Flexible Solutions International Inc (FSI) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

12,646,750Shares Outstanding

265,752Shares held by institutions

$1,461,636Value of institutional holdings

8.60%Institutional ownership %

-1.30%Shares Changed QoQ

17No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

According to SEC filings for the period ending December 2025, Flexible Solutions International Inc (NYSE:FSI) is held by 28 institutional firms.

The collective stake of institutional investors in Flexible Solutions International moved to 9.9% in December 2025, a shift up from the 8.3% reported for September 2025.
In percentage terms, this reflects as a holdings change of 24.60% quarter on quarter, and an increase of 64.71% year over year.
A review of institutional activity for Flexible Solutions International shows 14 of 28 filers increasing their positions, while 2 reduced their stake, and 12 remained unchanged.
The total number of shares held by institutions in Flexible Solutions International increased to 1.37Mn as of December 2025, a net change of up by 269.74K shares quarter on quarter, and up 285.19K shares year over year.
As of December 31, 2025, RENAISSANCE TECHNOLOGIES LLC held Flexible Solutions International's largest shareholding position with over 333.19K shares, representing 2.42% of total outstanding shares.
Among the most significant buyers of Flexible Solutions International during December 2025 were Rothschild Wealth LLC (108.20K), SEI INVESTMENTS CO (42.02K), O'SHAUGHNESSY ASSET MANAGEMENT, LLC (38.21K), CITADEL ADVISORS LLC (34.83K), RITHOLTZ WEALTH MANAGEMENT (30.57K).
Leading sellers of Flexible Solutions International stock in December 2025 included RENAISSANCE TECHNOLOGIES LLC (17.05K), BlackRock, Inc. (2.28K).
The top 10 institutional holders of Flexible Solutions International for the quarter ending December 2025 included RENAISSANCE TECHNOLOGIES LLC (333.19K), VANGUARD GROUP INC (284.87K), Rothschild Wealth LLC (108.20K), PERRITT CAPITAL MANAGEMENT INC (108.20K), DIMENSIONAL FUND ADVISORS LP (86.83K), Informed Momentum Co LLC (69.17K), MARSHALL WACE, LLP (59.70K), O'SHAUGHNESSY ASSET MANAGEMENT, LLC (59.52K), SEI INVESTMENTS CO (42.02K), RITHOLTZ WEALTH MANAGEMENT (41.88K).

28 Institutional Holders

265,752 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
RENAISSANCE TECHNOLOGIES LLC	31 Dec, 2025	333,194	-17,051	-4.87%	$2,240,730.00
VANGUARD GROUP INC	31 Dec, 2025	284,869	0	0.00%	$1,915,744.00
Rothschild Wealth LLC	31 Dec, 2025	108,200	108,200	0.00%	$727,645.00
PERRITT CAPITAL MANAGEMENT INC	31 Dec, 2025	108,200	600	0.56%	$727,645.00
DIMENSIONAL FUND ADVISORS LP	31 Dec, 2025	86,830	6,349	7.89%	$583,933.00
Informed Momentum Co LLC	31 Dec, 2025	69,175	0	0.00%	$465,202.00
MARSHALL WACE, LLP	31 Dec, 2025	59,696	7,679	14.76%	$401,155.00
O'SHAUGHNESSY ASSET MANAGEMENT, LLC	31 Dec, 2025	59,524	38,213	179.31%	$400,299.00
SEI INVESTMENTS CO	31 Dec, 2025	42,024	42,024	0.00%	$282,611.00
RITHOLTZ WEALTH MANAGEMENT	31 Dec, 2025	41,882	30,573	270.34%	$281,657.00
Regal Investment Advisors LLC	31 Dec, 2025	34,960	6,500	22.84%	$235,107.00
CITADEL ADVISORS LLC	31 Dec, 2025	34,825	34,825	0.00%	$234,198.00
ESSEX INVESTMENT MANAGEMENT CO LLC	31 Dec, 2025	26,252	0	0.00%	$176,545.00
JAMES INVESTMENT RESEARCH, INC.	31 Dec, 2025	18,300	0	0.00%	$123,068.00
BlackRock, Inc.	31 Dec, 2025	18,194	-2,284	-11.15%	$122,355.00
Strait & Sound Wealth Management LLC	31 Dec, 2025	11,728	1,600	15.80%	$78,871.00
XTX Topco Ltd	31 Dec, 2025	11,611	11,611	0.00%	$78,084.00
Covestor Ltd	31 Dec, 2025	6,162	0	0.00%	$41.00
Founders Capital Management	31 Dec, 2025	5,000	0	0.00%	$33,625.00
Federation des caisses Desjardins du Quebec	31 Dec, 2025	2,525	0	0.00%	$16,539.00

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