Sphere 3D Corp.
Sphere 3D Corp. (ANY) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ANY · as of Sep 30, 2025
Ownership Breakdown
19
Institutional Holders
▼ 6 vs Q2
$806,165
Total Inst. Value
▼ $1.33M vs Q2
4.24M
Shares Outstanding
freeFloat 97.31%
1.10M
13F Shares Held
▼ 2.52M 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
ANY largest shareholders · institutional ownership
Q3 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
VANGUARD GROUP INC services-computer processing & data preparation | 476.1K | 16.34% | 16.34% | $349.94M | Nov 7, 2025 | ▲ 26.1K |
CITADEL ADVISORS LLC services-computer processing & data preparation | 284.4K | 9.76% | 9.76% | $209.04M | Nov 14, 2025 | ▼ 7.0K |
SUSQUEHANNA INTERNATIONAL GROUP, LLP services-computer processing & data preparation | 108.6K | 3.73% | 3.73% | $79.82M | Nov 14, 2025 | ▼ 21.5K |
BNP PARIBAS ARBITRAGE, SNC services-computer processing & data preparation | 50.1K | 1.72% | 1.72% | $36.85M | Nov 13, 2025 | ▲ 37.4K |
MORGAN STANLEY services-computer processing & data preparation | 39.1K | 1.34% | 1.34% | $28.72M | May 27, 2026 | ▲ 28.8K |
GROUP ONE TRADING, L.P. services-computer processing & data preparation | 36.6K | 1.25% | 1.25% | $26.88M | Nov 12, 2025 | ▲ 19.1K |
INTEGRITY WEALTH ADVISORS, INC. services-computer processing & data preparation | 28.2K | 96.79% | 96.79% | $20.74M | Nov 14, 2025 | NEW |
SIMPLEX TRADING, LLC services-computer processing & data preparation | 26.2K | 89.96% | 89.96% | $19.00M | Nov 12, 2025 | ▲ 17.6K |
XTX TOPCO LTD services-computer processing & data preparation | 16.9K | 57.87% | 57.87% | $12.40M | Nov 14, 2025 | ▼ 54.8K |
CITADEL ADVISORS LLC services-computer processing & data preparation | 12.3K | 42.20% | 42.20% | $9.04M | Nov 14, 2025 | ▼ 22.9K |
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
6
Increased
+129.0K shares3
New Positions
first time holders6
Decreased
−623.3K shares9
Sold Out
fully exitedNet shares change (top 50)
494.2K
+129.0K / −623.3K
Net new holders
-6
3 new / 9 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ANY 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.
5
Buy transactions
5
Sell transactions
1.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Reppas Tiah Norton Chief Accounting Officer | Mar 12, 2026 | Sale | 6,250 | $1.61 | $10.1K | 12.4K | Form 4 ↗ |
Kalbfleisch Kurt L. CEO and CFO | Mar 13, 2026 | Sale | 9,800 | $1.59 | $15.6K | 64.5K | Form 4 ↗ |
Hanley Timothy P. director | Mar 4, 2026 | Award | 74,074 | — | — | 86.7K | 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
Sphere 3D Corp. (ANY) is primarily owned by institutional investors, who hold approximately 25.8% of total shares outstanding. Company insiders own approximately 2.69%, while retail and public investors account for the remaining 71.47%.
The largest institutional shareholder of Sphere 3D Corp. is VANGUARD GROUP INC, holding approximately 476,110 shares — equal to 16.34% of outstanding shares — as of September 30, 2025.
A total of 19 institutional investors currently hold ANY stock, with a combined institutional value of approximately $806,165 as of the most recent 13F filing period.
Frequently asked questions
ANY ownershipSphere 3D Corp. (ANY) is primarily owned by institutional investors, who hold approximately 25.8% of shares. The largest shareholder is VANGUARD GROUP INC with a 16.34% stake. Company insiders hold 2.69%. Data sourced from SEC Form 13F as of September 30, 2025.