AMERICAN CAPITAL MANAGEMENT INC

CIK

1320168

Location

NEW YORK, NY

Portfolio Value

Mid $1,858,964,726

Diversification

Diversified

Filing Date

Global Rank

#1,258 / 8,622 ▼ 78 · as of Mar 2026

Top Industry

Software - Infrastructure 18.1%

3Y Alpha vs SPY

-14.9%

Period ended 4 months ago

Filed May 15, 2026 · 2mo

25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio

+15.3%

SPY

+67.9%

Annualised alpha

-14.0%

Max drawdown

−26.3%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. It tracks 100% of reported value on average across 13 quarters. Past performance does not predict future results.

Portfolio Concentration

72 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025

Top Position

5.6%

−1.8 pts

Top 5

25.5%

−4.2 pts

Top 10

42.7%

−3.3 pts

HHI

295

Diversified−41

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026

Sector	% Portfolio	Value	Positions
Technology	42.8%	$795,257,912	32
Healthcare	29.1%	$541,856,346	19
Industrials	18.0%	$335,326,028	9
Financial Services	6.3%	$117,286,803	4
Real Estate	1.8%	$33,292,440	1
Consumer Cyclical	1.4%	$25,943,026	3
Basic Materials	0.4%	$8,207,381	2
Unclassified	0.1%	$1,794,790	2

Last Quarter's Activity

Export CSV

Mar 31, 2026 vs Dec 31, 2025

Added To

Positions the filer increased

20 positions

Ticker	Company	Δ Shares	Shares	Value
VRNS	Varonis Systems Inc	+819,340	2,328,379	$49,990,297
NCNO	nCino, Inc.	+347,587	2,375,396	$35,583,432
AZTA	Azenta, Inc.	+274,588	1,296,024	$27,384,987
SEIC	Sei Investments Co	+193,796	768,615	$60,313,219
GMED	Globus Medical Inc	+176,837	663,049	$57,128,301
STAA	Staar Surgical Co	+138,499	878,035	$16,419,254
TECH	BIO-TECHNE Corp	+79,979	1,021,128	$53,364,149
VSEC	Vse Corp	+77,272	84,795	$15,636,198
TYL	Tyler Technologies Inc	+76,903	98,942	$33,875,761
DORM	Dorman Products, Inc.	+40,028	60,435	$6,306,996
MMSI	Merit Medical Systems Inc	+22,692	115,775	$7,980,370
RGEN	Repligen Corp	+22,605	357,720	$42,146,570
KWR	Quaker Chemical Corp	+12,496	38,642	$4,800,495
CVLT	Commvault Systems Inc	+7,039	540,845	$42,126,417
AAON	Aaon, Inc.	+5,147	276,884	$22,912,151
GHM	Graham Corp	+4,717	51,520	$4,065,958
DXCM	Dexcom Inc	+2,701	251,475	$15,792,630
DSGX	Descartes Systems Group Inc	+2,189	19,138	$1,369,515
FROG	JFrog Ltd	+2,034	12,979	$609,104
PODD	Insulet Corp	+385	19,275	$4,044,666
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
NEOG	Neogen Corp	−1,264,241	133,657	$1,241,673
KTOS	Kratos Defense & Security Solutions, Inc.	−562,585	1,071,908	$75,580,233
QLYS	Qualys, Inc.	−320,367	83,752	$7,357,613
SPSC	Sps Commerce Inc	−220,710	86,076	$4,791,850
CGNT	Cognyte Software Ltd.	−212,184	6,496,210	$52,619,301
AVAV	AeroVironment Inc	−211,343	436,367	$79,876,979
CRNC	Cerence Inc.	−135,842	2,519,289	$15,896,713
NICE	NICE Ltd.	−133,901	157,593	$17,376,204
FTNT	Fortinet, Inc.	−96,830	828,923	$67,739,587
CGNX	Cognex Corp	−92,840	271,533	$13,302,401
FDS	Factset Research Systems Inc	−91,943	43,008	$9,332,305
NEO	Neogenomics Inc	−73,488	2,250,878	$16,701,514
GNTX	Gentex Corp	−45,536	534,356	$11,675,678
RMD	Resmed Inc	−41,557	265,399	$59,576,767
RBC	RBC Bearings INC	−38,674	175,443	$95,286,602
IPGP	Ipg Photonics Corp	−26,636	208,918	$23,939,913
ICLR	Icon PLC	−20,462	3,270	$361,858
VEEV	Veeva Systems Inc	−16,207	206,218	$36,224,253
IDXX	Idexx Laboratories Inc /De	−15,689	166,056	$93,305,205
RAMP	LiveRamp Holdings, Inc.	−14,167	1,863,589	$49,422,380
TW	Tradeweb Markets Inc.	−9,468	249,247	$29,326,402
MANH	Manhattan Associates Inc	−9,053	357,807	$47,631,267
JKHY	Jack Henry & Associates Inc	−8,262	243,075	$38,415,573
NOVT	Novanta Inc	−7,992	373,874	$44,158,258
HAE	Haemonetics Corp	−7,500	66,915	$3,771,329
No positions match the current search.

