Comparable stake leader
Stammtisch Investments LLC
SEC ownership of TERAWULF INC.
Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001083301.
Disclosed value leader
Citadel Securities GP LLC
Comparable rows
50/50
Latest evidence
19 May 2026
- Public ticker
- WULF on Nasdaq
- Parsed ownership sources
-
13D/G, 3/4/5, and 13F
Source: Parsed SEC ownership filingsUse: Compare filing families carefully
- Largest SEC-reported holder
-
Stammtisch Investments LLC
Ranking: Comparable ownership first, then disclosed value
- Comparable ownership rows
-
50 of 50
Meaning: Rows with safely comparable ownership %
- Latest 13D/G holder
-
Stammtisch Investments LLC
Source: Latest parsed Schedule 13D/G stake
- Latest parsed ownership date
-
19 May 2026
Freshness: Most recent filing date in this holder set
- Issuer CIK
- 0001083301
- Issuer location
- Easton, MD
Ownership snapshot
CIK-linked ownership evidence from parsed SEC filings.
3 signals
Issuer
Names, identifiers, and filing context for this profile.
2 identity fields
Ownership snapshot
Top shareholders of TERAWULF INC. (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
Stammtisch Investments LLC
Disclosed value leader
Citadel Securities GP LLC
Comparable rows
50/50
Latest evidence
19 May 2026
13D/G
3/4/5
13F
Lead comparable stake: 7%
13D/G row: Stammtisch Investments LLC
Showing 1-8 of 50 holder rows.
Quick read
Stammtisch Investments LLC leads the comparable SEC ownership view at 7%.
50 of 50 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens Stammtisch Investments LLC's linked filing trail.
Comparable ownership
Top 5
Stammtisch Investments LLC
7%
BANK OF NOVA SCOTIA
6.2%
Citadel Securities GP LLC
5.9%
JANE STREET GROUP, LLC
5.8%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.4%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-8 of 50 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| Stammtisch Investments LLC |
13D/G
3/4/5
Paul B. Prager · Controlled by Issuer's CEO
|
7%
|
$78,795,850
26,984,880 shares
|
$0 | 30 Dec 2024 |
| BANK OF NOVA SCOTIA |
13D/G
|
6.2%
|
—
27,383,209 shares
|
$0 | 31 Dec 2025 |
| Citadel Securities GP LLC |
13D/G
|
5.9%
|
$582,409,067
29,091,362 shares
|
+$265,287,583 | 19 May 2026 |
| JANE STREET GROUP, LLC |
13D/G
13F
Company
|
5.8%
|
$539,772,763
27,751,813 shares
|
+$195,940,603 | 28 Apr 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13D/G
13F
Vanguard Portfolio Management · Company
|
5.4%
|
$328,166,151
22,741,937 shares
|
$0 | 31 Mar 2026 |
| LONE PINE CAPITAL LLC |
13D/G
13F
Company
|
5.1%
|
$313,782,211
21,745,129 shares
|
$0 | 08 Apr 2026 |
| Bayshore Capital LLC |
13D/G
3/4/5
Bryan J. Pascual · 10%+ Owner
|
4.9%
|
$102,387,707
20,076,021 shares
|
$0 | 28 Aug 2025 |
| Revolve Capital LLC |
13D/G
3/4/5
10%+ Owner
|
4.9%
|
$72,712,822
18,985,071 shares
|
$0 | 05 Jun 2025 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
Forms 3/4/5 flow
Insider trading overview
Net insider flow leans to selling over the last 12 months. Net value: -$31,142,253.
