Company · Ownership research

Opera Ltd OPRA

CIK 0001737450 · CUSIP 68373M107

Insider trading Initial holdings Institutional holders

Quarter-end disclosures, not live holdings.

Several CUSIPs are reported for this company; this page shows CUSIP 68373M107 (OPRA), not CUSIP 68373M907 (OPRA), CUSIP 68373M957 (OPRA), and does not merge CUSIPs.

This page lists the top 20 of 140 rows by value; the complete set is available through the API.

Some filings reported values in thousands; those figures were scaled ×1,000 to dollars.

Top 20 institutions

Weight means this stock's share of the manager's own portfolio.

By reported value

#	Manager	Value	Manager weight	Change vs prior	Source
01	Tidal Investments LLC CIK 1600064 · View history	$27.41M 1,450,462 shares	0.18%	+156.18K(+12.10%)Added	SEC filing ↗ Aug 14, 2025	▾
02	Livforsakringsbolaget Skandia, Omsesidigt CIK 1547926 · Amended · View history	$20.19M 128,000 shares	0.88%	+60.30K(+89.10%)Added	SEC filing ↗ Jul 11, 2025	▾
03	ARROWSTREET CAPITAL, LIMITED PARTNERSHIP CIK 1164508 · View history	$17.61M 931,594 shares	0.01%	0(0.00%)Unchanged	SEC filing ↗ Aug 13, 2025	▾
04	Portolan Capital Management, LLC CIK 1350290 · View history	$16.56M 876,440 shares	1.04%	-653.25K(-42.70%)Reduced	SEC filing ↗ Aug 13, 2025	▾
05	MARSHALL WACE, LLP CIK 1318757 · View history	$15.87M 839,487 shares	0.02%	-279.31K(-25.00%)Reduced	SEC filing ↗ Aug 13, 2025	▾
06	G2 Investment Partners Management LLC CIK 1593404 · View history	$13.23M 700,000 shares	2.90%	-353.31K(-33.50%)Reduced	SEC filing ↗ Aug 14, 2025	▾
07	Driehaus Capital Management LLC CIK 938206 · View history	$12.67M 670,248 shares	0.10%	+27.28K(+4.20%)Added	SEC filing ↗ Aug 14, 2025	▾
08	LORD, ABBETT & CO. LLC CIK 728100 · View history	$11.54M 610,671 shares	0.04%	+204.51K(+50.40%)Added	SEC filing ↗ Aug 14, 2025	▾
09	CITADEL ADVISORS LLC CIK 1423053 · View history	$11.12M 588,226 shares	0.01%	+212.67K(+56.60%)Added	SEC filing ↗ Aug 14, 2025	▾
10	MILLENNIUM MANAGEMENT LLC CIK 1273087 · View history	$7.92M 419,035 shares	0.01%	+217.20K(+107.60%)Added	SEC filing ↗ Aug 14, 2025	▾
11	Whetstone Capital Advisors, LLC CIK 1607278 · View history	$7.00M 370,472 shares	1.98%	+370.47KNew	SEC filing ↗ Aug 14, 2025	▾
12	JPMORGAN CHASE & CO CIK 19617 · View history	$6.59M 348,819 shares	0.00%	-78.50K(-18.40%)Reduced	SEC filing ↗ Aug 12, 2025	▾
13	MORGAN STANLEY CIK 895421 · View history	$5.67M 299,943 shares	0.00%	-240.78K(-44.50%)Reduced	SEC filing ↗ Aug 14, 2025	▾
14	Rockefeller Capital Management L.P. CIK 1739439 · Amended · View history	$4.90M 259,035 shares	0.01%	-5.00K(-1.90%)Reduced	SEC filing ↗ Aug 14, 2025	▾
15	STATE OF WISCONSIN INVESTMENT BOARD CIK 854157 · View history	$4.77M 252,274 shares	0.01%	-13.57K(-5.10%)Reduced	SEC filing ↗ Aug 14, 2025	▾
16	Metavasi Capital LP CIK 1864835 · View history	$3.94M 208,235 shares	1.75%	+208.24KNew	SEC filing ↗ Aug 14, 2025	▾
17	Qube Research & Technologies Ltd CIK 1729829 · View history	$3.66M 193,507 shares	0.01%	+64.92K(+50.50%)Added	SEC filing ↗ Aug 14, 2025	▾
18	ACADIAN ASSET MANAGEMENT LLC CIK 916542 · View history	$3.60M 191,083 shares	0.01%	+186.66K(+4,220.20%)Added	SEC filing ↗ Aug 7, 2025	▾
19	Legal & General Group Plc CIK 764068 · View history	$3.10M 164,066 shares	0.00%	+154.50K(+1,614.90%)Added	SEC filing ↗ Aug 12, 2025	▾
20	VOLORIDGE INVESTMENT MANAGEMENT, LLC CIK 1556921 · View history	$3.00M 158,952 shares	0.01%	+56.82K(+55.60%)Added	SEC filing ↗ Aug 14, 2025	▾

Showing 20 / 140 institutions. The complete set is available through the API.

Coverage & totals by quarter

Reporting institutions

140

Cancelled or null records excluded

Disclosed shares

13,200,239

Not deduplicated across managers

Disclosed value

$267.35M

Not market cap or free float

Reporting institutions by quarter

Counts also change with data coverage and reporting entities; they do not measure net buying. Distinct managers with a live stock row in this CUSIP; totals may include overlapping filings and are not a share of the company.

Opera Ltd · Q2 2025

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Sources, coverage & how to read this data

Figures are as reported to the SEC and merged with later amendments where Akkru could match them. Preview limits apply to what is listed, not to the totals, which come from the complete reported data. Nothing is zero-filled: a missing quarter or month is shown as missing.