AMERICAN CAPITAL MANAGEMENT INC

Adviser

CIK

1320168

Location

NEW YORK, NY

Portfolio Value

Mid $2,230,305,876

Diversification

Diversified

Filing Date

Global Rank

#1,493 / 8,818 ▲ 23

Top Industry

Software - Infrastructure 21.4%

Period ended 4 months ago

Filed Aug 14, 2026 · 2mo

26 quarters · since Mar 2020

Regulatory profile

From Form ADV, the SEC filer profile, 13D/13G type codes and N-CEN, never from the name.

Holder type

Adviser

Schedule 13G, May 15, 2026

Portfolio style

Measured from the filed 13F common-share book for Jun 30, 2026, never from the firm's own description.

Style

Diversified active

Top 10 weight 43.9%, 31.5 effective positions, active share 95.7% against the S&P MidCap 400 as of 2026-06-30; it meets none of the index-like, systematic-like or concentrated tests

Turnover

Medium turnover

31.6% over the last four quarters (30% to under 100%)

Horizon

Long horizon

Value-weighted holding period 17.4 quarters (12+), a floor since 52.2% of the book was already held when coverage starts

Closest benchmark: the S&P MidCap 400 as of 2026-06-30, active share 95.7%; sector active share 43.0% against the combined 13F book's sector weights.

Over time 26 measured quarters

How the bands are measured

Style bands measure the filed 13F common-share book each closed quarter, tested in this order. Unknown: under $10,000,000 of valued equity or 5 stocks. Index-like (100+ stocks): active share of 20% or less against the closest benchmark, which is the S&P 500, S&P MidCap 400, S&P SmallCap 600, Russell 1000, Russell 2000, Nasdaq-100 or Dow Jones Industrial Average (weighted by an index-tracking fund's reported holdings or the index's constituents nearest the quarter end, over the names resolved to companies, and only when those are 90%+ of its weight) or every 13F filer's combined book, or index series holding 80%+ of the registered fund assets it advises (N-CEN) and equal to 50%+ of its book. Systematic-like: 500+ stocks, 100%+ annual turnover and a top 10 weight of 25% or less. Concentrated: a top 10 weight of 60%+ or 12 or fewer effective positions. Diversified active: none of these. Turnover is the smaller of buys and sells over average equity value, summed over four quarters: low under 30%, high 100%+. Horizon is the value-weighted number of quarters each position has been held: short under 4, long 12+.

Clone Performance

Build a hypothetical price-return history from this filer's public 13F holdings.

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Portfolio Concentration

80 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026

Top Position

8.8%

+3.1 pts

Top 5

27.1%

+1.7 pts

Top 10

43.9%

+1.2 pts

HHI

318

Diversified+23

Portfolio Trend

26 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026

Sector	% Portfolio	Value	Positions
Technology	46.6%	$1,038,889,932	32
Healthcare	25.3%	$564,783,686	18
Industrials	18.6%	$414,098,879	10
Financial Services	5.2%	$116,479,765	4
Consumer Cyclical	2.7%	$60,150,630	3
Real Estate	0.9%	$20,536,049	1
Unclassified	0.4%	$8,318,602	10
Basic Materials	0.3%	$7,048,333	2

Last Quarter's Activity

Export CSV

Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased

18 positions

Ticker	Company	Δ Shares	Shares	Value
NCNO	nCino, Inc.	+2,732,143	5,107,539	$83,508,262
DT	Dynatrace, Inc.	+278,162	1,332,429	$58,506,957
DORM	Dorman Products, Inc.	+223,809	284,244	$38,785,093
AAON	Aaon, Inc.	+98,294	375,178	$47,595,081
BMI	Badger Meter Inc	+72,402	258,243	$38,318,096
VSEC	Vse Corp	+44,139	128,934	$29,461,419
ESE	Esco Technologies Inc	+26,898	65,312	$22,861,812
PODD	Insulet Corp	+10,180	29,455	$4,484,523
MANH	Manhattan Associates Inc	+6,889	364,696	$50,783,918
MORN	Morningstar, Inc.	+6,607	114,947	$17,934,030
GWRE	Guidewire Software, Inc.	+4,787	328,983	$40,481,358
NOVTU	Novanta Inc	+3,935	14,035	$945,959
RGEN	Repligen Corp	+3,335	361,055	$49,262,344
TYL	Tyler Technologies Inc	+2,268	101,210	$29,599,876
GHM	Graham Corp	+530	52,050	$6,443,269
FROG	JFrog Ltd	+500	13,479	$1,224,971
DSGX	Descartes Systems Group Inc	+467	19,605	$1,357,450
ACWX	iShares MSCI ACWI ex U.S. ETF	+180	3,220	$245,074
No positions match the current search.

