Mesa Laboratories Inc: which funds bought and sold
Institutions that bought and sold Mesa Laboratories 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, 92 institutions that filed 13F reports for both quarters added to or opened positions in Mesa Laboratories, and 56 cut or closed them. Together they added a net 251K shares, +5.3% on what they held at the start of the quarter. Active managers and hedge funds on our list were net buyers of 61K shares (+3.4%); index fund managers were net buyers of 72K shares (+6.5%). 19 opened a new position and 18 sold out entirely.
Bought, Q2 2026 92 institutions, 19 of them new holders Sold, Q2 2026 56 institutions, 18 of them sold out
Net change, all compared +251K shares (+5.3%)
Net change, active managers +61K shares (+3.4%), 21 bought, 16 sold
Buyers versus sellers
92 bought 26 56 sold
Active managers and hedge funds 21 bought · 16 sold · +61K
Index fund managers 7 bought · 2 sold · +72K
Other institutions 64 bought · 38 sold · +118K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Jacobs Levy Equity Management, Inc Active manager | +86K +194.6% | 131K | $13M |
| FMR LLC Active manager | +82K +1273.4% | 89K | $8.8M |
| Jane Street Group, LLC | +72K New position | 72K | $7.1M |
| Long Path Partners LP | +72K +17.6% | 477K | $47.5M |
| Wasatch Advisors LP Active manager | +64K +125.8% | 116K | $11.5M |
| Blackrock, Inc. Index funds | +47K +11.9% | 441K | $43.9M |
| Qube Research & Technologies Ltd Hedge fund | +37K New position | 37K | $3.7M |
| AQR Capital Management LLC Hedge fund | +33K +19.5% | 204K | $20.3M |
| Citadel Advisors LLC Hedge fund | +27K +326.1% | 36K | $3.6M |
| D. E. Shaw & Co., Inc. Hedge fund | +27K +49.8% | 82K | $8.1M |
| Raymond James Financial Inc | +27K +22.0% | 150K | $14.9M |
| Dimensional Fund Advisors LP | +24K +19.1% | 148K | $14.8M |
| Man Group PLC Hedge fund | +22K +871.7% | 24K | $2.4M |
| Vanguard Portfolio Management LLC Index funds | +17K +31.9% | 69K | $6.9M |
| Nfj Investment Group, LLC | +14K New position | 14K | $1.4M |
| Two Sigma Investments, LP Hedge fund | +13K +78.7% | 29K | $2.9M |
| Wells Fargo & Company | +12K +650.8% | 14K | $1.4M |
| Geode Capital Management, LLC Index funds | +12K +9.1% | 140K | $13.9M |
| Xtx Topco Ltd | +11K +181.8% | 17K | $1.7M |
| Engineers Gate Manager LP Hedge fund | +11K +291.2% | 15K | $1.5M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Jacobs Levy Equity Management, Inc Active manager | +86K +194.6% | 131K | $13M |
| FMR LLC Active manager | +82K +1273.4% | 89K | $8.8M |
| Wasatch Advisors LP Active manager | +64K +125.8% | 116K | $11.5M |
| Qube Research & Technologies Ltd Hedge fund | +37K New position | 37K | $3.7M |
| AQR Capital Management LLC Hedge fund | +33K +19.5% | 204K | $20.3M |
| Citadel Advisors LLC Hedge fund | +27K +326.1% | 36K | $3.6M |
| D. E. Shaw & Co., Inc. Hedge fund | +27K +49.8% | 82K | $8.1M |
| Man Group PLC Hedge fund | +22K +871.7% | 24K | $2.4M |
| Two Sigma Investments, LP Hedge fund | +13K +78.7% | 29K | $2.9M |
| Engineers Gate Manager LP Hedge fund | +11K +291.2% | 15K | $1.5M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Select Equity Group, L.P. Active manager | −236K Sold out | 0 | — |
| Roubaix Capital, LLC | −72K Sold out | 0 | — |
| Royce & Associates LP Active manager | −48K −29.7% | 113K | $11.3M |
| Monimus Capital Management, LP | −46K −45.4% | 55K | $5.5M |
