Vault-13

FLEXIBLE SOLUTIONS INTL INC FSI

COM · Common Stock · CUSIP 33938T104

31 institutional holders +0 vs Q1 2026
1,158,5661.2m shares reported held*
9.1% of all shares outstanding*
$7.7mreported value*
4 new 6 added 9 reduced 4 sold out net sold ≈ $343.1k (-51.5k shares)

* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once. Holder counts are more reliable. Shares outstanding: 12.8m as of 2026-08-14, from the company's own SEC filing; the percentage can still exceed 100%: lent-out shares are counted by the lender and the buyer, and some reports overlap without saying so. Implied quarter-end price ≈ $6.66.

Trends to Q2 2026

Institutional holders

Managers reporting a position, each quarter

02040Q3 22: 14Q4 22: 18Q1 23: 15Q2 23: 16Q3 23: 17Q4 23: 18Q1 24: 17Q2 24: 16Q3 24: 17Q4 24: 18Q1 25: 23Q2 25: 24Q3 25: 28Q4 25: 30Q1 26: 31Q2 26: 3131Q3 22Q3 23Q3 24Q3 25Q2 26
Numbers
QuarterHolders
Q3 202214
Q4 202218
Q1 202315
Q2 202316
Q3 202317
Q4 202318
Q1 202417
Q2 202416
Q3 202417
Q4 202418
Q1 202523
Q2 202524
Q3 202528
Q4 202530
Q1 202631
Q2 202631

Buyers vs sellers

Managers adding to or starting a position, vs cutting or selling out

Bought or addedCut or sold out
20020Q3 24: 6 bought or addedQ3 24: 5 cut or sold outQ4 24: 4 bought or addedQ4 24: 4 cut or sold outQ4 24Q1 25: 11 bought or addedQ1 25: 9 cut or sold outQ2 25: 8 bought or addedQ2 25: 10 cut or sold outQ2 25Q3 25: 13 bought or addedQ3 25: 10 cut or sold outQ4 25: 14 bought or addedQ4 25: 8 cut or sold outQ4 25Q1 26: 17 bought or addedQ1 26: 7 cut or sold outQ2 26: 10 bought or addedQ2 26: 13 cut or sold outQ2 26
Numbers
QuarterBought or addedCut or sold out
Q3 202465
Q4 202444
Q1 2025119
Q2 2025810
Q3 20251310
Q4 2025148
Q1 2026177
Q2 20261013

Biggest buyers

Rothschild Wealth LLC Added +11,600+11.6k
BlackRock, Inc. Added +5,464+5.5k
CITADEL ADVISORS LLC Added +4,277+4.3k
VANGUARD CAPITAL MANAGEMENT LLC Added +3,962+4.0k
DIMENSIONAL FUND ADVISORS LP Added +3,836+3.8k
Integrated Wealth Concepts LLC New +650+650
Blue Trust, Inc. New +100+100
UBS Group AG New +71+71
JPMORGAN CHASE & CO Added +16+16
ROYAL BANK OF CANADA New +10+10

Biggest sellers

O'SHAUGHNESSY ASSET MANAGEMENT, LLC Sold out -21,488-21.5k
RITHOLTZ WEALTH MANAGEMENT Sold out -13,885-13.9k
RENAISSANCE TECHNOLOGIES LLC Reduced -11,194-11.2k
TWO SIGMA INVESTMENTS, LP Sold out -11,100-11.1k
Quantinno Capital Management LP Reduced -9,889-9.9k
Crestwood Advisors Group, LLC Reduced -9,889-9.9k
XTX Topco Ltd Reduced -1,935-1.9k
NewEdge Advisors, LLC Reduced -1,132-1.1k
Tower Research Capital LLC (TRC) Reduced -763-763
MORGAN STANLEY Reduced -156-156

Major shareholders (over 5%)

Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.

HolderStakeChangeShares Last filed
O BRIEN DANIEL B 13D · may seek influence filed 2026-02-11
Stated purposeN/A Full filing
 36.1% 4.6m≈ $30.6m 2026-02-11
COMPREHENSIVE FINANCIAL PLANNING INC 13G · institution filed 2025-01-24 10.1% 1.3m≈ $8.4m 2025-01-24

Insider purchases and sales since 1 Apr 2026

Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.

Officers and directors buying vs selling

Number of people, by quarter (10% owners not included)

BuyingSelling
101Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 0 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 1 sellingQ1 26Q2 26: 0 buyingQ2 26: 0 sellingQ3 26: 0 buyingQ3 26: 0 sellingQ3 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q4 20240—0——
Q1 20250—0——
Q2 20250—0——
Q3 20250—0——
Q4 20250—0——
Q1 20260—1$715.1k—
Q2 20260—0——
Q3 20260—0——

None reported since 1 Apr 2026.

