INSMED Inc - Common Stock, par value $0.01 per share (INSM)

CUSIP: 457669307

Q2 2025 13F Holders as of 30 Jun 2025

Type / Class
Equity / Common Stock, par value $0.01 per share
Shares outstanding
215,451,077
Total 13F shares
210,375,071
Share change
+12,287,401
Total reported value
$21,148,644,502
Put/Call ratio
122%
Price per share
$100.64
Number of holders
513
Value change
+$1,358,877,009
Number of buys
295
Number of sells
238

Security key

457669307

Report period

Q2 2025

Institutions

513

Top holders

10

Ownership snapshot

Top shareholders of INSM - INSMED Inc - Common Stock, par value $0.01 per share (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Lead holder
VANGUARD GROUP INC
13D/G signal
Evidence rows
50
Latest as of
31 Mar 2025
13F Lead comparable stake: 8.5% Showing first 8 of 50 holder rows. Open remaining rows
Holder Evidence Ownership % Position 12M Net Δ As of
VANGUARD GROUP INC
13F
Company
13F
8.5%
$1,393,675,028
18,268,122 shares
31 Mar 2025
BlackRock, Inc.
13F
Company
13F
7.4%
$1,224,369,208
16,048,882 shares
31 Mar 2025
Darwin Global Management, Ltd.
13F
Company
13F
7.1%
$1,200,888,070
15,397,975 shares
31 Mar 2025
PRICE T ROWE ASSOCIATES INC /MD/
13F
Company
13F
6%
$985,938,000
12,923,541 shares
31 Mar 2025
Capital International Investors
13F
Company
13F
3.3%
$549,172,421
7,198,485 shares
31 Mar 2025
JPMORGAN CHASE & CO
13F
Company
13F
2.9%
$484,748,355
6,354,022 shares
31 Mar 2025
STATE STREET CORP
13F
Company
13F
2.7%
$438,460,983
5,747,293 shares
31 Mar 2025
BAKER BROS. ADVISORS LP
13F
Company
13F
2.5%
$410,487,958
5,380,626 shares
31 Mar 2025
Show 42 additional holder rows in the full holder list
Holder Evidence Ownership % Position 12M Net Δ As of
GEODE CAPITAL MANAGEMENT, LLC
13F
Company
13F
2%
$327,261,543
4,288,735 shares
31 Mar 2025
ADAGE CAPITAL PARTNERS GP, L.L.C.
13F
Company
13F
1.6%
$262,967,358
3,446,944 shares
31 Mar 2025
FMR LLC
13F
Company
13F
1.6%
$258,957,551
3,394,384 shares
31 Mar 2025
Artisan Partners Limited Partnership
13F
Company
13F
1.5%
$245,445,376
3,217,268 shares
31 Mar 2025
RTW INVESTMENTS, LP
13F
Company
13F
1.4%
$229,980,630
3,014,558 shares
31 Mar 2025
AMERIPRISE FINANCIAL INC
13F
Company
13F
1.4%
$225,165,920
2,951,622 shares
31 Mar 2025
ALLIANCEBERNSTEIN L.P.
13F
Company
13F
1.1%
$184,889,807
2,423,513 shares
31 Mar 2025
FIL Ltd
13F
Company
13F
1.1%
$182,348,434
2,390,201 shares
31 Mar 2025
MACQUARIE GROUP LTD
13F
Company
13F
1.1%
$180,205,000
2,362,105 shares
31 Mar 2025
WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC
13F
Company
13F
1.1%
$176,475,325
2,313,217 shares
31 Mar 2025
FRANKLIN RESOURCES INC
13F
Company
13F
1%
$163,892,620
2,148,284 shares
31 Mar 2025
Holocene Advisors, LP
13F
Company
13F
0.94%
$154,595,734
2,026,422 shares
31 Mar 2025
Pictet Asset Management Holding SA
13F
Company
13F
0.93%
$153,853,350
2,013,329 shares
31 Mar 2025
Clearbridge Investments, LLC
13F
Company
13F
0.85%
$139,513,631
1,828,728 shares
31 Mar 2025
Invesco Ltd.
13F
Company
13F
0.83%
$136,660,074
1,791,324 shares
31 Mar 2025
PRINCIPAL FINANCIAL GROUP INC
13F
Company
13F
0.81%
$133,917,407
1,755,373 shares
31 Mar 2025
NORGES BANK
13F
Company
13F
0.81%
$132,961,492
