Cars.com Inc.
US ˙ NYSE ˙ US14575E1055

SecurityCARS / Cars.com Inc.
InstitutionSimplex Trading, Llc
Latest Disclosed Ownership1,926 shares
Latest Disclosed Value $ 15,639
Simplex Trading, Llc ownership in CARS / Cars.com Inc.

On May 14, 2026 - Simplex Trading, Llc filed a 13F-HR form disclosing ownership of 1,926 shares of Cars.com Inc. (US:CARS) valued at $15,639 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 5,614 shares of Cars.com Inc.. This represents a change in shares of -65.69% during the quarter. The current value of the position is $17,681 USD.

Simplex Trading, Llc has a history of taking positions in derivatives of the underlying security (CARS) 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 1,600 of underlying shares valued at $12,991 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.

CARS / Cars.com Inc. 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)
2026-05-14 2026-03-31 13F CARS COM COM 14575E105 1,926 -3,688 -65.69 16 -77.94 0.0000
2026-02-11 2025-12-31 13F CARS COM COM 14575E105 5,614 -34,174 -85.89 68 0.0000
2025-11-12 2025-09-30 13F CARS COM COM 14575E105 39,788 -5,788 -12.70 0 0.0002
2025-08-05 2025-06-30 13F CARS COM COM 14575E105 45,576 28,511 167.07 1 0.0003
2025-05-12 2025-03-31 13F CARS COM COM 14575E105 17,065 1,303 8.27 0 0.0001
2025-02-11 2024-12-31 13F CARS COM COM 14575E105 15,762 11,760 293.85 0 0.0002
2024-11-08 2024-09-30 13F CARS COM COM 14575E105 4,002 4,002 0 0.0000
2024-07-25 2024-06-30 13F CARS COM COM 14575E105 0 -661 -100.00 0 0.0000
2024-04-25 2024-03-31 13F CARS COM COM 14575E105 661 -420 -38.85 0 0.0000
2024-02-02 2023-12-31 13F CARS COM COM 14575E105 1,081 -4,515 -80.68 0 0.0000
2023-11-01 2023-09-30 13F CARS COM COM 14575E105 5,596 2,505 81.04 0 0.0001
2023-08-04 2023-06-30 13F CARS COM COM 14575E105 3,091 -4,658 -60.11 0 0.0001
2023-04-27 2023-03-31 13F CARS COM COM 14575E105 7,749 7,749 0 0.0001
2023-02-02 2022-12-31 13F CARS COM COM 14575E105 0 -5,905 -100.00 0 -100.00
2022-11-04 2022-09-30 13F CARS COM COM 14575E105 5,905 -63,943 -91.55 67 -89.82 0.0001
2022-08-03 2022-06-30 13F CARS COM COM 14575E105 69,848 40,933 141.56 658 57.79 0.0007
2022-05-02 2022-03-31 13F CARS COM COM 14575E105 28,915 26,579 1,137.80 417 1,163.64 0.0004
2022-02-04 2021-12-31 13F CARS COM COM 14575E105 2,336 0 0.00 33 0.00 0.0000
2021-10-28 2021-09-30 13F CARS COM COM 14575E105 2,336 45 1.96 33 3.13 0.0000
2021-08-12 2021-06-30 13F CARS COM COM 14575E105 2,291 2,291 32 0.0000
2021-04-26 2021-03-31 13F CARS COM COM 14575E105 0 -760 -100.00 0 -100.00
2021-02-02 2020-12-31 13F CARS COM COM 14575E105 760 760 8 0.0000
2020-10-14 2020-09-30 13F CARS COM COM 14575E105 0 -59,621 -100.00 0 -100.00
2020-07-13 2020-06-30 13F CARS COM COM 14575E105 59,621 59,621 343 0.0005
2020-04-28 2020-03-31 13F CARS COM COM 14575E105 0 -3,708 -100.00 0 -100.00
2020-02-05 2019-12-31 13F CARS COM COM 14575E105 3,708 2,492 204.93 45 350.00 0.0001
2019-10-15 2019-09-30 13F CARS COM COM 14575E105 1,216 -37,473 -96.86 10 -98.69 0.0000
