Scholar Rock Holding Corporation
US ˙ NasdaqGS ˙ US80706P1030

SecuritySRRK / Scholar Rock Holding Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership38,728 shares
Latest Disclosed Value $ 1,903,869
Citigroup Inc ownership in SRRK / Scholar Rock Holding Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 38,728 shares of Scholar Rock Holding Corporation (US:SRRK) valued at $1,903,868 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 20,110 shares of Scholar Rock Holding Corporation. This represents a change in shares of 92.58% during the quarter. The current value of the position is $1,755,540 USD.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (SRRK) in the form of stock options. The firm currently holds call 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.

SRRK / Scholar Rock Holding 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 SCHOLAR ROCK HLDG COM 80706P103 38,728 18,618 92.58 1,904 115.03 0.0004
2026-02-13 2025-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 20,110 2,800 16.18 886 37.42 0.0004
2025-11-10 2025-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 17,310 -34,358 -66.50 645 -64.81 0.0003
2025-08-11 2025-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 51,668 -97,016 -65.25 1,830 -61.72 0.0009
2025-05-12 2025-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 148,684 50,323 51.16 4,780 12.44 0.0024
2025-02-12 2024-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 98,361 -190,777 -65.98 4,251 83.63 0.0025
2024-11-12 2024-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 289,138 19,857 7.37 2,316 3.21 0.0013
2024-08-12 2024-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 269,281 -267,048 -49.79 2,243 -76.45 0.0014
2024-05-10 2024-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 536,329 486,619 978.92 9,525 919.81 0.0063
2024-02-09 2023-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 49,710 48,878 5,874.76 935 18,580.00 0.0007
2023-12-06 2023-09-30 13F/A-1 SCHOLAR ROCK HLDG COM 80706P103 832 -9,500 -91.95 6 -93.51 0.0000
2023-11-09 2023-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 832 -9,500 6 0.0000
2023-08-10 2023-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 10,332 -104,268 -90.98 78 -91.59 0.0001
2023-05-11 2023-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 114,600 -100 -0.09 917 -11.75 0.0006
2023-02-09 2022-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 114,700 111,023 3,019.39 1,038 4,052.00 0.0008
2022-11-10 2022-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 3,677 1,785 94.34 25 127.27 0.0000
2022-08-10 2022-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 1,892 -12,508 -86.86 11 -94.09 0.0000
2022-05-12 2022-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 14,400 -43,444 -75.11 186 -87.06 0.0001
2022-02-10 2021-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 57,844 29,435 103.61 1,437 53.20 0.0008
2021-11-10 2021-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 28,409 -81,142 -74.07 938 -70.37 0.0006
2021-08-10 2021-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 109,551 47,829 77.49 3,166 1.25 0.0019
2021-05-13 2021-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 61,722 55,494 891.04 3,127 935.43 0.0020
2021-02-11 2020-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 6,228 3,161 103.06 302 459.26 0.0002
2020-11-12 2020-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 3,067 -31,063 -91.01 54 -91.32 0.0000
2020-08-12 2020-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 34,130 27,142 388.41 622 631.76 0.0005
2020-05-12 2020-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 6,988 1,113 18.94 85 10.39 0.0001
2020-02-12 2019-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 5,875 4,733 414.45 77 670.00 0.0001
2019-11-08 2019-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 1,142 -3,194 -73.66 10 -85.51 0.0000
2019-08-12 2019-06-30 13F SCHOLAR ROCK HLDG COM 80706P103 4,336 366 9.22 69 -6.76 0.0001
2019-05-13 2019-03-31 13F SCHOLAR ROCK HLDG COM 80706P103 3,970 2,188 122.78 74 80.49 0.0001
2019-02-12 2018-12-31 13F SCHOLAR ROCK HLDG COM 80706P103 1,782 44 2.53 41 -8.89 0.0000
2018-11-13 2018-09-30 13F SCHOLAR ROCK HLDG COM 80706P103 1,738 1,738 45 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
(%)
2025-05-12 2025-03-31 13F SCHOLAR ROCK HLDG COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-12 2024-12-31 13F SCHOLAR ROCK HLDG COM Call 40,000 1,729 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.