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Desk brief

AI Sep 17

Corporate insiders dominated a heavily sell-skewed session, while seven-day cluster selling stood out across several stocks.

Selling dominated the session — The session logged 1,897 filings: 247 buys worth about $380.4M versus 1,650 sells worth about $2.6B. Corporate insiders accounted for 1,880 filings across 471 tickers, compared with 17 congressional filings.
Multiple stocks saw insider clusters — Cluster selling was detected in ZS, where 6 insiders sold about $4.9M, and CRWV, where 4 insiders sold about $72.9M. Other multi-insider selling appeared in IOT, EBAY, TALO, AI, AMAL and NTNX. ZS CRWV IOT EBAY TALO AI AMAL NTNX
XBP drew concentrated buying — XBP was the notable cluster-buying name: 5 insiders bought about $2.4M. Jonovic Andrej was also flagged for an executive purchase of about $89.1K in XBP. XBP Jonovic Andrej
TYRA purchase led buying scale — Over the past 14 days, Ra Capital Management, L.p. made the largest reported purchase, buying about $200.0M of TYRA. RSG led the bought-value list at about $572.7M across 2 filers, while APGE led sold value at about $1.1B across 9 filers. TYRA RSG APGE L.p. Ra Capital Management

The tape to monitor was the contrast between concentrated XBP buying and the broader cluster selling in ZS, CRWV, EBAY, TALO and AMAL. The 14-day totals remained heavily sell-skewed, with about $8.3B sold versus $1.5B bought.

AI-generated from the filings on this page — not financial advice.

Filings · Sep 17
1923

Latest 1 day ago

Disclosed buying · 14d
$1.46B

1143 purchases across 1487 tickers

Disclosed selling · 14d
$8.28B

6840 sales and dispositions

Tape lean · 14d
Heavy selling

Largest buy: TYRA $199.99M

Disclosure flow

Value filed per session · last 60 days

Where the money went

By disclosed value · 14 days · click a bar for the filings
Most bought
Most sold

Signals

Fixed rules over the last 21 days — see each card for why it fired
Cluster selling TVTX
8 insiders sold $66.34M 1 day ago
Cluster selling NTRA
5 insiders sold $62.97M 1 day ago
Cluster buying TENX
4 insiders bought $3.12M 1 day ago
Cluster selling RBRK
3 insiders sold $7.05M 1 day ago
Cluster selling PAYS
4 insiders sold $3.73M 1 day ago
Cluster selling PL
3 insiders sold $6.26M 1 day ago
Cluster selling ORCL
6 insiders sold $14.48M 1 day ago
Cluster selling NTNX
4 insiders sold $28.75M 1 day ago
Cluster selling CRWD
4 insiders sold $75.54M 1 day ago
Cluster selling ZS
6 insiders sold $4.93M 1 day ago
Cluster selling CRWV
4 insiders sold $110.93M 1 day ago
Cluster selling IOT
4 insiders sold $4.92M 1 day ago

Disclosure sentiment

Who is buying against who is selling · 90 days · −100 to +100
Accumulation
AMR 26 buys · 0 sells +100
AAT 18 buys · 0 sells +100
RCG 55 buys · 0 sells +100
SUJA 22 buys · 0 sells +100
DLHC 45 buys · 0 sells +100
UUU 32 buys · 0 sells +100
Distribution
DELL 0 buys · 936 sells -100
UTHR 0 buys · 517 sells -100
CRWV 0 buys · 795 sells -100
SE 0 buys · 516 sells -100
STX 0 buys · 309 sells -100
CHYM 0 buys · 317 sells -100

Bullish and bearish sectors

Net disclosed value · 30 days

Buying extends right, selling left. A company in more than one industry counts in each.

