Vault-13

FLUX PWR HLDGS INC FLUX

COM NEW · Common Stock · CUSIP 344057302

31 institutional holders -2 vs Q4 2025
5,330,8585.3m shares reported held*
25.0% of all shares outstanding*
$6.2mreported value*
4 new 8 added 5 reduced 8 sold out net sold ≈ $481.6k (-450.1k 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: 21.4m as of 2026-04-28, 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 ≈ $1.16. Options: 5 managers hold calls ($587.5k notional), 4 hold puts ($51.6k).

Trends to Q1 2026

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: 33Q1 26: 3131Q3 22Q3 23Q3 24Q3 25Q1 26
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
Q1 202631

Buyers vs sellers

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

Bought or addedCut or sold out
20020Q2 24: 7 bought or addedQ2 24: 18 cut or sold outQ3 24: 10 bought or addedQ3 24: 10 cut or sold outQ3 24Q4 24: 16 bought or addedQ4 24: 12 cut or sold outQ1 25: 9 bought or addedQ1 25: 16 cut or sold outQ1 25Q2 25: 8 bought or addedQ2 25: 11 cut or sold outQ3 25: 11 bought or addedQ3 25: 10 cut or sold outQ3 25Q4 25: 18 bought or addedQ4 25: 17 cut or sold outQ1 26: 12 bought or addedQ1 26: 13 cut or sold outQ1 26
Numbers
QuarterBought or addedCut or sold out
Q2 2024718
Q3 20241010
Q4 20241612
Q1 2025916
Q2 2025811
Q3 20251110
Q4 20251817
Q1 20261213

Calls vs puts

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

CallsPuts
$0$500k$1m$1.5mQ2 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 0.05Q1 26 calls: $587.5kQ1 26 puts: $51.6kQ1 26P/C 0.09
Numbers
QuarterCallsPutsP/C
Q2 2025$13.1k$4530.03
Q3 2025$1.3m$602.1k0.47
Q4 2025$734.4k$39.2k0.05
Q1 2026$587.5k$51.6k0.09

Biggest buyers

Centiva Capital, LP New +66,201+66.2k
SIMPLEX TRADING, LLC New +50,687+50.7k
XTX Topco Ltd Added +41,224+41.2k
GEODE CAPITAL MANAGEMENT, LLC Added +31,160+31.2k
CITIGROUP INC New +7,702+7.7k
UBS Group AG Added +5,526+5.5k
Tower Research Capital LLC (TRC) Added +2,075+2.1k
GROUP ONE TRADING LLC Added +1,806+1.8k
Park Edge Advisors, LLC Added +850+850
LPL Financial LLC Added +108+108

Biggest sellers

Formidable Asset Management, LLC Reduced -281,054-281.1k
Quadrature Capital Ltd Sold out -119,472-119.5k
JANE STREET GROUP, LLC Sold out -114,460-114.5k
RENAISSANCE TECHNOLOGIES LLC Sold out -65,205-65.2k
JGP Wealth Management, LLC Reduced -19,166-19.2k
Engineers Gate Manager LP Sold out -13,286-13.3k
GOLDMAN SACHS GROUP INC Sold out -12,608-12.6k
SUSQUEHANNA INTERNATIONAL GROUP, LLP Reduced -9,283-9.3k
MAI Capital Management Sold out -7,500-7.5k
BANK OF AMERICA CORP /DE/ Sold out -7,072-7.1k

Biggest calls

PEAK6 LLC Reduced $294.2k275.0k shares
CITADEL ADVISORS LLC Added $237.8k222.2k shares
JANE STREET GROUP, LLC New $30.3k28.3k shares
GROUP ONE TRADING LLC Added $25.1k23.5k shares
SIMPLEX TRADING, LLC Reduced $107100 shares

Biggest puts

CITADEL ADVISORS LLC Reduced $22.9k21.4k shares
SIMPLEX TRADING, LLC Added $12.7k11.9k shares
SUSQUEHANNA INTERNATIONAL GROUP, LLP New $12.3k11.5k shares
GROUP ONE TRADING LLC Reduced $3.6k3.4k 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 Q1 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
202Q2 24: 0 buyingQ2 24: 2 sellingQ3 24: 0 buyingQ3 24: 0 sellingQ3 24Q4 24: 0 buyingQ4 24: 0 sellingQ1 25: 0 buyingQ1 25: 0 sellingQ1 25Q2 25: 0 buyingQ2 25: 1 sellingQ3 25: 0 buyingQ3 25: 0 sellingQ3 25Q4 25: 0 buyingQ4 25: 0 sellingQ1 26: 0 buyingQ1 26: 1 sellingQ1 26
Numbers
QuarterBuyingBoughtSellingSoldSold under a plan
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——
Q1 20260—1$112.3k—
DateInsiderTradeSharesPrice ValueTheir holding
2026-03-17 Johnson Michael Director · Esenjay Investments, L.L.C. Sold 65,510 $1.27 $83.2k65.5k shares -2%
2026-03-16 Johnson Michael Director · Esenjay Investments, L.L.C. Sold 21,371 $1.36 $29.1k21.4k shares -0%

Their holding: how much the trade added to or took from the insider's holding (direct, or the trust or fund named). The same trade is sometimes reported by more than one insider, such as a fund and the director who represents it; totals count it once. A value is left blank where the reported price is far from the market price (usually a typo).