1,742,843 shares
31 Mar 2025
NORTHERN TRUST CORP
13F
Company
13F
0.78%
$128,460,000
1,683,838 shares
31 Mar 2025
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
13F
Company
13F
0.74%
$122,266,550
1,602,655 shares
31 Mar 2025
Hood River Capital Management LLC
13F
Company
13F
0.72%
$118,881,639
1,558,286 shares
31 Mar 2025
Integral Health Asset Management, LLC
13F
Company
13F
0.72%
$118,249,500
1,550,000 shares
31 Mar 2025
JANUS HENDERSON GROUP PLC
13F
Company
13F
0.72%
$120,528,826
1,545,419 shares
31 Mar 2025
SUVRETTA CAPITAL MANAGEMENT, LLC
13F
Company
13F
0.69%
$113,853,899
1,492,383 shares
31 Mar 2025
T. Rowe Price Investment Management, Inc.
13F
Company
13F
0.69%
$112,677,000
1,476,948 shares
31 Mar 2025
WESTFIELD CAPITAL MANAGEMENT CO LP
13F
Company
13F
0.65%
$107,310,201
1,406,609 shares
31 Mar 2025
GOLDMAN SACHS GROUP INC
13F
Company
13F
0.65%
$107,005,957
1,402,621 shares
31 Mar 2025
GW&K Investment Management, LLC
13F
Company
13F
0.64%
$105,107,000
1,377,726 shares
31 Mar 2025
Duquesne Family Office LLC
13F
Company
13F
0.64%
$104,445,000
1,369,050 shares
31 Mar 2025
BANK OF AMERICA CORP /DE/
13F
Company
13F
0.63%
$103,220,292
1,352,999 shares
31 Mar 2025
LORD, ABBETT & CO. LLC
13F
Company
13F
0.63%
$103,036,000
1,350,587 shares
31 Mar 2025
WELLINGTON MANAGEMENT GROUP LLP
13F
Company
13F
0.57%
$93,274,214
1,222,627 shares
31 Mar 2025
EVENTIDE ASSET MANAGEMENT, LLC
13F
Company
13F
0.55%
$90,155,759
1,181,675 shares
31 Mar 2025
Nuveen, LLC
13F
Company
13F
0.54%
$88,350,991
1,158,094 shares
31 Mar 2025
Bank of New York Mellon Corp
13F
Company
13F
0.54%
$88,248,450
1,156,750 shares
31 Mar 2025
Vestal Point Capital, LP
13F
Company
13F
0.5%
$82,011,750
1,075,000 shares
31 Mar 2025
TimesSquare Capital Management, LLC
13F
Company
13F
0.49%
$81,183,851
1,064,148 shares
31 Mar 2025
MORGAN STANLEY
13F
Company
13F
0.49%
$80,841,300
1,059,656 shares
31 Mar 2025
LOOMIS SAYLES & CO L P
13F
Company
13F
0.47%
$77,012,000
1,009,466 shares
31 Mar 2025
Palo Alto Investors LP
13F
Company
13F
0.46%
$75,309,902
987,153 shares
31 Mar 2025
AMERICAN CENTURY COMPANIES INC
13F
Company
13F
0.4%
$66,534,413
872,123 shares
31 Mar 2025
JENNISON ASSOCIATES LLC
13F
Company
13F
0.35%
$57,088,799
748,313 shares
31 Mar 2025
Alyeska Investment Group, L.P.
13F
Company
13F
0.34%
$56,073,150
735,000 shares
31 Mar 2025
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

13F holder rows

Institutional holders as of Q2 2025

Investor-level positions for this CUSIP, loaded as an interactive table.

Institutions
513
Shares
210,375,071
Rows loaded
516
Investor Option Weight % Change % Reported value * Price Shares Share Change Activity Report Period

* Reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. An asterisk next to the price means the price is likely invalid.

Compare Q2 2025 vs Q1 2025 Across Filers

Q1 2025 holders
436
Q2 2025 holders
513
Holder diff
77
Investor Q1 2025 Shares Q2 2025 Shares Share Diff Share Chg % Q1 2025 value Q2 2025 value Value change Value Chg %

Trend: ostatnie 8 kwartałów (+ wybrane okresy porównania).

Quarterly Holders Trend
Quarterly Value Trend
Quarterly Shares Trend
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