Buys
$250,570
Insiders: 1
Sells
$31,392,822
Insiders: 4
Net
-$31,142,253
Shares: -1,602,770
Window
Last 12 months
4 rolling buckets
Buy value
Sell value
Shares: 17,272
Shares: 1,620,042
| Window (months) | Buy shares | Sell shares | Buy value | Sell value | Net value |
|---|---|---|---|---|---|
| 0-3 | 0 | 687,500 | $0 | $16,539,864 | -$16,539,864 |
| 3-6 | 13,094 | 875,000 | $200,392 | $14,228,999 | -$14,028,607 |
| 6-9 | 4,178 | 0 | $50,178 | $0 | +$50,178 |
| 9-12 | 0 | 57,542 | $0 | $623,959 | -$623,959 |
Reporting owners
Insider holders from Forms 3/4/5
Showing 1-20 of 27 reporting-owner rows connected to TERAWULF INC.. Open a relationship link for the CIK-to-CIK filing trail.
Rows
27
Largest Forms 3/4/5 holder
Paul B. Prager
Net 12M change
-$31,142,252
Latest report
30 Jun 2026
| Name | Relationship | Holdings Value | Past Year Net Change | Change % | Valuation | Report Date |
|---|---|---|---|---|---|---|
| Paul B. Prager | Chief Executive Officer, Director | $635,770,146 | -$21,084,863 | -3.2% | Mixed | 29 Jun 2026 |
| Nazar M. Khan | Chief Technology Officer, Director | $399,375,687 | Mixed | 18 May 2026 | ||
| Kerri M. Langlais | Chief Strategy Officer, Director | $72,461,427 | Median | 18 May 2026 | ||
| Patrick Fleury | Chief Financial Officer | $57,799,639 | -$9,684,000 | -14% | Median | 18 May 2026 |
| Bryan J. Pascual | 10%+ Owner | $34,358,361 | Mixed | 28 Feb 2023 | ||
| Bayshore Capital LLC | 10%+ Owner | $33,672,621 | Mixed | 13 Dec 2021 | ||
| Stammtisch Investments LLC | Controlled by Issuer's CEO | $33,095,375 | Mixed | 14 Jun 2024 | ||
| Revolve Capital LLC | 10%+ Owner | $22,325,778 | Mixed | 28 Feb 2023 | ||
| Steven T. Pincus | Director | $5,853,027 | Mixed | 23 Jun 2026 | ||
| Walter E. Carter | Director | $5,260,991 | Mixed | 30 Jun 2026 | ||
| Michael C. Bucella | Director | $4,959,477 | +$250,570 | +5.3% | Mixed | 30 Jun 2026 |
| Lisa A. Prager | Director | $4,565,379 | Mixed | 30 Jun 2026 | ||
| Kenneth J. Deane | Chief Acct Officer + Treasurer | $3,314,900 | Mixed | 16 May 2025 | ||
| Catherine J. Motz | Director | $3,089,637 | -$584,215 | -16% | Mixed | 23 Jun 2026 |
| Amanda Fabiano | Director | $1,497,916 | -$39,744 | -2.6% | Mixed | 23 Jun 2026 |
| William J. Tanimoto | Chief Accounting Officer | $705,598 | Median | 24 Jun 2026 | ||
| Jason Griffin New | Director | $381,935 | Mixed | 20 Oct 2023 | ||
| Christopher Allen Jarvis | Director | $142,627 | Mixed | 31 Dec 2024 | ||
| Claude P. Piguet | Vice President, Operations | Mixed | 13 Dec 2021 | |||
| Kenneth D. Hegman | Chief Operating Officer | Mixed | 13 Dec 2021 |
Recent insider transactions for TERAWULF INC.
