Nasdaq · CIK 0001591956
DRK Sphere 3D Corp.
Insider trading from SEC Form 4. Last filing 20 d ago. Close $2.75 on Oct 9, 2026, +152% from the 52-week low and -74% from the high.
Last 90 days
Net insider value
$0
no open-market trades
Buys
0
$0 by 0 insiders
Sells
0
$0 by 0 insiders
Insiders on file
9
with a Form 4 at this company
Price and insider trades, last year
DRKOct 9, 2026 · close 2.75
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 Sphere 3D Corp., scored.
| Score | Insider | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 23Weak | Kurt L. Kalbfleisch CEO and CFO sell | $16k 9,800 shares | -13% | +49% from low-85% from high | |
| 18Weak | Tiah Norton Reppas Chief Accounting Officer sell | $10k 6,250 shares | -34% | +47% from low-85% from high | |
| 21Weak | Kurt L. Kalbfleisch Chief Executive Officer sell | $42k 90,000 shares | -14% | - | |
| 39Weak | Patricia Trompeter CEO sell | $42k 35,000 shares | -6% | - | |
| 15Weak | Kurt L. Kalbfleisch SVP and CFO sell | $7,883 6,000 shares | -4% | - | |
| 26Weak | Patricia Trompeter CEO sell | $65k 50,000 shares | -8% | - |
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
| Filed | Seller | Shares | Value | Sale date | Past 3 months |
|---|---|---|---|---|---|
| Dec 13, 2024 | Trompeter Patricia Officer | 35,000 0.16% of outstanding | $42k | Dec 13, 2024 | $65k |
| Dec 12, 2024 | Trompeter Patricia Officer | 10,000 0.05% of outstanding | $13k | Dec 12, 2024 | $52k |
| Dec 11, 2024 | KURT LE ROY KALBFLEISCH Officer | 6,000 0.03% of outstanding | $7,883 | Dec 11, 2024 | none |
| Dec 11, 2024 | Trompeter Patricia Officer | 20,000 0.09% of outstanding | $26k | Dec 11, 2024 | $26k |
| Dec 10, 2024 | Trompeter Patricia Officer | 20,000 0.09% of outstanding | $26k | Dec 10, 2024 | none |
Transactions
The last 58 rows filed, every code.
| Date | Insider | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Sep 21, 2026 | Tiah Norton Reppas Chief Accounting Officer | MOption exercise Common Stock | +6,250 | $0.00 | $0 | 84,486 | 20 d ago |
| Sep 21, 2026 | Tiah Norton Reppas Chief Accounting Officer | FTax withholding Common Stock | -1,941 | $2.98 | $5,784 | 82,545 | 20 d ago |
| Sep 21, 2026 | Tiah Norton Reppas Chief Accounting Officer | MOption exercise Restricted Stock Unit (RSU)derivative | -6,250 | $0.00 | $0 | 27,500 | 20 d ago |
| Sep 8, 2026 | Joel M Block Chief Executive Officer | AGrant or award Common Shares | +166,666 | $3.00 | $500k | 1,029,476 | 33 d ago |
| Sep 8, 2026 | Nicholas Ray Gates director | AGrant or award Common Shares | +133,333 | $3.00 | $400k | 189,888 | 33 d ago |
| Sep 8, 2026 | Timothy P. Hanley director | AGrant or award Common Shares | +33,333 | $3.00 | $100k | 115,934 | 33 d ago |
| Sep 8, 2026 | Joel M Block Chief Executive Officer | AGrant or award Warrantsderivative | +166,666 | - | - | 166,666 | 33 d ago |
| Sep 8, 2026 | Nicholas Ray Gates director | AGrant or award Warrantsderivative | +133,333 | - | - | 133,333 | 33 d ago |
| Sep 8, 2026 | Timothy P. Hanley director | AGrant or award Warrantsderivative | +33,333 | - | - | 33,333 | 33 d ago |
| Sep 2, 2026 | Kurt L. Kalbfleisch Chief Financial Officer | MOption exercise Common Stock | +17,188 | $0.00 | $0 | 443,003 | 39 d ago |
| Sep 2, 2026 | Kurt L. Kalbfleisch Chief Financial Officer | MOption exercise Restricted Stock Unit (RSU)derivative | -17,188 | $0.00 | $0 | 43,749 | 39 d ago |
