ONT Onterris, Inc.

NYSE
$17.58

Onterris, Inc. (ONT) 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 In line Selling ran in line with ONT's own trailing one-year pace, with 0% of sale value under a prearranged plan.
Cluster activity 0 buyers in the last 30 days 0 buyers in the last 90 days 0 sellers in the last 90 days
Insiders buying
2
3 transactions
Insiders selling
4
12 transactions
Purchases
$610.0K
36,535 shares
Sales
$8.0M
300,162 shares
Net activity
-$7.4M
purchases less sales

How much of that selling was preplanned? 0% planned / 100% discretionary

10b5-1 plan sales $6.0K 1 transaction · 200 shares
Discretionary sales $8.0M 11 transactions · 299,962 shares

Largest single sale: $1.7M.

Where they traded

Buy Sell Dot area is proportional to transaction value.

Last open-market purchase: June 5, 2026 , by GRAHAM PETER .

Recent open-market activity

Date Insider Role Action Shares Price Value Held after
GRAHAM PETER Director Buy 25,140 $17.19 $432.2K 256,689
GRAHAM PETER Director Buy 4,860 $15.94 $77.5K 231,549
Dicks Allan Chief Financial Officer Buy 6,535 $15.36 $100.4K 218,178
Manthripragada Vijay President & CEO Sell 46,121 $25.41 $1.2M 236,788 −16.3% of holding
Revuelta Jose Chief Strategy Officer Sell 7,858 $27.00 $212.2K 269,282 −2.8% of holding
Revuelta Jose Chief Strategy Officer Sell 42,668 $27.56 $1.2M 269,282 −13.7% of holding
Revuelta Jose Chief Strategy Officer Sell 60,000 $28.00 $1.7M 269,282 −18.2% of holding
Afsari Nasym General Counsel and Secretary Sell 43,348 $28.37 $1.2M 204,878 −17.5% of holding
PRESBY J THOMAS 2 fills Director Sell 10,000 $28.87 $288.7K 63,073 −13.7% of holding
Afsari Nasym General Counsel and Secretary Sell 10b5-1 200 $30.00 $6.0K 204,878 −0.1% of holding
Manthripragada Vijay President & CEO Sell 44,984 $24.07 $1.1M 316,637 −12.4% of holding
Manthripragada Vijay 3 fills President & CEO Sell 44,983 $24.74 $1.1M 321,821 −12.3% 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.