Polaryx Therapeutics, Inc. (PLYX) — Institutional Holders, Q2 2026
13 institutional investment managers reported a PLYX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $5.8M. Every filer is listed below, ranked by position value. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
PLYX in Q2 2026: what funds did
Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.
Biggest buyers
- HRT FINANCIALNew · +82,094 sh+$218.4K
- JANE STREET GROUPNew · +31,441 sh+$83.6K
- Allworth FinancialNew · +7,727 sh+$20.6K
- Tower Research Capital (TRC)Added · +1,221 sh+$3.2K
- VANGUARD FIDUCIARYAdded · +516 sh+$1.4K
Biggest sellers
- MILLENNIUM MANAGEMENTSold out · -127,525 sh-$339.2K
- BANK OF AMERICASold out · -25,881 sh-$68.8K
- GOLDMAN SACHS GROUPSold out · -13,483 sh-$35.9K
- Squarepoint OpsSold out · -12,406 sh-$33.0K
- UBS Group AGTrimmed · -12,196 sh-$32.4K
PLYX 13F holders ranked 1–13 of 13
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 1 | VANGUARD CAPITAL MANAGEMENT#1 · 1,657,872 sh | 1,657,872 | $4.4M | <0.01% | 0.0% |
| 2 | GEODE CAPITAL MANAGEMENT#2 · 170,998 sh | 170,998 | $455.1K | 0.00% | +0.2% |
| 3 | VANGUARD FIDUCIARY#3 · 105,072 sh | 105,072 | $279.5K | <0.01% | +0.5% |
| 4 | HRT FINANCIAL#4 · 82,094 sh | 82,094 | $218.0K | <0.01% | New |
| 5 | STATE STREET#5 · 58,104 sh | 58,104 | $154.6K | 0.00% | 0.0% |
| 6 | BlackRock#6 · 41,012 sh | 41,012 | $109.1K | 0.00% | 0.0% |
| 7 | JANE STREET GROUP#7 · 31,441 sh | 31,441 | $83.6K | 0.00% | New |
| 8 | NORTHERN#8 · 27,987 sh | 27,987 | $74.4K | 0.00% | 0.0% |
| 9 | Allworth Financial#9 · 7,727 sh | 7,727 | $20.6K | <0.01% | New |
| 10 | Vanguard Global Advisers#10 · 6,318 sh | 6,318 | $16.8K | 0.00% | 0.0% |
| 11 | Tower Research Capital (TRC)#11 · 3,002 sh | 3,002 | $8.0K | <0.01% | +68.6% |
| 12 | UBS Group AG#12 · 1,283 sh | 1,283 | $3.4K | 0.00% | -90.5% |
| 13 | Fortitude Family Office#13 · 189 sh | 189 | $503.00 | — | New |
Funds that sold out of PLYX in Q2 2026 (5)
Held PLYX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.
| Institution | Shares sold | Value in Q1 2026 |
|---|---|---|
| MILLENNIUM MANAGEMENT127,525 sh | 127,525 | $964.1K |
| BANK OF AMERICA25,881 sh | 25,881 | $195.7K |
| GOLDMAN SACHS GROUP13,483 sh | 13,483 | $101.9K |
| Squarepoint Ops12,406 sh | 12,406 | $93.8K |
| MORGAN STANLEY5,543 sh | 5,543 | $41.9K |
Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.