INSMED Inc (INSM) — Institutional Holders, Q2 2026 (page 3)
669 institutional investment managers reported a INSM position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $23.8B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 201 to 300. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.
INSM 13F holders ranked 201–300 of 669
| # | Institution | Shares | Value | % of portfolio | QoQShares vs Q1 2026 |
|---|---|---|---|---|---|
| 201 | CULLEN/FROST BANKERS#201 · 54,740 sh | 54,740 | $5.8M | 0.06% | -1.5% |
| 202 | Zurcher Kantonalbank (Zurich Cantonalbank)#202 · 54,644 sh | 54,644 | $5.8M | 0.01% | -64.1% |
| 203 | IFM Investors Pty Ltd#203 · 53,953 sh | 53,953 | $5.8M | — | +26.2% |
| 204 | Man Group plc#204 · 52,857 sh | 52,857 | $5.6M | <0.01% | -58.3% |
| 205 | Illinois Municipal Retirement Fund#205 · 52,668 sh | 52,668 | $5.6M | 0.06% | New |
| 206 | STIFEL FINANCIAL#206 · 52,163 sh | 52,163 | $5.6M | <0.01% | -31.1% |
| 207 | Ishara Investments#207 · 51,250 sh | 51,250 | $5.5M | 4.01% | New |
| 208 | Redmile Group#208 · 51,234 sh | 51,234 | $5.5M | 0.37% | New |
| 209 | EFG International AG#209 · 50,941 sh | 50,941 | $5.4M | 0.10% | +25.6% |
| 210 | SIMON QUICK ADVISORS#210 · 50,047 sh | 50,047 | $5.3M | — | 0.0% |
| 211 | Cetera Investment Advisers#211 · 48,622 sh | 48,622 | $5.2M | <0.01% | +41.5% |
| 212 | Quadrature Capital Ltd#212 · 48,355 sh | 48,355 | $5.2M | 0.04% | New |
| 213 | XPONANCE#213 · 48,273 sh | 48,273 | $5.1M | 0.03% | +0.9% |
| 214 | BOOTHBAY FUND MANAGEMENT#214 · 47,266 sh | 47,266 | $5.0M | 0.07% | New |
| 215 | BI Asset Management Fondsmaeglerselskab A/S#215 · 46,033 sh | 46,033 | $4.9M | — | +474.8% |
| 216 | FIFTH THIRD BANCORP#216 · 45,844 sh | 45,844 | $4.9M | <0.01% | +151.9% |
| 217 | Entropy Technologies#217 · 45,469 sh | 45,469 | $4.8M | 0.19% | +949.6% |
| 218 | LAZARD ASSET MANAGEMENT#218 · 44,473 sh | 44,473 | $4.7M | <0.01% | New |
| 219 | Campbell & Investment Adviser#219 · 43,856 sh | 43,856 | $4.7M | 0.25% | New |
| 220 | LOS ANGELES CAPITAL MANAGEMENT#220 · 43,092 sh | 43,092 | $4.6M | 0.02% | +4503.8% |
| 221 | ESSEX INVESTMENT MANAGEMENT#221 · 42,991 sh | 42,991 | $4.6M | — | -31.4% |
| 222 | BROWN ADVISORY#222 · 41,694 sh | 41,694 | $4.4M | <0.01% | +81.7% |
| 223 | OFI INVEST ASSET MANAGEMENT#223 · 47,000 sh | 47,000 | $4.4M | 0.04% | New |
| 224 | Erste Asset Management GmbH#224 · 41,746 sh | 41,746 | $4.4M | 0.03% | +0.3% |
| 225 | Headlands Technologies#225 · 40,855 sh | 40,855 | $4.4M | 0.46% | +1355.0% |
| 226 | B. Metzler seel. Sohn & AG#226 · 40,521 sh | 40,521 | $4.3M | 0.04% | +3.3% |
| 227 | MUTUAL OF AMERICA CAPITAL MANAGEMENT#227 · 39,594 sh | 39,594 | $4.2M | — | +7.4% |
| 228 | ALGERT GLOBAL#228 · 39,480 sh | 39,480 | $4.2M | 0.05% | New |
| 229 | GUGGENHEIM CAPITAL#229 · 38,766 sh | 38,766 | $4.1M | 0.03% | -51.6% |
| 230 | NOMURA#230 · 36,000 sh | 36,000 | $3.8M | <0.01% | +89.0% |
| 231 | Orion Porfolio Solutions#231 · 35,467 sh | 35,467 | $3.8M | 0.03% | +2.4% |
