Stock Trading Canary

United States · SEC Form 4 · Snapshot date: 2026-10-18 · Built: 2026-10-18 · 中文

← United States · Coverage record

US · SEC FORM 4

Backblaze, Inc.

BLZE · Nasdaq · CIK 0001462056 · Technology · Software—Infrastructure

INSIDER SIGNAL

No active buy signal

0 qualifying P purchase groups
in the current 180-day scoring window

17 Form 4 transaction lines observed in the same window
2 sales · 15 option, withholding, award, gift or other lines

Last qualifying purchase2023-07-06 · TMT INVESTMENTS PLC · $0

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesLow
Buy signal statusInactive
Score anatomy

No score is calculated because there is no qualifying purchase in the active window. Unavailable inputs are not treated as zero or as a bearish signal.

ClusterNot calculated
Purchase sizeNot calculated
RoleNot calculated
RecencyNot calculated
ConvictionNot calculated

Why is there no score?

  • No qualifying open-market purchase supplies cluster, size, role, recency or conviction inputs.
  • Sales and other Form 4 activity remain visible as context and do not create a negative score.

Sales and other Form 4 activity are shown separately and do not create a negative buy signal. Absence of buying is not scored as bearish.

Insider activity timeline

Owner lanes show the latest 180 days. Symbol shape identifies the transaction type; sales remain context only.

AprMayJunJulAugSepOct
Budman GlebCEO and Chairperson
○○○○○○▼
Suidan MarcChief Financial Officer
○○○○○▼
NELSON BARBARA HDirector
○
FRY EARL EDirector
○
D An EvelynDirector
○
Carter Miller JocelynDirector
○
● Purchase▼ Sale○ Other

—

Purchase breadth, concentration & cluster buying

These modules activate when qualifying purchases enter the 180-day research window.

SIGNAL HISTORY

No recorded active-signal snapshot

Scores are archived only when the company qualifies for a published US buy-signal snapshot. Last qualifying purchase: 2023-07-06 · TMT INVESTMENTS PLC.

Recent Form 4 activity

0Purchases
2Sales
26Other Form 4 lines
20SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING2 sale line(s) · context only
OTHER15 exercise / withholding / award / gift / other lines
10b5-1 / PLANNEDNot assessed

P is an open-market or private purchase. S is a sale. M, F, A and G usually describe exercises, tax withholding, awards and gifts. These categories remain visually separate.

Market context

Market context has not been captured for this ticker yet. The daily market-context job processes the US universe in rotating batches.

Short interest

Short interest is external context reported to FINRA by broker-dealers. It does not affect the Insider Signal.

Shares short
6,910,108
Previous report
5,508,117
Avg daily volume
1,822,825
Days to cover
3.8

FINRA settlement date: 2026-09-30 · Captured 2026-10-12 · FINRA equity short interest ↗. A share count, published about a week after each of two settlement dates a month; not a percentage of shares outstanding.

Historical equity purchases

Qualifying code P transactions in the local Form 4 history, including purchases outside the current signal window.

Transaction dateReporting ownerTypeSecuritySharesAvg. priceApprox. valueSource
2023-07-06TMT INVESTMENTS PLCPurchase (P)Class A Common Stock3,594,030USD 0.00USD 0SEC filing ↗

