Turtle Beach Corporation
US ˙ NasdaqGM ˙ US9004502061
DIESES SYMBOL IST NICHT MEHR AKTIV

SecurityHEAR / Turtle Beach Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership6,477 shares
Latest Disclosed Value $ 65,677
Citigroup Inc ownership in HEAR / Turtle Beach Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 6,477 shares of Turtle Beach Corporation (US:HEAR) valued at $65,677 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,780 shares of Turtle Beach Corporation. This represents a change in shares of -16.75% during the quarter. The current value of the position is $113,153 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (HEAR) 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.

HEAR / Turtle Beach Corporation 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)
2026-05-11 2026-03-31 13F TURTLE BEACH COM NEW 900450206 6,477 -1,303 -16.75 66 -40.37 0.0000
2026-02-13 2025-12-31 13F TURTLE BEACH COM NEW 900450206 7,780 -588 -7.03 109 -18.05 0.0000
2025-11-10 2025-09-30 13F TURTLE BEACH COM NEW 900450206 8,368 -4,557 -35.26 133 -25.28 0.0001
2025-08-11 2025-06-30 13F TURTLE BEACH COM NEW 900450206 12,925 -3,563 -21.61 179 -24.26 0.0001
2025-05-12 2025-03-31 13F TURTLE BEACH COM NEW 900450206 16,488 -2,114 -11.36 235 -27.02 0.0001
2025-02-12 2024-12-31 13F TURTLE BEACH COM NEW 900450206 18,602 475 2.62 322 15.83 0.0002
2024-11-12 2024-09-30 13F TURTLE BEACH COM NEW 900450206 18,127 8,199 82.58 278 95.77 0.0002
2024-08-12 2024-06-30 13F TURTLE BEACH COM NEW 900450206 9,928 888 9.82 142 -8.39 0.0001
2024-05-10 2024-03-31 13F TURTLE BEACH COM NEW 900450206 9,040 -1,852 -17.00 156 30.25 0.0001
2024-02-09 2023-12-31 13F TURTLE BEACH COM NEW 900450206 10,892 1,987 22.31 119 48.75 0.0001
2023-12-06 2023-09-30 13F/A-1 TURTLE BEACH COM NEW 900450206 8,905 -5,502 -38.19 81 -52.10 0.0001
2023-11-09 2023-09-30 13F TURTLE BEACH COM NEW 900450206 8,905 -5,502 81 0.0000
2023-08-10 2023-06-30 13F TURTLE BEACH COM NEW 900450206 14,407 3,695 34.49 168 56.07 0.0001
2023-05-11 2023-03-31 13F TURTLE BEACH COM NEW 900450206 10,712 -516 -4.60 107 33.75 0.0001
2023-02-09 2022-12-31 13F TURTLE BEACH COM NEW 900450206 11,228 3,710 49.35 81 56.86 0.0001
2022-11-10 2022-09-30 13F TURTLE BEACH COM NEW 900450206 7,518 -37,741 -83.39 51 -90.79 0.0000
2022-08-10 2022-06-30 13F TURTLE BEACH COM NEW 900450206 45,259 -38,233 -45.79 554 -68.84 0.0004
2022-05-12 2022-03-31 13F TURTLE BEACH COM NEW 900450206 83,492 33,436 66.80 1,778 59.46 0.0011
2022-02-10 2021-12-31 13F TURTLE BEACH COM NEW 900450206 50,056 -34,577 -40.86 1,115 -52.65 0.0006
2021-11-10 2021-09-30 13F TURTLE BEACH COM NEW 900450206 84,633 54,176 177.88 2,355 142.28 0.0014
2021-08-10 2021-06-30 13F TURTLE BEACH COM NEW 900450206 30,457 -20,666 -40.42 972 -28.69 0.0006
2021-05-13 2021-03-31 13F TURTLE BEACH COM NEW 900450206 51,123 48,426 1,795.55 1,363 2,250.00 0.0009
2021-02-11 2020-12-31 13F TURTLE BEACH COM NEW 900450206 2,697 -2,653 -49.59 58 -40.82 0.0000
2020-11-12 2020-09-30 13F TURTLE BEACH COM NEW 900450206 5,350 -1,579 -22.79 98 -3.92 0.0001
2020-08-12 2020-06-30 13F TURTLE BEACH COM NEW 900450206 6,929 3,621 109.46 102 385.71 0.0001
2020-05-12 2020-03-31 13F TURTLE BEACH COM NEW 900450206 3,308 2,308 230.80 21 133.33 0.0000
2020-02-12 2019-12-31 13F TURTLE BEACH COM NEW 900450206 1,000 -1,198 -54.50 9 -65.38 0.0000
2019-11-08 2019-09-30 13F TURTLE BEACH COM NEW 900450206 2,198 -86,340 -97.52 26 -97.46 0.0000
2019-08-12 2019-06-30 13F TURTLE BEACH COM NEW 900450206 88,538 53,341 151.55 1,023 155.75 0.0008
2019-05-13 2019-03-31 13F TURTLE BEACH COM NEW 900450206 35,197 -118,552 -77.11 400 -81.77 0.0004