| Ranger Investment Management, L.P. Active manager | −29K −14.3% | 174K | $17.3M |
| Lazard Asset Management LLC Active manager | −20K Sold out | 0 | — |
| Trexquant Investment LP Hedge fund | −19K Sold out | 0 | — |
| Public Employees Retirement System Of Ohio | −14K Sold out | 0 | — |
| Russell Investments Group, Ltd. | −13K −9.8% | 122K | $12.1M |
| Connor, Clark & Lunn Investment Management Ltd. | −9,517 Sold out | 0 | — |
| Charles Schwab Investment Management Inc Index funds | −7,961 −12.8% | 54K | $5.4M |
| Bank Of America Corp | −7,919 −13.7% | 50K | $5M |
| Herald Investment Management Ltd | −7,500 −15.0% | 43K | $4.2M |
| Tudor Investment Corp Et Al Hedge fund | −6,874 Sold out | 0 | — |
| Centerbook Partners LP Hedge fund | −6,455 −45.5% | 7,739 | $770,417 |
| Goldman Sachs Group Inc | −6,295 −8.9% | 64K | $6.4M |
| Morgan Stanley | −5,137 −3.2% | 157K | $15.6M |
| UBS Group AG | −4,273 −35.5% | 7,773 | $773,802 |
| Inceptionr LLC | −4,078 Sold out | 0 | — |
| Kennedy Capital Management LLC Active manager | −4,042 −2.8% | 138K | $13.8M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Select Equity Group, L.P. Active manager | −236K Sold out | 0 | — |
| Royce & Associates LP Active manager | −48K −29.7% | 113K | $11.3M |
| Ranger Investment Management, L.P. Active manager | −29K −14.3% | 174K | $17.3M |
| Lazard Asset Management LLC Active manager | −20K Sold out | 0 | — |
| Trexquant Investment LP Hedge fund | −19K Sold out | 0 | — |
| Tudor Investment Corp Et Al Hedge fund | −6,874 Sold out | 0 | — |
| Centerbook Partners LP Hedge fund | −6,455 −45.5% | 7,739 | $770,417 |
| Kennedy Capital Management LLC Active manager | −4,042 −2.8% | 138K | $13.8M |
| Acadian Asset Management LLC Active manager | −3,863 Sold out | 0 | — |
| Boston Partners Active manager | −3,562 −1.3% | 265K | $26.4M |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| Jane Street Group, LLC | 72K | $7.1M |
| Qube Research & Technologies LtdHedge fund | 37K | $3.7M |
| Nfj Investment Group, LLC | 14K | $1.4M |
| Marshall Wace, LLPHedge fund | 8,740 | $870,068 |
| Cm Wealth Advisors LLC | 8,341 | $830,347 |
| Brevan Howard Capital Management LPHedge fund | 4,489 | $446,880 |
| Magnetar Financial LLCHedge fund | 4,139 | $412,037 |
| Strs Ohio | 3,700 | $368,335 |
| Seizert Capital Partners, LLC | 3,446 | $343,049 |
| Prelude Capital Management, LLC | 3,141 | $312,687 |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| Select Equity Group, L.P.Active manager | 236K | $20.9M |
| Roubaix Capital, LLC | 72K | $6.4M |
| Lazard Asset Management LLCActive manager | 20K | $1.8M |
| Trexquant Investment LPHedge fund | 19K | $1.7M |
| Public Employees Retirement System Of Ohio | 14K | $1.2M |
| Connor, Clark & Lunn Investment Management Ltd. | 9,517 | $841,493 |
| Tudor Investment Corp Et AlHedge fund | 6,874 | $607,799 |
| Inceptionr LLC | 4,078 | $360,577 |
| Acadian Asset Management LLCActive manager | 3,863 | $341,000 |
| Entrypoint Capital, LLC | 3,469 | $306,729 |
Who holds the shares
- Institutions reporting
- 158
- Ten largest holders
- 48.1% of 13F-reported shares
- Index fund managers
- 23.5% of 13F-reported shares
- Active managers and hedge funds
- 37.2% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 21 | 16 | 4 | 6 | +61K | +3.4% |
| Index fund managers | 7 | 2 | 0 | 0 | +72K | +6.5% |
| Other institutions | 64 | 38 | 15 | 12 | +118K | +6.5% |