New Positions

Positions the filer opened this quarter

6 positions

Ticker	Company	Shares	Value
PANW	Palo Alto Networks Inc	624,084	$100,053,146
DT	Dynatrace, Inc.	1,054,267	$38,986,793
BMI	Badger Meter Inc	185,841	$28,312,876
ESE	Esco Technologies Inc	38,414	$10,808,547
BCPC	Balchem Corp	20,102	$3,406,886
MTSI	MACOM Technology Solutions Holdings, Inc.	3,929	$872,513
No positions match the current search.

Sold Out

Positions the filer fully exited

No qualifying positions this quarter.

Portfolio Positions

Compact Export CSV View 13F filing

72 positions · $1,858,964,726 total · as of Mar 31, 2026

All sectors Basic Materials Consumer Cyclical Financial Services Healthcare Industrials Real Estate Technology

Showing 1–50 of 72 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
MEDP	Medpace Holdings, Inc. Healthcare	Reduced	217,947	-6,427	$104,655,969	−17.0%	5.63%
PANW	Palo Alto Networks Inc Technology	NEW	624,084	NEW	$100,053,146	NEW	5.38%
RBC	RBC Bearings INC Industrials	Reduced	175,443	-38,674	$95,286,602	−0.8%	5.13%
IDXX	Idexx Laboratories Inc /De Healthcare	Reduced	166,056	-15,689	$93,305,205	−24.1%	5.02%
AVAV	AeroVironment Inc Industrials	Reduced	436,367	-211,343	$79,876,979	−49.0%	4.30%
KTOS	Kratos Defense & Security Solutions, Inc. Industrials	Reduced	1,071,908	-562,585	$75,580,233	−39.1%	4.07%
FTNT	Fortinet, Inc. Technology	Reduced	828,923	-96,830	$67,739,587	−7.9%	3.64%
SEIC	Sei Investments Co Financial Services	Added	768,615	+193,796	$60,313,219	+27.9%	3.24%
RMD	Resmed Inc Healthcare	Reduced	265,399	-41,557	$59,576,767	−19.4%	3.20%
GMED	Globus Medical Inc Healthcare	Added	663,049	+176,837	$57,128,301	+34.6%	3.07%
TECH	BIO-TECHNE Corp Healthcare	Added	1,021,128	+79,979	$53,364,149	−3.6%	2.87%
CGNT	Cognyte Software Ltd. Technology	Reduced	6,496,210	-212,184	$52,619,301	−16.6%	2.83%
VRNS	Varonis Systems Inc Technology	Added	2,328,379	+819,340	$49,990,297	+1.0%	2.69%
RAMP	LiveRamp Holdings, Inc. Technology	Reduced	1,863,589	-14,167	$49,422,380	−10.4%	2.66%
GWRE	Guidewire Software, Inc. Technology	Reduced	324,196	-1,236	$48,486,753	−25.9%	2.61%
MANH	Manhattan Associates Inc Technology	Reduced	357,807	-9,053	$47,631,267	−25.1%	2.56%
NOVT	Novanta Inc Technology	Reduced	373,874	-7,992	$44,158,258	−2.8%	2.38%
RGEN	Repligen Corp Healthcare	Added	357,720	+22,605	$42,146,570	−23.2%	2.27%
CVLT	Commvault Systems Inc Technology	Added	540,845	+7,039	$42,126,417	−37.0%	2.27%
DT	Dynatrace, Inc. Technology	NEW	1,054,267	NEW	$38,986,793	NEW	2.10%
