Terminal · Institutions

Every 13F-reported equity position this quarter, with its quarter-over-quarter change — each row traces back to the SEC filing.

AMERICAN CAPITAL MANAGEMENT INC 13F Holdings -- Portfolio & Top Positions (2026-03-31)

AMERICAN CAPITAL MANAGEMENT INC (CIK 1320168) reported $1.86B across 74 reported positions in its SEC 13F filing for 2026-03-31. Largest positions: MEDP ($104.7M, 5.62%), PANW ($100.1M, 5.37%), RBC ($95.3M, 5.12%), IDXX ($93.3M, 5.01%), AVAV ($79.9M, 4.29%). Source: SEC Form 13F.

RankTickerCompanyValue% PortfolioSharesAction
1MEDPMEDPACE HOLDINGS INC$104.7M5.62%217,947Trimmed
2PANWPALO ALTO NETWORKS INC$100.1M5.37%624,084New
3RBCRBC BEARINGS INC$95.3M5.12%175,443Trimmed
4IDXXIDEXX LABORATORIES INC$93.3M5.01%166,056Trimmed
5AVAVAEROVIRONMENT INC$79.9M4.29%436,367Trimmed
6KTOSKRATOS DEFENSE & SECURITY SOLUTIONS INC$75.6M4.06%1.1MTrimmed
7FTNTFORTINET INC$67.7M3.64%828,923Trimmed
8SEICSEI INVESTMENTS CO$60.3M3.24%768,615Added
9RMDRESMED INC$59.6M3.20%265,399Trimmed
10GMEDGLOBUS MEDICAL INC$57.1M3.07%663,049Added
11TECHBIO-TECHNE CORP$53.4M2.87%1.0MAdded
12CGNTCOGNYTE SOFTWARE LTD$52.6M2.83%6.5MTrimmed
13VRNSVARONIS SYSTEMS INC$50.0M2.68%2.3MAdded
14RAMPLIVE RAMP HOLDINGS INC$49.4M2.65%1.9MTrimmed
15GWREGUIDEWIRE SOFTWARE INC$48.5M2.60%324,196Trimmed
16MANHMANHATTAN ASSOCIATES INC$47.6M2.56%357,807Trimmed
17NOVTNOVANTA INC$44.2M2.37%373,874Trimmed
18CVLTCOMMVAULT SYSTEMS INC$42.1M2.26%540,845Added
19RGENREPLIGEN CORP$42.1M2.26%357,720Added
20DTDYNATRACE INC$39.0M2.09%1.1MNew
21JKHYJACK HENRY & ASSOCIATES INC$38.4M2.06%243,075Trimmed
22VEEVVEEVA SYSTEMS INC$36.2M1.95%206,218Trimmed
23PRLBPROTO LABS INC$35.8M1.92%627,705Trimmed
24NCNONCINO INC$35.6M1.91%2.4MAdded
25TYLTYLER TECHNOLOGIES INC$33.9M1.82%98,942Added

Source: SEC Form 13F filings · as of 2026-03-31