| Jun 8, 2026 | Joel M Block Chief Executive Officer | AGrant or award Common Shares | +500,000 | $0.00 | $0 | 862,810 | Jun 10, 2026 |
| Jun 8, 2026 | Marcus E Dent director | AGrant or award Common Shares | +50,000 | $0.00 | $0 | 60,210 | Jun 10, 2026 |
| Mar 11, 2026 | Tiah Norton Reppas Chief Accounting Officer | MOption exercise Common Stock | +16,250 | - | - | 18,634 | Mar 13, 2026 |
| Mar 12, 2026 | Kurt L. Kalbfleisch CEO and CFO | MOption exercise Common Stock | +18,358 | - | - | 74,255 | Mar 13, 2026 |
| Mar 12, 2026 | Tiah Norton Reppas Chief Accounting Officer | SOpen-market sale Common Stock | -6,250 | $1.61 | $10k | 12,384 | Mar 13, 2026 |
| Mar 13, 2026 | Kurt L. Kalbfleisch CEO and CFO | SOpen-market sale Common Stock | -9,800 | $1.59 | $16k | 64,455 | Mar 13, 2026 |
| Mar 11, 2026 | Tiah Norton Reppas Chief Accounting Officer | MOption exercise Restricted Stock Unit (RSU)derivative | -16,250 | - | - | 90,000 | Mar 13, 2026 |
| Mar 12, 2026 | Kurt L. Kalbfleisch CEO and CFO | MOption exercise Restricted Stock Unit (RSU)derivative | -18,358 | - | - | 229,297 | Mar 13, 2026 |
| Mar 4, 2026 | Timothy P. Hanley director | AGrant or award Restricted Stock Unit (RSU)derivative | +74,074 | - | - | 86,704 | Mar 9, 2026 |
| Mar 4, 2026 | Sue Harnett director | AGrant or award Restricted Stock Unit (RSU)derivative | +74,074 | - | - | 86,704 | Mar 9, 2026 |
| Mar 4, 2026 | Duncan J McEwan director | AGrant or award Restricted Stock Unit (RSU)derivative | +74,074 | - | - | 74,074 | Mar 9, 2026 |
| Mar 4, 2026 | Kurt L. Kalbfleisch CEO and CFO | AGrant or award Restricted Stock Unit (RSU)derivative | +150,000 | - | - | 247,655 | Mar 6, 2026 |
| Mar 4, 2026 | Tiah Norton Reppas Chief Accounting Officer | AGrant or award Restricted Stock Unit (RSU)derivative | +50,000 | - | - | 106,250 | Mar 6, 2026 |
| Dec 8, 2025 | Kurt L. Kalbfleisch Chief Executive Officer | MOption exercise Common Stock | +183,594 | - | - | 648,964 | Dec 10, 2025 |
| Dec 9, 2025 | Kurt L. Kalbfleisch Chief Executive Officer | SOpen-market sale Common Stock | -90,000 | $0.47 | $42k | 558,964 | Dec 10, 2025 |
| Dec 8, 2025 | Kurt L. Kalbfleisch Chief Executive Officer | MOption exercise Restricted Stock Unit (RSU)derivative | -183,594 | - | - | 976,561 | Dec 10, 2025 |
| Sep 3, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | MOption exercise Common Stock | +195,201 | - | - | 550,380 | Sep 5, 2025 |
| Sep 3, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | FTax withholding Common Stock | -85,010 | $0.61 | $52k | 465,370 | Sep 5, 2025 |
| Sep 3, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | MOption exercise Restricted Stock Unit (RSU)derivative | -195,201 | - | - | 1,160,155 | Sep 5, 2025 |
| Jun 5, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | MOption exercise Common Stock | +339,844 | - | - | 489,585 | Jun 9, 2025 |
| Jun 5, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | FTax withholding Common Stock | -134,406 | $0.74 | $99k | 355,179 | Jun 9, 2025 |
| Jun 5, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | MOption exercise Restricted Stock Unit (RSU)derivative | -339,844 | - | - | 1,355,356 | Jun 9, 2025 |
| May 29, 2025 | Timothy P. Hanley director | AGrant or award Restricted Stock Unit (RSU)derivative | -126,300 | - | - | 126,300 | Jun 2, 2025 |
| May 29, 2025 | Sue Harnett director | AGrant or award Restricted Stock Unit (RSU)derivative | -126,300 | - | - | 126,300 | Jun 2, 2025 |
