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Nasdaq · CIK 0000064463

SLNH Soluna Holdings, Inc

Insider trading from SEC Form 4. Last filing 19 d ago. Close $0.90 on Oct 9, 2026, +48% from the 52-week low and -80% from the high.

In brief

Soluna Holdings, Inc (SLNH) has 109 SEC Form 4 filings on file from 14 insiders, the latest filed on Sep 24, 2026. In the last 90 days insiders made 3 open-market buys worth $117k and 8 open-market sells worth $699k, net -$582k.

46 open-market trades have been scored at SLNH. The newest: Jessica L. Thomas (Chief Accounting Officer) sold $38k of stock on Sep 23, 2026, filed Sep 24, 2026, scored 21 (weak). The largest of the 46 shown: Matthew E. Lipman (director) sold $208k on Nov 5, 2024, scored 42 (moderate), under a 10b5-1 plan. 2 insiders sold within 14 days of each other around Sep 3, 2026.

13 Form 144 notices of planned sales are on file, the latest filed Sep 3, 2026.

Last 90 days

Net insider value
-$582k
more sold than bought
Buys
3
$117k by 2 insiders
Sells
8
$699k by 4 insiders
Insiders on file
14
with a Form 4 at this company

Price and insider trades, last year

SLNHOct 9, 2026 · close 0.90

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

Open-market buys and sells at Soluna Holdings, Inc, scored.

ScoreInsiderValueHoldingsPrice contextFiled
21WeakJessica L. Thomas
Chief Accounting Officer
sell
$38k
30,000 shares
-2%+103% from low-72% from high
23WeakWilliam P Phelan
director
sell
$13k
12,037 shares
-1%+161% from low-73% from high
13WeakJohn Belizaire
Chief Executive Officer
sell
$12k
1,000 shares
-1%+128% from low-76% from high
45ModerateWilliam P Phelan
director
sell
$100k
8,227 shares
-12%+141% from low-75% from high
43ModerateMichael Picchi
Chief Financial Officer
buy
$23k
20,000 shares
+1%+141% from low-75% from high
43ModerateJohn Belizaire
Chief Executive Officer
buy
$60k
50,000 shares
+1%+152% from low-74% from high
47ModerateWilliam P Phelan
director
sell
$180k
14,961 shares
-17%+167% from low-72% from high
46ModerateWilliam P Phelan
director
sell
$167k
13,843 shares
-14%+162% from low-73% from high
44ModerateMichael Picchi
Chief Financial Officer
buy
$34k
30,000 shares
+2%+177% from low-73% from high
38WeakWilliam P Phelan
director
sell
$77k
6,157 shares
-6%+179% from low-73% from high
53ModerateEdward R Hirshfield
director
sell
$111k
9,007 shares
-100%+209% from low-70% from high
47ModerateWilliam P Phelan
director
sell
$195k
18,000 shares
-14%+312% from low-60% from high
30WeakJessica L. Thomas
Chief Accounting Officer
sell
$8,225
4,838 shares
-0%+260% from low-65% from high
58ModerateMary Jennifer OReilly
Chief People Officer
sell
$74k
6,800 shares
-100%+219% from low-69% from high
55ModerateJessica L. Thomas
Chief Accounting Officer
sell
$27k
2,500 shares
-74%+219% from low-69% from high
48ModerateMary Jennifer OReilly
Chief People Officer
sell
$71k
6,600 shares
-49%+219% from low-69% from high
30WeakJohn Bottomley
director
sell
$10k
1,000 shares
-4%+288% from low-62% from high
20WeakJohn Belizaire
Chief Executive Officer
sell
$10k
1,000 shares
-1%+288% from low-62% from high
44ModerateMichael Picchi
Chief Financial Officer
buy
$163k
100,000 shares
+8%+307% from low-60% from high
5WeakJohn Belizaire
Chief Executive Officer
sell
$7,250
1,000 shares
-1%+78% from low-84% from high
30WeakWilliam P Phelan
director
sell
$1,833
1,300 shares
-0%+258% from low-68% from high
44ModerateDavid C Michaels
Chief Financial Officer
sell
$55k
6,686 shares
-1%+378% from low-57% from high
46ModerateEdward R Hirshfield
director
sell
$46k
4,741 shares
-34%+393% from low-55% from high
40ModerateWilliam P Phelan
director
sell
$103k
10,738 shares
-8%+393% from low-55% from high
30WeakEdward R Hirshfield
director
sell
$8,750
1,000 shares
-7%+328% from low-61% from high
40ModerateJohn Belizaire
Chief Executive Officer
sell
$13k
9,222 shares
-1%+278% from low-66% from high
35WeakEdward R Hirshfield
director
sell
$22k
3,000 shares
-17%+278% from low-66% from high
30WeakWilliam P Phelan
director
sell
$4,658
600 shares
-0%+355% from low-59% from high
36WeakWilliam P Phelan
director
sell
$39k
13,350 shares
-7%+70% from low-85% from high
40ModerateJessica L. Thomas
Chief Accounting Officer
sell
$9,240
3,300 shares
-49%+70% from low-85% from high
33WeakJohn Tunison
Chief Financial Officer
buy
$5,280
2,000 shares
+8%+70% from low-85% from high
30WeakMary Jennifer OReilly
Chief People Officer
sell
$5,874
1,600 shares
-9%+55% from low-86% from high
30WeakThomas J Marusak
director
sell
$1,593
1,991 shares
-1%+102% from low-82% from high
35WeakJessica L. Thomas
Chief Accounting Officer
sell
$8,435
10,851 shares
-16%+88% from low-83% from high
30WeakDavid C Michaels
Chief Financial Officer
sell
$1,260
400 shares
-0%-
30WeakMichael Toporek
director, owner
sell
$6,780
674 shares
-0%-
30WeakMatthew E. Lipman
director
sell
$9,659
900 shares
-3%-
30WeakMichael Toporek
director, owner
sell
$2,343
220 shares
-0%-
40ModerateJohn Belizaire
Chief Executive Officer
sell
$7,264
2,053 shares
-1%-
50ModerateEdward R Hirshfield
director
sell
$103k
8,741 shares
-33%-
47ModerateMary Jennifer OReilly
Chief People Officer
sell
$58k
5,000 shares
-25%-
46ModerateJessica L. Thomas
Chief Accounting Officer
sell
$40k
3,300 shares
-33%-
40ModerateMatthew E. Lipman
director
sell
$111k
30,980 shares
-100%-
40ModerateMichael Toporek
director
sell
$111k
30,980 shares
-100%-
42ModerateMatthew E. Lipman
director
sell
$208k
59,120 shares
-66%-
42ModerateMichael Toporek
director
sell
$208k
59,120 shares
-66%-