2019-07-26 2019-06-30 13F CARS COM COM 14575E105 38,689 -15,854 -29.07 762 -38.70 0.0021
2019-04-18 2019-03-31 13F CARS COM COM 14575E105 54,543 46,819 606.15 1,243 648.80 0.0035
2019-01-16 2018-12-31 13F CARS COM COM 14575E105 7,724 -38,765 -83.39 166 -87.06 0.0005
2018-10-23 2018-09-30 13F CARS COM COM 14575E105 46,489 23,592 103.04 1,283 97.38 0.0041
2018-07-30 2018-06-30 13F CARS COM COM 14575E105 22,897 22,897 -50.75 650 -49.34 0.0025
2018-01-10 2017-12-31 13F CARS COM COM 14575E105 0 -7,743 -100.00 0 -100.00
2017-10-25 2017-09-30 13F CARS COM COM 14575E105 7,743 6,070 362.82 206 368.18 0.0084
2017-07-12 2017-06-30 13F CARS COM COM 14575E105 1,673 1,673 44 0.0019
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
(%)
2026-05-14 2026-03-31 13F CARS COM CALL Call 0 -100.00 0 n/a n/a n/a
2026-02-11 2025-12-31 13F CARS COM CALL Call 300 -75.00 4 n/a n/a n/a
2025-11-12 2025-09-30 13F CARS COM CALL Call 1,200 20.00 0 n/a n/a n/a
2025-08-05 2025-06-30 13F CARS COM CALL Call 1,000 -72.97 0 n/a n/a n/a
2025-05-12 2025-03-31 13F CARS COM CALL Call 3,700 0 n/a n/a n/a
2025-02-11 2024-12-31 13F CARS COM CALL Call 0 -100.00 0 n/a n/a n/a
2024-11-08 2024-09-30 13F CARS COM CALL Call 100 -85.71 0 n/a n/a n/a
2024-07-25 2024-06-30 13F CARS COM CALL Call 700 -83.72 0 n/a n/a n/a
2024-04-25 2024-03-31 13F CARS COM CALL Call 4,300 38.71 0 n/a n/a n/a
2024-02-02 2023-12-31 13F CARS COM CALL Call 3,100 933.33 0 n/a n/a n/a
2023-11-01 2023-09-30 13F CARS COM CALL Call 300 -85.71 0 n/a n/a n/a
2023-08-04 2023-06-30 13F CARS COM CALL Call 2,100 50.00 0 n/a n/a n/a
2023-04-27 2023-03-31 13F CARS COM CALL Call 1,400 -12.50 0 n/a n/a n/a
2023-02-02 2022-12-31 13F CARS COM CALL Call 1,600 -97.67 0 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F CARS COM CALL Call 68,600 1,147.27 788 1,445.10 n/a n/a n/a
2022-08-03 2022-06-30 13F CARS COM CALL Call 5,500 19.57 51 -22.73 n/a n/a n/a
2022-05-02 2022-03-31 13F CARS COM CALL Call 4,600 -94.19 66 -94.82 n/a n/a n/a
2022-02-23 2021-12-31 13F/A CARS COM CALL Call 79,200 725.00 1,274 823.19 n/a n/a n/a
2022-02-04 2021-12-31 13F CARS COM CALL Call 9,600 138 n/a n/a n/a
2021-10-28 2021-09-30 13F CARS COM CALL Call 9,600 0.00 138 0.73 n/a n/a n/a
2021-08-12 2021-06-30 13F CARS COM CALL Call 9,600 5,614.29 137 -36.87 n/a n/a n/a
2021-04-26 2021-03-31 13F CARS COM CALL Call 168 -17.24 217 -5.24 n/a n/a n/a
2021-02-02 2020-12-31 13F CARS COM CALL Call 203 -67.21 229 -54.20 n/a n/a n/a
2020-10-14 2020-09-30 13F CARS COM CALL Call 619 13.37 500 59.24 n/a n/a n/a
2020-07-13 2020-06-30 13F CARS COM CALL Call 546 38.23 314 85.80 n/a n/a n/a
2020-04-29 2020-03-31 13F CARS COM CALL Call 395 -72.12 169 -90.24 n/a n/a n/a
2020-02-05 2019-12-31 13F CARS COM CALL Call 1,417 -0.63 1,731 35.23 n/a n/a n/a
2019-10-15 2019-09-30 13F CARS COM CALL Call 1,426 -6.25 1,280 -57.32 n/a n/a n/a
2019-07-26 2019-06-30 13F CARS COM CALL Call 1,521 455.11 2,999 380.61 n/a n/a n/a
2019-04-18 2019-03-31 13F CARS COM CALL Call 274 -54.49 624 -51.78 n/a n/a n/a
2019-01-16 2018-12-31 13F CARS COM CALL Call 602 -50.82 1,294 -61.70 n/a n/a n/a
