Vault-13

FLUX PWR HLDGS INC FLUX

COM NEW · Common Stock · CUSIP 344057302

33 institutional holders +4 vs Q3 2025
5,735,1615.7m shares reported held*
26.9% of all shares outstanding*
$13.7mreported value*
11 new 7 added 11 reduced 6 sold out net bought ≈ $695.4k (+507.5k 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: 21.3m as of 2026-02-09, 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 ≈ $2.40. Options: 6 managers hold calls ($734.4k notional), 3 hold puts ($39.2k).

Trends to Q4 2025

Institutional holders

Managers reporting a position, each quarter

02040Q3 22: 28Q4 22: 34Q1 23: 33Q2 23: 31Q3 23: 32Q4 23: 34Q1 24: 31Q2 24: 27Q3 24: 28Q4 24: 34Q1 25: 31Q2 25: 29Q3 25: 29Q4 25: 3333Q3 22Q2 23Q1 24Q4 24Q4 25
Numbers
QuarterHolders
Q3 202228
Q4 202234
Q1 202333
Q2 202331
Q3 202332
Q4 202334
Q1 202431
Q2 202427
Q3 202428
Q4 202434
Q1 202531
Q2 202529
Q3 202529
Q4 202533

Buyers vs sellers

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

Bought or addedCut or sold out
20020Q1 24: 17 bought or addedQ1 24: 14 cut or sold outQ2 24: 7 bought or addedQ2 24: 18 cut or sold outQ2 24Q3 24: 10 bought or addedQ3 24: 10 cut or sold outQ4 24: 16 bought or addedQ4 24: 12 cut or sold outQ4 24Q1 25: 9 bought or addedQ1 25: 16 cut or sold outQ2 25: 8 bought or addedQ2 25: 11 cut or sold outQ2 25Q3 25: 11 bought or addedQ3 25: 10 cut or sold outQ4 25: 18 bought or addedQ4 25: 17 cut or sold outQ4 25
Numbers
QuarterBought or addedCut or sold out
Q1 20241714
Q2 2024718
Q3 20241010
Q4 20241612
Q1 2025916
Q2 2025811
Q3 20251110
Q4 20251817

Calls vs puts

Options held, notional value, last 4 quarters. P/C = puts ÷ calls

CallsPuts
$0$500k$1m$1.5mQ1 25 calls: $27.6kQ1 25 puts: $1.7kQ1 25P/C 0.06Q2 25 calls: $13.1kQ2 25 puts: $453Q2 25P/C 0.03Q3 25 calls: $1.3mQ3 25 puts: $602.1kQ3 25P/C 0.47Q4 25 calls: $734.4kQ4 25 puts: $39.2kQ4 25P/C 0.05
Numbers
QuarterCallsPutsP/C
Q1 2025$27.6k$1.7k0.06
Q2 2025$13.1k$4530.03
Q3 2025$1.3m$602.1k0.47
Q4 2025$734.4k$39.2k0.05

Biggest buyers

VANGUARD GROUP INC Added +174,935+174.9k
Quadrature Capital Ltd New +119,472+119.5k
RENAISSANCE TECHNOLOGIES LLC New +65,205+65.2k
JGP Wealth Management, LLC New +58,166+58.2k
XTX Topco Ltd New +50,243+50.2k
TWO SIGMA INVESTMENTS, LP New +42,852+42.9k
CapitalatWork S.A. New +40,000+40.0k
BlackRock, Inc. Added +36,250+36.2k
GEODE CAPITAL MANAGEMENT, LLC Added +30,546+30.5k
STATE STREET CORP Added +14,000+14.0k

Biggest sellers

SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -27,699-27.7k
Virtu Financial LLC Sold out -19,362-19.4k
SIMPLEX TRADING, LLC Sold out -15,671-15.7k
JANE STREET GROUP, LLC Reduced -14,906-14.9k
Kestra Advisory Services, LLC Sold out -13,250-13.2k
LPL Financial LLC Reduced -12,562-12.6k
Tidal Investments LLC Reduced -11,520-11.5k
GROUP ONE TRADING LLC Reduced -8,272-8.3k
Cambridge Investment Research Advisors, Inc. Reduced -8,000-8.0k
Park Edge Advisors, LLC Reduced -6,400-6.4k

Biggest calls

PEAK6 LLC Added $482.1k379.6k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP Added $164.0k129.1k shares
CITADEL ADVISORS LLC Added $32.9k25.9k shares
GROUP ONE TRADING LLC Reduced $28.4k22.4k shares
TUDOR INVESTMENT CORP ET AL Reduced $26.0k20.5k shares
SIMPLEX TRADING, LLC Reduced $1.0k800 shares

Biggest puts

CITADEL ADVISORS LLC Added $34.4k27.1k shares
GROUP ONE TRADING LLC Reduced $4.6k3.6k shares
SIMPLEX TRADING, LLC Reduced $254200 shares

Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.

