The Data / Insider buying The Data · SEC Form 4
Insider buying When several insiders at the same company buy their own stock on the open market inside a month, that's a pattern worth seeing — real money, disclosed under oath, from the people with the most information. We put each cluster next to the same name's Reddit chatter. The rarest read is the divergence: bought, not discussed — insiders in while the crowd isn't looking.
6 insiders bought Amrize Ltd this month — and Reddit isn't talking about it
Trailing 30 days · refreshed after each 4-hourly SEC sweep · data through 10 Sept 2026
Bought, not discussed Bought, not discussed — barely on Reddit (1 mention · 30d) · -11.4% since the first buy
6 insiders · largest single buy $638k · latest 2 Sept 2026
The 9 filings behind this 2 Sept 2026 · Jenisch Jan Philipp (Chairman & CEO) · $42k · SEC filing 2 Sept 2026 · Jenisch Jan Philipp (Chairman & CEO) · $638k · SEC filing 2 Sept 2026 · Jenisch Jan Philipp (Chairman & CEO) · $424k · SEC filing 2 Sept 2026 · Jenisch Jan Philipp (Chairman & CEO) · $85k · SEC filing 27 Aug 2026 · Gibson Dwight Audley Konrad (Director) · $244 · SEC filing 26 Aug 2026 · Sanche Jacques Wolf (Director) · $187k · SEC filing 25 Aug 2026 · Forrest Nollaig (Chief Mktg & Corp Affairs Off) · $66k · SEC filing 25 Aug 2026 · Singleton Denise R (Chief Legal Officer & Corp Sec) · $154k · SEC filing 17 Aug 2026 · Poletti Samuel Jonas (Chief Strategy & M&A Officer) · $118k · SEC filing Bought, not discussed — barely on Reddit (4 mentions · 30d) · -13.6% since the first buy
6 insiders · largest single buy $39k · latest 31 Aug 2026
The 8 filings behind this 31 Aug 2026 · Abrahami Avishai (Chief Executive Officer) · $39k · SEC filing 31 Aug 2026 · Abrahami Avishai (Chief Executive Officer) · $3k · SEC filing 31 Aug 2026 · Even-Haim Yaniv (CTO) · $19k · SEC filing 31 Aug 2026 · Meyer Shelly B (Chief People Officer) · $29k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +4% since the first buy
5 insiders · largest single buy $131k · latest 8 Sept 2026
The 17 filings behind this 8 Sept 2026 · SEIDMAN LAWRENCE B (Director) · $34k · SEC filing 8 Sept 2026 · SEIDMAN LAWRENCE B (Director) · $18k · SEC filing 8 Sept 2026 · SEIDMAN LAWRENCE B (Director) · $131k · SEC filing 8 Sept 2026 · SEIDMAN LAWRENCE B (Director) · $34k Bought, not discussed — barely on Reddit (6 mentions · 30d) · -33.6% since the first buy
4 insiders · largest single buy $349k · latest 20 Aug 2026
The 4 filings behind this 20 Aug 2026 · Brown Bruce (Director) · $45k · SEC filing 20 Aug 2026 · Donnally James O (Director) · $338k · SEC filing 20 Aug 2026 · Haskell Gregory W (Chief Executive Officer) · $76k · SEC filing 20 Aug 2026 · Otworth Michael (Executive Chairman) · $349k Bought, not discussed — barely on Reddit (2 mentions · 30d) · +12.3% since the first buy
4 insiders · largest single buy $202k · latest 28 Aug 2026
The 9 filings behind this 28 Aug 2026 · Sakellaris George P (Chief Executive Officer) · $66k · SEC filing 27 Aug 2026 · Sakellaris George P (Chief Executive Officer) · $91k · SEC filing 26 Aug 2026 · Sakellaris George P (Chief Executive Officer) · $22k · SEC filing 25 Aug 2026 · Sakellaris George P (Chief Executive Officer) · $20k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
4 insiders · largest single buy $47k · latest 8 Sept 2026
The 7 filings behind this 8 Sept 2026 · Horne William B. (Chief Executive Officer) · $11k · SEC filing 4 Sept 2026 · CRAGUN KENNETH S (Chief Financial Officer) · $19k · SEC filing 4 Sept 2026 · Horne William B. (Chief Executive Officer) · $20k · SEC filing 4 Sept 2026 · Nisser Henry Carl (President and General Counsel) · $47k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
