AMERICAN CAPITAL MANAGEMENT INC
Top Portfolio Positions
72 positions ·
$1,867,707,477 total
· as of Mar 31, 2026
| Ticker | Company | Shares | Value (USD) | % of Portfolio | Open |
|---|---|---|---|---|---|
| MEDP |
Medpace Holdings, Inc.
Healthcare
|
217,947 | $104,655,969 | 5.60% | |
| PANW |
Palo Alto Networks Inc
Technology
|
624,084 | $100,053,146 | 5.36% | |
| RBC |
RBC Bearings INC
Industrials
|
175,443 | $95,286,602 | 5.10% | |
| IDXX |
Idexx Laboratories Inc /De
Healthcare
|
166,056 | $93,305,205 | 5.00% | |
| AVAV |
AeroVironment Inc
Industrials
|
436,367 | $79,876,979 | 4.28% | |
| KTOS |
Kratos Defense & Security Solutions, Inc.
Industrials
|
1,071,908 | $75,580,233 | 4.05% | |
| FTNT |
Fortinet, Inc.
Technology
|
828,923 | $67,739,587 | 3.63% | |
| SEIC |
Sei Investments Co
Financial Services
|
768,615 | $60,313,219 | 3.23% | |
| RMD |
Resmed Inc
Healthcare
|
265,399 | $59,576,767 | 3.19% | |
| GMED |
Globus Medical Inc
Healthcare
|
663,049 | $57,128,301 | 3.06% |
Portfolio Trend
25 quarters · across all stocks
Holdings in SEIC
Shares Held
Position Value (USD)
25 quarters on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $60,313,219 | 768,615 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $47,146,654 | 574,819 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $47,950,177 | 565,117 | Shares | Sole | 2025-11-14 | |
| 2025-06-30 | $41,674,911 | 463,776 | Shares | Sole | 2025-08-14 | |
| 2025-03-31 | $40,437,932 | 520,906 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $41,009,056 | 497,200 | Shares | Sole | 2025-02-11 | |
| 2024-09-30 | $21,060,467 | 304,386 | Shares | Sole | 2024-11-14 | |
| 2024-06-30 | $19,686,719 | 304,324 | Shares | Sole | 2024-08-14 | |
| 2024-03-31 | $21,973,287 | 305,609 | Shares | Sole | 2024-05-15 | |
| 2023-12-31 | $19,506,545 | 306,948 | Shares | Sole | 2024-02-14 | |
| 2023-09-30 | $19,107,184 | 317,237 | Shares | Sole | 2023-11-14 | |
| 2023-06-30 | $21,904,805 | 367,407 | Shares | Sole | 2023-08-14 | |
| 2023-03-31 | $27,412,446 | 476,324 | Shares | Sole | 2023-05-03 | |
| 2022-12-31 | $27,871,422 | 478,069 | Shares | Sole | 2023-02-14 | |
| 2022-09-30 | $27,640,116 | 563,509 | Shares | Sole | 2022-11-14 | |
| 2022-06-30 | $32,297,693 | 597,884 | Shares | Sole | 2022-08-15 | |
| 2022-03-31 | $42,527,647 | 706,322 | Shares | Sole | 2022-05-16 | |
| 2021-12-31 | $46,005,921 | 754,938 | Shares | Sole | 2022-02-14 | |
| 2021-09-30 | $44,876,401 | 756,769 | Shares | Sole | 2021-11-15 | |
| 2021-06-30 | $47,980,334 | 774,251 | Shares | Sole | 2021-08-13 | |
| 2021-03-31 | $47,250,971 | 775,496 | Shares | Sole | 2021-05-17 | |
| 2020-12-31 | $44,598,271 | 776,027 | Shares | Sole | 2021-02-16 | |
| 2020-09-30 | $39,086,150 | 770,626 | Shares | Sole | 2020-11-16 | |
| 2020-06-30 | $44,327,020 | 806,239 | Shares | Sole | 2020-08-13 | |
| 2020-03-31 | $37,171,862 | 802,155 | Shares | Sole | 2020-05-15 | |
| No 13F history on record for this holder in this stock. | ||||||