| 232 | Korea Investment#232 · 35,429 sh | 35,429 | $3.8M | <0.01% | 0.0% |
| 233 | Militia Capital Management#233 · 35,100 sh | 35,100 | $3.7M | 0.11% | New |
| 234 | ASSETMARK#234 · 34,871 sh | 34,871 | $3.7M | — | +1.8% |
| 235 | China Universal Asset Management , Ltd.#235 · 34,496 sh | 34,496 | $3.7M | 0.22% | -26.6% |
| 236 | SILVERARC CAPITAL MANAGEMENT#236 · 34,438 sh | 34,438 | $3.7M | 0.38% | -3.9% |
| 237 | KBC Group NV#237 · 34,421 sh | 34,421 | $3.7M | — | -7.8% |
| 238 | MML INVESTORS SERVICES#238 · 32,823 sh | 32,823 | $3.5M | <0.01% | +32.5% |
| 239 | GROUP ONE TRADING, L.P.#239 · 32,654 sh | 32,654 | $3.5M | <0.01% | +259.1% |
| 240 | Utah Retirement Systems#240 · 32,484 sh | 32,484 | $3.5M | 0.03% | -4.5% |
| 241 | Tredje AP-fonden#241 · 32,407 sh | 32,407 | $3.5M | 0.02% | -57.7% |
| 242 | Quantinno Capital Management#242 · 32,163 sh | 32,163 | $3.4M | <0.01% | -9.5% |
| 243 | Police & Firemen's Retirement System of New Jersey#243 · 31,808 sh | 31,808 | $3.4M | 0.03% | -64.5% |
| 244 | BRITISH COLUMBIA INVESTMENT MANAGEMENT#244 · 31,414 sh | 31,414 | $3.3M | 0.02% | +6.9% |
| 245 | PensionDanmark Pensionsforsikringsaktieselskab#245 · 31,393 sh | 31,393 | $3.3M | — | +8.0% |
| 246 | LANDSCAPE CAPITAL MANAGEMENT, L.L.C.#246 · 31,345 sh | 31,345 | $3.3M | 0.22% | New |
| 247 | HighVista Strategies#247 · 31,256 sh | 31,256 | $3.3M | 0.76% | +28.5% |
| 248 | Arrowpoint Investment Partners (Singapore) Pte. Ltd.#248 · 30,170 sh | 30,170 | $3.2M | 0.70% | +329.9% |
| 249 | Rafferty Asset Management#249 · 30,045 sh | 30,045 | $3.2M | <0.01% | -74.1% |
| 250 | TEACHER RETIREMENT SYSTEM OF TEXAS#250 · 28,747 sh | 28,747 | $3.1M | <0.01% | -5.4% |
| 251 | TORONTO DOMINION BANK#251 · 28,611 sh | 28,611 | $3.1M | <0.01% | -0.9% |
| 252 | GordonMD Global Investments#252 · 28,587 sh | 28,587 | $3.0M | 1.47% | 0.0% |
| 253 | KVP Capital Advisors#253 · 28,497 sh | 28,497 | $3.0M | 2.23% | 0.0% |
| 254 | NISSAY ASSET MANAGEMENT /JAPAN#254 · 28,233 sh | 28,233 | $3.0M | 0.01% | -53.0% |
| 255 | Fideuram Asset Management (Ireland) dac#255 · 29,699 sh | 29,699 | $3.0M | 0.06% | +436.5% |
| 256 | Swiss Life Asset Management Ltd#256 · 27,552 sh | 27,552 | $2.9M | 0.01% | +48.9% |
| 257 | AGF MANAGEMENT LTD#257 · 27,286 sh | 27,286 | $2.9M | 0.01% | -52.5% |
| 258 | Corient Private Wealth#258 · 27,018 sh | 27,018 | $2.9M | <0.01% | -10.7% |
| 259 | National Pension Service#259 · 26,678 sh | 26,678 | $2.8M | <0.01% | -91.4% |
| 260 | Catalyst Funds Management Pty Ltd#260 · 26,200 sh | 26,200 | $2.8M | 0.16% | New |
| 261 | NEXT CENTURY GROWTH INVESTORS#261 · 26,159 sh | 26,159 | $2.8M | 0.15% | 0.0% |
| 262 | Robeco Institutional Asset Management B.V.#262 · 26,115 sh | 26,115 | $2.8M | — | +25.7% |
| 263 | Nicholas Investment Partners#263 · 25,356 sh | 25,356 | $2.7M | 0.15% | -86.1% |
| 264 | CANTOR FITZGERALD, L. P.#264 · 25,000 sh | 25,000 | $2.7M | 0.03% | +127.3% |
| 265 | OP Asset Management Ltd#265 · 24,951 sh | 24,951 | $2.7M | 0.03% | +12.3% |