Trimmed

Positions the filer reduced

25 positions

Ticker	Company	Δ Shares	Shares	Value
RAMP	LiveRamp Holdings, Inc.	−1,617,547	246,042	$9,261,020
CGNT	Cognyte Software Ltd.	−312,643	6,183,567	$54,291,718
AZTA	Azenta, Inc.	−234,534	1,061,490	$27,089,224
JKHY	Jack Henry & Associates Inc	−143,145	99,930	$13,764,358
CRNC	Cerence Inc.	−111,891	2,407,398	$27,251,745
CSGP	Costar Group, Inc.	−100,153	725,143	$20,536,049
CVLT	Commvault Systems Inc	−99,914	440,931	$62,493,150
FTNT	Fortinet, Inc.	−99,038	729,885	$112,124,933
VRNS	Varonis Systems Inc	−86,675	2,241,704	$94,061,899
QLYS	Qualys, Inc.	−76,627	7,125	$979,616
PANW	Palo Alto Networks Inc	−51,150	572,934	$195,381,952
TECH	BIO-TECHNE Corp	−47,339	973,789	$68,798,192
KTOS	Kratos Defense & Security Solutions, Inc.	−42,255	1,029,653	$51,338,498
RMD	Resmed Inc	−36,941	228,458	$44,521,895
RBC	RBC Bearings INC	−31,706	143,737	$92,575,252
STAA	Staar Surgical Co	−31,376	846,659	$24,290,646
SEIC	Sei Investments Co	−23,292	745,323	$65,372,280
NICE	NICE Ltd.	−20,949	136,644	$12,414,107
CGNX	Cognex Corp	−20,430	251,103	$18,184,879
DXCM	Dexcom Inc	−16,323	235,152	$15,837,487
AVAV	AeroVironment Inc	−13,849	422,518	$69,745,046
NEO	Neogenomics Inc	−13,171	2,237,707	$32,648,145
SPSC	Sps Commerce Inc	−12,118	73,958	$4,228,178
NOVT	Novanta Inc	−11,603	362,271	$58,774,847
KWR	Quaker Chemical Corp	−11,363	27,279	$4,333,814
No positions match the current search.

New Positions

Positions the filer opened this quarter

7 positions

Ticker	Company	Shares	Value
MRCY	Mercury Systems Inc	486,064	$59,460,209
IGSB	iShares 1-5 Year Investment Grade Corporate Bond ETF	21,496	$1,126,605
LQD	iShares iBoxx $ Investment Grade Corporate Bond ETF	8,702	$949,127
MBB	iShares MBS ETF	8,186	$773,740
HYG	iShares iBoxx $ High Yield Corporate Bond ETF	7,173	$573,624
VONG	VANGUARD RUSSELL 1000 GROWTH INDEX FUND	1,949	$249,101
VUG	VANGUARD GROWTH INDEX FUND	2,860	$246,360
No positions match the current search.

Sold Out

Positions the filer fully exited

2 positions

Ticker	Company	Shares	Value
—		16,280	$1,230,605
BLKB	Blackbaud Inc	12,930	$499,227
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

80 tracked positions · $2,230,305,876 total · filing declares 80 positions · $2,230,305,912 · as of Jun 30, 2026

