// company-profile
Oil States International, Inc
OISExchangeNYSESectorOil & Gas Field Machinery & EquipmentInc.DEFilings73Insiders11
// api This Oil States International, Inc insider-trading data is served live by the Form4API insider trading API. Get the same data via API.
// activity-summary
No insider transactions in the last 30 days.
// 90-day insight
Over the last 90 days, Oil States International, Inc insiders bought $13K (10 transactions) and sold $494K (1 transaction).
- Most active insider: Hollek Darrell E with 2 transactions totaling $494K.
- Largest single sale: $494K by Hollek Darrell E on Mar 31, 2026.
Activity skews bullish — buys outpace sales.
Institutional Ownership
Top 13F-HR holders of Oil States International, Inc as of 2026-03-31
Total reported AUM
$558.4M
QoQ change
+99.2%
Reporting period
2026-03-31
#1
DIMENSIONAL FUND ADVISORS LP
CIK 354204
$39.8M
3.4M shares
#2
BlackRock, Inc.
CIK 2012383
$29.7M
2.6M shares
#3
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
$28.1M
2.4M shares
Data source: SEC Form 13F-HR filings. Joined with insider activity above — see who's loading up institutionally while insiders are trading. Full 13F-HR API →
Insider Transactions
Sourced from SEC EDGAR Form 4 filings. Updated hourly.
| Date | Insider | Company | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| May 12, 2026 | Castillo-Rhodes Denise | OIS | Award | 16,760 | $0.00 | $0K |
| May 12, 2026 | Hollek Darrell E | OIS | Award | 16,760 | $0.00 | $0K |
| May 12, 2026 | POTTER ROBERT L | OIS | Award | 16,760 | $0.00 | $0K |
| May 12, 2026 | DICKERSON LAWRENCE R | OIS | Award | 16,760 | $0.00 | $0K |
| May 12, 2026 | Wright E Joseph | OIS | Award | 16,760 | $0.00 | $0K |
45 more transactions hidden
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