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
Formidable Asset Management, LLC 13G · institution filed 2025-12-16 14.1% 3.0m≈ $2.6m 2025-12-16
Cleveland Capital Management, L.L.C. 13G · passive investor -2.4 pts · filed 2026-07-24 7.1% -2.4 pts 1.5m 2026-07-24

Fell to 5% or below in the last year: CVI Investments, Inc. (0.0%, 2026-02-17)

Insider purchases and sales in Q4 2025

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
202Q1 24: 0 buyingQ1 24: 0 sellingQ2 24: 0 buyingQ2 24: 2 sellingQ2 24Q3 24: 0 buyingQ3 24: 0 sellingQ4 24: 0 buyingQ4 24: 0 sellingQ4 24Q1 25: 0 buyingQ1 25: 0 sellingQ2 25: 0 buyingQ2 25: 1 sellingQ2 25Q3 25: 0 buyingQ3 25: 0 sellingQ4 25: 0 buyingQ4 25: 0 sellingQ4 25
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
Q1 20240—0——
Q2 20240—2$482.0k$26.2k
Q3 20240—0——
Q4 20240—0——
Q1 20250—0——
Q2 20250—1$949—
Q3 20250—0——
Q4 20250—0——

None reported in Q4 2025.

Holders, Q4 2025

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Formidable Asset Management, LLC 1.51% of their portfolio CINCINNATI, OH 3,143,0563.1m $10.4m $10.4m 1.51% Added +13.9k +13,899
2 VANGUARD GROUP INC 0.00% of their portfolio Valley Forge, PA 697,985698.0k $886.4k $886.4k 0.00% Added +174.9k +174,935
3 Tidal Investments LLC 0.00% of their portfolio Milwaukee, WI 480,066480.1k $609.7k $609.7k 0.00% Reduced -11.5k -11,520
4 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 294,312294.3k $373.8k $373.8k 0.00% Unchanged
5 BlackRock, Inc. 0.00% of their portfolio New York, NY 189,973190.0k $241.3k $241.3k 0.00% Added +36.2k +36,250
6 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 169,611169.6k $215.4k $215.4k 0.00% Added +30.5k +30,546
7 Quadrature Capital Ltd 0.00% of their portfolio LONDON, X0 119,472119.5k $151.7k $151.7k 0.00% New
8 JANE STREET GROUP, LLC 0.00% of their portfolio NEW YORK, NY 114,460114.5k $145.4k $145.4k 0.00% Reduced -14.9k -14,906
9 Park Edge Advisors, LLC 0.03% of their portfolio Cleveland, OH 99,19099.2k $126.0k $126.0k 0.03% Reduced -6.4k -6,400
10 RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio NEW YORK, NY 65,20565.2k $82.8k $82.8k 0.00% New
11 JGP Wealth Management, LLC 0.01% of their portfolio BEND, OR 58,16658.2k $73.9k $73.9k 0.01% New
12 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 50,24350.2k $63.8k $63.8k 0.00% New
13 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 49,56849.6k $63.0k $63.0k 0.00% Added +14.0k +14,000
14 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 42,85242.9k $54.4k $54.4k 0.00% New
15 CapitalatWork S.A. 0.00% of their portfolio AUDERGHEM, C9 40,00040.0k $51.0k $51.0k 0.00% New
16 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 31,96732.0k $40.6k $40.6k 0.00% Reduced -27.7k -27,699
17 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 23,69123.7k $30.1k $30.1k 0.00% Unchanged
18 Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio FAIRFIELD, IA 15,00015.0k $19.0k $19.0k 0.00% Reduced -8.0k -8,000
19 Engineers Gate Manager LP 0.00% of their portfolio NEW YORK, NY 13,28613.3k $16.9k $16.9k 0.00% New
20 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 13,00013.0k $16.5k $16.5k 0.00% Reduced -12.6k -12,562
21 GOLDMAN SACHS GROUP INC 0.00% of their portfolio NEW YORK, NY 12,60812.6k $16.0k $16.0k 0.00% New
22 Clearstead Advisors, LLC 0.00% of their portfolio CLEVELAND, OH 11,00011.0k $14.0k $14.0k 0.00% Reduced -3.0k -3,000
23 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 10,30610.3k $13.1k $13.1k 0.00% Reduced -8.3k -8,272
24 UBS Group AG 0.00% of their portfolio ZURICH, V8 9,8529.9k $12.5k $12.5k 0.00% Added +8.3k +8,256
25 MAI Capital Management 0.00% of their portfolio INDEPENDENCE, OH 7,5007.5k $9.5k $9.5k 0.00% New
26 BANK OF AMERICA CORP /DE/ 0.00% of their portfolio CHARLOTTE, NC 7,0727.1k $9.0k $9.0k 0.00% Added +7.0k +6,959
27 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 2,0002.0k $2.5k $2.5k 0.00% New
28 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 1,3501.4k $1.7k $1.7k 0.00% Reduced -284 -284
29 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 1,0001.0k $1.3k $1.3k 0.00% Unchanged
30 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 730730 $927 $927 0.00% Unchanged
31 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 450450 $572 $572 0.00% Reduced -4.1k -4,133
32 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 100100 $127 $127 0.00% Reduced -1 -1
33 TUCKER ASSET MANAGEMENT LLC 0.00% of their portfolio LITTLETON, CO 9090 $114 $114 0.00% New