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

Showing 1–50 of 80 positions by value · page 1 of 2

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	Held (qtrs)	Est. cost/share	% of Portfolio
PANW	Palo Alto Networks Inc Technology	Reduced	572,934	-51,150	$195,381,952	+95.3%	2	$168.00	8.76%
FTNT	Fortinet, Inc. Technology	Reduced	729,885	-99,038	$112,124,933	+65.5%	26+	before history	5.03%
MEDP	Medpace Holdings, Inc. Healthcare	Reduced	210,217	-7,730	$111,328,821	+6.4%	26+	before history	4.99%
VRNS	Varonis Systems Inc Technology	Reduced	2,241,704	-86,675	$94,061,899	+88.2%	15	$40.12	4.22%
RBC	RBC Bearings INC Industrials	Reduced	143,737	-31,706	$92,575,252	−2.8%	26+	before history	4.15%
IDXX	Idexx Laboratories Inc Healthcare	Reduced	162,110	-3,946	$85,341,188	−8.5%	26+	before history	3.83%
NCNO	nCino, Inc. Technology	Added	5,107,539	+2,732,143	$83,508,262	+134.7%	9	$22.02	3.74%
AVAV	AeroVironment Inc Industrials	Reduced	422,518	-13,849	$69,745,046	−12.7%	26+	before history	3.13%
TECH	BIO-TECHNE Corp Healthcare	Reduced	973,789	-47,339	$68,798,192	+28.9%	26+	before history	3.08%
SEIC	Sei Investments Co Financial Services	Reduced	745,323	-23,292	$65,372,280	+8.4%	26+	before history	2.93%
CVLT	Commvault Systems Inc Technology	Reduced	440,931	-99,914	$62,493,150	+48.3%	26+	before history	2.80%
MRCY	Mercury Systems Inc Industrials	NEW	486,064	NEW	$59,460,209	NEW	1	$95.27	2.67%
NOVT	Novanta Inc Technology	Reduced	362,271	-11,603	$58,774,847	+33.1%	4	$116.84	2.64%
DT	Dynatrace, Inc. Technology	Added	1,332,429	+278,162	$58,506,957	+50.1%	2	$38.37	2.62%
CGNT	Cognyte Software Ltd. Technology	Reduced	6,183,567	-312,643	$54,291,718	+3.2%	22	$12.73	2.43%
GMED	Globus Medical Inc Healthcare	Reduced	653,072	-9,977	$51,599,218	−9.7%	7	$78.78	2.31%
KTOS	Kratos Defense & Security Solutions, Inc. Industrials	Reduced	1,029,653	-42,255	$51,338,498	−32.1%	26+	before history	2.30%
MANH	Manhattan Associates Inc Technology	Added	364,696	+6,889	$50,783,918	+6.6%	26+	before history	2.28%
PRLB	Proto Labs Inc Industrials	Reduced	619,845	-7,860	$50,523,565	+41.2%	6	$48.23	2.27%
RGEN	Repligen Corp Healthcare	Added	361,055	+3,335	$49,262,344	+16.9%	26+	before history	2.21%
AAON	Aaon, Inc. Industrials	Added	375,178	+98,294	$47,595,081	+107.7%	4	$92.01	2.13%
RMD	Resmed Inc Healthcare	Reduced	228,458	-36,941	$44,521,895	−25.3%	26+	before history	2.00%
GWRE	Guidewire Software, Inc. Technology	Added	328,983	+4,787	$40,481,358	−16.5%	26+	before history	1.82%
DORM	Dorman Products, Inc. Consumer Cyclical	Added	284,244	+223,809	$38,785,093	+515.0%	26+	before history	1.74%
BMI	Badger Meter Inc Technology	Added	258,243	+72,402	$38,318,096	+35.3%	2	$149.65	1.72%
VEEV	Veeva Systems Inc Healthcare	Reduced	196,848	-9,370	$34,934,614	−3.6%	26+	before history	1.57%
NEO	Neogenomics Inc Healthcare	Reduced	2,237,707	-13,171	$32,648,145	+95.5%	6	$7.64	1.46%
TYL	Tyler Technologies Inc Technology	Added	101,210	+2,268	$29,599,876	−12.6%	21	$376.79	1.33%
VSEC	Vse Corp Industrials	Added	128,934	+44,139	$29,461,419	+88.4%	5	$195.77	1.32%
CRNC	Cerence Inc. Technology	Reduced	2,407,398	-111,891	$27,251,745	+71.4%	19	$15.38	1.22%
AZTA	Azenta, Inc. Healthcare	Reduced	1,061,490	-234,534	$27,089,224	−1.1%	21	$51.27	1.21%
STAA	Staar Surgical Co Healthcare	Reduced	846,659	-31,376	$24,290,646	+47.9%	17	$33.71	1.09%
TW	Tradeweb Markets Inc. Financial Services	Reduced	238,244	-11,003	$23,743,397	−19.0%	25	$78.40	1.06%
IPGP	Ipg Photonics Corp Technology	Reduced	197,882	-11,036	$23,215,516	−3.0%	4	$79.91	1.04%
ESE	Esco Technologies Inc Technology	Added	65,312	+26,898	$22,861,812	+111.5%	2	$277.13	1.03%
CSGP	Costar Group, Inc. Real Estate	Reduced	725,143	-100,153	$20,536,049	−38.3%	26+	before history	0.92%
CGNX	Cognex Corp Technology	Reduced	251,103	-20,430	$18,184,879	+36.7%	26+	before history	0.82%
MORN	Morningstar, Inc. Financial Services	Added	114,947	+6,607	$17,934,030	−2.1%	26+	before history	0.80%
DXCM	Dexcom Inc Healthcare	Reduced	235,152	-16,323	$15,837,487	+0.3%	26+	before history	0.71%
JKHY	Jack Henry & Associates Inc Technology	Reduced	99,930	-143,145	$13,764,358	−64.2%	26+	before history	0.62%
GNTX	Gentex Corp Consumer Cyclical	Reduced	531,229	-3,127	$13,424,156	+15.0%	26+	before history	0.60%
NICE	NICE Ltd. Technology	Reduced	136,644	-20,949	$12,414,107	−28.6%	26+	before history	0.56%
FDS	Factset Research Systems Inc Financial Services	Reduced	40,986	-2,022	$9,430,058	+1.0%	26+	before history	0.42%
RAMP	LiveRamp Holdings, Inc. Technology	Reduced	246,042	-1,617,547	$9,261,020	−81.3%	26+	before history	0.42%
SNPS	Synopsys Inc Technology	Reduced	19,196	-257	$8,562,759	+11.0%	4	$565.30	0.38%
MPWR	Monolithic Power Systems, Inc. Technology	Reduced	5,897	-423	$8,151,776	+18.0%	26+	before history	0.37%
ORLY	O Reilly Automotive Inc Consumer Cyclical	Held	86,235	0	$7,941,381	−0.2%	26+	before history	0.36%
MMSI	Merit Medical Systems Inc Healthcare	Reduced	104,967	-10,808	$7,278,411	−8.8%	26+	before history	0.33%
GHM	Graham Corp Industrials	Added	52,050	+530	$6,443,269	+58.5%	26+	before history	0.29%
HAE	Haemonetics Corp Healthcare	Held	66,915	0	$5,018,625	+33.1%	26+	before history	0.23%

Showing the top 50 of 80 positions. Create a free account to see every position, past quarters, search, filters and CSV export.

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.