Save your place

Sign in to WhoBought

Please try again later.

Joel Greenblatt's Oil States International, Inc. (OIS) position

Yes: as of Q1 2026, Joel Greenblatt holds 58K shares of OIS worth an amount we cannot price (0.0% of the disclosed portfolio). Last quarter the position was opened. First disclosed Q1 2026.
View full portfolio →
Current value
an amount we cannot price
Shares held
58K
% of portfolio
0.0%
Quarter-end price
No quarter-end price available

Average buy price is hidden here because at least one covered purchase quarter has no usable local mean price.

OIS price vs Greenblatt's position

1Y 3Y 5Y MAX
Dates
$8.2$8.4$8.6← Earlier —1 purchase
Average closing price · filing quarter
—
Price range · filing quarter
—
Sign in to see who bought

Every quarterly change

Quarter Action Shares change Est. value change Δ Own Shares held Filing date
Q1 2026 New +58K – – 58K May 15, 2026
Data through Q1 2026 · filed May 15, 2026
1 grouped rows from 1 quarters

More Greenblatt positions

Apple Inc.(AAPL)
$727M
2.2% of portfolio

NVIDIA Corporation(NVDA)
$715M
2.2% of portfolio

Amazon.com, Inc.(AMZN)
$163M
0.5% of portfolio

Alphabet Inc.(GOOGL)
$155M
0.5% of portfolio

Snowflake Inc.(SNOW)
$150M
0.5% of portfolio

Common questions

Does Joel Greenblatt own OIS?

Yes. As of Q1 2026, Joel Greenblatt disclosed 58K shares of OIS, worth an amount we cannot price. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

When did Joel Greenblatt buy OIS?

Joel Greenblatt first disclosed a OIS position in Q1 2026; every quarterly buy and sell since is in the table above. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

Did Joel Greenblatt sell OIS?

The quarter-by-quarter table above shows each sale and reduction Joel Greenblatt disclosed in OIS. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How many shares of OIS does Joel Greenblatt own?

Joel Greenblatt disclosed 58K shares of OIS as of Q1 2026. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

What price did Joel Greenblatt pay for OIS?

Joel Greenblatt began building the OIS position before our 13F history starts, so an exact average buy price cannot be estimated without understating it. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.

How are the estimated trade prices calculated?

13F filings disclose quarter-end holdings, not trade dates or execution prices. These estimates use each covered quarter's average market price; the add average excludes the opening position and quarters without price data. All figures come from SEC 13F filings for Q1 2026, the latest disclosed quarter.