Form 4 evidence

28 transaction lines in the latest 365-day window; 1,366 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-21Suidan MarcSale (S)Class A Common Stock2,110USD 15.82USD 33,380SEC filing ↗
2026-08-21Budman GlebSale (S)Class A Common Stock12,855USD 15.82USD 203,366SEC filing ↗
2026-08-20Suidan MarcD (D)Class A Common Stock11,083USD 16.24USD 179,988SEC filing ↗
Show recent Form 4 evidence (28 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-08-21Suidan MarcSale (S)Class A Common Stock2,110USD 15.82USD 33,380SEC filing ↗
2026-08-21Budman GlebSale (S)Class A Common Stock12,855USD 15.82USD 203,366SEC filing ↗
2026-08-20Suidan MarcD (D)Class A Common Stock11,083USD 16.24USD 179,988SEC filing ↗
2026-08-20Budman GlebD (D)Class A Common Stock11,083USD 16.24USD 179,988SEC filing ↗
2026-05-26NELSON BARBARA HAward / grant (A)Class A Common Stock19,306USD 0.00USD 0SEC filing ↗
2026-05-26FRY EARL EAward / grant (A)Class A Common Stock19,306USD 0.00USD 0SEC filing ↗
2026-05-26D An EvelynAward / grant (A)Class A Common Stock19,306USD 0.00USD 0SEC filing ↗
2026-05-26Carter Miller JocelynAward / grant (A)Class A Common Stock19,306USD 0.00USD 0SEC filing ↗
2026-05-20Budman GlebTax withholding (F)Class A Common Stock13,177USD 7.43USD 97,905SEC filing ↗
2026-05-20Budman GlebD (D)Class A Common Stock18,000USD 7.43USD 133,740SEC filing ↗
2026-05-20Suidan MarcTax withholding (F)Class A Common Stock269USD 7.43USD 1,999SEC filing ↗
2026-05-20Suidan MarcD (D)Class A Common Stock18,000USD 7.43USD 133,740SEC filing ↗
2026-05-20Budman GlebTax withholding (F)Class A Common Stock13,256USD 7.43USD 98,492SEC filing ↗
2026-05-20Budman GlebD (D)Class A Common Stock18,000USD 7.43USD 133,740SEC filing ↗
2026-05-19Suidan MarcAward / grant (A)Class A Common Stock2,500USD 3.68USD 9,200SEC filing ↗
2026-05-14Suidan MarcTax withholding (F)Class A Common Stock2,555USD 7.27USD 18,575SEC filing ↗
2026-05-14Budman GlebTax withholding (F)Class A Common Stock3,833USD 7.27USD 27,866SEC filing ↗
2026-04-01Suidan MarcAward / grant (A)Class A Common Stock85,470USD 0.00USD 0SEC filing ↗
2026-04-01Budman GlebAward / grant (A)Class A Common Stock128,205USD 0.00USD 0SEC filing ↗
2026-03-10Spraggins DanielAward / grant (A)Class A Common Stock234,220USD 0.00USD 0SEC filing ↗
2026-02-27Suidan MarcTax withholding (F)Class A Common Stock15,106USD 3.76USD 56,799SEC filing ↗
2026-02-27Suidan MarcAward / grant (A)Class A Common Stock41,144USD 0.00USD 0SEC filing ↗
2026-02-27Budman GlebTax withholding (F)Class A Common Stock26,767USD 3.76USD 100,644SEC filing ↗
2026-02-27Budman GlebAward / grant (A)Class A Common Stock74,602USD 0.00USD 0SEC filing ↗
2026-02-20Suidan MarcTax withholding (F)Class A Common Stock7,721USD 4.40USD 33,972SEC filing ↗
2026-02-20Budman GlebTax withholding (F)Class A Common Stock21,002USD 4.40USD 92,409SEC filing ↗
2025-11-20Suidan MarcTax withholding (F)Class A Common Stock6,708USD 4.33USD 29,046SEC filing ↗
2025-11-20Budman GlebTax withholding (F)Class A Common Stock27,793USD 4.33USD 120,344SEC filing ↗

Multiple price lines in one filing are grouped and share-weighted. Price and value are blank when a grouped filing line lacks price evidence.

Snapshot & identity

Snapshot date2026-10-18
Ranking versionUS-v1.2
Data qualityPASS ELIGIBLE · —
TickerBLZE
CIK0001462056
SectorTechnology
IndustrySoftware—Infrastructure Yahoo Finance
SEC SIC7372 Services-Prepackaged Software
ExchangeNasdaq

Data coverage

Local Form 4 history1,366 transaction lines from 2021-11-12 to 2026-08-21
1 P purchase lines · 1,258 S sale lines · 107 other lines
SEC company submissionsOpen SEC filings ↗

Local ledger as of 2026-10-18. Mapping status is an audit field and does not erase SEC filing evidence.