Replimune Group, Inc.
US ˙ NasdaqGS ˙ US76029N1063

SecurityREPL / Replimune Group, Inc.
InstitutionRhumbline Advisers
Latest Disclosed Ownership87,740 shares
Latest Disclosed Value $ 671,198
Rhumbline Advisers reports 1.76% decrease in ownership of REPL / Replimune Group, Inc.

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 87,740 shares of Replimune Group, Inc. (US:REPL) valued at $671,211 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 89,311 shares of Replimune Group, Inc.. This represents a change in shares of -1.76% during the quarter. The current value of the position is $875,645 USD.

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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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)
2026-05-12 2026-03-31 13F REPLIMUNE GROUP COM 76029N106 87,740 -1,571 -1.76 671 -22.70 0.0006
2026-02-13 2025-12-31 13F REPLIMUNE GROUP COM 76029N106 89,311 -10,004 -10.07 868 108.65 0.0007
2025-11-06 2025-09-30 13F REPLIMUNE GROUP COM 76029N106 99,315 -2,690 -2.64 416 -56.07 0.0003
2025-08-12 2025-06-30 13F REPLIMUNE GROUP COM 76029N106 102,005 6,616 6.94 948 1.83 0.0008
2025-05-29 2025-03-31 13F/A-1 REPLIMUNE GROUP COM 76029N106 95,389 -76 -0.08 930 -19.55 0.0009
2025-04-08 2025-03-31 13F REPLIMUNE GROUP COM 76029N106 95,389 -76 930 0.0009
2025-05-29 2024-12-31 13F/A-1 REPLIMUNE GROUP COM 76029N106 95,465 7,317 8.30 1,156 19.67 0.0010
2025-01-30 2024-12-31 13F REPLIMUNE GROUP COM 76029N106 95,465 7,317 1,156 0.0010
2024-11-12 2024-09-30 13F REPLIMUNE GROUP COM 76029N106 88,148 3,225 3.80 966 26.44 0.0009
2024-08-01 2024-06-30 13F REPLIMUNE GROUP COM 76029N106 84,923 5,732 7.24 764 18.27 0.0007
2024-05-09 2024-03-31 13F REPLIMUNE GROUP COM 76029N106 79,191 2,026 2.63 647 -0.62 0.0006
2024-02-08 2023-12-31 13F REPLIMUNE GROUP COM 76029N106 77,165 6,621 9.39 650 -46.10 0.0007
2023-11-09 2023-09-30 13F REPLIMUNE GROUP COM 76029N106 70,544 939 1.35 1,207 -25.37 0.0014
2023-08-08 2023-06-30 13F REPLIMUNE GROUP COM 76029N106 69,605 -3,828 -5.21 1,616 161,500.00 0.0018
2023-05-11 2023-03-31 13F REPLIMUNE GROUP COM 76029N106 73,433 10,770 17.19 1 -99.94 0.0016
2023-02-14 2022-12-31 13F REPLIMUNE GROUP COM 76029N106 62,663 3,685 6.25 1,704 67.22 0.0023
2022-11-10 2022-09-30 13F REPLIMUNE GROUP COM 76029N106 58,978 14,971 34.02 1,019 32.51 0.0015
2022-08-11 2022-06-30 13F REPLIMUNE GROUP COM 76029N106 44,007 11,364 34.81 769 38.81 0.0011
2022-05-12 2022-03-31 13F REPLIMUNE GROUP COM 76029N106 32,643 1,616 5.21 554 -34.13 0.0007
2022-02-10 2021-12-31 13F REPLIMUNE GROUP COM 76029N106 31,027 368 1.20 841 -7.48 0.0010
2021-11-12 2021-09-30 13F REPLIMUNE GROUP COM 76029N106 30,659 2,206 7.75 909 -16.83 0.0012
2021-08-05 2021-06-30 13F REPLIMUNE GROUP COM 76029N106 28,453 4,835 20.47 1,093 51.60 0.0014
2021-05-06 2021-03-31 13F REPLIMUNE GROUP COM 76029N106 23,618 -1,135 -4.59 721 -23.62 0.0010
2021-02-10 2020-12-31 13F REPLIMUNE GROUP COM 76029N106 24,753 5,389 27.83 944 111.66 0.0013
2020-11-12 2020-09-30 13F REPLIMUNE GROUP COM 76029N106 19,364 -1,068 -5.23 446 -12.20 0.0007
2020-08-13 2020-06-30 13F REPLIMUNE GROUP COM 76029N106 20,432 5,009 32.48 508 229.87 0.0008
2020-05-06 2020-03-31 13F REPLIMUNE GROUP COM 76029N106 15,423 525 3.52 154 -28.04 0.0003
2020-02-05 2019-12-31 13F REPLIMUNE GROUP COM 76029N106 14,898 365 2.51 214 5.94 0.0004
2019-10-23 2019-09-30 13F REPLIMUNE GROUP COM 76029N106 14,533 -135 -0.92 202 -6.05 0.0004
2019-08-14 2019-06-30 13F REPLIMUNE GROUP COM 76029N106 14,668 3,253 28.50 215 23.56 0.0004
2019-05-01 2019-03-31 13F REPLIMUNE GROUP COM 76029N106 11,415 11,415 174 0.0003
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.