jain.com
NN

Richard N Nottenburg

DirectorHeavy Seller (2026)Actively Reporting
Current role
Director · Applied Digital
Current holdings (from latest Form 3/4/5)
Applied Digital APLD: 102,128 shares ≈ $1.97M (0.03% of co.) (as of 2026-10-13)
Insider activity since 2023-04
Invested $0 (472,606 shares acquired)
↳ notional today: $9.10M
Divested $15.44M (711,337 shares sold)
↳ notional today: $13.69M
→ Net divested $15.44M
↳ net notional: ↓ $4.60M
Change since first tracked filing (not total holdings; see methodology). Prices as of 2026-10-19.

Richard Nottenburg, 71, has served as a director of Applied Digital Corporation since June 2021. He is Executive Chairman of NxBeam Inc., which designs and builds proprietary mmWave ICs and radio products for satellite and terrestrial communications. He also sits on the boards of Verint Systems Inc. (NASDAQ: VRNT), where he chairs the compensation committee, and Sequans Communications S.A. (NYSE: SQNS), where he serves on both the audit and compensation committees.

Nottenburg previously served as President and Chief Executive Officer of Sonus Networks, Inc. from 2008 to 2010. From 2004 to 2008, he held officer positions at Motorola, Inc., ultimately serving as Executive Vice President, Chief Strategy Officer and Chief Technology Officer.

He holds a BSEE from New York University - Polytechnic School of Engineering, a master's degree in electrical engineering from Colorado State University, and a PhD in electrical engineering from Ecole Polytechnique Fédérale de Lausanne.

Biography extracted from Applied Digital DEF 14A filed 2025-09-22 View cached copy (2026-08-31)Live source ↗

Roles

Contiguous filings for the same role are collapsed into a single tenure span. Click a row to see the underlying filings.

CompanyRoleTenureFilings
Applied DigitalDirector2022-04 → present (4y 6mo)21
Show 21 underlying filings
2026-10-13 · Applied Digital Form 4 filed 2026-10-15
View cached copy (2026-10-16)Live source ↗
2026-08-04 · Applied Digital Form 4 filed 2026-08-06
View cached copy (2026-08-30)Live source ↗
2026-04-28 · Applied Digital Form 4 filed 2026-04-30
View cached copy (2026-08-30)Live source ↗
2026-01-14 · Applied Digital Form 4 filed 2026-01-16
View cached copy (2026-08-30)Live source ↗
2025-11-09 · Applied Digital Form 4 filed 2025-11-10
View cached copy (2026-08-30)Live source ↗
2025-10-30 · Applied Digital Form 4 filed 2025-10-31
View cached copy (2026-09-13)Live source ↗
2025-10-24 · Applied Digital Form 4 filed 2025-10-28
View cached copy (2026-09-13)Live source ↗
2025-09-03 · Applied Digital Form 4 filed 2025-09-05
View cached copy (2026-09-13)Live source ↗
2025-08-08 · Applied Digital Form 4 filed 2025-08-11
View cached copy (2026-09-13)Live source ↗
2025-08-04 · Applied Digital Form 4 filed 2025-08-06
View cached copy (2026-09-13)Live source ↗
2025-01-17 · Applied Digital Form 4 filed 2025-01-22
View cached copy (2026-09-13)Live source ↗
2024-12-27 · Applied Digital Form 4 filed 2024-12-31
View cached copy (2026-09-13)Live source ↗
2024-11-27 · Applied Digital Form 4 filed 2024-11-29
View cached copy (2026-09-13)Live source ↗
2024-11-07 · Applied Digital Form 4 filed 2024-11-12
View cached copy (2026-09-13)Live source ↗
2024-10-17 · Applied Digital Form 4 filed 2024-10-21
View cached copy (2026-09-13)Live source ↗
2024-10-14 · Applied Digital Form 4 filed 2024-10-16
View cached copy (2026-09-13)Live source ↗
2024-05-13 · Applied Digital Form 4 filed 2024-05-14
View cached copy (2026-09-13)Live source ↗
2023-11-09 · Applied Digital Form 4 filed 2023-11-13
View cached copy (2026-09-13)Live source ↗
2023-08-08 · Applied Digital Form 4 filed 2023-08-09
View cached copy (2026-09-13)Live source ↗
2023-04-04 · Applied Digital Form 4 filed 2023-04-05
View cached copy (2026-09-13)Live source ↗
2022-04-12 · Applied Digital Form 3 filed 2022-04-12
View cached copy (2026-09-13)Live source ↗