Holders, Q1 2026

#ManagerLocationShares Value% of their portfolioChangeShares change
1 Formidable Asset Management, LLC 0.54% of their portfolio CINCINNATI, OH 2,862,0022.9m $3.5m $3.5m 0.54% Reduced -281.1k -281,054
2 VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio MALVERN, PA 653,007653.0k $698.7k $698.7k 0.00% First filing
3 Tidal Investments LLC 0.00% of their portfolio Milwaukee, WI 480,066480.1k $513.7k $513.7k 0.00% Unchanged
4 HighTower Advisors, LLC 0.00% of their portfolio CHICAGO, IL 294,312294.3k $314.9k $314.9k 0.00% Unchanged
5 GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio BOSTON, MA 200,771200.8k $214.9k $214.9k 0.00% Added +31.2k +31,160
6 BlackRock, Inc. 0.00% of their portfolio New York, NY 189,973190.0k $203.3k $203.3k 0.00% Unchanged
7 Park Edge Advisors, LLC 0.02% of their portfolio Cleveland, OH 100,040100.0k $107.0k $107.0k 0.02% Added +850 +850
8 XTX Topco Ltd 0.00% of their portfolio LONDON, X0 91,46791.5k $97.9k $97.9k 0.00% Added +41.2k +41,224
9 VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio MALVERN, PA 87,59887.6k $93.7k $93.7k 0.00% First filing
10 Centiva Capital, LP 0.00% of their portfolio New York, NY 66,20166.2k $70.8k $70.8k 0.00% New
11 SIMPLEX TRADING, LLC 0.00% of their portfolio CHICAGO, IL 50,68750.7k $54.2k $54.2k 0.00% New
12 STATE STREET CORP 0.00% of their portfolio BOSTON, MA 49,56849.6k $53.0k $53.0k 0.00% Unchanged
13 CapitalatWork S.A. 0.00% of their portfolio AUDERGHEM, C9 40,00040.0k $43.0k $43.0k 0.00% Unchanged
14 JGP Wealth Management, LLC 0.00% of their portfolio BEND, OR 39,00039.0k $41.7k $41.7k 0.00% Reduced -19.2k -19,166
15 TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio NEW YORK, NY 35,89635.9k $38.4k $38.4k 0.00% Reduced -7.0k -6,956
16 NORTHERN TRUST CORP 0.00% of their portfolio CHICAGO, IL 23,69123.7k $25.3k $25.3k 0.00% Unchanged
17 SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio BALA CYNWYD, PA 22,68422.7k $24.3k $24.3k 0.00% Reduced -9.3k -9,283
18 UBS Group AG 0.00% of their portfolio ZURICH, V8 15,37815.4k $16.5k $16.5k 0.00% Added +5.5k +5,526
19 Cambridge Investment Research Advisors, Inc. 0.00% of their portfolio FAIRFIELD, IA 15,00015.0k $16.0k $16.0k 0.00% Unchanged
20 LPL Financial LLC 0.00% of their portfolio FORT MILL, SC 13,10813.1k $14.0k $14.0k 0.00% Added +108 +108
21 GROUP ONE TRADING LLC 0.00% of their portfolio CHICAGO, IL 12,11212.1k $13.0k $13.0k 0.00% Added +1.8k +1,806
22 Clearstead Advisors, LLC 0.00% of their portfolio CLEVELAND, OH 11,00011.0k $11.8k $11.8k 0.00% Unchanged
23 CITIGROUP INC 0.00% of their portfolio NEW YORK, NY 7,7027.7k $8.2k $8.2k 0.00% New
24 Vanguard Global Advisers, LLC 0.00% of their portfolio MALVERN, PA 3,1353.1k $3.4k $3.4k 0.00% First filing
25 Tower Research Capital LLC (TRC) 0.00% of their portfolio NEW YORK, NY 2,5252.5k $2.7k $2.7k 0.00% Added +2.1k +2,075
26 NewEdge Advisors, LLC 0.00% of their portfolio NEW ORLEANS, LA 2,0002.0k $2.1k $2.1k 0.00% Unchanged
27 IFP Advisors, Inc 0.00% of their portfolio TAMPA, FL 1,0001.0k $1.1k $1.1k 0.00% Unchanged
28 MORGAN STANLEY 0.00% of their portfolio NEW YORK, NY 730730 $781 $781 0.00% Unchanged
29 SBI Securities Co., Ltd. 0.00% of their portfolio TOKYO, M0 101101 $108 $108 0.00% Added +1 +1
30 Steward Partners Investment Advisory, LLC 0.00% of their portfolio STAMFORD, CT 100100 $107 $107 0.00% Reduced -1.2k -1,250
31 Caitong International Asset Management Co., Ltd 0.00% of their portfolio HONG KONG, K3 44 $4 $4 0.00% New