SEC Form 4
Spyre Therapeutics, Inc. (SYRE) insider trading
In the 12 months to Oct 26, 2026, 7 SYRE insiders reported open-market sales of $441.4M across 31 filings; no open-market purchases were filed.
Latest filing · Last 12 months · Source: SEC EDGAR · How we count
- Open-market sales
- $441.4M
- 31 filings · 7 insiders
- Open-market purchases
- $0
- 0 filings
- Pre-arranged sales (10b5-1)
- 29 of 31
- $40.4M of $441.4M sold (9%)
Who traded SYRE, and when
- Sale
- Sale, pre-arranged (10b5-1)
SYRE daily close from Oct 27, 2025 to Oct 26, 2026, between $22.18 and $108.92, last $92.97. 31 sale and 0 purchase filings by 7 insiders, marked at their filing dates. Peter Evan Harwin, Director: sold $399.7M across 1 filing, first filed Jun 23, 2026, last Jun 23, 2026. Cameron Turtle, Chief Executive Officer: sold $11.4M across 12 filings, first filed Nov 5, 2025, last Oct 2, 2026. Michael Thomas Henderson, Director: sold $8.0M across 2 filings, first filed May 8, 2026, last Jun 23, 2026. Scott L. Burrows, Chief Financial Officer: sold $7.5M across 9 filings, first filed Mar 3, 2026, last Oct 2, 2026. Sheldon Sloan, Chief Medical Officer: sold $7.4M across 4 filings, first filed Apr 3, 2026, last Jul 2, 2026. Heidy King-Jones, Officer (see filing): sold $5.1M across 2 filings, first filed Sep 3, 2026, last Oct 2, 2026. Jeffrey W. Albers, Director: sold $2.4M across 1 filing, first filed Aug 10, 2026, last Aug 10, 2026.
Largest mark · tap a row for others
Peter Evan Harwin · Director
Sale $399,658,667
4,684,781 shares at $85.31 avg
Filed Jun 23, 2026
Close on filing date $97.05
Peter Evan Harwin · Director
Director
$399.7M soldCameron Turtle · Chief Executive Officer
Chief Executive Officer
$11.4M soldMichael Thomas Henderson · Director
Director
$8.0M soldScott L. Burrows · Chief Financial Officer
Chief Financial Officer
$7.5M soldSheldon Sloan · Chief Medical Officer
Chief Medical Officer
$7.4M soldHeidy King-Jones · Officer (see filing)
Officer (see filing)
$5.1M soldJeffrey W. Albers · Director
Director
$2.4M soldOpen-market trades
31 filings in the last 12 months| Insider | Role | Sold | Bought | Filings | Pre-arranged (10b5-1) | Last filed |
|---|---|---|---|---|---|---|
| Peter Evan Harwin | Director | $399.7M | — | 1 | — | |
| Cameron Turtle | Chief Executive Officer | $11.4M | — | 12 | 100% of sales | |
| Michael Thomas Henderson | Director | $8.0M | — | 2 | 100% of sales | |
| Scott L. Burrows | Chief Financial Officer | $7.5M | — | 9 | 83% of sales | |
| Sheldon Sloan | Chief Medical Officer | $7.4M | — | 4 | 100% of sales | |
| Heidy King-Jones | Officer (see filing) | $5.1M | — | 2 | 100% of sales | |
| Jeffrey W. Albers | Director | $2.4M | — | 1 | 100% of sales |
| Filed | Insider | Type | Shares | Avg price | Value | Held after | Source |
|---|---|---|---|---|---|---|---|
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 25,000 | $90.47 | $2.3M | 79,762 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $92.01 | $1.4M | 549,257 | |
traded | Heidy King-Jones Officer (see filing) | SalePre-arranged (10b5-1) | 28,933 | $91.03 | $2.6M | 5,445 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $87.29 | $1.3M | 552,540 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 7,500 | $87.31 | $654.8K | 100,210 | |
traded | Heidy King-Jones Officer (see filing) | SalePre-arranged (10b5-1) | 28,399 | $87.35 | $2.5M | 2,845 | |
traded | Jeffrey W. Albers Director | SalePre-arranged (10b5-1) | 23,000 | $104.53 | $2.4M | Multiple accounts | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $95.51 | $1.4M | 574,583 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 7,500 | $95.57 | $716.8K | 97,994 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $87.69 | $1.3M | 582,540 | |
traded | Sheldon Sloan Chief Medical Officer | SalePre-arranged (10b5-1) | 8,334 | $87.70 | $730.9K | 0 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 7,500 | $87.74 | $658.0K | 99,719 | |
traded | Scott L. Burrows Chief Financial Officer | Sale | 15,000 | $87.13 | $1.3M | 107,994 | |
traded | Peter Evan Harwin Director | Sale | 4,684,781 | $85.31 | $399.7M | 0 | |
traded | Michael Thomas Henderson Director | SalePre-arranged (10b5-1) | 20,000 | $100.00 | $2.0M | 68,606 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 7,500 | $71.06 | $532.9K | 97,994 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $70.43 | $1.1M | 600,834 | |
traded | Sheldon Sloan Chief Medical Officer | SalePre-arranged (10b5-1) | 8,333 | $75.00 | $625.0K | 0 | |
traded | Michael Thomas Henderson Director | SalePre-arranged (10b5-1) | 80,000 | $74.40 | $6.0M | 166,202 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $71.37 | $1.1M | 612,540 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 12,500 | $71.37 | $892.1K | 97,994 | |
traded | Sheldon Sloan Chief Medical Officer | SalePre-arranged (10b5-1) | 78,333 | $71.50 | $5.6M | 0 | |
traded | Sheldon Sloan Chief Medical Officer | SalePre-arranged (10b5-1) | 7,958 | $50.00 | $397.9K | 0 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $49.33 | $739.9K | 630,196 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 7,500 | $49.34 | $370.1K | 99,294 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $42.19 | $632.9K | 651,640 | |
