.3k shares
BLACKBAUD INC BLKB	BLKB	12,930	$499.2k12.9k shares

Stakes above 5%

Companies where this manager has reported owning more than 5% of a class of shares, on Schedule 13D (may seek influence) or 13G (passive): its latest filing for each, from 19 Dec 2024 on.

Company	Ticker	Stake	Change	Schedule	Last filed
COGNYTE SOFTWARE LTD CGNT · 13G · filed 2025-05-15	CGNT	9.3%≈ $58.5m		13G	2025-05-15
CERENCE INC CRNC · 13G · filed 2026-05-15	CRNC	5.6%≈ $15.7m	-1.3 pts	13G	2026-05-15