Centene Corp (CNC): Congress and insider trades

Who in Congress and inside the company traded CNC, when each filing appeared, and what buying after each one would have earned against the S&P 500.

Key Facts

  • Centene Corp (CNC) is a listed stock on NYSE.
  • 10 members of Congress filed 35 buys and 20 sells of CNC, the latest published 2026-09-07 (7 September 2026).
  • Insiders filed 0 open market buys worth $0 and 3 sells worth $12M, the latest filed 2026-08-27 (27 August 2026).
  • Across 23 scored buys, Congress averaged -10.6% against the S&P 500 (SPY) over the 90 days after disclosure, with 22% of them ahead of the index. That result is modestly below the market, but could still be chance.
  • Data as of 2026-09-29 (29 September 2026).
Congress buys 35 10 members
Congress sells 20
Insider buys 0 $0
Insider sells 3 $12M
Congress buys vs S&P, 90d -10.6% 23 scored buys
Insider buys vs S&P, 90d n/a 0 scored buys

Congress trades in CNC

as of 2026-09-07
  1. Ro Khanna19 trades
  2. Diana Harshbarger11 trades
  3. Kathy Manning8 trades
  4. Daniel S. Goldman4 trades
  5. Earl Blumenauer4 trades
  6. Susie Lee4 trades
  7. Julia Letlow2 trades
  8. David McKinley1 trade
Congress trades in CNC, newest first.
FiledMemberTypeSizeDays to file90 day vs S&P
7 Sep 2026 Ro Khanna (D-CA) sell 15K–50K 25 n/a
11 Jun 2026 Ro Khanna (D-CA) buy 1K–15K 25 -2.1%
12 Mar 2026 Ro Khanna (D-CA) sell 1K–15K 32 n/a
14 Jan 2026 Julia Letlow (R-LA) buy 1K–15K 274 -21.8%
14 Jan 2026 Julia Letlow (R-LA) sell 1K–15K 158 n/a
15 May 2025 Ro Khanna (D-CA) buy 1K–15K 19 -65.3%
9 May 2025 Rob Bresnahan (R-PA) buy 1K–15K 30 -68.9%
9 Oct 2023 Ro Khanna (D-CA) sell 15K–50K 30 n/a
14 Aug 2023 Daniel S. Goldman (D-NY) sell 15K–50K 32 n/a
13 Jul 2023 Earl Blumenauer (D-OR) sell 1K–15K 27 n/a
22 May 2023 Kathy Manning (D-NC) buy 1K–15K 21 -8.3%
22 May 2023 Daniel S. Goldman (D-NY) buy 15K–50K 39 -8.3%
22 May 2023 Kathy Manning (D-NC) buy 1K–15K 21 -8.3%
17 Apr 2023 Daniel S. Goldman (D-NY) sell 1K–15K 42 n/a
12 Apr 2023 Ro Khanna (D-CA) buy 15K–50K 24 -16.3%
12 Apr 2023 Ro Khanna (D-CA) buy 1K–15K 14 -16.3%
10 Mar 2023 Ro Khanna (D-CA) sell 15K–50K 26 n/a
27 Feb 2023 Daniel S. Goldman (D-NY) buy 1K–15K 24 -14.7%
9 Feb 2023 Ro Khanna (D-CA) buy 15K–50K 29 -8.8%
9 Feb 2023 Ro Khanna (D-CA) sell 1K–15K 27 n/a
4 Jan 2023 Diana Harshbarger (R-TN) buy 1K–15K 15 -22.7%
4 Jan 2023 Diana Harshbarger (R-TN) buy 1K–15K 34 -22.7%
4 Jan 2023 Diana Harshbarger (R-TN) buy 1K–15K 15 -22.7%
4 Jan 2023 Ro Khanna (D-CA) buy 1K–15K 4 -22.7%
4 Jan 2023 Ro Khanna (D-CA) sell 15K–50K 28 n/a
4 Jan 2023 Diana Harshbarger (R-TN) buy 1K–15K 15 -22.7%
2 Jan 2023 Peter Meijer (R-MI) sell < 1K 682 n/a
1 Dec 2022 Diana Harshbarger (R-TN) buy 1K–15K 34 -18.3%
7 Nov 2022 Diana Harshbarger (R-TN) buy 1K–15K 32 -23.2%
7 Nov 2022 Diana Harshbarger (R-TN) buy 1K–15K 32 -23.2%
7 Nov 2022 Diana Harshbarger (R-TN) buy 1K–15K 32 -23.2%
13 Oct 2022 David McKinley (R-WV) buy 1K–15K 21 -6.3%
6 Oct 2022 Earl Blumenauer (D-OR) buy 1K–15K 9 -1.8%
29 Sep 2022 Diana Harshbarger (R-TN) buy 1K–15K 33 -2.8%
29 Sep 2022 Diana Harshbarger (R-TN) buy 1K–15K 33 -2.8%
29 Sep 2022 Diana Harshbarger (R-TN) buy 1K–15K 33 -2.8%
11 Aug 2022 Kathy Manning (D-NC) sell 1K–15K 14 n/a
11 Aug 2022 Kathy Manning (D-NC) buy 1K–15K 14 -5.4%
11 Aug 2022 Kathy Manning (D-NC) sell 1K–15K 14 n/a
4 Apr 2022 Earl Blumenauer (D-OR) sell 1K–15K 18 n/a
4 Apr 2022 Earl Blumenauer (D-OR) buy 1K–15K 36 +16.7%
10 Jan 2022 Ro Khanna (D-CA) buy 1K–15K 31 +14.7%
8 Dec 2021 Ro Khanna (D-CA) buy 15K–50K 28 +18.7%
10 Nov 2021 Ro Khanna (D-CA) sell 1K–15K 33 n/a
15 Oct 2021 Ro Khanna (D-CA) sell 1K–15K 16 n/a
16 Sep 2021 Ro Khanna (D-CA) buy 1K–15K 30 +22.7%
16 Sep 2021 Ro Khanna (D-CA) sell 1K–15K 40 n/a
16 Sep 2021 Ro Khanna (D-CA) buy 15K–50K 29 +22.7%
15 Jun 2021 Susie Lee (D-NV) sell 1K–15K 34 n/a
7 May 2021 Kathy Manning (D-NC) buy 1K–15K 6 -10.2%
12 Mar 2021 Susie Lee (D-NV) sell 1K–15K 20 n/a
5 Feb 2021 Kathy Manning (D-NC) buy 1K–15K 20 +12.5%
5 Feb 2021 Kathy Manning (D-NC) buy 1K–15K 20 +12.5%
9 Dec 2020 Susie Lee (D-NV) buy 1K–15K 34 n/a
9 Dec 2020 Susie Lee (D-NV) sell 1K–15K 50 n/a

