The Cigna Group
MX ˙ BMV ˙ US1255231003
SecurityMX:CI / The Cigna Group
InstitutionTwo Sigma Investments, Lp
ManagerJohn Overdeck, David Siegel
Latest Disclosed Ownership641,348 shares
Latest Disclosed Value $ 171,079,579
Two Sigma Investments, Lp ownership in CI / The Cigna Group

On May 15, 2026 - Two Sigma Investments, Lp filed a 13F-HR form disclosing ownership of 641,348 shares of The Cigna Group (MX:CI) valued at $171,079,579 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 115,361 shares of The Cigna Group. This represents a change in shares of 455.95% during the quarter.

Two Sigma Investments, Lp has a history of taking positions in derivatives of the underlying security (CI) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:CI / The Cigna Group Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F THE CIGNA GROUP COM 125523100 641,348 525,987 455.95 171,080 438.83 0.1380
2026-02-17 2025-12-31 13F THE CIGNA GROUP COM 125523100 115,361 -311,775 -72.99 31,751 -74.21 0.0448
2025-11-14 2025-09-30 13F THE CIGNA GROUP COM 125523100 427,136 -123,570 -22.44 123,122 -32.37 0.1833
2025-08-14 2025-06-30 13F THE CIGNA GROUP COM 125523100 550,706 197,570 55.95 182,052 56.70 0.3224
2025-05-15 2025-03-31 13F THE CIGNA GROUP COM 125523100 353,136 -411,764 -53.83 116,182 -45.00 0.2483
2025-02-14 2024-12-31 13F THE CIGNA GROUP COM 125523100 764,900 188,235 32.64 211,219 5.73 0.4606
2024-11-14 2024-09-30 13F THE CIGNA GROUP COM 125523100 576,665 265,931 85.58 199,780 94.49 0.4378
2024-08-14 2024-06-30 13F THE CIGNA GROUP COM 125523100 310,734 -127,683 -29.12 102,719 -35.49 0.2340
2024-05-15 2024-03-31 13F THE CIGNA GROUP COM 125523100 438,417 327,367 294.79 159,229 378.84 0.3737
2024-02-14 2023-12-31 13F THE CIGNA GROUP COM 125523100 111,050 104,610 1,624.38 33,254 1,705.27 0.0764
2023-11-14 2023-09-30 13F THE CIGNA GROUP COM 125523100 6,440 -38,756 -85.75 1,842 -85.47 0.0050
2023-08-14 2023-06-30 13F THE CIGNA GROUP COM 125523100 45,196 -610,348 -93.11 12,682 -92.43 0.0318
2023-05-15 2023-03-31 13F THE CIGNA GROUP COM 125523100 655,544 632,347 2,725.99 167,511 2,079.43 0.4788
2023-02-14 2022-12-31 13F CIGNA CORP COM 125523100 23,197 23,197 7,686 0.0241
2022-11-14 2022-09-30 13F CIGNA CORP COM 125523100 0 -231,396 -100.00 0 -100.00
2022-08-15 2022-06-30 13F CIGNA CORP COM 125523100 231,396 175,915 317.07 60,977 358.68 0.2013
2022-05-16 2022-03-31 13F CIGNA CORP COM 125523100 55,481 55,481 13,294 0.0392
2022-02-14 2021-12-31 13F CIGNA CORP COM 125523100 0 -59,797 -100.00 0 -100.00
2021-11-15 2021-09-30 13F CIGNA CORP COM 125523100 59,797 -224,453 -78.96 11,969 -82.24 0.0267
2021-08-16 2021-06-30 13F CIGNA CORP COM 125523100 284,250 284,250 67,387 0.1529
2021-02-16 2020-12-31 13F CIGNA CORP COM 125523100 0 -42,415 -100.00 0 -100.00
2020-11-16 2020-09-30 13F CIGNA CORP COM 125523100 42,415 4,500 11.87 7,186 1.00 0.0255
2020-08-14 2020-06-30 13F CIGNA CORP COM 125523100 37,915 37,915 -10.61 7,115 -0.99 0.0352
2020-02-14 2019-12-31 13F CIGNA CORP COM 125523100 0 -10,696 -100.00 0 -100.00
2019-11-14 2019-09-30 13F CIGNA CORP COM 125523100 10,696 10,696 1,624 0.0055
2019-05-15 2019-03-31 13F CIGNA CORP COM 125523100 0 -14,383 -100.00 0 -100.00
2019-02-14 2018-12-31 13F CIGNA CORP COM 125523100 14,383 -684,512 -97.94 2,732 -98.12 0.0107
2018-11-14 2018-09-30 13F CIGNA COM 125509109 698,895 46,723 7.16 145,545 31.31 0.3967
2018-08-14 2018-06-30 13F CIGNA COM 125509109 652,172 523,665 407.50 110,837 414.18 0.3305
2018-05-15 2018-03-31 13F CIGNA COM 125509109 128,507 114,961 848.67 21,556 683.57 0.0717
2018-02-14 2017-12-31 13F CIGNA COM 125509109 13,546 13,546 -89.46 2,751 -87.24 0.0090
2017-11-14 2017-09-30 13F CIGNA COM 125509109 0 -228,646 -100.00 0 -100.00