Planned sales

Form 144 notices filed before a sale of restricted or control stock, newest first. The sale itself usually reaches a Form 4 within days. All planned sales

FiledSellerSharesValueSale datePast 3 months
Sep 3, 2026 Phelan William P
Director
12,037
0.00% of outstanding
$13kSep 3, 2026$720k
Sep 1, 2026 Belizaire John
Officer
1,000
0.00% of outstanding
$12kSep 1, 2026none
Aug 19, 2026 Phelan William P
Director
43,188
0.02% of outstanding
$539kAug 19, 2026$195k
Jun 17, 2026 Phelan William P
Director
18,000
0.37% of outstanding
$193kJun 17, 2026none
Jun 1, 2026 Belizaire John
Officer
1,000
0.00% of outstanding
$10kJun 1, 2026$7,250
Apr 6, 2026 Belizaire John
Officer
1,000
0.00% of outstanding
$7,250Apr 6, 2026none
Dec 16, 2025 Phelan William P
Director
1,301
0.00% of outstanding
$2,043Dec 16, 2025$107k
Dec 11, 2025 MICHAELS DAVID C
Officer, Director
5,669
0.11% of outstanding
$56kDec 11, 2025none
Nov 21, 2025 Belizaire John
Officer
9,222
0.01% of outstanding
$14kNov 21, 2025none
Nov 19, 2025 Phelan William P
Director
11,338
0.23% of outstanding
$96kNov 19, 2025none
Jun 11, 2025 Phelan William P
Director
10,000
0.07% of outstanding
$29kJun 11, 2025$30k
Jun 10, 2025 Phelan William P
Director
20,000
0.15% of outstanding
$75kJun 10, 2025none
Nov 21, 2024 Belizaire John
Officer
2,053
0.04% of outstanding
$7,329Nov 21, 2024none

Transactions

The newest 50 of 163 rows filed, every code.