Insider trades in CNC

as of 2026-08-27
Open market insider trades in CNC, newest first.
FiledInsiderTypeSharesPriceValue90 day vs S&P
27 Aug 2026 KOSTER CHRISTOPHER sell 56,500 $66.90 $3.8M n/a
19 Aug 2026 KOSTER CHRISTOPHER sell 47,603 $65.36 $3.1M n/a
11 Jun 2026 Burdick Kenneth A sell 80,000 $64.55 $5.2M n/a

Frequently asked questions

Who has bought CNC?

35 Congress buys by 10 members and 0 insider buys are on file. The tables on this page list every one.

Did buying CNC after a disclosure beat the market?

Across 23 scored buys, Congress averaged -10.6% against the S&P 500 (SPY) over the 90 days after disclosure, with 22% of them ahead of the index. That result is modestly below the market, but could still be chance. A single stock is a small sample.

Sources: Congressional trades: STOCK Act disclosures, collected from CapitolTrades. Insider trades: SEC Form 4 filings, collected from Finviz. Prices: Yahoo Finance daily adjusted closes. Data as of 2026-09-29 (29 September 2026). About these sources.

Not investment advice. Past disclosed trades do not predict future returns. Disclosures are published late, so the trades shown are ones you could only have copied after the fact. Talk to a licensed adviser before you invest.