Werewolf Therapeutics, Inc.: which funds bought and sold
Institutions that bought and sold Werewolf Therapeutics shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 18 institutions that filed 13F reports for both quarters added to or opened positions in Werewolf Therapeutics, and 21 cut or closed them. Together they sold a net 3.1M shares, −22.4% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 2.4M shares (−31.6%); index fund managers were net sellers of 54K shares (−2.6%). 9 opened a new position and 12 sold out entirely.
Bought, Q2 2026 18 institutions, 9 of them new holders Sold, Q2 2026 21 institutions, 12 of them sold out
Net change, all compared −3.1M shares (−22.4%)
Net change, active managers −2.4M shares (−31.6%), 4 bought, 5 sold
Buyers versus sellers
18 bought 18 21 sold
Active managers and hedge funds 4 bought · 5 sold · −2.4M
Index fund managers 0 bought · 2 sold · −54K
Other institutions 14 bought · 14 sold · −710K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Balyasny Asset Management L.P. Hedge fund | +1.8M New position | 1.8M | $644,253 |
| Verdad Advisers, LP | +319K +1071.7% | 349K | $125,500 |
| Xtx Topco Ltd | +221K +433.1% | 271K | $97,705 |
| Jane Street Group, LLC | +169K +204.0% | 252K | $90,637 |
| Renaissance Technologies LLC Hedge fund | +158K +30.7% | 675K | $242,800 |
| UBS Group AG | +149K +222.8% | 216K | $77,702 |
| Squarepoint Ops LLC Hedge fund | +103K New position | 103K | $37,157 |
| Rangeley Capital, LLC | +100K New position | 100K | $35,990 |
| Bank Of America Corp | +47K +17.7% | 312K | $111,829 |
| Virtu Financial LLC | +45K New position | 45K | $16,000 |
| Two Sigma Investments, LP Hedge fund | +27K New position | 27K | $9,825 |
| Gsa Capital Partners LLP | +27K New position | 27K | $10,000 |
| Stonex Group Inc. | +20K New position | 20K | $9,000 |
| Marest Capital, LLC | +11K New position | 11K | $3,912 |
| Tower Research Capital LLC (TRC) | +9,897 New position | 9,897 | $3,562 |
| LPL Financial LLC | +1,791 +17.9% | 12K | $4,244 |
| Sbi Securities Co., Ltd. | +20 +25.0% | 100 | $36 |
| Jpmorgan Chase & Co | +12 +0.6% | 2,108 | $650 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Balyasny Asset Management L.P. Hedge fund | +1.8M New position | 1.8M | $644,253 |
| Renaissance Technologies LLC Hedge fund | +158K +30.7% | 675K | $242,800 |
| Squarepoint Ops LLC Hedge fund | +103K New position | 103K | $37,157 |
| Two Sigma Investments, LP Hedge fund | +27K New position | 27K | $9,825 |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| RA Capital Management, L.P. Hedge fund | −4.3M −64.3% | 2.4M | $859,349 |
| Mpm Bioimpact LLC | −1.1M −93.4% | 80K | $28,851 |
| Squadron Capital Management LLC | −564K Sold out | 0 | — |
| Bridgeway Capital Management, LLC Active manager | −77K Sold out | 0 | — |
| Millennium Management LLC Hedge fund | −70K −53.0% | 62K | $22,334 |
| Geode Capital Management, LLC Index funds | −54K −13.8% | 336K | $120,895 |
| Simplex Trading, LLC | −32K −99.2% | 255 | $91 |
| Raymond James Financial Inc | −20K Sold out | 0 | — |
| Goldman Sachs Group Inc | −18K −47.7% | 20K | $7,206 |
| HRT Financial LP | −18K Sold out | 0 | — |
| Delta Investment Management, LLC | −15K Sold out | 0 | — |
| Morgan Stanley | −15K −43.5% | 19K | $6,877 |
| Citadel Advisors LLC Hedge fund | −10K Sold out | 0 | — |
| Vanguard Global Advisers, LLC | −10K Sold out | 0 | — |
| Tfc Financial Management, Inc. | −4,500 Sold out | 0 | — |
| Citigroup Inc | −3,384 Sold out | 0 | — |
| Ranch Capital Advisors Inc. | −1,000 −8.3% | 11K | $3,959 |
| Northwestern Mutual Wealth Management Co | −200 Sold out | 0 | — |
| FMR LLC Active manager | −39 Sold out | 0 | — |
| Blackrock, Inc. Index funds | −35 0.0% | 102K | $36,556 |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| RA Capital Management, L.P. Hedge fund | −4.3M −64.3% | 2.4M | $859,349 |
| Bridgeway Capital Management, LLC Active manager | −77K Sold out | 0 | — |
| Millennium Management LLC Hedge fund | −70K −53.0% | 62K | $22,334 |
| Citadel Advisors LLC Hedge fund | −10K Sold out | 0 | — |
| FMR LLC Active manager | −39 Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Balyasny Asset Management L.P.Hedge fund | 1.8M | $644,253 |
| Squarepoint Ops LLCHedge fund | 103K | $37,157 |
| Rangeley Capital, LLC | 100K | $35,990 |
| Virtu Financial LLC | 45K | $16,000 |
| Gsa Capital Partners LLP | 27K | $10,000 |
| Two Sigma Investments, LPHedge fund | 27K | $9,825 |
| Stonex Group Inc. | 20K | $9,000 |
| Marest Capital, LLC | 11K | $3,912 |
| Tower Research Capital LLC (TRC) | 9,897 | $3,562 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Squadron Capital Management LLC | 564K | $469,199 |
| Bridgeway Capital Management, LLCActive manager | 77K | $64,110 |
| Raymond James Financial Inc | 20K | $16,467 |
| HRT Financial LP | 18K | $14,000 |
| Delta Investment Management, LLC | 15K | $12,427 |
| Citadel Advisors LLCHedge fund | 10K | $8,644 |
| Vanguard Global Advisers, LLC | 10K | $8,616 |
| Tfc Financial Management, Inc. | 4,500 | $3,747 |
| Citigroup Inc | 3,384 | $2,818 |
| Northwestern Mutual Wealth Management Co | 200 | $167 |
Who holds the shares
- Institutions reporting
- 45
- Ten largest holders
- 82.3% of 13F-reported shares
- Index fund managers
- 18.6% of 13F-reported shares
- Active managers and hedge funds
- 47.2% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 4 | 5 | 3 | 3 | −2.4M | −31.6% |
| Index fund managers | 0 | 2 | 0 | 0 | −54K | −2.6% |
| Other institutions | 14 | 14 | 6 | 9 | −710K | −16.1% |
← Back to Werewolf Therapeutics, Inc. · Insiders · Politicians