Protagonist Therapeutics, Inc.
US ˙ NasdaqGM ˙ US74366E1029

SecurityPTGX / Protagonist Therapeutics, Inc.
InstitutionTd Asset Management Inc
Latest Disclosed Ownership183,700 shares
Latest Disclosed Value $ 19,361,980
Td Asset Management Inc reports 15.73% increase in ownership of PTGX / Protagonist Therapeutics, Inc.

On May 11, 2026 - Td Asset Management Inc filed a 13F-HR form disclosing ownership of 183,700 shares of Protagonist Therapeutics, Inc. (US:PTGX) valued at $19,361,980 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 158,730 shares of Protagonist Therapeutics, Inc.. This represents a change in shares of 15.73% during the quarter. The current value of the position is $17,888,706 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)
2026-05-11 2026-03-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 183,700 24,970 15.73 19,362 39.66 0.0084
2026-02-10 2025-12-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 158,730 8,302 5.52 13,863 38.74 0.0112
2025-11-10 2025-09-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 150,428 34,096 29.31 9,993 55.42 0.0081
2025-07-28 2025-06-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 116,332 -53,600 -31.54 6,430 -21.76 0.0055
2025-05-07 2025-03-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 169,932 -3,770 -2.17 8,218 22.57 0.0076
2025-02-11 2024-12-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 173,702 1,500 0.87 6,705 -12.63 0.0059
2024-11-01 2024-09-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 172,202 23,900 16.12 7,673 49.34 0.0068
2024-08-02 2024-06-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 148,302 39,850 36.74 5,139 63.79 0.0048
2024-05-08 2024-03-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 108,452 -2,348 -2.12 3,138 23.50 0.0029
2024-02-12 2023-12-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 110,800 0 0.00 2,541 37.45 0.0025
2023-10-27 2023-09-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 110,800 55,400 100.00 1,848 20.78 0.0022
2023-08-09 2023-06-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 55,400 26,400 91.03 1,530 129.39 0.0017
2023-05-10 2023-03-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 29,000 29,000 667 0.0008
2022-08-03 2022-06-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 0 -17,842 -100.00 0 -100.00
2022-05-10 2022-03-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 17,842 -15,200 -46.00 422 -62.65 0.0002
2022-02-10 2021-12-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 33,042 -14,000 -29.76 1,130 35.49 0.0009
2021-11-09 2021-09-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 47,042 -21,800 -31.67 834 -75.49 0.0009
2021-08-11 2021-06-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 68,842 7,371 11.99 3,403 113.76 0.0035
2021-05-14 2021-03-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 61,471 10,219 19.94 1,592 54.11 0.0018
2021-02-16 2020-12-31 13F PROTAGONIST THERAPEUTICS COM 74366E102 51,252 11,899 30.24 1,033 34.33 0.0013
2020-11-10 2020-09-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 39,353 0 0.00 769 10.65 0.0011
2020-08-13 2020-06-30 13F PROTAGONIST THERAPEUTICS COM 74366E102 39,353 39,353 695 0.0010
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.