# FASTENAL CO (FAST) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 311900104
Page URL: https://superinvestorclub.com/stock/FAST
Last updated: 2026-07-08T12:26:15.460Z

## Summary

As of the most recent 13F filing period, FASTENAL CO (FAST) is held by 2 tracked superinvestors with an aggregate position value of $560.9M representing 081666643922442 shares.

## Top institutional holders (2)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [William Von Mueffling](https://superinvestorclub.com/manager/2284) | Cantillon Capital Management | 8166664 | $378.9M | 2.52% | 2026-03-31 |
| 2 | [Mairs & Power](https://superinvestorclub.com/manager/92) | Mairs & Power | 3922442 | $182.0M | 1.86% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2024-09-30: 1 holders, $195.1M aggregate, 02731930 shares
- 2024-12-31: 1 holders, $194.8M aggregate, 02709431 shares
- 2025-03-31: 2 holders, $579.6M aggregate, 047840482689855 shares
- 2025-06-30: 1 holders, $390.5M aggregate, 09298033 shares
- 2025-09-30: 3 holders, $688.3M aggregate, 091967054719036118830 shares
- 2025-12-31: 3 holders, $565.6M aggregate, 092668884667499158869 shares
- 2026-03-31: 2 holders, $560.9M aggregate, 081666643922442 shares

## Recent congressional trades (8)

- 2025-11-03: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2025-04-09: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-04-09: Josh Gottheimer (Democrat-NJ) sale $1,001 - $15,000
- 2025-03-19: Sheri Biggs (Republican-SC) sale $15,001 - $50,000
- 2025-02-25: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2025-01-17: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000
- 2024-11-12: Ro Khanna (Democrat-CA) sale $1,001 - $15,000
- 2024-10-14: Ro Khanna (Democrat-CA) purchase $1,001 - $15,000

## Recent insider transactions (0)


## Citation

When citing, use: "FASTENAL CO (FAST) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/FAST), aggregating SEC 13F, Form 4, and congressional disclosures."