Showing up to 300 recent insider transactions from the last 12 months.
| Insider | Symbol | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares owned | Date | Ownership |
|---|---|---|---|---|---|---|---|---|---|---|
| Lisa A. Prager | WULF | Common stock, $0.001 par value per share | Award | 0.33% | 1,013 | 311,510 | 30 Jun 2026 | Direct | ||
| Walter E. Carter | WULF | Common stock, $0.001 par value per share | Award | 0.35% | 1,266 | 359,716 | 30 Jun 2026 | Direct | ||
| Michael C. Bucella | WULF | Common stock, $0.001 par value per share | Award | 0.3% | 1,013 | 338,821 | 30 Jun 2026 | Direct | ||
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Sale | -3.37% | $3,656,950 | $26.60 | -137,500 | 3,945,052 | 29 Jun 2026 | By Beowulf E&D Holdings Inc. |
| William J. Tanimoto | WULF | Common stock, $0.001 par value per share | Options Exercise | 25.7% | 10,000 | 48,898 | 24 Jun 2026 | Direct | ||
| William J. Tanimoto | WULF | Restricted Stock Units | Options Exercise | -33.3% | -10,000 | 20,000 | 24 Jun 2026 | Direct | ||
| Lisa A. Prager | WULF | Common stock, $0.001 par value per share | Options Exercise | 22% | 56,023 | 310,497 | 23 Jun 2026 | Direct | ||
| Lisa A. Prager | WULF | Restricted Stock Units | Award | 6,950 | 6,950 | 23 Jun 2026 | Direct | |||
| Lisa A. Prager | WULF | Restricted Stock Units | Options Exercise | -100% | -56,023 | 0 | 23 Jun 2026 | Direct | ||
| Steven T. Pincus | WULF | Common stock, $0.001 par value per share | Options Exercise | 18.7% | 63,026 | 399,391 | 23 Jun 2026 | Direct | ||
| Steven T. Pincus | WULF | Restricted Stock Units | Award | 7,818 | 7,818 | 23 Jun 2026 | Direct | |||
| Steven T. Pincus | WULF | Restricted Stock Units | Options Exercise | -100% | -63,026 | 0 | 23 Jun 2026 | Direct | ||
| Catherine J. Motz | WULF | Common stock, $0.001 par value per share | Options Exercise | 36.6% | 56,023 | 209,241 | 23 Jun 2026 | Direct | ||
| Catherine J. Motz | WULF | Restricted Stock Units | Award | 6,950 | 6,950 | 23 Jun 2026 | Direct | |||
| Catherine J. Motz | WULF | Restricted Stock Units | Options Exercise | -100% | -56,023 | 0 | 23 Jun 2026 | Direct | ||
| Amanda Fabiano | WULF | Common stock, $0.001 par value per share | Options Exercise | 137.4% | 56,023 | 96,792 | 23 Jun 2026 | Direct | ||
| Amanda Fabiano | WULF | Restricted Stock Units | Award | 6,950 | 6,950 | 23 Jun 2026 | Direct | |||
| Amanda Fabiano | WULF | Restricted Stock Units | Options Exercise | -100% | -56,023 | 0 | 23 Jun 2026 | Direct | ||
| Walter E. Carter | WULF | Common stock, $0.001 par value per share | Options Exercise | 18.5% | 56,023 | 358,450 | 23 Jun 2026 | Direct | ||
| Walter E. Carter | WULF | Restricted Stock Units | Award | 6,950 | 6,950 | 23 Jun 2026 | Direct | |||
| Walter E. Carter | WULF | Restricted Stock Units | Options Exercise | -100% | -56,023 | 0 | 23 Jun 2026 | Direct | ||
| Michael C. Bucella | WULF | Common stock, $0.001 par value per share | Options Exercise | 19.9% | 56,023 | 337,808 | 23 Jun 2026 | Direct | ||
| Michael C. Bucella | WULF | Restricted Stock Units | Award | 6,950 | 6,950 | 23 Jun 2026 | Direct | |||
| Michael C. Bucella | WULF | Restricted Stock Units | Options Exercise | -100% | -56,023 | 0 | 23 Jun 2026 | Direct | ||
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Sale | -3.92% | $4,318,759 | $25.92 | -166,650 | 4,082,552 | 27 May 2026 | By Beowulf E&D Holdings Inc. |