JKHY	Jack Henry & Associates Inc Technology	Reduced	243,075	-8,262	$38,415,573	−16.2%	2.07%
VEEV	Veeva Systems Inc Healthcare	Reduced	206,218	-16,207	$36,224,253	−27.0%	1.95%
PRLB	Proto Labs Inc Industrials	Reduced	627,705	-3,606	$35,791,739	+12.1%	1.93%
NCNO	nCino, Inc. Technology	Added	2,375,396	+347,587	$35,583,432	−31.6%	1.91%
TYL	Tyler Technologies Inc Technology	Added	98,942	+76,903	$33,875,761	+238.6%	1.82%
CSGP	Costar Group, Inc. Real Estate	Reduced	825,296	-44	$33,292,440	−40.0%	1.79%
TW	Tradeweb Markets Inc. Financial Services	Reduced	249,247	-9,468	$29,326,402	+5.4%	1.58%
BMI	Badger Meter Inc Technology	NEW	185,841	NEW	$28,312,876	NEW	1.52%
AZTA	Azenta, Inc. Healthcare	Added	1,296,024	+274,588	$27,384,987	−19.4%	1.47%
IPGP	Ipg Photonics Corp Technology	Reduced	208,918	-26,636	$23,939,913	+41.9%	1.29%
AAON	Aaon, Inc. Industrials	Added	276,884	+5,147	$22,912,151	+10.6%	1.23%
MORN	Morningstar, Inc. Financial Services	Reduced	108,340	-4,724	$18,314,877	−25.5%	0.99%
NICE	NICE Ltd. Technology	Reduced	157,593	-133,901	$17,376,204	−47.3%	0.93%
NEO	Neogenomics Inc Healthcare	Reduced	2,250,878	-73,488	$16,701,514	−38.9%	0.90%
STAA	Staar Surgical Co Healthcare	Added	878,035	+138,499	$16,419,254	−3.8%	0.88%
CRNC	Cerence Inc. Technology	Reduced	2,519,289	-135,842	$15,896,713	−44.0%	0.86%
DXCM	Dexcom Inc Healthcare	Added	251,475	+2,701	$15,792,630	−4.4%	0.85%
VSEC	Vse Corp Industrials	Added	84,795	+77,272	$15,636,198	+1103.0%	0.84%
CGNX	Cognex Corp Technology	Reduced	271,533	-92,840	$13,302,401	+1.5%	0.72%
GNTX	Gentex Corp Consumer Cyclical	Reduced	534,356	-45,536	$11,675,678	−13.5%	0.63%
ESE	Esco Technologies Inc Technology	NEW	38,414	NEW	$10,808,547	NEW	0.58%
FDS	Factset Research Systems Inc Financial Services	Reduced	43,008	-91,943	$9,332,305	−76.2%	0.50%
MMSI	Merit Medical Systems Inc Healthcare	Added	115,775	+22,692	$7,980,370	−2.7%	0.43%
ORLY	O Reilly Automotive Inc Consumer Cyclical	Held	86,235	0	$7,960,352	+1.2%	0.43%
SNPS	Synopsys Inc Technology	Reduced	19,453	-983	$7,712,725	−19.7%	0.41%
QLYS	Qualys, Inc. Technology	Reduced	83,752	-320,367	$7,357,613	−86.3%	0.40%
MPWR	Monolithic Power Systems, Inc. Technology	Reduced	6,320	-168	$6,909,972	+17.5%	0.37%
DORM	Dorman Products, Inc. Consumer Cyclical	Added	60,435	+40,028	$6,306,996	+150.9%	0.34%
KWR	Quaker Chemical Corp Basic Materials	Added	38,642	+12,496	$4,800,495	+33.7%	0.26%
SPSC	Sps Commerce Inc Technology	Reduced	86,076	-220,710	$4,791,850	−82.5%	0.26%