Alex Rivera
Breaking News Editor
Breaking News Editor at 13F Insight. First to report on major SEC filings, institutional moves, and regulatory developments.
A note from Alex
Hey, I'm Alex. I spent three and a half years at Bloomberg writing breaking-news pieces about the kind of trades that move tickers in after-hours, and what I learned is that the news cycle moves a lot faster than the explanations do.
That's the gap I'm here to close. When a major insider files a Form 4 at 4:31pm, you should know about it by 5:00 — not in tomorrow's morning newsletter. And you should know what's actually new about it, not just that it happened.
I'll keep my pieces short, my numbers exact, and my opinions out of the lede. If something I wrote ages badly, I'll say so on the record.
Articles by Alex Rivera (680)
- News
International Paper Insider Timothy Nicholls Has Sold $17.4M Over 82 Transactions
Timothy Nicholls of International Paper sold $17.4M across 82 insider transactions. His 129K remaining shares are worth ~$6M as IP navigates the Smurfit WestRock combination.
- News
IBM CFO James Kavanaugh Has Filed 751 Insider Transactions — $20.7M in Career Sales
IBM's CFO James Kavanaugh has executed 751 insider transactions totaling $20.7M in career sales with zero purchases. February 2026 RSU vests continue the steady pattern.
- News
Rambus CEO Luc Seraphin Has Sold $21M in RMBS Stock — 10,000 Shares Per Week Like Clockwork
Rambus CEO Luc Seraphin has sold $21M across 133 transactions with a clockwork pattern: 10,000 shares every week in April 2025 at $45-$59/share, while maintaining a 319K-share position.
- News
Chevron Insider Eimear Bonner Sold $25.6M in CVX Stock — Exits to Zero Shares
Eimear Bonner of Chevron has sold $25.6M across 80 insider transactions, with a January 2026 exercise-and-sell of $5.6M completing her exit to zero shares remaining.
- News
Carrier Global CEO David Gitlin Sold $30.1M Then Bought $1M — A Rare CEO Reversal
Carrier Global CEO David Gitlin sold $30.1M in CARR stock, including a $19.2M single-day sale. Then in November 2025, he made a rare $1M open-market purchase at $52.62/share.
- News
Sarepta's Former COO David Howton Sold $31.2M — Now Selling SLDB Stock at $6/Share
David Howton, former COO of Sarepta Therapeutics, sold $31.2M in SRPT stock. Now at Solid Biosciences, his recent filings show SLDB sales at just $5.82-$6.44/share.
- News
Former United Airlines CEO Oscar Munoz Sold $34.5M in UAL — Now Collecting CRM and ACHR Board Equity
Former United Airlines CEO Oscar Munoz sold $34.5M in UAL stock across 216 transactions. Now a board member at Salesforce and Archer Aviation, his UAL position is at zero shares.
- News
Freshworks CFO/COO Tyler Sloat Has Sold $37.8M — Then Bought $2M in a Rare Insider Purchase
Freshworks CFO and COO Tyler Sloat sold $37.8M in FRSH stock, then reversed course with a $2M open-market purchase in November 2025 — a rare insider buy signal at a beaten-down SaaS stock.
- News
Lululemon Insider Celeste Burgoyne Has Sold $39.9M in LULU Stock Over 171 Transactions
Celeste Burgoyne of lululemon has sold $39.9M across 171 insider transactions. December 2025 sales of $2.8M at ~$204/share came after the stock fell 50% from its 2023 highs.
- News
Baker Hughes CEO Lorenzo Simonelli Has Sold $47.9M in BKR Stock — $23.4M in a Single Day
Baker Hughes CEO Lorenzo Simonelli sold $47.9M in BKR stock across 113 transactions, including a $23.4M block sale in July 2025. Recent February 2026 filings show 55K-share option exercises.
- News
Mastercard CFO Sachin Mehra Has Sold $52.1M in MA Stock — Also Collecting CRM Board Equity
Mastercard CFO Sachin Mehra has sold $52.1M across 129 insider transactions with zero purchases. Recent activity shows him simultaneously vesting Salesforce board RSUs.
- News
Goldman Sachs' Gary Cohn Sold $82.2M in GS Stock — Now Collecting IBM Board Equity
Former Goldman Sachs president Gary Cohn sold $82.2M in GS stock across 187 transactions. Now a Vice Chairman collecting IBM board grants, his GS position is down to 4,491 shares.
- News
American Express Insider Douglas Buckminster Has Sold $83.3M — Exits to Zero Shares
Douglas Buckminster of American Express has sold $83.3M across 127 insider transactions, exercising and selling his way to a zero-share position.
- News
Buckle CEO Dennis Nelson Has Sold $108.6M in BKE Stock Over 420 Transactions
Dennis Nelson, longtime CEO of The Buckle, has executed 420 insider transactions totaling $108.6M in career sales with zero purchases, continuing steady selling into mid-2025.
- News
Agilent Technologies' Michael McMullen Has Sold $138.5M in Stock Over 266 Transactions
Michael McMullen, Director at Agilent Technologies, has executed 266 insider transactions totaling $138.5M in career stock sales with zero purchases, including a $7.8M single-day sale at $150/share.
- News
Williams-Sonoma CEO Laura Alber Has Sold $204.5M in WSM Stock Over 641 Transactions
Williams-Sonoma CEO Laura Alber has executed 641 insider transactions totaling $204.5M in career stock sales, with $7.2M sold in January 2026 alone at prices above $205/share.
- News
WEC Energy's Gale Klappa Has Sold $295M in Stock Across 640 Transactions
WEC Energy Group executive Gale Klappa has executed 640 insider transactions totaling $295M in career sales, with a systematic exercise-and-sell pattern continuing into February 2026.
- News
C3.ai Chairman Thomas Siebel Has Sold $396 Million Across Two Tech Companies Over 565 Transactions
Thomas Siebel, the billionaire who built and sold Siebel Systems to Oracle, has now filed 565 insider transactions totaling $396 million — including recent exercise-and-sell activity at C3.ai in early 2026.
- News
CrowdStrike CEO George Kurtz Has Sold $702 Million in CRWD Stock Across 943 Transactions
George Kurtz, co-founder and CEO of CrowdStrike, has filed 943 insider transactions totaling $702 million in CRWD sales — most recently in February 2026 at prices above $413 per share.
- News
Murray Stahl Has Filed 6,612 Insider Transactions at RENN Fund — Almost All Tiny Purchases
Murray Stahl has filed 6,612 Form 4s for RENN Fund, buying $2.3 million of RCG stock across thousands of micro-purchases — often 18 to 360 shares at $2.85 each. His total career sales: $57,200.