Protagonist Therapeutics Ownership | Who Owns Protagonist Therapeutics?
Protagonist Therapeutics Ownership Summary
Protagonist Therapeutics is owned by 120.15% institutional investors, 0.71% insiders. Blackrock funding, inc. /de is the largest institutional shareholder, holding 15.38% of PTGX shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.57% of its assets in Protagonist Therapeutics shares.
PTGX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Protagonist Therapeutics | 120.15% | 0.71% | -20.87% |
| Sector | Healthcare Stocks | 35.58% | 11.87% | 52.55% |
| Industry | Biotech Stocks | 35.75% | 11.83% | 52.41% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 9.78M | 15.38% | $1.03B |
| Farallon capital management | 6.35M | 9.99% | $669.17M |
| Blackrock | 5.76M | 9.39% | $199.52M |
| Vanguard group | 5.41M | 8.49% | $472.83M |
| Ubs group | 5.18M | 8.14% | $545.74M |
| Rtw investments, lp | 5.06M | 7.96% | $533.22M |
| Wellington management group llp | 3.60M | 5.66% | $379.40M |
| State street | 3.12M | 4.90% | $328.51M |
| Janus henderson group | 2.89M | 4.55% | $304.87M |
| Bvf inc/il | 2.56M | 4.03% | $170.12M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Johnson & johnson | 2.45M | 39.57% | $258.14M |
| Lynx1 capital management lp | 700.01K | 9.47% | $46.50M |
| Aquilo capital management | 81.69K | 7.08% | $3.95M |
| Bvf inc/il | 2.56M | 6.90% | $170.12M |
| Adar1 capital management | 989.18K | 6.17% | $65.71M |
| Rtw investments, lp | 5.06M | 5.31% | $533.22M |
| Nationale-nederlanden powszechne towarzystwo emerytalne | 571.83K | 5.11% | $60.27M |
| Knott david m jr | 63.00K | 3.95% | $6.64M |
| Farallon capital management | 6.35M | 3.81% | $669.17M |
| Eagle health investments lp | 179.32K | 3.31% | $18.90M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Ubs group | 5.18M | 0.08% | 2.41M |
| Vanguard group | 5.41M | 0.01% | 1.16M |
| Hood river capital management | 829.28K | 0.88% | 829.28K |
| Jennison associates | 1.07M | 0.08% | 740.85K |
| Invesco | 2.16M | 0.03% | 596.83K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Pacer advisors | - | - | -1.88M |
| Deep track capital, lp | - | - | -1.72M |
| Fairmount funds management | - | - | -931.89K |
| Bvf inc/il | 2.56M | 6.90% | -650.13K |
| Commodore capital lp | - | - | -450.00K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Hood river capital management | 829.28K | 0.88% | 829.28K | $87.41M |
| Rubric capital management lp | 428.00K | 0.48% | 428.00K | $45.11M |
| Vanguard fiduciary trust | 412.73K | 0.01% | 412.73K | $43.50M |
| Eagle asset management | 357.63K | 0.07% | 357.63K | $12.59M |
| Vestal point capital, lp | 326.16K | 0.96% | 326.16K | $34.38M |
Sold Out
| Holder | Change |
|---|---|
| Tfc financial management | -1.00 |
| Td capital management | -4.00 |
| Ifp advisors | -5.00 |
| Mendota financial group | -6.00 |
| Flagship harbor advisors | -6.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Mar 31, 2026 | 324 | -1.82% | 76,383,746 | 8.00% | 120 | 0.98% | 163 | -11.41% | 105 | 2.94% |
| Dec 31, 2025 | 156 | -44.68% | 26,213,291 | -62.92% | 41 | 0.33% | 90 | -30.23% | 45 | -58.33% |
| Sep 30, 2025 | 140 | -48.91% | 21,573,409 | -68.80% | 33 | 0.29% | 55 | -67.26% | 60 | -20.00% |
| Jun 30, 2025 | 279 | -3.79% | 70,876,648 | 8.54% | 111 | 1.04% | 167 | 3.73% | 78 | -13.33% |
| Mar 31, 2025 | 19 | -92.31% | 15,761,655 | -75.08% | 25 | 0.24% | 12 | -91.18% | 5 | -93.33% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 3.58M | 5.57% | 753.00 |
| Vanguard Total Stock Mkt Idx Inv | 2.04M | 3.18% | 5.86K |
| Vanguard US Total Market Shares ETF | 1.87M | 3.05% | 129.62K |
| Pacer US Small Cap Cash Cows 100 ETF | 1.61M | 2.63% | -11.71K |
| Vanguard Health Care Inv | 1.56M | 2.42% | 495.12K |
| Vanguard Small Cap Index | 1.47M | 2.29% | -2.92K |
| iShares Russell 2000 ETF | 1.37M | 2.13% | 11.56K |
| T. Rowe Price Health Sciences | 1.16M | 1.82% | 250.56K |
| SPDR® S&P Biotech ETF | 983.05K | 1.58% | 2.19K |
| State Street® SPDR® S&P® Biotech ETF | 979.02K | 1.52% | -9.68K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jun 10, 2026 | Waddill William D. | - | Sell | $969.12K |
| May 29, 2026 | Waddill William D. | - | Sell | $896.76K |
| May 12, 2026 | PATEL DINESH V PH D | President and CEO | Sell | $7.51M |
| May 07, 2026 | Giraudo Bryan | - | Sell | $3.61M |
| May 08, 2026 | Giraudo Bryan | - | Sell | $513.00K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 8 |
| 2026 Q1 | - | 18 |
| 2025 Q4 | - | 3 |
| 2025 Q3 | - | 6 |
| 2025 Q2 | - | 3 |
PTGX Ownership FAQ
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