Holders, Q2 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 329,751329.8k $2.2m $2.2m 0.00% Reduced -11.2k -11,194
2 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 282,117282.1k $1.9m $1.9m 0.00% Added +4.0k +3,962
3 DIMENSIONAL FUND ADVISORS LP 0.00% of their portfolio AUSTIN, TX 96,11696.1k $640.1k $640.1k 0.00% Added +3.8k +3,836
4 North Star Investment Management Corp. 0.03% of their portfolio CHICAGO, IL 90,00090.0k $599.4k $599.4k 0.03% Unchanged
5 Beartown Capital Management, LLC 0.22% of their portfolio HUNTINGTON WOODS, MI 74,75474.8k $497.9k $497.9k 0.22% Unchanged
6 Regal Investment Advisors LLC 0.01% of their portfolio KENTWOOD, MI 43,18543.2k $287.6k $287.6k 0.01% Unchanged
7 CITADEL ADVISORS LLC 0.00% of their portfolio MIAMI, FL 41,51441.5k $276.5k $276.5k 0.00% Added +4.3k +4,277
8 Rothschild Wealth LLC 0.02% of their portfolio OAK BROOK, IL 30,30030.3k $201.8k $201.8k 0.02% Added +11.6k +11,600
9 ESSEX INVESTMENT MANAGEMENT CO LLC 0.02% of their portfolio BOSTON, MA 26,18026.2k $174.4k $174.4k 0.02% Reduced -72 -72
10 BlackRock, Inc. 0.00% of their portfolio New York, NY 25,24425.2k $168.1k $168.1k 0.00% Added +5.5k +5,464
11 JAMES INVESTMENT RESEARCH, INC. 0.01% of their portfolio ALPHA, OH 18,30018.3k $121.9k $121.9k 0.01% Unchanged
12 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 18,30018.3k $121.9k $121.9k 0.00% Reduced -1.1k -1,132
13 Crestwood Advisors Group, LLC 0.00% of their portfolio BOSTON, MA 15,29215.3k $101.8k $101.8k 0.00% Reduced -9.9k -9,889
14 Quantinno Capital Management LP 0.00% of their portfolio NEW YORK, NY 15,29215.3k $101.8k $101.8k 0.00% Reduced -9.9k -9,889
15 Strait & Sound Wealth Management LLC 0.03% of their portfolio SAN FRANCISCO, CA 14,22814.2k $94.8k $94.8k 0.03% Unchanged
16 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 11,22511.2k $74.8k $74.8k 0.00% Reduced -1.9k -1,935
17 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 6,7146.7k $44.7k $44.7k 0.00% Unchanged
18 Covestor Ltd 0.02% of their portfolio LONDON, X0 6,1626.2k $41.0k $41.0k 0.02% Unchanged
19 Founders Capital Management 0.02% of their portfolio HOUSTON, TX 6,0006.0k $40.0k $40.0k 0.02% Unchanged
20 Federation des caisses Desjardins du Quebec 0.00% of their portfolio LEVIS, A8 2,5252.5k $16.2k $16.2k 0.00% Unchanged
21 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 1,3441.3k $9.0k $9.0k 0.00% Reduced -156 -156
22 WELLS FARGO & COMPANY/MN 0.00% of their portfolio SAN FRANCISCO, CA 1,2451.2k $8.3k $8.3k 0.00% Unchanged
23 JPMORGAN CHASE & CO 0.00% of their portfolio NEW YORK, NY 795795 $5.4k $5.4k 0.00% Added +16 +16
24 1 NORTH WEALTH SERVICES LLC 0.00% of their portfolio ANNAPOLIS, MD 700700 $4.7k $4.7k 0.00% Unchanged
25 Integrated Wealth Concepts LLC 0.00% of their portfolio WALTHAM, MA 650650 $4.3k $4.3k 0.00% New
26 OSAIC HOLDINGS, INC. 0.00% of their portfolio SCOTTSDALE, AZ 400400 $2.7k $2.7k 0.00% Unchanged
27 Blue Trust, Inc. 0.00% of their portfolio BRENTWOOD, TN 100100 $666 $666 0.00% New
28 UBS Group AG 0.00% of their portfolio ZURICH, V8 7171 $473 $473 0.00% New
29 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 4040 $266 $266 0.00% Reduced -763 -763
30 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 1212 $80 $80 0.00% Reduced -1 -1
31 ROYAL BANK OF CANADA 0.00% of their portfolio TORONTO, A6 1010 $0 $0 0.00% New