2017-08-14 2017-06-30 13F CIGNA COM 125509109 228,646 -554,652 -70.81 38,273 -66.65 0.1384
2017-05-15 2017-03-31 13F CIGNA COM 125509109 783,298 -365,283 -31.80 114,745 -25.11 0.3864
2017-02-14 2016-12-31 13F CIGNA COM 125509109 1,148,581 -7,161 -0.62 153,209 1.72 0.5874
2016-11-14 2016-09-30 13F CIGNA COM 125509109 1,155,742 101,385 9.62 150,616 11.61 0.5459
2016-08-15 2016-06-30 13F CIGNA COM 125509109 1,054,357 213,917 25.45 134,947 17.00 0.5794
2016-05-16 2016-03-31 13F CIGNA COM 125509109 840,440 283,715 50.96 115,342 41.58 0.5494
2016-02-16 2015-12-31 13F CIGNA COM 125509109 556,725 556,725 -33.76 81,466 -29.37 0.3907
2015-11-16 2015-09-30 13F CIGNA COM 125509109 0 -23,144 -100.00 0 -100.00
2016-02-09 2015-06-30 13F/A-1 CIGNA COM 125509109 23,144 23,144 -88.47 3,749 -81.85 0.0182
2015-08-14 2015-06-30 13F CIGNA COM 125509109 23,144 3,749
2015-05-15 2015-03-31 13F CIGNA COM 125509109 0 -200,758 -100.00 0 -100.00
2016-02-09 2014-12-31 13F/A-1 CIGNA COM 125509109 200,758 200,758 -5.79 20,660 5.41 0.1188
2015-02-17 2014-12-31 13F CIGNA COM 125509109 200,758 20,660
2014-11-14 2014-09-30 13F CIGNA COM 125509109 0 -213,102 -100.00 0 -100.00
2016-02-09 2014-06-30 13F/A-1 CIGNA COM 125509109 213,102 178,192 510.43 19,599 570.28 0.0925
2014-08-14 2014-06-30 13F CIGNA COM 125509109 213,102 19,599
2014-05-15 2014-03-31 13F CIGNA COM 125509109 34,910 17,606 101.75 2,924 93.13 0.0157
2014-02-14 2013-12-31 13F CIGNA COM 125509109 17,304 17,304 1,514 0.0084
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-02-14 2021-12-31 13F CIGNA CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F CIGNA CORP COM Call 5,500 1,101 n/a n/a n/a
2021-08-16 2021-06-30 13F CIGNA CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F CIGNA CORP COM Call 2,000 100.00 483 132.21 n/a n/a n/a
2021-02-16 2020-12-31 13F CIGNA CORP COM Call 1,000 -67.74 208 -60.38 n/a n/a n/a
2020-11-16 2020-09-30 13F CIGNA CORP COM Call 3,100 10.71 525 0.00 n/a n/a n/a
2020-08-14 2020-06-30 13F CIGNA CORP COM Call 2,800 40.00 525 48.31 n/a n/a n/a
2020-05-15 2020-03-31 13F CIGNA CORP COM Call 2,000 -91.27 354 -92.44 n/a n/a n/a
2020-02-14 2019-12-31 13F CIGNA CORP COM Call 22,900 252.31 4,683 374.47 n/a n/a n/a
2019-11-14 2019-09-30 13F CIGNA CORP COM Call 6,500 -89.40 987 -89.78 n/a n/a n/a
2019-08-14 2019-06-30 13F CIGNA CORP COM Call 61,300 843.08 9,658 878.52 n/a n/a n/a
2019-05-15 2019-03-31 13F CIGNA CORP COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F CIGNA CORP COM Call 2,000 380 n/a n/a n/a
2018-11-14 2018-09-30 13F CIGNA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F CIGNA COM Call 2,000 340 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2022-02-14 2021-12-31 13F CIGNA CORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-11-15 2021-09-30 13F CIGNA CORP COM Put 12,100 2,422 n/a n/a n/a
2021-08-16 2021-06-30 13F CIGNA CORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F CIGNA CORP COM Put 6,000 1,450 n/a n/a n/a
2021-02-16 2020-12-31 13F CIGNA CORP COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-11-16 2020-09-30 13F CIGNA CORP COM Put 5,600 33.33 949 20.43 n/a n/a n/a
2020-08-14 2020-06-30 13F CIGNA CORP COM Put 4,200 -6.67 788 -1.13 n/a n/a n/a
2020-05-15 2020-03-31 13F CIGNA CORP COM Put 4,500 -57.14 797 -62.88 n/a n/a n/a
2020-02-14 2019-12-31 13F CIGNA CORP COM Put 10,500 -23.36 2,147 3.22 n/a n/a n/a
2019-11-14 2019-09-30 13F CIGNA CORP COM Put 13,700 -75.58 2,080 -76.47 n/a n/a n/a
2019-08-14 2019-06-30 13F CIGNA CORP COM Put 56,100 309.49 8,839 324.95 n/a n/a n/a
2019-02-14 2018-12-31 13F CIGNA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-11-14 2018-09-30 13F CIGNA COM Put 7,400 146.67 1,541 202.16 n/a n/a n/a
2018-08-14 2018-06-30 13F CIGNA COM Put 3,000 510 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.