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

FIRST SOLAR, INC.

FSLR · Nasdaq · CIK 0001274494 · Technology · Solar

INSIDER SIGNAL

No active buy signal

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

101 Form 4 transaction lines observed in the same window
67 sales · 34 option, withholding, award, gift or other lines

Last qualifying purchase2023-03-07 · Wright Norman L. · $99.9K

WHY NO ACTIVE SIGNAL?

Purchase activityNone
Recent buyingNone
Recent salesHigh
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
Widmar Mark RChief Executive Officer
▼▼▼▼▼
Sloan Samantha L.EVP, Corporate Affairs
○▼○○
Gloeckler MarkusChief Technology Officer
▼▼▼▼
Verma Kuntal KumarChief Manufacturing Officer
▼▼▼▼
Ahearn Michael JDirector
○○○
George Anita M.Director
○○○
● Purchase▼ Sale○ Other

Showing the six most active owners; 12 additional owner(s) remain in Form 4 evidence.

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: 2023-03-07 · Wright Norman L..

Recent Form 4 activity

0Purchases
164Sales
111Other Form 4 lines
98SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING67 sale line(s) · context only
OTHER34 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
11,126,598
Previous report
10,522,255
Avg daily volume
2,740,451
Days to cover
4.1

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
2023-03-07Wright Norman L.Purchase (P)Common Stock465USD 214.87USD 99,915SEC filing ↗
2022-08-05Buehler Patrick JamesPurchase (P)Common Stock489USD 102.10USD 49,927SEC filing ↗
2022-08-05ANTOUN GEORGESPurchase (P)Common Stock9,946USD 100.53USD 999,871SEC filing ↗
2022-08-01Bradley Alexander R.Purchase (P)Common Stock1,990USD 100.56USD 200,114SEC filing ↗

Form 4 evidence

275 transaction lines in the latest 365-day window; 1,397 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Gloeckler MarkusSale (S)Common Stock800USD 174.00USD 139,200SEC filing ↗
2026-09-30Wright Norman L.Award / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30Sweeney Michael TAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-01Gloeckler MarkusSale (S)Common Stock800USD 174.00USD 139,200SEC filing ↗
2026-09-30Wright Norman L.Award / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30Sweeney Michael TAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30STEBBINS PAUL HAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30RENDUCHINTALA VENKATA S MAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30POST WILLIAM JAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30MORGAN CURTIS AAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30KRO LISA AAward / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30George Anita M.Award / grant (A)Common Stock300USD 0.00USD 0SEC filing ↗
2026-09-30Ahearn Michael JAward / grant (A)Common Stock422USD 0.00USD 0SEC filing ↗
2026-09-01Sloan Samantha L.Option exercise / conversion (M)Common Stock469USD 0.00USD 0SEC filing ↗
2026-09-01Sloan Samantha L.Tax withholding (F)Common Stock134USD 199.65USD 26,753SEC filing ↗
2026-09-01Gloeckler MarkusSale (S)Common Stock800USD 200.00USD 160,000SEC filing ↗
2026-08-17Sloan Samantha L.Sale (S)Common Stock127USD 222.95USD 28,315SEC filing ↗
2026-08-14Sloan Samantha L.Option exercise / conversion (M)Common Stock437USD 0.00USD 0SEC filing ↗
2026-08-11Dymbort Jason E.Sale (S)Common Stock3,700USD 249.38USD 922,706SEC filing ↗
2026-08-04Gloeckler MarkusSale (S)Common Stock829USD 248.00USD 205,592SEC filing ↗
2026-08-04Ahearn Michael JGift (G)Common Stock44,584USD —USD —SEC filing ↗
2026-08-03Koralewski MichaelSale (S)Common Stock7,000USD 221.51USD 1,550,570SEC filing ↗
2026-08-03Gloeckler MarkusSale (S)Common Stock3,425USD 218.95USD 749,902SEC filing ↗
2026-06-30Wright Norman L.Award / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30Sweeney Michael TAward / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30STEBBINS PAUL HAward / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30RENDUCHINTALA VENKATA S MAward / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30POST WILLIAM JAward / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30MORGAN CURTIS AAward / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30KRO LISA AAward / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30George Anita M.Tax withholding (F)Common Stock67USD 235.96USD 15,809SEC filing ↗
2026-06-30George Anita M.Award / grant (A)Common Stock223USD 0.00USD 0SEC filing ↗
2026-06-30Ahearn Michael JAward / grant (A)Common Stock313USD 0.00USD 0SEC 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 · —
TickerFSLR
CIK0001274494
SectorTechnology
IndustrySolar Yahoo Finance
SEC SIC3674 Semiconductors & Related Devices
ExchangeNasdaq

Data coverage

Local Form 4 history1,397 transaction lines from 2020-01-31 to 2026-10-01
4 P purchase lines · 469 S sale lines · 924 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.