Olema Pharmaceuticals, Inc.
US ˙ NasdaqGS ˙ US68062P1066

SecurityOLMA / Olema Pharmaceuticals, Inc.
InstitutionCitadel Advisors Llc
ManagerKen Griffin
Latest Disclosed Ownership905,332 shares
Latest Disclosed Value $ 13,498,500
Citadel Advisors Llc ownership in OLMA / Olema Pharmaceuticals, Inc.

On May 15, 2026 - Citadel Advisors Llc filed a 13F-HR form disclosing ownership of 905,332 shares of Olema Pharmaceuticals, Inc. (US:OLMA) valued at $13,498,500 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 1,200,307 shares of Olema Pharmaceuticals, Inc.. This represents a change in shares of -24.57% during the quarter. The current value of the position is $9,333,973 USD.

Citadel Advisors Llc has a history of taking positions in derivatives of the underlying security (OLMA) in the form of stock options. The firm currently holds call options representing 137,900 of underlying shares valued at $2,056,089 USD and put options representing 63,100 of underlying shares valued at $940,821 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.

OLMA / Olema Pharmaceuticals, 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 OLEMA PHARMACEUTICALS COM 68062P106 905,332 -294,975 -24.57 13,498 -55.02 0.0022
2026-02-17 2025-12-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,200,307 -36,608 -2.96 30,008 147.81 0.0045
2025-11-14 2025-09-30 13F OLEMA PHARMACEUTICALS COM 68062P106 1,236,915 -471,219 -27.59 12,109 66.42 0.0018
2025-08-14 2025-06-30 13F OLEMA PHARMACEUTICALS COM 68062P106 1,708,134 -164,494 -8.78 7,277 3.34 0.0013
2025-05-15 2025-03-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,872,628 189,421 11.25 7,041 -28.25 0.0013
2025-02-14 2024-12-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,683,207 430,462 34.36 9,813 -34.39 0.0017
2024-11-14 2024-09-30 13F OLEMA PHARMACEUTICALS COM 68062P106 1,252,745 1,120,492 847.23 14,958 945.94 0.0029
2024-08-14 2024-06-30 13F OLEMA PHARMACEUTICALS COM 68062P106 132,253 -648,407 -83.06 1,431 -83.82 0.0003
2024-05-15 2024-03-31 13F OLEMA PHARMACEUTICALS COM 68062P106 780,660 496,708 174.93 8,837 121.87 0.0017
2024-02-14 2023-12-31 13F OLEMA PHARMACEUTICALS COM 68062P106 283,952 -154,952 -35.30 3,984 -26.51 0.0008
2023-11-14 2023-09-30 13F OLEMA PHARMACEUTICALS COM 68062P106 438,904 -197,571 -31.04 5,420 -5.69 0.0012
2023-08-14 2023-06-30 13F OLEMA PHARMACEUTICALS COM 68062P106 636,475 -594,041 -48.28 5,747 34.62 0.0012
2023-05-15 2023-03-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,230,516 5,366 0.44 4,270 42.25 0.0009
2023-02-14 2022-12-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,225,150 -27,792 -2.22 3,002 -13.22 0.0007
2022-11-14 2022-09-30 13F OLEMA PHARMACEUTICALS COM 68062P106 1,252,942 -228,273 -15.41 3,458 -42.63 0.0008
2022-08-15 2022-06-30 13F OLEMA PHARMACEUTICALS COM 68062P106 1,481,215 219,550 17.40 6,028 12.17 0.0015
2022-05-16 2022-03-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,261,665 -164,847 -11.56 5,374 -59.75 0.0011
2022-02-14 2021-12-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,426,512 -50,543 -3.42 13,352 -67.20 0.0027
2021-11-15 2021-09-30 13F OLEMA PHARMACEUTICALS Cmn 68062P106 1,477,055 40,576 2.82 40,707 1.28 0.0085
2021-08-16 2021-06-30 13F OLEMA PHARMACEUTICALS COM 68062P106 1,436,479 1,683 0.12 40,193 -15.57 0.0090
2021-05-21 2021-03-31 13F/A-1 OLEMA PHARMACEUTICALS COM 68062P106 1,434,796 0 0.00 47,607 -30.99 0.0117
