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 (665)
- News
The Founder of Charles Schwab Just Sold $70M of His Own Stock. Wall Street Still Says Buy.
Charles R. Schwab exercised options at $26 and sold at $103–106 in a two-week sprint right after record Q4 earnings. Co-Chairman Bettinger is selling too — but analysts see 30% upside.
- News
Saba Capital Is Dumping BlackRock Funds and Buying Into Germany — Here’s What the $76.8M Activist Is Doing Now
Boaz Weinstein’s hedge fund sold $5.8M of ECAT and PDX in two weeks while quietly accumulating New Germany Fund shares — a shift that signals new activist targets in 2026.
- News
Braze, Inc. insider flow update: Magnuson William's post-2026-01-30 transaction pattern
Magnuson William's BRZE insider record stands at $7.1M cumulative sales (latest filing 2026-01-30); focus on sequence, transaction-code mix, and ownership trend over time.
- News
Wiseman Susan and BRZE: what the latest Form 4 cycle says about ownership trend
Wiseman Susan's BRZE insider record stands at $13.5M cumulative sales (latest filing 2026-01-30); focus on sequence, transaction-code mix, and ownership trend over time.
- News
After 2026-01-30, Winkles Isabelle's BRZE filings point to a sequence worth tracking
Winkles Isabelle's BRZE insider record stands at $17.5M cumulative sales (latest filing 2026-01-30); focus on sequence, transaction-code mix, and ownership trend over time.
- News
Hyman Jonathan's latest BRZE filing window: code mix, cadence, and remaining ownership
Hyman Jonathan's BRZE insider record stands at $22.4M cumulative sales (latest filing 2026-01-30); focus on sequence, transaction-code mix, and ownership trend over time.
- News
After 2026-01-30, Bender Jeremy's DAWN filings point to a sequence worth tracking
Bender Jeremy's DAWN insider record stands at $5.2M cumulative sales (latest filing 2026-01-30); focus on sequence, transaction-code mix, and ownership trend over time.
- News
UMBF insider tape update: KEMPER J MARINER now at $91.2M cumulative sales, but timing is key
KEMPER J MARINER's UMBF insider record stands at $91.2M cumulative sales (latest filing 2026-02-02); focus on sequence, transaction-code mix, and ownership trend over time.
- News
TRUSCOTT WILLIAM F's latest AMP filing window: code mix, cadence, and remaining ownership
TRUSCOTT WILLIAM F's AMP insider record stands at $118.1M cumulative sales (latest filing 2026-02-02); focus on sequence, transaction-code mix, and ownership trend over time.
- News
KNX insider tape update: KNIGHT KEVIN P now at $193.8M cumulative sales, but timing is key
KNIGHT KEVIN P's KNX insider record stands at $193.8M cumulative sales (latest filing 2026-01-31); focus on sequence, transaction-code mix, and ownership trend over time.
- News
WILLIAMS SONOMA INC insider flow update: ALBER LAURA's post-2026-02-01 transaction pattern
ALBER LAURA's WSM insider record stands at $204.5M cumulative sales (latest filing 2026-02-01); focus on sequence, transaction-code mix, and ownership trend over time.
- News
Inside the latest YELP Form 4 cluster from Stoppelman Jeremy: what changed and what matters next
Stoppelman Jeremy's YELP insider record stands at $219.4M cumulative sales (latest filing 2026-02-02); focus on sequence, transaction-code mix, and ownership trend over time.
- News
CURTIN TERRENCE R and TEL: what the latest Form 4 cycle says about ownership trend
CURTIN TERRENCE R's TEL insider record stands at $264.8M cumulative sales (latest filing 2026-01-30); focus on sequence, transaction-code mix, and ownership trend over time.
- News
After 2026-02-01, KLAPPA GALE E's WEC filings point to a sequence worth tracking
KLAPPA GALE E's WEC insider record stands at $295.1M cumulative sales (latest filing 2026-02-01); focus on sequence, transaction-code mix, and ownership trend over time.
- News
Inside the latest CRWD Form 4 cluster from Kurtz George: what changed and what matters next
Kurtz George's CRWD insider record stands at $702.2M cumulative sales (latest filing 2026-02-02); focus on sequence, transaction-code mix, and ownership trend over time.
- News
UTHR filings after 2025-12-19: ROTHBLATT MARTINE A's insider sequence beyond the $1.05B headline
ROTHBLATT MARTINE A's UTHR insider record stands at $1.05B cumulative sales (latest filing 2025-12-19); focus on sequence, transaction-code mix, and ownership trend over time.
- News
Xie Michael and FTNT: what the latest Form 4 cycle says about ownership trend
Xie Michael's FTNT insider record stands at $5.84B cumulative sales (latest filing 2026-02-02); focus on sequence, transaction-code mix, and ownership trend over time.
- News
After 2026-02-02, Cooke Shane's ALKS filings point to a sequence worth tracking
Cooke Shane's ALKS insider record stands at $36.1M cumulative sales (latest filing 2026-02-02); focus on sequence, transaction-code mix, and ownership trend over time.
- News
CVX insider tape update: BONNER EIMEAR P now at $25.6M cumulative sales, but timing is key
BONNER EIMEAR P's CVX insider record stands at $25.6M cumulative sales (latest filing 2026-02-01); focus on sequence, transaction-code mix, and ownership trend over time.
- News
RBRK insider tape update: Miller Raymond T. now at $0 cumulative sales, but timing is key
Miller Raymond T.'s RBRK insider record stands at $0 cumulative sales (latest filing 2020-09-30); focus on sequence, transaction-code mix, and ownership trend over time.