traded | Scott L. Burrows Chief Financial Officer | SalePre-arranged (10b5-1) | 2,500 | $40.65 | $101.6K | 97,994 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $32.80 | $492.0K | 657,540 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $30.68 | $460.1K | 672,007 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 15,000 | $29.02 | $435.4K | 690,912 | |
traded | Cameron Turtle Chief Executive Officer | SalePre-arranged (10b5-1) | 45,000 | $23.33 | $1.0M | 701,907 |
GET /stocks/filings/vX/form-4?tickers=SYRE&filing_date.gte=2025-10-26&sort=filing_date.desc&limit=500{
"status": "OK",
"results": [
{
"tickers": [
"AGLE",
"SYRE"
],
"issuer_cik": "0001636282",
"owner_cik": "0001853327",
"accession_number": "0001636282-26-000117",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-09-30",
"issuer_name": "Spyre Therapeutics, Inc.",
"issuer_trading_symbol": "SYRE",
"owner_name": "Burrows Scott L",
"is_director": false,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Financial Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 3071,
"transaction_price_per_share": 92.95,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 79991,
"transaction_value": 285449.45,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F2",
"description": "This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on November 10, 2025."
},
{
"id": "F6",
"description": "The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $92.54 to $93.53, inclusive. The Reporting Person undertakes to provide to\nthe Issuer, any security holder of the Issuer, or the staff of the SEC, upon request, full information regarding the number of shares sold at each separate price within the range."
}
]
},
{
"tickers": [
"AGLE",
"SYRE"
],
"issuer_cik": "0001636282",
"owner_cik": "0001758363",
"accession_number": "0001636282-26-000118",
"form_type": "4",
"filing_date": "2026-10-02",
"period_of_report": "2026-10-01",
"issuer_name": "Spyre Therapeutics, Inc.",
"issuer_trading_symbol": "SYRE",
"owner_name": "Turtle Cameron",
"is_director": true,
"is_officer": true,
"is_ten_percent_owner": false,
"is_other": false,
"officer_title": "Chief Executive Officer",
"security_type": "non_derivative",
"record_type": "transaction",
"security_title": "Common Stock",
"transaction_timeliness": "O",
"aff_10b5_one": true,
"transaction_date": "2026-10-01",
"transaction_code": "S",
"equity_swap_involved": false,
"transaction_shares": 600,
"transaction_price_per_share": 89.14,
"transaction_acquired_disposed": "D",
"shares_owned_following_transaction": 551940,
"transaction_value": 53484,
"not_subject_to_section_16": false,
"direct_or_indirect": "D",
"footnotes": [
{
"id": "F1",
"description": "This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on June 20, 2025."
},
{
"id": "F2",
"description": "The price reported above is a weighted average price. The shares were sold in multiple transactions at prices ranging from $88.63 to $89.52, inclusive. The Reporting Person undertakes to provide to\nthe Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission (the \"SEC\"), upon request, full information regarding the number of shares sold at each separate price\nwithin the range."
},
{
"id": "F3",
"description": "Includes 29,078 shares of common stock that vest in monthly installments through November 2026, subject to the continuing service of the Reporting Person on each vesting date."
}
]
}
]
}
// 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) · 21 records
- Option exercises18 records
- Tax withholding (sold to cover)1 record
- Other2 records
Reported on Form 4 but not purchases or sales in the market, so not counted in the totals above.
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.
- Pre-arranged (10b5-1)
- The insider marked the filing as made under a trading plan set up in advance (SEC Rule 10b5-1). The mark covers the whole filing, and an unmarked filing may still be under a plan.
- Filing date
- Insiders have two business days to report a trade. Totals and the chart use the filing date, when the trade became public.
- Counted once
- When several owners (a fund and its partners, say) report the same trade, it's counted once. Corrected filings replace the originals.
Frequently asked questions
Has Spyre Therapeutics, Inc.'s CEO sold stock?
Yes. Cameron Turtle (CEO) sold 210,000 shares ($11.4M) between Nov 2025 and Oct 2026, all under a pre-arranged 10b5-1 plan.
How current is SYRE’s insider data?
These are SYRE Form 4 filings from the last year, refreshed daily. The Massive Form 4 API has the full, continuously updated record.
What counts as an open-market buy or sell?
Only purchases and sales at the market price. Option exercises, grants, gifts, and shares withheld for taxes are reported on Form 4 but are left out of the buy and sell totals.
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Track SYRE insider trades with your agent
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 SYRE 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.
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