4 insiders · largest single buy $30k · latest 18 Aug 2026
The 5 filings behind this 18 Aug 2026 · Kirby John J. (Interim CFO) · $25k · SEC filing 18 Aug 2026 · Rosenberg Noah L. (CMO) · $10k · SEC filing 17 Aug 2026 · Rieger Jayson (CEO and President) · $25k · SEC filing 17 Aug 2026 · Rosenberg Noah L. (CMO) · $21k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
4 insiders · largest single buy $20k · latest 17 Aug 2026
The 4 filings behind this 17 Aug 2026 · Seger Andrew M (Director) · $20k · SEC filing 17 Aug 2026 · KELLY JASON M (Director) · $2k · SEC filing 17 Aug 2026 · Bawel Zachary W (Director) · $20k · SEC filing 17 Aug 2026 · Ryan Christina M (Director) · $20k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
3 insiders · largest single buy $1.1M · latest 8 Sept 2026
The 8 filings behind this 8 Sept 2026 · Lappe Mark (Chief Executive Officer) · $1.1M · SEC filing 8 Sept 2026 · Lappe Mark (Chief Executive Officer) · $118k · SEC filing 8 Sept 2026 · Lappe Mark (Chief Executive Officer) · $54k · SEC filing 8 Sept 2026 · Lappe Mark (Chief Executive Officer) · $136k Bought, not discussed — barely on Reddit (1 mention · 30d) · +38.6% since the first buy
3 insiders · largest single buy $353k · latest 10 Sept 2026
The 16 filings behind this 10 Sept 2026 · Huffaker Michael (COO) · $133k · SEC filing 10 Sept 2026 · Meniane David (CEO) · $133k · SEC filing 9 Sept 2026 · Huffaker Michael (COO) · $353k · SEC filing 9 Sept 2026 · Meniane David (CEO) · $353k · SEC filing TISI · Team 3 insiders bought ~$576k of stock over 18 days Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
3 insiders · largest single buy $221k · latest 3 Sept 2026
The 7 filings behind this 3 Sept 2026 · Roeder Clinton William (Chief Financial Officer) · $221k · SEC filing 24 Aug 2026 · Horton Anthony R (Director) · $46k · SEC filing 21 Aug 2026 · Roeder Clinton William (Chief Financial Officer) · $183k · SEC filing 21 Aug 2026 · Roeder Clinton William (Chief Financial Officer) · $23k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
3 insiders · largest single buy $105k · latest 8 Sept 2026
The 5 filings behind this 8 Sept 2026 · McLaughlin Matthew F. (Chief Executive Officer) · $17k · SEC filing 4 Sept 2026 · McLaughlin Matthew F. (Chief Executive Officer) · $84k · SEC filing 28 Aug 2026 · LIVEK WILLIAM PAUL (Director) · $105k · SEC filing 26 Aug 2026 · McLaughlin Matthew F. (Chief Executive Officer) · $105k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
3 insiders · largest single buy $95k · latest 10 Sept 2026
The 7 filings behind this 10 Sept 2026 · Landesberg Stuart (Director) · $2k · SEC filing 9 Sept 2026 · Landesberg Stuart (Director) · $3k · SEC filing 4 Sept 2026 · Landesberg Stuart (Director) · $248 · SEC filing 2 Sept 2026 · Landesberg Stuart (Director) · $6k Bought, not discussed — barely on Reddit (1 mention · 30d) · +1026.6% since the first buy
3 insiders · largest single buy $15k · latest 24 Aug 2026
The 8 filings behind this 24 Aug 2026 · BRIGGS JAMES A (Chief Financial Officer) · $14k · SEC filing 24 Aug 2026 · Flynn James Peter (CEO) · $7k · SEC filing 21 Aug 2026 · Flynn James Peter (CEO) · $14k · SEC filing 20 Aug 2026 · Flynn James Peter (CEO) · $13k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
3 insiders · largest single buy $30k · latest 9 Sept 2026
The 3 filings behind this 9 Sept 2026 · Singh Savneet (Director) · $25k · SEC filing 27 Aug 2026 · Vaccaro John A (Director) · $20k · SEC filing 24 Aug 2026 · Hall Brenda M (Director) · $30k · SEC filing Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
3 insiders · largest single buy $29k · latest 24 Aug 2026