DateInsiderTransactionSharesPriceValueHoldings afterFiled
Sep 23, 2026Jessica L. Thomas
Chief Accounting Officer
SOpen-market sale
Common Stock
-30,000$1.26$38k1,481,41719 d ago
Sep 1, 2026Mary Jennifer OReilly
Chief People Officer
FTax withholding
Common Stock
-16,189$1.05$17k1,687,48626 d ago
Sep 1, 2026Jessica L. Thomas
Chief Accounting Officer
FTax withholding
Common Stock
-5,343$1.05$5,6101,511,41726 d ago
Sep 3, 2026William P Phelan
director
SOpen-market sale
Common Stock
-12,037$1.12$13k2,279,98539 d ago
Sep 1, 2026John Belizaire
Chief Executive Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock10b5-1
-1,000$11.91$12k98,04242 d ago
Aug 28, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-5,039$12.25$62k66,23342 d ago
Aug 31, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-3,188$12.08$39k63,04542 d ago
Aug 28, 2026Michael Picchi
Chief Financial Officer
POpen-market purchase
Common Stock
+20,000$1.13$23k1,431,25043 d ago
Aug 25, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-5,000$12.00$60k81,233Aug 27, 2026
Aug 26, 2026John Belizaire
Chief Executive Officer
POpen-market purchase
Common Stock
+50,000$1.20$60k7,063,105Aug 27, 2026
Aug 26, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-1,862$12.09$23k79,371Aug 27, 2026
Aug 27, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-8,099$12.08$98k71,272Aug 27, 2026
Aug 21, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-8,843$12.29$109k91,233Aug 25, 2026
Aug 24, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-5,000$11.66$58k86,233Aug 25, 2026
Aug 20, 2026Michael Picchi
Chief Financial Officer
POpen-market purchase
Common Stock
+20,000$1.15$23k1,401,250Aug 24, 2026
Aug 24, 2026Michael Picchi
Chief Financial Officer
POpen-market purchase
Common Stock
+10,000$1.14$11k1,411,250Aug 24, 2026
Aug 19, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-5,000$12.61$63k101,233Aug 21, 2026
Aug 20, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-1,157$12.45$14k100,076Aug 21, 2026
Aug 17, 2026Edward R Hirshfield
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-9,007$12.34$111k0Aug 18, 2026
Aug 1, 2026Ryan Carver
Chief Development Officer
AGrant or award
Common Stock
+3,200,000$0.00$03,200,000Aug 4, 2026
Jun 17, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-10,113$10.75$109k114,120Jun 22, 2026
Jun 18, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-4,813$11.00$53k109,307Jun 22, 2026
Jun 22, 2026William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-3,074$11.00$34k106,233Jun 22, 2026
Jun 15, 2026Jessica L. Thomas
Chief Accounting Officer
SOpen-market sale
Common Stock
-4,838$1.70$8,2251,516,760Jun 17, 2026
Jun 10, 2026Mary Jennifer OReilly
Chief People Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-5,729$10.80$62k1,071Jun 12, 2026
Jun 10, 2026Jessica L. Thomas
Chief Accounting Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-2,500$10.90$27k900Jun 12, 2026
Jun 11, 2026Mary Jennifer OReilly
Chief People Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-1,071$11.10$12k0Jun 12, 2026
Jun 8, 2026Mary Jennifer OReilly
Chief People Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-6,600$10.80$71k6,800Jun 10, 2026
Jun 1, 2026John Bottomley
director
AGrant or award
Common Stock
+726,401$0.00$01,703,559Jun 3, 2026
Jun 1, 2026William Hazelip
director
AGrant or award
Common Stock
+726,401$0.00$01,702,859Jun 3, 2026
Jun 1, 2026Edward R Hirshfield
director
AGrant or award
Common Stock
