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Of the 13 tracked institutions holding OIS, 6 have a 3-year clone track record — 6 of them beat the S&P. Average holder's clone alpha: +5.6pt. It's a gauge of who owns the name, not just how many.
Among the 13 tracked institutional investors we monitor, OIS (OIL STS INTL INC) is held with a combined value of $130.89M across 17,065,367 shares. The largest holder is BlackRock, Inc. with a position worth $54.61M. 8 funds increased their holdings. 4 funds reduced their position.
Total Institutional Value
$130.89M
Total Shares Held
17,065,367
Institutional Holders
13
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $54.61M | 0.00% | +8.1% |
| 2 | VANGUARD GROUP INC | $30.33M | 0.00% | -0.4% |
| 3 | STATE STREET CORP | $15.87M | 0.00% | +14.3% |
| 4 | AQR CAPITAL MANAGEMENT LLC | $13.91M | 0.00% | -4.8% |
| 5 | MILLENNIUM MANAGEMENT LLC | $5.35M | 0.00% | -5.2% |
| 6 | FMR LLC | $4.47M | 0.00% | +109.5% |
| 7 | Fisher Asset Management, LLC | $1.59M | 0.00% | - |
| 8 | TWO SIGMA ADVISERS, LP | $1.38M | 0.00% | +19.2% |
| 9 | PRICE T ROWE ASSOCIATES INC /MD/ | $1.21M | 0.00% | +15.8% |
| 10 | Point72 Asset Management, L.P. | $951.28K | 0.00% | +68.8% |
SEC Schedule 13D (activist) and 13G (passive) filings for OIS. Filed when an investor acquires 5%+ ownership.
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of OIS with a position worth $54.61M, representing 0.00% of their portfolio. In total, 13 institutional investors hold OIS with a combined value of $130.89M.
Institutional investors hold $130.89M worth of OIS stock across 13 positions. The largest institutional holder is BlackRock, Inc. with $54.61M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For OIS, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their OIS positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$8.49
2026-10-21
YTD
+20.1%
31% of 52-week range