| 266 | PRUDENTIAL PLC#266 · 24,458 sh | 24,458 | $2.6M | 0.01% | +204.8% |
| 267 | Atom Investors#267 · 24,374 sh | 24,374 | $2.6M | 0.23% | +54.6% |
| 268 | Pathstone#268 · 23,914 sh | 23,914 | $2.5M | <0.01% | -12.2% |
| 269 | Daiwa Securities Group#269 · 23,362 sh | 23,362 | $2.5M | <0.01% | -40.7% |
| 270 | SECTORAL ASSET MANAGEMENT#270 · 23,216 sh | 23,216 | $2.5M | 1.73% | +18.0% |
| 271 | STRS OHIO#271 · 22,827 sh | 22,827 | $2.4M | <0.01% | -56.1% |
| 272 | AXQ CAPITAL#272 · 22,813 sh | 22,813 | $2.4M | 0.26% | New |
| 273 | NORDEA INVESTMENT MANAGEMENT AB#273 · 22,855 sh | 22,855 | $2.4M | <0.01% | +2.7% |
| 274 | Allianz Asset Management GmbH#274 · 14,600 sh | 14,600 | $2.4M | <0.01% | 0.0% |
| 275 | TOBAM#275 · 22,370 sh | 22,370 | $2.4M | 0.58% | +0.3% |
| 276 | Sumitomo Mitsui DS Asset Management Company, Ltd#276 · 22,303 sh | 22,303 | $2.4M | — | 0.0% |
| 277 | ROYAL LONDON ASSET MANAGEMENT LTD#277 · 22,116 sh | 22,116 | $2.4M | <0.01% | +52.5% |
| 278 | Gotham Asset Management#278 · 21,893 sh | 21,893 | $2.3M | <0.01% | +118.7% |
| 279 | Allspring Global Investments#279 · 21,129 sh | 21,129 | $2.3M | <0.01% | -92.5% |
| 280 | Qsemble Capital Management#280 · 21,148 sh | 21,148 | $2.3M | 0.29% | New |
| 281 | BANK OF MONTREAL#281 · 20,748 sh | 20,748 | $2.2M | <0.01% | -66.8% |
| 282 | Eurizon Capital SGR S.p.A.#282 · 20,247 sh | 20,247 | $2.2M | <0.01% | +9.6% |
| 283 | 683 Capital Management#283 · 20,000 sh | 20,000 | $2.1M | 0.10% | New |
| 284 | Silvant Capital Management#284 · 19,761 sh | 19,761 | $2.1M | 0.06% | -0.7% |
| 285 | Havemeyer Place#285 · 19,121 sh | 19,121 | $2.0M | 0.20% | +53.4% |
| 286 | PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO#286 · 19,020 sh | 19,020 | $2.0M | <0.01% | 0.0% |
| 287 | Mirae Asset Global Investments , Ltd.#287 · 18,791 sh | 18,791 | $2.0M | <0.01% | -79.6% |
| 288 | SummitTX Capital, L.P.#288 · 18,751 sh | 18,751 | $2.0M | 0.05% | -19.0% |
| 289 | WCM INVESTMENT MANAGEMENT#289 · 19,033 sh | 19,033 | $2.0M | <0.01% | +21.2% |
| 290 | Cerity Partners#290 · 18,668 sh | 18,668 | $2.0M | <0.01% | -13.1% |
| 291 | THORNBURG INVESTMENT MANAGEMENT#291 · 18,413 sh | 18,413 | $2.0M | 0.02% | -52.0% |
| 292 | OSAIC#292 · 17,811 sh | 17,811 | $1.9M | <0.01% | -4.5% |
| 293 | Wealthfront Advisers#293 · 17,511 sh | 17,511 | $1.9M | <0.01% | -4.9% |
| 294 | INTECH INVESTMENT MANAGEMENT#294 · 17,177 sh | 17,177 | $1.8M | 0.02% | +153.4% |
| 295 | NATIONAL BANK OF CANADA#295 · 16,886 sh | 16,886 | $1.8M | <0.01% | -83.9% |
| 296 | AIGEN INVESTMENT MANAGEMENT#296 · 16,847 sh | 16,847 | $1.8M | 0.49% | New |
| 297 | Bridgefront Capital#297 · 16,808 sh | 16,808 | $1.8M | 0.47% | New |
| 298 | BANK OF NOVA SCOTIA#298 · 16,399 sh | 16,399 | $1.7M | <0.01% | +7.9% |
| 299 | Gulf International Bank (UK) Ltd#299 · 16,227 sh | 16,227 | $1.7M | — | -1.9% |
| 300 | OPPENHEIMER ASSET MANAGEMENT#300 · 16,061 sh | 16,061 | $1.7M | — | +9.1% |
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.