The 10 filings behind this 24 Aug 2026 · Genner Gareth Neville (Chief Executive Officer) · $6k · SEC filing 21 Aug 2026 · Genner Gareth Neville (Chief Executive Officer) · $3k · SEC filing 20 Aug 2026 · Genner Gareth Neville (Chief Executive Officer) · $29k · SEC filing 20 Aug 2026 · Francis Andrew Scott (Chief Technology Officer) · $5k Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
2 insiders · largest single buy $6.6M · latest 2 Sept 2026
The 5 filings behind this 2 Sept 2026 · DE ANGOITIA ALFONSO (Director) · $6.6M · SEC filing 1 Sept 2026 · MALONE JOHN C (10% Owner) · $590k · SEC filing 1 Sept 2026 · DE ANGOITIA ALFONSO (Director) · $363k · SEC filing 31 Aug 2026 · DE ANGOITIA ALFONSO (Director) · $3.1M · SEC filing Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
2 insiders · largest single buy $5.8M · latest 20 Aug 2026
The 2 filings behind this 20 Aug 2026 · Levine Jonathan L (Director) · $5.8M · SEC filing 20 Aug 2026 · Cohn Andrew M. (Director) · $1.2M · SEC filing Bought, not discussed — barely on Reddit (0 mentions · 30d) · +0% since the first buy
2 insiders · largest single buy $5.1M · latest 27 Aug 2026
The 6 filings behind this 27 Aug 2026 · COLLINGSWORTH JAMES M (Director) · $39k · SEC filing 26 Aug 2026 · COLLINGSWORTH JAMES M (Director) · $3k · SEC filing 25 Aug 2026 · COLLINGSWORTH JAMES M (Director) · $182k · SEC filing 25 Aug 2026 · RAYMOND JOHN T (Director) · $5.1M Bought, not discussed — barely on Reddit (1 mention · 30d) · +7.9% since the first buy
2 insiders · largest single buy $1.7M · latest 25 Aug 2026
The 6 filings behind this 25 Aug 2026 · THRC Holdings, LP (10% Owner) · $148k · SEC filing 25 Aug 2026 · Wilks Dan H. (10% Owner) · $148k · SEC filing 24 Aug 2026 · THRC Holdings, LP (10% Owner) · $1.7M · SEC filing 24 Aug 2026 · Wilks Dan H. (10% Owner) · $1.7M Bought, not discussed — barely on Reddit (0 mentions · 30d) · +12.9% since the first buy
2 insiders · largest single buy $1.6M · latest 18 Aug 2026
The 2 filings behind this 18 Aug 2026 · Young Richard Scott (President and CEO) · $1.6M · SEC filing 18 Aug 2026 · Savarie David Roger (EVP, General Counsel) · $7k · SEC filing Bought, not discussed — barely on Reddit (3 mentions · 30d) · -2.7% since the first buy
2 insiders · largest single buy $936k · latest 20 Aug 2026
The 2 filings behind this 20 Aug 2026 · Kurzius Lawrence Erik (Director) · $936k · SEC filing 18 Aug 2026 · O'Neill Shiv (GC AND CORP SEC) · $94k · SEC filing Buying clusters the crowd already sees Also on Reddit: 298 mentions · 30d · +4.8% since the first buy
30 insiders · largest single buy $75k · latest 7 Sept 2026
The 34 filings behind this How this board is built We read every insider filing (SEC Form 4 ) and keep only true open-market purchases — transaction code P. Stock awards, option exercises and gifts are excluded: they're compensation, not conviction. A company makes this board when, inside the trailing 30 days, at least 3 distinct insiders bought a combined $50k or more , or at least 2 insiders bought $1M or more . The Reddit line counts the same company's mentions across the subreddits we track over the same 30 days; under 10 mentions reads as "not discussed". Every cluster expands to the exact filings behind it, each linking to the SEC document — audit any row. Price context is deliberately absent until licensed end-of-day market data is wired in; we don't quote prices we don't have clean rights to. We can't see whether a buy ran under a pre-set 10b5-1 plan — filings don't always carry that flag in machine-readable form, so we don't claim it. What this is not: insiders can be early, wrong, or averaging down — a cluster is disclosed conviction, not a recommendation.
Filing data: SEC EDGAR Form 4. Crowd data: our own Reddit pipeline — method at /dashboard/methodology.