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Sale | -3.77% | $4,071,210 | $24.43 | -166,650 | 4,249,202 | 26 May 2026 | By Beowulf E&D Holdings Inc. |
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -23.6% | -542,582 | 1,761,479 | 18 May 2026 | Direct | ||
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Options Exercise | 74.2% | 981,161 | 2,304,061 | 18 May 2026 | Direct | ||
| Paul B. Prager | WULF | Performance-Based Restricted Stock Units | Options Exercise | -100% | -981,161 | 0 | 18 May 2026 | Direct | ||
| Nazar M. Khan | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -23.5% | -452,151 | 1,469,592 | 18 May 2026 | Direct | ||
| Nazar M. Khan | WULF | Common stock, $0.001 par value per share | Options Exercise | 74% | 817,634 | 1,921,743 | 18 May 2026 | Direct | ||
| Nazar M. Khan | WULF | Performance-Based Restricted Stock Units | Options Exercise | -100% | -817,634 | 0 | 18 May 2026 | Direct | ||
| Kerri M. Langlais | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -4.17% | -180,860 | 4,156,881 | 18 May 2026 | Direct | ||
| Kerri M. Langlais | WULF | Common stock, $0.001 par value per share | Options Exercise | 8.15% | 327,054 | 4,337,741 | 18 May 2026 | Direct | ||
| Kerri M. Langlais | WULF | Performance-Based Restricted Stock Units | Options Exercise | -100% | -327,054 | 0 | 18 May 2026 | Direct | ||
| Patrick Fleury | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -3.11% | -128,695 | 4,005,519 | 18 May 2026 | Direct | ||
| Patrick Fleury | WULF | Common stock, $0.001 par value per share | Options Exercise | 8.59% | 327,054 | 4,134,214 | 18 May 2026 | Direct | ||
| Patrick Fleury | WULF | Performance-Based Restricted Stock Units | Options Exercise | -100% | -327,054 | 0 | 18 May 2026 | Direct | ||
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -29.1% | -542,582 | 1,322,900 | 06 May 2026 | Direct | ||
| Paul B. Prager | WULF | Common stock, $0.001 par value per share | Options Exercise | 111% | 981,162 | 1,865,482 | 06 May 2026 | Direct | ||
| Paul B. Prager | WULF | Performance-Based Restricted Stock Units | Options Exercise | -50% | -981,162 | 981,161 | 06 May 2026 | Direct | ||
| Nazar M. Khan | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -29% | -452,152 | 1,104,109 | 06 May 2026 | Direct | ||
| Nazar M. Khan | WULF | Common stock, $0.001 par value per share | Options Exercise | 110.7% | 817,635 | 1,556,261 | 06 May 2026 | Direct | ||
| Nazar M. Khan | WULF | Performance-Based Restricted Stock Units | Options Exercise | -50% | -817,635 | 817,634 | 06 May 2026 | Direct | ||
| Kerri M. Langlais | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -4.31% | -180,860 | 4,010,687 | 06 May 2026 | Direct | ||
| Kerri M. Langlais | WULF | Common stock, $0.001 par value per share | Options Exercise | 8.46% | 327,054 | 4,191,547 | 06 May 2026 | Direct | ||
| Kerri M. Langlais | WULF | Performance-Based Restricted Stock Units | Options Exercise | -50% | -327,054 | 327,054 | 06 May 2026 | Direct | ||
| Patrick Fleury | WULF | Common stock, $0.001 par value per share | Disposed to Issuer | -3.27% | -128,695 | 3,807,160 | 06 May 2026 | Direct | ||
| Patrick Fleury | WULF | Common stock, $0.001 par value per share | Options Exercise | 9.06% | 327,054 | 3,935,855 | 06 May 2026 | Direct | ||
| Patrick Fleury | WULF | Performance-Based Restricted Stock Units | Options Exercise | -50% | -327,054 | 327,054 | 06 May 2026 | Direct |
* marks a reported price that did not pass the local price check.