Grindr Inc.
US ˙ NYSE ˙ US39854F1012

SecurityGRND / Grindr Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership1,864,925 shares
Latest Disclosed Value $ 22,546,944
Citadel Advisors Llc ownership in GRND / Grindr Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 1,864,925 shares of Grindr Inc. (US:GRND) valued at $22,546,943 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 54,192 shares of Grindr Inc.. This represents a change in shares of 3,341.33% during the quarter. The current value of the position is $20,327,682 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (GRND) in the form of stock options. The firm currently holds call options representing 112,500 of underlying shares valued at $1,360,125 USD and put options representing 46,600 of underlying shares valued at $563,394 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.

GRND / Grindr 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)
2026-05-15 2026-03-31 13F GRINDR COM 39854F101 1,864,925 1,810,733 3,341.33 22,547 2,975.85 0.0032
2026-02-17 2025-12-31 13F GRINDR COM 39854F101 54,192 -298,261 -84.62 734 -86.15 0.0001
2025-11-14 2025-09-30 13F GRINDR COM 39854F101 352,453 26,858 8.25 5,294 -28.39 0.0008
2025-08-14 2025-06-30 13F GRINDR COM 39854F101 325,595 -52,026 -13.78 7,391 9.35 0.0013
2025-05-15 2025-03-31 13F GRINDR COM 39854F101 377,621 -132,478 -25.97 6,759 -25.73 0.0013
2025-02-14 2024-12-31 13F GRINDR COM 39854F101 510,099 -491,385 -49.07 9,100 -23.83 0.0016
2024-11-14 2024-09-30 13F GRINDR COM 39854F101 1,001,484 -1,440,909 -59.00 11,948 -60.04 0.0023
2024-08-14 2024-06-30 13F GRINDR COM 39854F101 2,442,393 2,331,690 2,106.26 29,895 2,566.73 0.0061
2024-05-15 2024-03-31 13F GRINDR COM 39854F101 110,703 -85,491 -43.57 1,121 -34.90 0.0002
2024-02-14 2023-12-31 13F GRINDR COM 39854F101 196,194 168,733 614.45 1,723 996.82 0.0003
2023-11-14 2023-09-30 13F GRINDR COM 39854F101 27,461 8,790 47.08 158 52.43 0.0000
2023-08-14 2023-06-30 13F GRINDR COM 39854F101 18,671 18,671 103 0.0000
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
(%)
2026-05-15 2026-03-31 13F GRINDR COM Call 112,500 -17.58 1,360 -26.41 n/a n/a n/a
2026-02-17 2025-12-31 13F GRINDR COM Call 136,500 -21.78 1,848 -29.47 n/a n/a n/a
2025-11-14 2025-09-30 13F GRINDR COM Call 174,500 219.60 2,621 111.46 n/a n/a n/a
2025-08-14 2025-06-30 13F GRINDR COM Call 54,600 15.19 1,239 46.11 n/a n/a n/a
2025-05-15 2025-03-31 13F GRINDR COM Call 47,400 49.06 848 49.56 n/a n/a n/a
2025-02-14 2024-12-31 13F GRINDR COM Call 31,800 227.84 567 393.04 n/a n/a n/a
2024-11-14 2024-09-30 13F GRINDR COM Call 9,700 -93.00 116 -93.22 n/a n/a n/a
2024-08-14 2024-06-30 13F GRINDR COM Call 138,500 1,695 n/a n/a n/a
2024-05-15 2024-03-31 13F GRINDR COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F GRINDR COM Call 900 8 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
(%)
2026-05-15 2026-03-31 13F GRINDR COM Put 46,600 -65.86 563 -69.53 n/a n/a n/a
2026-02-17 2025-12-31 13F GRINDR COM Put 136,500 149.54 1,848 125.09 n/a n/a n/a
2025-11-14 2025-09-30 13F GRINDR COM Put 54,700 -72.06 822 -81.53 n/a n/a n/a
2025-08-14 2025-06-30 13F GRINDR COM Put 195,800 39.76 4,445 77.26 n/a n/a n/a
2025-05-15 2025-03-31 13F GRINDR COM Put 140,100 7.52 2,508 7.87 n/a n/a n/a
2025-02-14 2024-12-31 13F GRINDR COM Put 130,300 -19.91 2,325 19.73 n/a n/a n/a
2024-11-14 2024-09-30 13F GRINDR COM Put 162,700 -31.84 1,941 -33.55 n/a n/a n/a
2024-08-14 2024-06-30 13F GRINDR COM Put 238,700 106.31 2,922 149.23 n/a n/a n/a
2024-05-15 2024-03-31 13F GRINDR COM Put 115,700 2,125.00 1,172 2,504.44 n/a n/a n/a
2024-02-14 2023-12-31 13F GRINDR COM Put 5,200 420.00 46 800.00 n/a n/a n/a
2023-11-14 2023-09-30 13F GRINDR COM Put 1,000 6 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.