2021-05-17 2021-03-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,434,796 0 47,607 0.0117
2021-02-16 2020-12-31 13F OLEMA PHARMACEUTICALS COM 68062P106 1,434,796 1,434,796 68,985 0.0179
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 OLEMA PHARMACEUTICALS COM Call 137,900 31.58 2,056 -21.53 n/a n/a n/a
2026-02-17 2025-12-31 13F OLEMA PHARMACEUTICALS COM Call 104,800 2,620 n/a n/a n/a
2025-08-14 2025-06-30 13F OLEMA PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-05-15 2025-03-31 13F OLEMA PHARMACEUTICALS COM Call 6,300 -70.70 24 -81.60 n/a n/a n/a
2025-02-14 2024-12-31 13F OLEMA PHARMACEUTICALS COM Call 21,500 241.27 125 66.67 n/a n/a n/a
2024-11-14 2024-09-30 13F OLEMA PHARMACEUTICALS COM Call 6,300 -80.43 75 -78.45 n/a n/a n/a
2024-08-14 2024-06-30 13F OLEMA PHARMACEUTICALS COM Call 32,200 90.53 348 82.20 n/a n/a n/a
2024-05-15 2024-03-31 13F OLEMA PHARMACEUTICALS COM Call 16,900 -43.29 191 -54.31 n/a n/a n/a
2024-02-14 2023-12-31 13F OLEMA PHARMACEUTICALS COM Call 29,800 34.23 418 52.55 n/a n/a n/a
2023-11-14 2023-09-30 13F OLEMA PHARMACEUTICALS COM Call 22,200 70.77 274 134.19 n/a n/a n/a
2023-08-14 2023-06-30 13F OLEMA PHARMACEUTICALS COM Call 13,000 117 n/a n/a n/a
2023-05-15 2023-03-31 13F OLEMA PHARMACEUTICALS COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-14 2022-12-31 13F OLEMA PHARMACEUTICALS COM Call 20,000 -43.18 49 -49.48 n/a n/a n/a
2022-11-14 2022-09-30 13F OLEMA PHARMACEUTICALS COM Call 35,200 -26.36 97 -50.26 n/a n/a n/a
2022-08-15 2022-06-30 13F OLEMA PHARMACEUTICALS COM Call 47,800 171.59 195 160.00 n/a n/a n/a
2022-05-16 2022-03-31 13F OLEMA PHARMACEUTICALS COM Call 17,600 -51.52 75 -77.94 n/a n/a n/a
2022-02-14 2021-12-31 13F OLEMA PHARMACEUTICALS COM Call 36,300 340 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 OLEMA PHARMACEUTICALS COM Put 63,100 -8.95 941 -45.73 n/a n/a n/a
2026-02-17 2025-12-31 13F OLEMA PHARMACEUTICALS COM Put 69,300 433.08 1,732 1,263.78 n/a n/a n/a
2025-11-14 2025-09-30 13F OLEMA PHARMACEUTICALS COM Put 13,000 -58.60 127 -4.51 n/a n/a n/a
2025-08-14 2025-06-30 13F OLEMA PHARMACEUTICALS COM Put 31,400 106.58 134 133.33 n/a n/a n/a
2025-05-15 2025-03-31 13F OLEMA PHARMACEUTICALS COM Put 15,200 1,069.23 57 714.29 n/a n/a n/a
2025-02-14 2024-12-31 13F OLEMA PHARMACEUTICALS COM Put 1,300 -80.60 8 -91.14 n/a n/a n/a
2024-11-14 2024-09-30 13F OLEMA PHARMACEUTICALS COM Put 6,700 -29.47 80 -22.55 n/a n/a n/a
2024-08-14 2024-06-30 13F OLEMA PHARMACEUTICALS COM Put 9,500 14.46 103 9.68 n/a n/a n/a
2024-05-15 2024-03-31 13F OLEMA PHARMACEUTICALS COM Put 8,300 -69.37 94 -75.53 n/a n/a n/a
2024-02-14 2023-12-31 13F OLEMA PHARMACEUTICALS COM Put 27,100 367.24 380 435.21 n/a n/a n/a
2023-11-14 2023-09-30 13F OLEMA PHARMACEUTICALS COM Put 5,800 -51.67 72 -34.26 n/a n/a n/a
2023-08-14 2023-06-30 13F OLEMA PHARMACEUTICALS COM Put 12,000 1,900.00 108 5,300.00 n/a n/a n/a
2023-05-15 2023-03-31 13F OLEMA PHARMACEUTICALS COM Put 600 -79.31 2 -71.43 n/a n/a n/a
2023-02-14 2022-12-31 13F OLEMA PHARMACEUTICALS COM Put 2,900 7 n/a n/a n/a
2022-11-14 2022-09-30 13F OLEMA PHARMACEUTICALS COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-08-15 2022-06-30 13F OLEMA PHARMACEUTICALS COM Put 13,900 19.83 57 16.33 n/a n/a n/a
2022-05-16 2022-03-31 13F OLEMA PHARMACEUTICALS COM Put 11,600 49 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.