Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock)
US ˙ NYSE ˙ US2561352038

SecurityRDY / Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock)
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership446,606 shares
Latest Disclosed Value $ 6,185,493
Citadel Advisors Llc ownership in RDY / Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock)

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 446,606 shares of Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock) (US:RDY) valued at $6,185,493 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 324,449 shares of Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock). This represents a change in shares of 37.65% during the quarter. The current value of the position is $5,913,063 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (RDY) 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.

Upgrade to unlock premium data and export to Excel .

Institutional Put/Call Ratios
(Premium Subscription Required)

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.

RDY / Dr. Reddy's Laboratories Limited - Depositary Receipt (Common Stock) 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 DR REDDYS LABS ADR 256135203 446,606 122,157 37.65 6,185 35.78 0.0010
2026-02-17 2025-12-31 13F DR REDDYS LABS ADR 256135203 324,449 190,167 141.62 4,555 142.67 0.0007
2025-11-14 2025-09-30 13F DR REDDYS LABS ADR 256135203 134,282 34,080 34.01 1,877 24.63 0.0003
2025-08-14 2025-06-30 13F DR REDDYS LABS ADR 256135203 100,202 -59,361 -37.20 1,506 -28.42 0.0003
2025-05-15 2025-03-31 13F DR REDDYS LABS ADR 256135203 159,563 159,563 2,105 0.0004
2024-11-14 2024-09-30 13F DR REDDYS LABS ADR 256135203 0 -7,681 -100.00 0 -100.00
2024-08-14 2024-06-30 13F DR REDDYS LABS ADR 256135203 7,681 645 9.17 585 13.37 0.0001
2024-05-15 2024-03-31 13F DR REDDYS LABS ADR 256135203 7,036 -103,473 -93.63 516 -93.29 0.0001
2024-02-14 2023-12-31 13F DR REDDYS LABS ADR 256135203 110,509 -61,339 -35.69 7,689 -33.09 0.0015
2023-11-14 2023-09-30 13F DR REDDYS LABS ADR 256135203 171,848 -124,770 -42.06 11,491 -38.61 0.0025
2023-08-14 2023-06-30 13F DR REDDYS LABS ADR 256135203 296,618 108,869 57.99 18,720 75.14 0.0039
2023-05-15 2023-03-31 13F DR REDDYS LABS ADR 256135203 187,749 99,886 113.68 10,689 135.11 0.0024
2023-02-14 2022-12-31 13F DR REDDYS LABS ADR 256135203 87,863 87,863 4,547 0.0011
2022-11-14 2022-09-30 13F DR REDDYS LABS ADR 256135203 0 -56,540 -100.00 0 -100.00
2022-08-15 2022-06-30 13F DR REDDYS LABS ADR 256135203 56,540 39,262 227.24 3,132 225.23 0.0008
2022-05-16 2022-03-31 13F DR REDDYS LABS ADR 256135203 17,278 17,278 963 0.0002
2022-02-14 2021-12-31 13F DR REDDYS LABS Depository Receipt 256135203 0 -16,623 -100.00 0 -100.00
2021-11-15 2021-09-30 13F DR REDDYS LABS Depository Receipt 256135203 16,623 -11,438 -40.76 1,083 -47.50 0.0002
2021-08-16 2021-06-30 13F DR REDDYS LABS ADR 256135203 28,061 -6,463 -18.72 2,063 -2.64 0.0005
2021-05-21 2021-03-31 13F/A-1 DR REDDYS LABS ADR 256135203 34,524 31,274 962.28 2,119 813.36 0.0005
2021-05-17 2021-03-31 13F DR REDDYS LABS ADR 256135203 34,524 31,274 2,119 0.0005
2021-02-16 2020-12-31 13F DR REDDYS LABS ADR 256135203 3,250 -12,642 -79.55 232 -79.00 0.0001
2020-11-16 2020-09-30 13F DR REDDYS LABS ADR 256135203 15,892 6,157 63.25 1,105 114.15 0.0003