4,994 filings

Official insider and political disclosure transactions
Filed Transaction Issuer / asset Reporting person Qty / price Value Source Actions
Sep 17, 2026 2-day lag Sale Sep 15, 2026 Class A Common Stock Siebel Thomas M Insider CEO And Chairman Of The Board 282,001 shares @ $10.9 Direct ownership $3.07M SEC Form 4
Sep 17, 2026 1-day lag Buy Sep 16, 2026 Common Stock O'dowd William Iv Insider Chief Executive Officer 4,452 shares @ $1.54 Direct ownership $6.86K SEC Form 4
Sep 17, 2026 Same-day filing Exercise Sep 17, 2026 Stock Option on Common Stock Brille Brian J Insider See Remarks 400,000 shares @ $0 Direct ownership $0 SEC Form 4
Same filing as the row above Exercise Sep 17, 2026 Common Stock 400,000 shares @ $2.44 Direct ownership $976K
Same filing as the row above Sale Sep 17, 2026 400,000 shares @ $30.33 Direct ownership $12.13M
Sep 17, 2026 2-day lag Exercise Sep 15, 2026 Class A-1 Common Stock Kozlik Christen Insider Chief Accounting Officer 1,875 shares @ $0 Direct ownership $0 SEC Form 4
Same filing as the row above Sale Sep 15, 2026 550 shares @ $11.55 Direct ownership $6.35K
Same filing as the row above Exercise Sep 15, 2026 Restricted Stock Units (RSU) on Class A-1 Common Stock 1,875 shares @ $11.55 Direct ownership $21.66K
Sep 17, 2026 Same-day filing Gift Sep 17, 2026 Class A-1 Common Stock Rubenstein Andrew H. Insider Director / Ten Percent Owner / Other 1,000 shares @ $0 Direct ownership $0 SEC Form 4
Same filing as the row above Gift Sep 15, 2026 230 shares @ $0 Direct ownership $0
Sep 17, 2026 1-day lag Buy Sep 16, 2026 Common Stock Kayyem Jon Faiz Insider Director 5,000 shares @ $100 Indirect ownership $500K SEC Form 4
Sep 17, 2026 2-day lag Sale Sep 15, 2026 Class C Common Stock Silver Lake Partners V De (aiv), ... Insider Director / Ten Percent Owner 864 shares @ $563.66 Indirect ownership $487K SEC Form 4
Same filing as the row above Sale Sep 15, 2026 1,302 shares @ $545.74 Indirect ownership $710.55K
Same filing as the row above Sale Sep 15, 2026 548 shares @ $548.1 Indirect ownership $300.36K
Same filing as the row above Sale Sep 15, 2026 1,830 shares @ $553.54 Indirect ownership $1.01M
Same filing as the row above Exercise Sep 15, 2026 38,740 shares Indirect ownership Not reported
Same filing as the row above Sale Sep 15, 2026 689 shares @ $561.36 Indirect ownership $386.78K
Same filing as the row above Sale Sep 15, 2026 340 shares @ $551.58 Indirect ownership $187.54K
Same filing as the row above Sale Sep 15, 2026 3,638 shares @ $556.39 Indirect ownership $2.02M
Same filing as the row above Sale Sep 15, 2026 2,453 shares @ $557.38 Indirect ownership $1.37M
Same filing as the row above Exercise Sep 15, 2026 Class B Common Stock on Class C Common Stock 38,740 shares @ $0 Indirect ownership $0
Same filing as the row above Sale Sep 15, 2026 Class C Common Stock 391 shares @ $548.58 Indirect ownership $214.49K
Same filing as the row above Sale Sep 15, 2026 401 shares @ $564.46 Indirect ownership $226.35K
Same filing as the row above Sale Sep 15, 2026 261 shares @ $558.3 Indirect ownership $145.72K
Same filing as the row above Sale Sep 15, 2026 4,073 shares @ $555.46 Indirect ownership $2.26M
Siebel Thomas M Insider CEO And Chairman Of The Board
Sale
Calculated transaction value
$3.07M
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
282,001 shares @ $10.9
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$710.55K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
1,302 shares @ $545.74
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$300.36K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
548 shares @ $548.1
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$1.01M
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
1,830 shares @ $553.54
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$386.78K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
689 shares @ $561.36
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$187.54K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
340 shares @ $551.58
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$2.02M
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
3,638 shares @ $556.39
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$1.37M
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
2,453 shares @ $557.38
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$214.49K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
391 shares @ $548.58
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$226.35K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
401 shares @ $564.46
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$145.72K
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
261 shares @ $558.3
Silver Lake Partners V De (aiv), L.p. Insider Director / Ten Percent Owner
Sale
Calculated transaction value
$2.26M
Traded
Sep 15, 2026
Filed
Sep 17, 2026
Quantity / price
4,073 shares @ $555.46