TeraWulf Inc.
TeraWulf Inc. (WULF) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · WULF · as of Sep 30, 2025
Ownership Breakdown
398
Institutional Holders
▲ 81 vs Q2
$3.06B
Total Inst. Value
▲ $2.13B vs Q2
495.53M
Shares Outstanding
freeFloat 77.08%
267.87M
13F Shares Held
▲ 55.66M vs Q2
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
WULF largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
BLACKROCK, INC. services-computer processing & data preparation | 26.01M | 6.72% | 6.72% | $297.01B | Nov 12, 2025 | ▲ 1.30M |
VANGUARD GROUP INC services-computer processing & data preparation | 24.48M | 6.33% | 6.33% | $279.56B | Nov 7, 2025 | ▲ 674.5K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer processing & data preparation | 20.48M | 5.29% | 5.29% | $233.83B | Nov 14, 2025 | ▲ 14.47M |
D. E. SHAW & CO., INC. services-computer processing & data preparation | 13.18M | 3.41% | 3.41% | $150.47B | Nov 14, 2025 | ▲ 13.18M |
NOMURA HOLDINGS INC services-computer processing & data preparation | 11.75M | 3.04% | 3.04% | $134.23B | Nov 14, 2025 | ▲ 5.72M |
CITADEL ADVISORS LLC services-computer processing & data preparation | 11.19M | 2.89% | 2.89% | $127.73B | Nov 14, 2025 | ▲ 5.91M |
JANE STREET GROUP, LLC services-computer processing & data preparation | 10.61M | 2.74% | 2.74% | $121.16B | Nov 14, 2025 | ▲ 5.35M |
DRIEHAUS CAPITAL MANAGEMENT LLC services-computer processing & data preparation | 9.01M | 2.33% | 2.33% | $102.86B | Nov 14, 2025 | ▲ 5.65M |
MORGAN STANLEY services-computer processing & data preparation | 8.92M | 2.30% | 2.30% | $101.83B | May 27, 2026 | ▲ 681.8K |
TWO SIGMA INVESTMENTS, LP services-computer processing & data preparation | 8.69M | 2.25% | 2.25% | $99.20B | Nov 14, 2025 | ▲ 3.13M |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q3 2025 vs prior quarter
Q3 2025
34
Increased
+111.41M shares6
New Positions
first time holders10
Decreased
−21.88M shares0
Sold Out
fully exitedNet shares change (top 50)
+89.53M
+111.41M / −21.88M
Net new holders
+30
6 new / 0 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
WULF insider trading · insider activity
Source: SEC Form 4
Insiders have been primarily selling shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
16
Buy transactions
39
Sell transactions
0.41
Buy/Sell ratio
$16M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Prager Paul B. Chief Executive Officer | May 26, 2026 | Sale | 166,650 | $24.43 | $4.07M | 4.25M | Form 4 ↗ |
Prager Paul B. Chief Executive Officer | May 27, 2026 | Sale | 109,849 | $25.58 | $2.81M | 4.14M | Form 4 ↗ |
Prager Paul B. Chief Executive Officer | May 27, 2026 | Sale | 56,801 | $26.57 | $1.51M | 4.08M | Form 4 ↗ |
Prager Paul B. Chief Executive Officer | May 18, 2026 | D-Return | 542,582 | — | — | 1.76M | Form 4 ↗ |
Khan Nazar M. Chief Technology Officer | May 18, 2026 | D-Return | 452,151 | — | — | 1.47M | Form 4 ↗ |
Langlais Kerri M. Chief Strategy Officer | May 18, 2026 | D-Return | 180,860 | — | — | 4.16M | Form 4 ↗ |
Fleury Patrick Chief Financial Officer | May 18, 2026 | D-Return | 128,695 | — | — | 4.01M | Form 4 ↗ |
Prager Paul B. Chief Executive Officer | May 6, 2026 | D-Return | 542,582 | — | — | 1.32M | Form 4 ↗ |
Khan Nazar M. Chief Technology Officer | May 6, 2026 | D-Return | 452,152 | — | — | 1.10M | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
TeraWulf Inc. (WULF) is primarily owned by institutional investors, who hold approximately 54.1% of total shares outstanding. Company insiders own approximately 22.92%, while retail and public investors account for the remaining 23.02%.
The largest institutional shareholder of TeraWulf Inc. is BLACKROCK, INC., holding approximately 26.01 million shares — equal to 6.72% of outstanding shares — as of September 30, 2025.
A total of 398 institutional investors currently hold WULF stock, with a combined institutional value of approximately $3.06 billion as of the most recent 13F filing period.
Frequently asked questions
WULF ownershipTeraWulf Inc. (WULF) is primarily owned by institutional investors, who hold approximately 54.1% of shares. The largest shareholder is BLACKROCK, INC. with a 6.72% stake. Company insiders hold 22.92%. Data sourced from SEC Form 13F as of September 30, 2025.