2020-08-14 2020-06-30 13F DR REDDYS LABS Depository Receipt 256135203 9,735 3,072 46.11 516 91.82 0.0002
2020-05-15 2020-03-31 13F DR REDDYS LABS Depository Receipt 256135203 6,663 6,663 -31.56 269 -47.87 0.0001
2020-02-14 2019-12-31 13F DR REDDYS LABS Depository Receipt 256135203 0 -16,115 -100.00 0 -100.00
2019-11-14 2019-09-30 13F DR REDDYS LABS Depository Receipt 256135203 16,115 -27,615 -63.15 611 -62.72 0.0003
2019-08-14 2019-06-30 13F DR REDDYS LABS Depository Receipt 256135203 43,730 18,852 75.78 1,639 62.60 0.0008
2019-05-15 2019-03-31 13F DR REDDYS LABS Depository Receipt 256135203 24,878 16,524 197.80 1,008 220.00 0.0005
2019-02-14 2018-12-31 13F DR REDDYS LABS Depository Receipt 256135203 8,354 8,354 -66.42 315 -68.75 0.0002
2018-11-13 2018-09-30 13F DR REDDYS LABS Depository Receipt 256135203 0 -64,048 -100.00 0 -100.00
2018-08-14 2018-06-30 13F/A-1 DR REDDYS LABS Depository Receipt 256135203 64,048 64,048 2,062 0.0010
2018-08-10 2018-06-30 13F DR REDDYS LABS Depository Receipt 256135203 64,048 64,048 2,062
2018-02-09 2017-12-31 13F DR REDDYS LABS Depository Receipt 256135203 0 -8,003 -100.00 0 -100.00
2017-11-09 2017-09-30 13F DR REDDYS LABS Depository Receipt 256135203 8,003 8,003 286 0.0002
2014-11-14 2014-09-30 13F DR REDDY'S LABORATORIES LTD ADR 2:1 Depository Receipt 256135203 0 -11,630 -100.00 0 -100.00
2014-08-14 2014-06-30 13F DR REDDY'S LABORATORIES LTD ADR 2:1 Depository Receipt 256135203 11,630 1,295 12.53 502 10.82 0.0007
2014-05-15 2014-03-31 13F DR REDDY'S LABORATORIES LTD ADR 2:1 Depository Receipt 256135203 10,335 -5,630 -35.26 453 -30.84 0.0006
2014-02-14 2013-12-31 13F DR REDDY'S LABORATORIES LTD ADR 2:1 Depository Receipt 256135203 15,965 15,965 655 0.0009
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
(%)
2025-08-14 2025-06-30 13F DR REDDYS LABS ADR Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F DR REDDYS LABS ADR Call 2,100 -64.41 28 -70.97 n/a n/a n/a
2025-02-14 2024-12-31 13F DR REDDYS LABS ADR Call 5,900 73.53 93 -65.56 n/a n/a n/a
2024-11-14 2024-09-30 13F DR REDDYS LABS ADR Call 3,400 -43.33 270 -40.92 n/a n/a n/a
2024-08-14 2024-06-30 13F DR REDDYS LABS ADR Call 6,000 5.26 457 9.33 n/a n/a n/a
2024-05-15 2024-03-31 13F DR REDDYS LABS ADR Call 5,700 90.00 418 100.96 n/a n/a n/a
2024-02-14 2023-12-31 13F DR REDDYS LABS ADR Call 3,000 11.11 209 15.56 n/a n/a n/a
2023-11-14 2023-09-30 13F DR REDDYS LABS ADR Call 2,700 285.71 181 309.09 n/a n/a n/a
2023-08-14 2023-06-30 13F DR REDDYS LABS ADR Call 700 -74.07 44 -71.24 n/a n/a n/a
2023-05-15 2023-03-31 13F DR REDDYS LABS ADR Call 2,700 200.00 154 232.61 n/a n/a n/a
2023-02-14 2022-12-31 13F DR REDDYS LABS ADR Call 900 47 n/a n/a n/a
2022-08-15 2022-06-30 13F DR REDDYS LABS ADR Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-16 2022-03-31 13F DR REDDYS LABS ADR Call 7,600 35.71 424 15.85 n/a n/a n/a
2022-02-14 2021-12-31 13F DR REDDYS LABS ADR Call 5,600 3.70 366 3.98 n/a n/a n/a
2021-11-15 2021-09-30 13F DR REDDYS LABS Depository Receipt Call 5,400 -29.87 352 -37.81 n/a n/a n/a
2021-08-16 2021-06-30 13F DR REDDYS LABS ADR Call 7,700 566 n/a n/a n/a
2021-05-21 2021-03-31 13F/A DR REDDYS LABS ADR Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-16 2020-12-31 13F DR REDDYS LABS ADR Call 5,700 -35.96 406 -34.41 n/a n/a n/a
