NETWORK APPLIANCE INC
Net SellingNTAP·US·🇺🇸 US
2%buys·98%sales
3,560 transactions$2.5MTotal buys·12 buys
$700.0MTotal sells·717 sells
4949 insiders
Last: Dec 10, 2025
| Date | Insider | Type | Value | |
|---|---|---|---|---|
| Dec 10, 25 | O'Callahan Elizabeth M | Sell | $117K | |
| Dec 1, 25 | De Lorenzo Daniel | Sell | $4K | |
| Nov 17, 25 | De Lorenzo Daniel | Sell | $35K | |
| Nov 15, 25 | Kurian George | Exercise | - | |
| Nov 15, 25 | Kurian George | Exercise | - | |
| Nov 15, 25 | Kurian George | Exercise | - | |
| Nov 15, 25 | O'Callahan Elizabeth M | Exercise | - | |
| Nov 15, 25 | O'Callahan Elizabeth M | Exercise | - | |
| Nov 15, 25 | O'Callahan Elizabeth M | Exercise | - | |
| Nov 15, 25 | CERNUDA CESAR | Exercise | - |
NETWORK APPLIANCE INC (NTAP) has recorded 3 560 insider transactions from 49 insiders. Total insider buying volume stands at $2.5M, while total selling volume is $700.0M. Overall insider sentiment is bearish (98% sales).
NETWORK APPLIANCE INC (NTAP) has recorded 3 560 insider operations, including 12 open-market purchases ($2.5M), 717 sales ($700.0M) and 2 831 other operations (stock option exercises, grants, tax dispositions, donations). The insider sentiment is bearish (98% sales).
Insider activity at NETWORK APPLIANCE INC is sustained, with operations recorded in 13 of the last 12 months — a sign of regular regulatory filings.
Among the most active insiders are WARMENHOVEN DANIEL J (CEO), Kurian George (CEO) & GEORGENS THOMAS (CEO), with respectively 682, 415, 261 transactions.
Across all 3 560 recorded transactions, the breakdown by type is: exercise (1837, 52%), sales (717, 20%), tax (436, 12%), grant (410, 12%), gift (90, 3%).
Data sourced from regulatory filings (SEC Form 4, AMF, BaFin, FI, and other European authorities).
NETWORK APPLIANCE INC has recorded 3 560 insider operations in total, including 12 open-market purchases ($2.5M), 717 sales ($700.0M) and 2 831 other operations (stock option exercises, grants, tax dispositions, donations). The most recent transaction was recorded on December 10, 2025.
Insiders at NETWORK APPLIANCE INC are currently net sellers, with 2% purchases and 98% sales across all reported transactions. Total buy volume is $2.5M versus $700.0M in sales, indicating a bearish insider sentiment.
InsiderLens tracks 49 insiders at NETWORK APPLIANCE INC (NTAP). WARMENHOVEN DANIEL J (CEO, 682 tx), Kurian George (CEO, 415 tx), GEORGENS THOMAS (CEO, 261 tx). Data is sourced from mandatory regulatory filings for persons with access to privileged information.
The insider signal for NTAP is bearish, based on a 2% buy ratio across 729 buy and sell transactions reported to financial regulators. Transactions from C-suite executives (CEO, CFO) and board members are generally considered the most informative signals.
Insider trading data for NETWORK APPLIANCE INC comes from official regulatory filings: SEC Form 4 (United States), AMF (France), BaFin (Germany), FI (Sweden), and other European financial authorities. These filings are mandatory for directors, officers, and holders of more than 10% of a company's shares. InsiderLens aggregates and normalizes this data for analysis.