Biles Linda M
Executive VP - Finance
SaleAlert
- Shares
- 2,700
- Price
- $0.00
- Value
- $0.00
SEC EDGAR · Forms 3/4/5Updated through Oct 30, 2026•35 filings
MPTI
M-tron Industries, Inc.
No net buying or selling imbalance over the last 3 months
No net buyers or sellers account for the net balance. There is no cluster of three distinct buyers within 30 days. We found no CEO/CFO purchases over 12 months.
How to read this signal
Only open-market P purchases and S sales count toward the signal. Vesting, options, taxes and gifts remain in the source data but do not trigger alerts. Rule 10b5-1 trades are shown as informational.
3-month balance
$0.00
0 buyers · 0 sellers
12-month purchases
$0.00
0 distinct insiders
12-month sales
$0.00
4 distinct insiders
Highlighted alerts
10
0 Rule 10b5-1 trades treated as informational
Buying cluster · 30 days
Fewer than three distinct buyers
CEO/CFO purchases · 12 months
No executive purchases found
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Form 4 raw → Raspberry
The value is in what we do not call a signal.
The SEC XML stores every transaction. Raspberry keeps that evidence, reads the footnotes and separates voluntary open-market activity from vesting, option exercises, gifts, tax withholding, stock purchase and dividend reinvestment plans and pre-programmed 10b5-1 trades.
61
Raw transactions
Everything returned by the filing
10
Voluntary view
P/S trades after deterministic checks
22
Administrative noise
Stored, never alerted
0
10b5-1
Shown as informational
SEC ownership XML facts
- Code
- S
- Shares
- 1,218
- Price
- $85.05
- Footnotes
- 3
Represents shares sold to cover tax withholding obligations in connection with the vesting of a restricted stock award. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $84.62 to $85.44, inclusive. The shares were sold pursuant to Rule 144 under the Securities Act of 1933, as amended, and a Form 144 was filed in connection with such sale. The reporting person undertakes to provide to the Securities and Exchange Commission staff, the issuer, or a security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Stock options of the Issuer vesting as follows: 30% on 4/4/2026, 30% on 4/4/2027, and 40% on 4/4/2028.
Raspberry interpretation
Informational — no alert
Reason: tax_withholding. The filing footnotes identify tax withholding.
Recent transactions
Voluntary purchases and sales; administrative noise stays hidden.
Drafts William Arnold
President
SaleAlert
- Shares
- 540
- Price
- $0.00
- Value
- $0.00
Biles Linda M
Executive VP - Finance
SaleAlert
- Shares
- 720
- Price
- $0.00
- Value
- $0.00
Biles Linda M
Executive VP - Finance
SaleAlert
- Shares
- 2,700
- Price
- $0.00
- Value
- $0.00
Drafts William Arnold
President
SaleAlert
- Shares
- 7,609
- Price
- $0.00
- Value
- $0.00
Biles Linda M
Executive VP - Finance
SaleAlert
- Shares
- 24,643
- Price
- $0.00
- Value
- $0.00
Pforr Cameron
CEO and CFO
SaleAlert
- Shares
- 21,500
- Price
- $0.00
- Value
- $0.00
Drafts William Arnold
President
SaleAlert
- Shares
- 3,600
- Price
- $0.00
- Value
- $0.00
Drafts William Arnold
President
SaleAlert
- Shares
- 3
- Price
- $0.00
- Value
- $0.00
Mega John S
Director
SaleAlert
- Shares
- 4,942
- Price
- $0.00
- Value
- $0.00
| Date | Insider | Transaction | Shares | Price | Value | Reading |
|---|---|---|---|---|---|---|
| Apr 14, 2026 | Biles Linda M Executive VP - Finance | Sale | 2,700 | $0.00 | $0.00 | |
| Apr 14, 2026 | Drafts William Arnold President | Sale | 540 | $0.00 | $0.00 | |
| Apr 14, 2026 | Biles Linda M Executive VP - Finance | Sale | 720 | $0.00 | $0.00 | |
| Apr 14, 2026 | Biles Linda M Executive VP - Finance | Sale | 2,700 | $0.00 | $0.00 | |
| Apr 13, 2026 | Drafts William Arnold President | Sale | 7,609 | $0.00 | $0.00 | |
| Apr 09, 2026 | Biles Linda M Executive VP - Finance | Sale | 24,643 | $0.00 | $0.00 | |
| Apr 07, 2026 | Pforr Cameron CEO and CFO | Sale | 21,500 | $0.00 | $0.00 | |
| Apr 06, 2026 | Drafts William Arnold President | Sale | 3,600 | $0.00 | $0.00 | |
| Dec 19, 2025 | Drafts William Arnold President | Sale | 3 | $0.00 | $0.00 | |
| Dec 05, 2025 | Mega John S Director | Sale | 4,942 | $0.00 | $0.00 |
“Alert” means a voluntary, unscheduled transaction according to the filing; it is not an investment recommendation. Official source: SEC EDGAR.