Energy Recovery ERII Institutional Ownership

NASDAQ ERII

$6.70 +0.03 (+0.45%)

At close: Oct 1, 2026 · 4:00 PM EDT

Institutions by Trading Activity

198 Institutions

Increased 121 61.1%

Unchanged 32 16.2%

Reduced 45 22.7%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

85.73%

▲+1.71 pp QoQ

Shares Held by Institutions

44.12Mn

of 51.46Mn outstanding

▲+7.82% QoQ

Shares Outstanding

51.46Mn

7.34Mn held outside 13F filers

Institutional Investors

198

filed 13F for Jun 2026

▲+2 vs prior quarter

Net Shares Added (QoQ)

+3.20Mn

accumulated since last quarter

Value of Holdings

$294.29Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Energy Recovery, Inc. (NASDAQ:ERII) has 198 institutional investors that have filed 13F reports for the period ending June 2026.

They owned 85.7% of outstanding stock in June 2026, up from 84.0% the prior quarter.
Their total shares held in ERII increased 7.82% quarter over quarter, and separately, investors owning Energy Recovery increased 7.61% from a year ago.
Among the 198 funds, 121 bought more Energy Recovery shares, 45 sold down, and 32 held their ground.
Altogether, these fund groups held 44.12Mn shares in ERII by June 2026, up by 3.2Mn shares quarter on quarter, and down 196.83K shares year over year.
As of June 30, 2026, the biggest holder of Energy Recovery is BlackRock, Inc. at 6.34Mn shares, representing 12.33% of shares outstanding.
The most significant purchases of ERII for the quarter ending June 2026 came from MACKENZIE FINANCIAL CORP (1.19Mn), MARSHALL WACE, LLP (570.95K), TUDOR INVESTMENT CORP ET AL (471.9K), Morgan Stanley (444.31K), LAZARD ASSET MANAGEMENT LLC (432.63K).
The largest sellers of Energy Recovery for the quarter ending June 2026 were Ameriprise Financial Inc (4.58Mn), FIL Ltd (272.2K), BROWN CAPITAL MANAGEMENT LLC (255.2K), FMR LLC (235.99K), SG Americas Securities, LLC (222.05K).
Business Quant data shows the 10 biggest positions in Energy Recovery as of June 2026 are held by BlackRock, Inc. (6.34Mn), Amundi (4.0Mn), VANGUARD CAPITAL MANAGEMENT LLC (2.18Mn), Legal & General Group Plc (2.06Mn), FIL Ltd (1.72Mn), GEODE CAPITAL MANAGEMENT, LLC (1.7Mn), State Street Corp (1.63Mn), VANGUARD PORTFOLIO MANAGEMENT LLC (1.26Mn), Morgan Stanley (1.24Mn), MACKENZIE FINANCIAL CORP (1.19Mn).

Form 13F Holdings

198 Institutional Holders

Report period 30 Jun, 2026

Total shares held 44.12Mn

Of outstanding 85.73%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	6,344,252	12.33%	▲253,326	+4.16%	$57.23Mn
2	Amundi	0001330387	4,003,535	7.78%	▲263,226	+7.04%	$36.09Mn
3	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	2,183,718	4.24%	▼46,552	-2.09%	$19.70Mn
4	Legal & General Group Plc	0000764068	2,059,764	4.00%	▲157,239	+8.26%	$18.58Mn
5	FIL Ltd	0000318989	1,715,722	3.33%	▼272,197	-13.69%	$15.48Mn
6	GEODE CAPITAL MANAGEMENT, LLC	0001214717	1,697,550	3.30%	▲402,442	+31.07%	$15.31Mn
7	State Street Corp	0000093751	1,625,893	3.16%	▼147,055	-8.29%	$14.67Mn
8	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	1,263,667	2.46%	▲2,006	+0.16%	$11.40Mn
9	Morgan Stanley	0000895421	1,237,003	2.40%	▲444,312	+56.05%	$11.16Mn
10	MACKENZIE FINANCIAL CORP	0000919859	1,187,686	2.31%	▲1,187,686	0.00%	$10.71Mn
11	Invesco Ltd.	0000914208	925,550	1.80%	▲99,254	+12.01%	$8.35Mn
12	DIMENSIONAL FUND ADVISORS LP	0000354204	878,724	1.71%	▲1,293	+0.15%	$7.93Mn
13	ArrowMark Colorado Holdings LLC	0001483859	847,000	1.65%	▲331,000	+64.15%	$7.64Mn
14	ROYCE & ASSOCIATES LP	0000906304	752,812	1.46%	▲269,794	+55.86%	$6.79Mn
15	AVENIR CORP	0001033475	693,886	1.35%	▼123,869	-15.15%	$6.26Mn
16	Ameriprise Financial Inc	0000820027	679,236	1.32%	▼4,580,580	-87.09%	$6.13Mn
17	MARSHALL WACE, LLP	0001318757	677,248	1.32%	▲570,951	+537.13%	$6.11Mn
18	Kopion Asset Management, LLC	0001728689	639,545	1.24%	▲132,580	+26.15%	$5.77Mn
19	Goldman Sachs Group Inc	0000886982	601,335	1.17%	▲132,800	+28.34%	$5.42Mn
20	683 Capital Management, LLC	0001404574	530,000	1.03%	▼20,000	-3.64%	$4.78Mn

Showing 1 to 20 of 198 holders