2019-02-12 2018-12-31 13F TURTLE BEACH COM NEW 900450206 153,749 151,591 7,024.61 2,194 5,002.33 0.0022
2018-11-13 2018-09-30 13F TURTLE BEACH COM NEW 900450206 2,158 1,286 147.48 43 138.89 0.0000
2018-08-10 2018-06-30 13F TURTLE BEACH COM NEW 900450206 872 872 18 0.0000
2016-08-12 2016-06-30 13F TURTLE BEACH COM 900450107 0 -185 -100.00 0 0.0000
2016-05-13 2016-03-31 13F TURTLE BEACH COM 900450107 185 98 112.64 0 0.0000
2016-02-12 2015-12-31 13F TURTLE BEACH COM 900450107 87 -3,064 -97.24 0 -100.00
2015-11-13 2015-09-30 13F TURTLE BEACH COM 900450107 3,151 2,984 1,786.83 8 0.0000
2015-08-13 2015-06-30 13F TURTLE BEACH COM 900450107 167 -314 -65.28 0 -100.00
2015-05-14 2015-03-31 13F TURTLE BEACH COM 900450107 481 -827 -63.23 1 -75.00 0.0000
2015-02-17 2014-12-31 13F TURTLE BEACH COM 900450107 1,308 990 311.32 4 100.00 0.0000
2014-11-14 2014-09-30 13F TURTLE BEACH COM 900450107 318 -85 -21.09 2 -50.00 0.0000
2014-08-14 2014-06-30 13F TURTLE BEACH COM 900450107 403 391 3,258.33 4 0.0000
2014-05-15 2014-03-31 13F PARAMETRIC SOUND COM NEW 699172201 12 -278 -95.86 0 -100.00
2013-11-14 2013-09-30 13F PARAMETRIC SOUND COM NEW 699172201 290 190 190.00 4 100.00 0.0000
2013-08-14 2013-06-30 13F PARAMETRIC SOUND COM NEW 699172201 100 100 2 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
(%)
2022-11-10 2022-09-30 13F TURTLE BEACH COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-10 2022-06-30 13F TURTLE BEACH COM NEW Call 33,700 -92.14 412 -95.49 n/a n/a n/a
2022-05-12 2022-03-31 13F TURTLE BEACH COM NEW Call 428,800 -18.25 9,129 -21.81 n/a n/a n/a
2022-02-10 2021-12-31 13F TURTLE BEACH COM NEW Call 524,500 74.83 11,675 39.89 n/a n/a n/a
2021-11-10 2021-09-30 13F TURTLE BEACH COM NEW Call 300,000 8,346 n/a n/a n/a
2021-05-13 2021-03-31 13F TURTLE BEACH COM NEW Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F TURTLE BEACH COM NEW Call 8,200 -33.33 177 -20.98 n/a n/a n/a
2020-11-12 2020-09-30 13F TURTLE BEACH COM NEW Call 12,300 -40.58 224 -26.56 n/a n/a n/a
2020-08-12 2020-06-30 13F TURTLE BEACH COM NEW Call 20,700 -11.54 305 108.90 n/a n/a n/a
2020-05-12 2020-03-31 13F TURTLE BEACH COM NEW Call 23,400 9.86 146 -27.36 n/a n/a n/a
2020-02-12 2019-12-31 13F TURTLE BEACH COM NEW Call 21,300 9.79 201 -11.06 n/a n/a n/a
2019-11-08 2019-09-30 13F TURTLE BEACH COM NEW Call 19,400 -38.41 226 -37.91 n/a n/a n/a
2019-08-12 2019-06-30 13F TURTLE BEACH COM NEW Call 31,500 120.28 364 124.69 n/a n/a n/a
2019-05-13 2019-03-31 13F TURTLE BEACH COM NEW Call 14,300 191.84 162 131.43 n/a n/a n/a
2019-02-12 2018-12-31 13F TURTLE BEACH COM NEW Call 4,900 600.00 70 400.00 n/a n/a n/a
2018-11-13 2018-09-30 13F TURTLE BEACH COM NEW Call 700 14 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
(%)
2021-05-13 2021-03-31 13F TURTLE BEACH COM NEW Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F TURTLE BEACH COM NEW Put 4,100 -28.07 88 -15.38 n/a n/a n/a
2020-11-12 2020-09-30 13F TURTLE BEACH COM NEW Put 5,700 -50.00 104 -38.10 n/a n/a n/a
2020-08-12 2020-06-30 13F TURTLE BEACH COM NEW Put 11,400 56.16 168 265.22 n/a n/a n/a
2020-05-12 2020-03-31 13F TURTLE BEACH COM NEW Put 7,300 46.00 46 -2.13 n/a n/a n/a
2020-02-12 2019-12-31 13F TURTLE BEACH COM NEW Put 5,000 -18.03 47 -33.80 n/a n/a n/a
2019-11-08 2019-09-30 13F TURTLE BEACH COM NEW Put 6,100 -16.44 71 -15.48 n/a n/a n/a
2019-08-12 2019-06-30 13F TURTLE BEACH COM NEW Put 7,300 -86.30 84 -86.14 n/a n/a n/a
2019-05-13 2019-03-31 13F TURTLE BEACH COM NEW Put 53,300 1,058.70 606 818.18 n/a n/a n/a
2019-02-12 2018-12-31 13F TURTLE BEACH COM NEW Put 4,600 666.67 66 450.00 n/a n/a n/a
2018-11-13 2018-09-30 13F TURTLE BEACH COM NEW Put 600 12 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.