+726,401$0.00$01,702,719Jun 3, 2026
Jun 1, 2026Matthew E. Lipman
director
AGrant or award
Common Stock
+726,401$0.00$01,703,803Jun 3, 2026
Jun 1, 2026David C Michaels
Chief Financial Officer
AGrant or award
Common Stock
+849,556$0.00$02,029,343Jun 3, 2026
Jun 1, 2026Thomas J Marusak
director
AGrant or award
Common Stock
+849,556$0.00$01,998,596Jun 3, 2026
Jun 1, 2026Mary Jennifer OReilly
Chief People Officer
AGrant or award
Common Stock
+726,401$0.00$01,703,675Jun 3, 2026
Jun 1, 2026William P Phelan
director
AGrant or award
Common Stock
+973,307$0.00$02,292,022Jun 3, 2026
Jun 1, 2026Jessica L. Thomas
Chief Accounting Officer
AGrant or award
Common Stock
+726,401$0.00$01,521,598Jun 3, 2026
Jun 1, 2026Michael Toporek
director
AGrant or award
Common Stock
+7,310,534$0.00$017,132,816Jun 3, 2026
Jun 1, 2026John Belizaire
Chief Executive Officer
AGrant or award
Common Stock
+3,018,802$0.00$07,072,089Jun 3, 2026
Jun 1, 2026John Bottomley
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-1,000$10.00$10k26,489Jun 3, 2026
Jun 1, 2026John Belizaire
Chief Executive Officer
FTax withholding
Common Stock
-58,984$1.67$99k7,013,105Jun 3, 2026
Jun 1, 2026John Belizaire
Chief Executive Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock10b5-1
-1,000$10.40$10k99,042Jun 1, 2026
May 21, 2026Michael Picchi
Chief Financial Officer
POpen-market purchase
Common Stock
+100,000$1.63$163k1,381,250May 22, 2026
Apr 6, 2026John Belizaire
Chief Executive Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock10b5-1
-1,000$7.25$7,250100,042Apr 8, 2026
Jan 1, 2026Jessica L. Thomas
Chief Accounting Officer
AGrant or award
Common Stock
+460,000$0.00$0795,197Jan 5, 2026
Dec 16, 2025William P Phelan
director
SOpen-market sale
Common Stock
-1,300$1.41$1,8331,318,715Dec 17, 2025
Dec 12, 2025David C Michaels
Chief Financial Officer
SOpen-market sale
Common Stock
-1,017$2.19$2,2271,179,787Dec 15, 2025
Dec 12, 2025David C Michaels
Chief Financial Officer
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-5,669$9.26$52k52,977Dec 15, 2025
Dec 10, 2025William P Phelan
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-7,001$9.58$67k127,970Dec 12, 2025
Dec 10, 2025Edward R Hirshfield
director
SOpen-market sale
9.0% Series A Cumulative Perpetual Preferred Stock
-2,000$9.70$19k11,748Dec 12, 2025
50 of 163 rows shown.

Insiders

Everyone who has filed a Form 4 here.

Questions about SLNH

Answered from the filings on this page, as of the latest one.

Are insiders buying SLNH?

As of Sep 24, 2026, SEC Form 4 filings show 3 open-market buys worth $117k by 2 insiders and 8 open-market sells worth $699k by 4 insiders at Soluna Holdings, Inc in the last 90 days, net -$582k. Only purchases (code P) and sales (code S) count; grants, option exercises and tax withholding do not.

Who was the last insider to trade SLNH on the open market?

Jessica L. Thomas (Chief Accounting Officer) sold $38k of SLNH on Sep 23, 2026 and filed the Form 4 on Sep 24, 2026. InsiderTell scored 21 (weak).

How many insiders file Form 4 at Soluna Holdings, Inc?

14 people have filed a Form 4 at Soluna Holdings, Inc, among them John Belizaire (Chief Executive Officer), John Bottomley (director), Ryan Carver (Chief Development Officer). Officers, directors and holders of more than 10% of a share class must report their trades within two business days.

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

SLNH insider trading: Soluna Holdings, Inc | InsiderTell