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

NetApp, Inc.

NTAP · Nasdaq · CIK 0001002047 · Technology · Software—Infrastructure

INSIDER SIGNAL

No active buy signal

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

83 Form 4 transaction lines observed in the same window
34 sales · 49 option, withholding, award, gift or other lines

Last qualifying purchase2025-03-28 · GUSTAFSSON ANDERS · $244.8K

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
Kurian GeorgeCEO
○○▼▼▼▼▼
O'Callahan Elizabeth MEVP, Chief Admin. Officer
○○▼▼
CERNUDA CESARPresident
○○▼
HELD GERALDDirector
○▼
Ahuja DeepakDirector
▼▼
NEVENS THOMAS MICHAELDirector
○▼
● Purchase▼ Sale○ Other

Showing the six most active owners; 8 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: 2025-03-28 · GUSTAFSSON ANDERS.

Recent Form 4 activity

0Purchases
43Sales
68Other Form 4 lines
63SEC filings · 365 days
BUYING0 qualifying P line(s) · 180 days
SELLING34 sale line(s) · context only
OTHER49 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
10,690,825
Previous report
10,146,420
Avg daily volume
2,428,847
Days to cover
4.4

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
2025-03-28GUSTAFSSON ANDERSPurchase (P)Common Shares2,724USD 89.87USD 244,797SEC filing ↗
2025-03-27GUSTAFSSON ANDERSPurchase (P)Common Shares2,800USD 91.00USD 254,800SEC filing ↗
2022-06-03BERRY MICHAEL JPurchase (P)Common Shares5,000USD 72.04USD 360,200SEC filing ↗
2021-03-05Anderson BradPurchase (P)Common Stock8,100USD 61.79USD 500,499SEC filing ↗
2020-12-17BERRY MICHAEL JPurchase (P)Common Stock15,000USD 63.89USD 958,350SEC filing ↗

Form 4 evidence

111 transaction lines in the latest 365-day window; 713 in local history.

DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-12O'Callahan Elizabeth MSale (S)Common Shares1,000USD 237.42USD 237,420SEC filing ↗
2026-10-02Palin CarrieSale (S)Common Shares5,000USD 216.43USD 1,082,150SEC filing ↗
2026-10-01Kurian GeorgeSale (S)Common Shares10,000USD 210.04USD 2,100,407SEC filing ↗
Show recent Form 4 evidence (30 grouped rows)
DateOwnerTypeSecuritySharesAvg. priceApprox. valueSource
2026-10-12O'Callahan Elizabeth MSale (S)Common Shares1,000USD 237.42USD 237,420SEC filing ↗
2026-10-02Palin CarrieSale (S)Common Shares5,000USD 216.43USD 1,082,150SEC filing ↗
2026-10-01Kurian GeorgeSale (S)Common Shares10,000USD 210.04USD 2,100,407SEC filing ↗
2026-10-01HELD GERALDSale (S)Common Shares5,757USD 212.00USD 1,220,484SEC filing ↗
2026-09-29Kurian GeorgeSale (S)Common Shares50,000USD 209.95USD 10,497,500SEC filing ↗
2026-09-24Kurian GeorgeSale (S)Common Shares37,000USD 199.95USD 7,398,150SEC filing ↗
2026-09-21Kurian GeorgeSale (S)Common Shares13,000USD 200.01USD 2,600,130SEC filing ↗
2026-09-21Ahuja DeepakSale (S)Common Shares3,450USD 200.00USD 690,000SEC filing ↗
2026-09-14Kurian GeorgeSale (S)Common Shares40,000USD 191.42USD 7,656,794SEC filing ↗
2026-09-14Ahuja DeepakSale (S)Common Shares3,526USD 194.04USD 684,185SEC filing ↗
2026-09-11NEVENS THOMAS MICHAELSale (S)Common Shares5,940USD 195.21USD 1,159,547SEC filing ↗
2026-09-10O'Callahan Elizabeth MSale (S)Common Shares1,000USD 184.74USD 184,740SEC filing ↗
2026-09-08Pelzer Francis J.Option exercise / conversion (M)Common Shares2,307USD —USD —SEC filing ↗
2026-09-08Palin CarrieOption exercise / conversion (M)Common Shares2,307USD —USD —SEC filing ↗
2026-09-08NEVENS THOMAS MICHAELOption exercise / conversion (M)Common Shares2,914USD —USD —SEC filing ↗
2026-09-08KERR DEBORAHOption exercise / conversion (M)Common Shares2,307USD —USD —SEC filing ↗
2026-09-08HELD GERALDOption exercise / conversion (M)Common Shares2,307USD —USD —SEC filing ↗
2026-09-08GUSTAFSSON ANDERSOption exercise / conversion (M)Common Shares2,307USD —USD —SEC filing ↗
2026-09-08Fipps PaulOption exercise / conversion (M)Common Shares2,646USD —USD —SEC filing ↗
2026-08-17CERNUDA CESARSale (S)Common Shares2,608USD 204.48USD 533,290SEC filing ↗
2026-08-15O'Callahan Elizabeth MOption exercise / conversion (M)Common Shares2,908USD —USD —SEC filing ↗
2026-08-15O'Callahan Elizabeth MTax withholding (F)Common Shares1,468USD 204.99USD 300,925SEC filing ↗
2026-08-15Nair SyamOption exercise / conversion (M)Common Shares42,739USD —USD —SEC filing ↗
2026-08-15Nair SyamTax withholding (F)Common Shares16,818USD 204.99USD 3,447,522SEC filing ↗
2026-08-15Kurian GeorgeOption exercise / conversion (M)Common Shares7,565USD —USD —SEC filing ↗
2026-08-15Kurian GeorgeTax withholding (F)Common Shares3,817USD 204.99USD 782,447SEC filing ↗
2026-08-15JABRE WISSAM GOption exercise / conversion (M)Common Shares1,356USD —USD —SEC filing ↗
2026-08-15JABRE WISSAM GTax withholding (F)Common Shares684USD 204.99USD 140,213SEC filing ↗
2026-08-15De Lorenzo DanielOption exercise / conversion (M)Common Shares743USD —USD —SEC filing ↗
2026-08-15De Lorenzo DanielTax withholding (F)Common Shares266USD 204.99USD 54,527SEC 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 · —
TickerNTAP
CIK0001002047
SectorTechnology
IndustrySoftware—Infrastructure Yahoo Finance
SEC SIC3572 Computer Storage Devices
ExchangeNasdaq

Data coverage

Local Form 4 history713 transaction lines from 2020-01-15 to 2026-10-12
6 P purchase lines · 227 S sale lines · 480 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.