2018-10-23 2018-09-30 13F CARS COM CALL Call 1,224 10,100.00 3,379 9,838.24 n/a n/a n/a
2018-07-30 2018-06-30 13F CARS COM CALL Call 12 -99.97 34 -97.44 n/a n/a n/a
2018-04-26 2018-03-31 13F CARS COM CALL Call 46,270 13,629.97 1,330 2,193.10 n/a n/a n/a
2018-01-10 2017-12-31 13F CARS COM CALL Call 337 58 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
(%)
2026-05-14 2026-03-31 13F CARS COM PUT Put 1,600 -96.54 13 -97.87 n/a n/a n/a
2026-02-11 2025-12-31 13F CARS COM PUT Put 46,200 -40.23 564 n/a n/a n/a
2025-11-12 2025-09-30 13F CARS COM PUT Put 77,300 1 n/a n/a n/a
2025-05-12 2025-03-31 13F CARS COM PUT Put 0 -100.00 0 n/a n/a n/a
2025-02-11 2024-12-31 13F CARS COM PUT Put 33,500 1.21 1 n/a n/a n/a
2024-11-08 2024-09-30 13F CARS COM PUT Put 33,100 845.71 1 n/a n/a n/a
2024-07-25 2024-06-30 13F CARS COM PUT Put 3,500 3,400.00 0 n/a n/a n/a
2024-04-25 2024-03-31 13F CARS COM PUT Put 100 0.00 0 n/a n/a n/a
2024-02-02 2023-12-31 13F CARS COM PUT Put 100 -99.87 0 -100.00 n/a n/a n/a
2023-11-01 2023-09-30 13F CARS COM PUT Put 76,900 -40.85 1 -50.00 n/a n/a n/a
2023-08-04 2023-06-30 13F CARS COM PUT Put 130,000 -17.14 3 -33.33 n/a n/a n/a
2023-04-27 2023-03-31 13F CARS COM PUT Put 156,900 155.95 3 n/a n/a n/a
2023-02-02 2022-12-31 13F CARS COM PUT Put 61,300 2.17 1 -100.00 n/a n/a n/a
2022-11-04 2022-09-30 13F CARS COM PUT Put 60,000 -49.15 690 -37.95 n/a n/a n/a
2022-08-03 2022-06-30 13F CARS COM PUT Put 118,000 -16.13 1,112 -45.22 n/a n/a n/a
2022-05-02 2022-03-31 13F CARS COM PUT Put 140,700 681.67 2,030 602.42 n/a n/a n/a
2022-02-23 2021-12-31 13F/A CARS COM PUT Put 18,000 500.00 289 572.09 n/a n/a n/a
2022-02-04 2021-12-31 13F CARS COM PUT Put 3,000 43 n/a n/a n/a
2021-10-28 2021-09-30 13F CARS COM PUT Put 3,000 0.00 43 2.38 n/a n/a n/a
2021-08-12 2021-06-30 13F CARS COM PUT Put 3,000 2,339.02 42 -73.58 n/a n/a n/a
2021-04-26 2021-03-31 13F CARS COM PUT Put 123 141.18 159 178.95 n/a n/a n/a
2021-02-02 2020-12-31 13F CARS COM PUT Put 51 41.67 57 96.55 n/a n/a n/a
2020-10-14 2020-09-30 13F CARS COM PUT Put 36 -78.05 29 -69.15 n/a n/a n/a
2020-07-13 2020-06-30 13F CARS COM PUT Put 164 1,071.43 94 1,466.67 n/a n/a n/a
2020-04-29 2020-03-31 13F CARS COM PUT Put 14 -93.64 6 -97.76 n/a n/a n/a
2020-02-05 2019-12-31 13F CARS COM PUT Put 220 223.53 268 339.34 n/a n/a n/a
2019-10-15 2019-09-30 13F CARS COM PUT Put 68 3,300.00 61 1,933.33 n/a n/a n/a
2019-07-26 2019-06-30 13F CARS COM PUT Put 2 -99.36 3 -99.58 n/a n/a n/a
2019-04-18 2019-03-31 13F CARS COM PUT Put 311 2,491.67 709 2,736.00 n/a n/a n/a
2019-01-16 2018-12-31 13F CARS COM PUT Put 12 -88.24 25 -91.10 n/a n/a n/a
2018-10-23 2018-09-30 13F CARS COM PUT Put 102 39.73 281 35.75 n/a n/a n/a
2018-07-30 2018-06-30 13F CARS COM PUT Put 73 -29.13 207 3,350.00 n/a n/a n/a
2018-04-26 2018-03-31 13F CARS COM PUT Put 103 22.62 6 20.00 n/a n/a n/a
2018-01-10 2017-12-31 13F CARS COM PUT Put 84 170.97 5 400.00 n/a n/a n/a
2017-10-25 2017-09-30 13F CARS COM PUT Put 31 1 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.