SEC Form 4
Primoris Services Corporation (PRIM) insider trading
In the 12 months to Oct 23, 2026, 5 PRIM insiders reported open-market sales of $9.7M across 6 filings; 2 insiders bought $1.0M.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $9.7M
- 6 filings · 5 insiders
- Open-market purchases
- $1.0M
- 5 filings
Who traded PRIM, and when
- Purchase
- Sale
PRIM daily close from Oct 23, 2025 to Oct 23, 2026, between $65.03 and $202.92, last $65.03. 6 sale and 5 purchase filings by 7 insiders, marked at their filing dates. John M. Perisich, CHIEF LEGAL AND ADMIN OFFICER: sold $3.8M across 1 filing, first filed May 29, 2026, last May 29, 2026. David Lee King, INTERIM PRESIDENT & CEO → Director: sold $2.8M across 2 filings, first filed Nov 12, 2025, last May 28, 2026. Patricia K. Wagner, Director: sold $1.7M across 1 filing, first filed Nov 12, 2025, last Nov 12, 2025. John P. Schauerman, Director: sold $1.1M across 1 filing, first filed Dec 15, 2025, last Dec 15, 2025. Koti Vadlamudi, PRESIDENT & CEO: bought $1.0M across 1 filing, first filed Jun 1, 2026, last Jun 1, 2026. Carla S. Mashinski, Director: sold $281.4K across 1 filing, first filed Dec 9, 2025, last Dec 9, 2025. Terry D. Mccallister, Director: bought $6.7K across 4 filings, first filed Jan 16, 2026, last Oct 16, 2026.
Largest mark · tap a row for others
John M. Perisich · CHIEF LEGAL AND ADMIN OFFICER
Sale $3,798,225
29,707 shares at $127.86 avg
Filed May 29, 2026 · traded May 28
Close on filing date $125.78
John M. Perisich · CHIEF LEGAL AND ADMIN OFFICER
CHIEF LEGAL AND ADMIN OFFICER
$3.8M soldDavid Lee King · INTERIM PRESIDENT & CEO → Director
INTERIM PRESIDENT & CEO → Director
$2.8M soldPatricia K. Wagner · Director
Director
$1.7M soldJohn P. Schauerman · Director
Director
$1.1M soldKoti Vadlamudi · PRESIDENT & CEO
PRESIDENT & CEO
$1.0M boughtCarla S. Mashinski · Director
Director
$281.4K soldTerry D. Mccallister · Director
Director
$6.7K boughtHas the Primoris Services Corporation's CEO sold stock?
Yes. David Lee King (CEO) sold 3,500 shares ($455.0K) in Nov 2025. Koti Vadlamudi (CEO) made no open-market sales filed as CEO in the last 12 months.
Open-market trades
11 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| John M. Perisich | CHIEF LEGAL AND ADMIN OFFICER | $3.8M | — | 1 | — | |
| David Lee King | INTERIM PRESIDENT & CEO → Director | $2.8M | — | 2 | — | |
| Patricia K. Wagner | Director | $1.7M | — | 1 | — | |
| John P. Schauerman | Director | $1.1M | — | 1 | — | |
| Koti Vadlamudi | PRESIDENT & CEO | — | $1.0M | 1 | — | |
| Carla S. Mashinski | Director | $281.4K | — | 1 | — | |
| Terry D. Mccallister | Director | — | $6.7K | 4 | — |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Terry D. Mccallister Director | Purchase | 22 | $79.98 | $1.7K | 21,522 | |
traded | Terry D. Mccallister Director | Purchase | 20 | $86.66 | $1.7K | 21,144 | |
traded | Koti Vadlamudi PRESIDENT & CEO | Purchase | 7,815 | $127.96 | $1.0M | 7,815 | |
traded | John M. Perisich CHIEF LEGAL AND ADMIN OFFICER | Sale | 29,707 | $127.86 | $3.8M | 18,124 | |
traded | David Lee King Director | Sale | 20,000 | $119.09 | $2.4M | 18,691 | |
traded | Terry D. Mccallister Director | Purchase | 10 | $164.40 | $1.7K | 20,857 | |
traded | Terry D. Mccallister Director | Purchase | 12 | $138.00 | $1.6K | 20,552 | |
traded | John P. Schauerman Director | Sale | 7,815 | $136.00 | $1.1M | 74,466 | |
traded | Carla S. Mashinski Director | Sale | 2,082 | $135.14 | $281.4K | 21,530 | |
traded | David Lee King INTERIM PRESIDENT & CEO | Sale | 3,500 | $130.00 | $455.0K | 21,302 | |
traded | Patricia K. Wagner Director | Sale | 13,491 | $125.23 | $1.7M | 4,495 |
GET /stocks/filings/vX/form-4?tickers=PRIM&filing_date.gte=2025-10-23&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"PRIM"
],
"issuer_cik": "0001361538",
"owner_cik": "0001216725",
"accession_number": "0001216725-26-000014",
"form_type": "4",
"filing_date": "2026-10-16",
"period_of_report": "2026-10-15",
"issuer_name": "Primoris Services Corp",
"issuer_trading_symbol": "PRIM",
"owner_name": "MCCALLISTER TERRY D",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-10-15",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 21.505,
"transaction_price_per_share": 79.98,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 21521.56,
"transaction_value": 1719.9699,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These transactions were the result of the automatic reinvestment of dividends received on shares of issuer common stock pursuant to a broker-sponsored dividend reinvestment plan."
},
{
"id": "F2",
"description": "Based on information provided by the investment advisor; additional information, including the price range, if any, is unavailable."
}
]
},
{
"tickers": [
"PRIM"
],
"issuer_cik": "0001361538",
"owner_cik": "0001216725",
"accession_number": "0001216725-26-000010",
"form_type": "4",
"filing_date": "2026-07-17",
"period_of_report": "2026-07-15",
"issuer_name": "Primoris Services Corp",
"issuer_trading_symbol": "PRIM",
"owner_name": "MCCALLISTER TERRY D",
"is_director": true,
"is_officer": false,
"is_ten_percent_owner": false,
"is_other": false,
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": false,
"transaction_date": "2026-07-15",
"transaction_code": "P",
"equity_swap_involved": false,
"transaction_shares": 19.501,
"transaction_price_per_share": 86.66,
"transaction_acquired_disposed": "A",
"shares_owned_following_transaction": 21144.055,
"transaction_value": 1689.95666,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "These transactions were the result of the automatic reinvestment of dividends received on shares of issuer common stock pursuant to a broker-sponsored dividend reinvestment plan."
},
{
"id": "F2",
"description": "Based on information provided by the investment advisor; additional information, including the price range, if any, is unavailable."
}
]
}
]
}
// trimmed to 2 resultsThe response includes every Form 4 record; this page keeps open-market purchases and sales on common stock and removes duplicate joint-filer rows.
Other insider activity (not market trades) · 54 records
- Option exercises7 records
- Tax withholding7 records
- Grants and awards36 records
- Gifts4 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
Build this yourself
This page joins two Massive endpoints: Form 4 filings and daily prices. Ask an agent to watch for new filings:
Using the Massive API (massive.com/docs/llms.txt), check Form 4 filings for PRIM every day with transaction_code=P and tell me when an insider files an open-market purchase, with their role, shares, price and the filing link.
How to read this page
- Open-market purchase or sale
- A buy or sell of the company's stock at market price. Grants, option exercises, shares withheld for tax, gifts and employee stock plan purchases are listed separately and not counted.
- Role
- The title on each filing. Someone whose title changed shows more than one.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.