Insider transactions

Totals for this person

BucketInvested (shares)Invested (USD)Divested (shares)Divested (USD)Net directionTxnsInvested @ last priceDivested @ last price
All time472,606$0711,337$15.44M↓ Divested $15.44M34$9.10M$13.69M
2026-$0403,462$11.42M↓ Divested $11.42M15$0$7.77M
202515,494$0113,686$2.47M↓ Divested $2.47M9$298.3K$2.19M
2024328,606$0179,369$1.44M↓ Divested $1.44M6$6.33M$3.45M
2026-Q1-$047,212$1.67M↓ Divested $1.67M4$0$908.8K
2026-Q2-$050,000$1.66M↓ Divested $1.66M4$0$962.5K
2026-Q3-$0150,000$4.67M↓ Divested $4.67M2$0$2.89M
2026-Q4-$0156,250$3.41M↓ Divested $3.41M5$0$3.01M

Invested = shares acquired (buys, grants, option exercises) — insider adding to the position. Divested = shares reduced (sells, dispositions, tax-withholding) — cash flowing TO the insider. Net direction shows which side wins on dollar terms in each bucket. % of holder's stake not yet computed (pending Form 3/4 holdings ingest). See methodology. The two @ last price columns restate the same share counts at the most recent share price we read (close of 2026-10-19); they are a valuation, not a cash flow, and they move every day the market does.

All transactions

DateCompanyKindSharesAmount (USD)Value @ last price
2026-10-13Applied DigitalOpen-market sale31,250$682,500$601.6K
2026-10-13Applied DigitalOpen-market sale31,250$682,500$601.6K
2026-10-13Applied DigitalOpen-market sale31,250$682,500$601.6K
2026-10-13Applied DigitalOpen-market sale31,250$682,500$601.6K
2026-10-13Applied DigitalOpen-market sale31,250$682,500$601.6K
2026-08-04Applied DigitalOpen-market sale75,000$2,336,250$1.44M
2026-08-04Applied DigitalOpen-market sale75,000$2,336,250$1.44M
2026-04-30Applied DigitalOpen-market sale12,500$432,375$240.6K
2026-04-30Applied DigitalOpen-market sale12,500$432,375$240.6K
2026-04-28Applied DigitalOpen-market sale12,500$400,000$240.6K
2026-04-28Applied DigitalOpen-market sale12,500$400,000$240.6K
2026-01-15Applied DigitalOpen-market sale12,000$425,400$231.0K
2026-01-15Applied DigitalOpen-market sale12,000$425,400$231.0K
2026-01-14Applied DigitalOpen-market sale11,606$409,460$223.4K
2026-01-14Applied DigitalOpen-market sale11,606$409,460$223.4K
2025-11-09Applied DigitalGrant / award / vesting7,747-$149.1K
2025-11-09Applied DigitalGrant / award / vesting7,747-$149.1K
2025-10-31Applied DigitalOpen-market sale9,375$336,656$180.5K
2025-10-30Applied DigitalOpen-market sale5,000$174,000$96.2K
2025-10-24Applied DigitalOpen-market sale34,375$1,142,281$661.7K
Show older transactions (14 more)
DateCompanyKindSharesAmount (USD)Value @ last price
2025-09-03Applied DigitalOpen-market sale20,000$305,200$385.0K
2025-08-08Applied DigitalOpen-market sale11,250$159,975$216.6K
2025-08-04Applied DigitalOpen-market sale13,686$171,075$263.5K
2025-01-17Applied DigitalOpen-market sale20,000$177,000$385.0K
2024-12-27Applied DigitalGrant / award / vesting28,606-$550.7K
2024-11-27Applied DigitalOpen-market sale50,000$460,000$962.5K
2024-11-07Applied DigitalOpen-market sale19,369$145,368$372.9K
2024-10-17Applied DigitalOpen-market sale30,000$240,300$577.5K
2024-10-14Applied DigitalOpen-market sale80,000$589,440$1.54M
2024-05-13Applied DigitalGrant / award / vesting300,000-$5.78M
2023-11-09Applied DigitalGrant / award / vesting33,685-$648.4K
2023-08-08Applied DigitalOpen-market sale14,820$114,707$285.3K
2023-04-04Applied DigitalGrant / award / vesting18,630-$358.6K
2023-04-04Applied DigitalGrant / award / vesting76,191-$1.47M