# CARLETON CORP

CARLETON CORP is a company headquartered in Minnetonka, MN, United States.

## Company overview

- **Legal name:** CARLETON CORP
- **Former names in filing history:** APERTUS TECHNOLOGIES INC (1995-06-23 to 1998-01-09)
- **Classification:** Company
- **Industry (SIC):** 3576 — Computer Communications Equipment
- **Headquarters:** Minnetonka, MN, United States
- **Incorporated in:** MN
- **Fiscal year end:** March 31
- **SEC CIK:** 0000351139

## About

CARLETON CORP is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000351139, and its reported industry is Computer Communications Equipment. The retained history contains 12 filings, including 10-Q filed on 1999-11-22. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 10-Q — filed 1999-11-22 — period 1999-10-03 — FORM 10-Q
- Form SC 13D — filed 1999-11-18 — SCHEDULE 13D
- Form 8-K — filed 1999-11-15 — period 1999-11-08 — FORM 8-K
- Form 10-Q — filed 1999-08-11 — period 1999-06-27 — FORM 10-Q
- Form 10-K/A — filed 1999-07-26 — period 1999-03-28 — AMENDMENT NO. 1 TO FORM 10-K
- Form 10-Q — filed 1999-02-08 — period 1998-12-27 — FORM 10-Q
- Form 10-Q — filed 1998-11-10 — period 1998-09-27 — FORM 10-Q
- Form 10-Q — filed 1998-08-07 — period 1998-06-28 — FORM 10-Q
- Form 10-K — filed 1998-06-25 — period 1998-03-29 — FORM 10-K
- Form DEF 14A — filed 1998-06-19 — period 1998-07-23 — DEFINITIVE PROXY STATEMENT
- Form 10-Q — filed 1998-02-11 — period 1997-12-28 — FORM 10-Q
- Form 10-Q — filed 1997-11-12 — period 1997-09-28 — FORM 10-Q

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Updated: 2026-10-23T22:12:03Z

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