| May 29, 2025 | Duncan J McEwan director | AGrant or award Non-Qualified Stock Option (right to buy)derivative | +149,500 | $0.00 | $0 | 149,500 | Jun 2, 2025 |
| May 15, 2025 | Sue Harnett director | MOption exercise Common Stock | +96,154 | - | - | 199,707 | May 19, 2025 |
| May 15, 2025 | Sue Harnett director | MOption exercise Restricted Stock Unit (RSU)derivative | -96,154 | - | - | 0 | May 19, 2025 |
| May 15, 2025 | Timothy P. Hanley director | MOption exercise Common Stock | +96,154 | - | - | 199,707 | May 16, 2025 |
| May 15, 2025 | Timothy P. Hanley director | MOption exercise Restricted Stock Unit (RSU)derivative | -96,154 | - | - | 0 | May 16, 2025 |
| Apr 22, 2025 | Kurt L. Kalbfleisch Interim CEO and CFO | AGrant or award Restricted Stock Unit (RSU)derivative | +1,000,000 | - | - | 1,695,200 | Apr 24, 2025 |
| Mar 14, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | MOption exercise Common Stock | +11,719 | - | - | 153,953 | Mar 18, 2025 |
| Mar 14, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | FTax withholding Common Stock | -4,212 | $0.49 | $2,077 | 149,741 | Mar 18, 2025 |
| Mar 14, 2025 | Kurt L. Kalbfleisch Acting CEO and CFO | MOption exercise Restricted Stock Unit (RSU)derivative | -11,719 | - | - | 695,200 | Mar 18, 2025 |
| Jan 29, 2025 | Kurt L. Kalbfleisch SVP and CFO | AGrant or award Restricted Stock Unit (RSU)derivative | +625,000 | - | - | 706,919 | Jan 31, 2025 |
| Dec 13, 2024 | Patricia Trompeter CEO | SOpen-market sale Common Stock | -35,000 | $1.21 | $42k | 532,187 | Dec 13, 2024 |
| Dec 10, 2024 | Kurt L. Kalbfleisch SVP and CFO | MOption exercise Common Stock | +11,719 | - | - | 148,234 | Dec 12, 2024 |
| Dec 10, 2024 | Patricia Trompeter CEO | MOption exercise Common Stock | +187,500 | - | - | 617,187 | Dec 12, 2024 |
| Dec 10, 2024 | Kurt L. Kalbfleisch SVP and CFO | SOpen-market sale Common Stock | -6,000 | $1.31 | $7,883 | 142,234 | Dec 12, 2024 |
| Dec 10, 2024 | Patricia Trompeter CEO | SOpen-market sale Common Stock | -20,000 | $1.31 | $26k | 597,187 | Dec 12, 2024 |
| Dec 11, 2024 | Patricia Trompeter CEO | SOpen-market sale Common Stock | -20,000 | $1.30 | $26k | 577,187 | Dec 12, 2024 |
| Dec 12, 2024 | Patricia Trompeter CEO | SOpen-market sale Common Stock | -10,000 | $1.27 | $13k | 567,187 | Dec 12, 2024 |
| Dec 10, 2024 | Kurt L. Kalbfleisch SVP and CFO | MOption exercise Restricted Stock Unit (RSU)derivative | -11,719 | - | - | 81,919 | Dec 12, 2024 |
| Dec 10, 2024 | Patricia Trompeter CEO | MOption exercise Restricted Stock Unit (RSU)derivative | -187,500 | - | - | 486,607 | Dec 12, 2024 |
| Dec 5, 2024 | Timothy P. Hanley director | MOption exercise Common Stock | +57,471 | - | - | 103,553 | Dec 9, 2024 |
| Dec 5, 2024 | Sue Harnett director | MOption exercise Common Stock | +57,471 | - | - | 103,553 | Dec 9, 2024 |
| Dec 5, 2024 | Timothy P. Hanley director | MOption exercise Restricted Stock Unit (RSU)derivative | -57,471 | - | - | 96,154 | Dec 9, 2024 |
| Dec 5, 2024 | Sue Harnett director | MOption exercise Restricted Stock Unit (RSU)derivative | -57,471 | - | - | 96,154 | Dec 9, 2024 |
Insiders
Everyone who has filed a Form 4 here.
- Joel M BlockChief Executive Officer
- Marcus E Dentdirector
- Nicholas Ray Gatesdirector
- Timothy P. Hanleydirector
- Sue Harnettdirector
- Kurt L. KalbfleischCEO and CFO
- Duncan J McEwandirector
- Tiah Norton ReppasChief Accounting Officer
- Patricia TrompeterCEO
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.