CBRS Cerebras Systems, Inc.

NASDAQ
$191.34

Cerebras Systems, Inc. (CBRS) Insider Activity

What the officers, directors and large holders did with their own shares. Only open-market purchases and sales count toward the totals — grants, option exercises and shares withheld for tax are compensation mechanics, not decisions, and they're listed separately below.

30D 90D 6M 1Y
Insider signal Bearish Selling ran elevated versus CBRS's own trailing one-year pace, with 5% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 6 sellers in the last 90 days
Insiders buying
0
0 transactions
Insiders selling
6
288 transactions
Purchases
$0
0 shares
Sales
$295.6M
1,432,179 shares
Net activity
-$295.6M
purchases less sales

How much of that selling was preplanned? 5% planned / 95% discretionary

10b5-1 plan sales $15.7M 6 transactions · 68,268 shares
Discretionary sales $279.9M 282 transactions · 1,363,911 shares

Largest single sale: $27.4M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

No open-market insider purchase on record.

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
Lie Sean Chief Technology Officer Sell 53,460 $210.16 $11.2M 345,569 −13.4% of holding
Vassallo Steven 3 fills Director Sell 50,000 $210.30 $10.5M 200,860 −19.9% of holding
Feldman Andrew D. 16 fills CEO, President Sell 37,441 $210.46 $7.9M 53,194 −41.3% of holding
Feldman Andrew D. 13 fills CEO, President Sell 237,559 $199.27 $47.3M 210,859 −53% of holding
Lie Sean Chief Technology Officer Sell 16,293 $210.01 $3.4M 368,926 −4.2% of holding
Lie Sean 10 fills Chief Technology Officer Sell 710,247 $207.86 $147.6M 1,067,467 −40% of holding
Mallick Dhiraj 26 fills Chief Operating Officer Sell 38,889 $222.22 $8.6M 158,887 −19.7% of holding
Feldman Andrew D. 26 fills CEO, President Sell 26,644 $222.22 $5.9M 93,495 −22.2% of holding
Lie Sean 26 fills Chief Technology Officer Sell 21,257 $222.22 $4.7M 616,705 −3.3% of holding
Patel Yagnesh 25 fills Chief Accounting Officer Sell 4,574 $222.22 $1.0M 21,022 −17.9% of holding
Vishria Eric 6 fills Director Sell 10b5-1 68,268 $229.77 $15.7M 89,651 −43.2% of holding
Vassallo Steven 5 fills Director Sell 50,000 $218.18 $10.9M 93,518 −34.8% of holding
Mallick Dhiraj Chief Operating Officer Sell 10,000 $206.51 $2.1M None left
Mallick Dhiraj 18 fills Chief Operating Officer Sell 20,000 $173.73 $3.5M 19,800 −50.3% of holding
Patel Yagnesh 14 fills Chief Accounting Officer Sell 3,954 $174.03 $688.1K 3,854 −50.6% of holding
Mallick Dhiraj 39 fills Chief Operating Officer Sell 49,445 $173.48 $8.6M 69,121 −41.7% of holding
Feldman Andrew D. 12 fills CEO, President Sell 17,990 $173.06 $3.1M 13,962 −56.3% of holding
Lie Sean 16 fills Chief Technology Officer Sell 10,033 $170.07 $1.7M 7,499 −57.2% of holding
Patel Yagnesh 30 fills Chief Accounting Officer Sell 6,125 $171.66 $1.1M 9,972 −38.1% of holding

Form 4s are due within two business days of a transaction, so this is close to real time — unlike the quarterly 13F data on the Institutional tab. A single large sale often reflects a prearranged 10b5-1 plan rather than a fresh view, so read a pattern of sales rather than any one of them.