ESSEX INVESTMENT MANAGEMENT CO LLC
Position in OII — Oceaneering International Inc
CIK 201772
BOSTON, MA
Position in OII
as of Mar 31, 2026
· filed May 11, 2026
Position Value
$5,617,525
+$1,882,446 QoQ
Shares Held
158,374
+1.9% QoQ
Ownership
0.159%
of shares outstanding
% of Portfolio
0.90%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Sep 2023
5 quarters on record
Voting authority
Sole 49.74743329081794.ToString("F0")%
Shared 0.ToString("F0")%
None 50.25256670918207.ToString("F0")%
Common Shares in OII Over Time
Shares Held
Position Value (USD)
Position in Oil & Gas Equipment & Services
Energy · as of Mar 31, 2026ESSEX INVESTMENT MANAGEMENT CO LLC holds $9,148,634 across 4 Oil & Gas Equipment & Services names. OII ranks #1 (61.4% of the industry book) .
All Filings in OII
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5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $5,617,525 | 158,374 | Shares | Sole | 2026-05-11 | |
| 2025-12-31 | $3,735,079 | 155,434 | Shares | Sole | 2026-02-13 | |
| 2025-09-30 | $3,946,487 | 159,261 | Shares | Sole | 2025-11-06 | |
| 2025-06-30 | $2,078,961 | 100,336 | Shares | Sole | 2025-08-12 | |
| 2023-09-30 | $1,304,004 | 50,700 | Shares | Sole | 2023-11-09 | |
| No filing history on record for this holder in this stock. | ||||||