2020-11-16 2020-09-30 13F DR REDDYS LABS ADR Call 8,900 89.36 619 148.59 n/a n/a n/a
2020-08-14 2020-06-30 13F DR REDDYS LABS Depository Receipt Call 4,700 -35.62 249 -9.12 n/a n/a n/a
2019-08-14 2019-06-30 13F DR REDDYS LABS Depository Receipt Call 7,300 -7.59 274 -14.37 n/a n/a n/a
2019-05-15 2019-03-31 13F DR REDDYS LABS Depository Receipt Call 7,900 8.22 320 16.79 n/a n/a n/a
2018-08-14 2018-06-30 13F/A DR REDDYS LABS Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-14 2018-03-31 13F/A DR REDDYS LABS Cmn Call 17,100 80.00 559 56.58 n/a n/a n/a
2018-05-11 2018-03-31 13F DR REDDYS LABS Cmn Call 17,100 559 n/a n/a n/a
2018-02-09 2017-12-31 13F DR REDDYS LABS Cmn Call 9,500 -44.44 357 -36.14 n/a n/a n/a
2017-05-12 2017-03-31 13F DR REDDYS LABS Cmn Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-02-10 2016-12-31 13F DR REDDYS LABS Cmn Call 6,800 308 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
(%)
2025-08-14 2025-06-30 13F DR REDDYS LABS ADR Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F DR REDDYS LABS ADR Put 800 -93.10 11 -94.54 n/a n/a n/a
2025-02-14 2024-12-31 13F DR REDDYS LABS ADR Put 11,600 90.16 183 -62.19 n/a n/a n/a
2024-11-14 2024-09-30 13F DR REDDYS LABS ADR Put 6,100 117.86 485 127.23 n/a n/a n/a
2024-08-14 2024-06-30 13F DR REDDYS LABS ADR Put 2,800 16.67 213 21.02 n/a n/a n/a
2024-05-15 2024-03-31 13F DR REDDYS LABS ADR Put 2,400 380.00 176 417.65 n/a n/a n/a
2024-02-14 2023-12-31 13F DR REDDYS LABS ADR Put 500 -50.00 35 -48.48 n/a n/a n/a
2023-11-14 2023-09-30 13F DR REDDYS LABS ADR Put 1,000 400.00 67 450.00 n/a n/a n/a
2023-08-14 2023-06-30 13F DR REDDYS LABS ADR Put 200 -83.33 13 -82.35 n/a n/a n/a
2023-05-15 2023-03-31 13F DR REDDYS LABS ADR Put 1,200 1,100.00 68 1,260.00 n/a n/a n/a
2023-02-14 2022-12-31 13F DR REDDYS LABS ADR Put 100 5 n/a n/a n/a
2022-05-16 2022-03-31 13F DR REDDYS LABS ADR Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-02-14 2021-12-31 13F DR REDDYS LABS ADR Put 5,600 -59.42 366 -59.29 n/a n/a n/a
2021-11-15 2021-09-30 13F DR REDDYS LABS Depository Receipt Put 13,800 318.18 899 269.96 n/a n/a n/a
2021-08-16 2021-06-30 13F DR REDDYS LABS ADR Put 3,300 -67.00 243 -60.42 n/a n/a n/a
2021-05-21 2021-03-31 13F/A DR REDDYS LABS ADR Put 10,000 -13.04 614 -25.12 n/a n/a n/a
2021-05-17 2021-03-31 13F DR REDDYS LABS ADR Put 10,000 614 n/a n/a n/a
2021-02-16 2020-12-31 13F DR REDDYS LABS ADR Put 11,500 64.29 820 68.38 n/a n/a n/a
2020-11-16 2020-09-30 13F DR REDDYS LABS ADR Put 7,000 66.67 487 118.39 n/a n/a n/a
2020-08-14 2020-06-30 13F DR REDDYS LABS Depository Receipt Put 4,200 -40.00 223 -54.21 n/a n/a n/a
2018-11-13 2018-09-30 13F DR REDDYS LABS Cmn Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-08-14 2018-06-30 13F/A DR REDDYS LABS Cmn Put 7,000 -49.28 225 -50.11 n/a n/a n/a
2018-08-10 2018-06-30 13F DR REDDYS LABS Cmn Put 7,000 225 n/a n/a n/a
2018-05-14 2018-03-31 13F/A DR REDDYS LABS Cmn Put 13,800 -39.21 451 -47.13 n/a n/a n/a
2018-05-11 2018-03-31 13F DR REDDYS LABS Cmn Put 13,800 451 n/a n/a n/a
2018-02-09 2017-12-31 13F DR REDDYS LABS Cmn Put 22,700 -19.79 853 -15.54 n/a n/a n/a
2017-11-09 2017-09-30 13F DR REDDYS LABS Cmn Put 28,300 1,010 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.