# OIL STS INTL INC (OIS) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 678026105
Page URL: https://superinvestorclub.com/stock/OIS
Last updated: 2026-07-26T23:58:17.774Z

## Summary

As of the most recent 13F filing period, OIL STS INTL INC (OIS) is held by 1 tracked superinvestors with an aggregate position value of $23.8M representing 02043709 shares.

## Top institutional holders (1)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [First Eagle](https://superinvestorclub.com/manager/21222) | First Eagle Investment Management | 2043709 | $23.8M | 0.04% | 2026-03-31 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $5.7M aggregate, 0764694 shares
- 2023-09-30: 1 holders, $6.9M aggregate, 0829759 shares
- 2023-12-31: 1 holders, $5.8M aggregate, 0849896 shares
- 2024-03-31: 1 holders, $8.1M aggregate, 01312796 shares
- 2024-06-30: 1 holders, $8.7M aggregate, 01957796 shares
- 2024-09-30: 1 holders, $10.1M aggregate, 02203796 shares
- 2024-12-31: 1 holders, $12.4M aggregate, 02451296 shares
- 2025-03-31: 1 holders, $13.4M aggregate, 02598596 shares
- 2025-06-30: 1 holders, $13.9M aggregate, 02588396 shares
- 2025-09-30: 1 holders, $15.8M aggregate, 02605174 shares
- 2025-12-31: 1 holders, $17.5M aggregate, 02581674 shares
- 2026-03-31: 1 holders, $23.8M aggregate, 02043709 shares

## Recent congressional trades (0)


## Recent insider transactions (0)


## Citation

When citing, use: "OIL STS INTL INC (OIS) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/OIS), aggregating SEC 13F, Form 4, and congressional disclosures."