INSM — INSMED IncToday's name, from the SEC's present-day ticker list — a present-day mapping, not the name as of each filing.

Congress trades
10
all time
Members · 12m
1
0 buys · 1 sells · by trade date
Latest filing
07-07
2026-07-07
Rows filed past the STOCK Act's 45-day window, stated on the row, never editorialised; both dates and the receipt stay on every row.
1
13F holders
505
top 500 listed · 2026-03-31
Congress: statutory ranges, filed up to 45 days after the trade · 13F: quarter-end snapshots, filed up to 45 days lateras of 2026-10-29
Congress 10Institutional 500

Congress · disclosure timeline

By trade date · 24 months · 7 rows ▲ buy, ▼ sell; height = lower bound (log scale). Trade date, not filing date — the filing lag is in the table below.

7 dated disclosures in the window, placed by trade date; magnitudes are the disclosed lower bounds, against gridlines at $15K, $250K, $5M.

Members active in INSM

12 months · most active first Rows = number of disclosures, not dollars. Net = lower bound of the net range. Committees as of each member's latest trade in the window (roster snapshot 2026-10-29).
Members disclosing INSM in the trailing 12 months
MemberRowsNet disclosed flow for this ticker: purchases minus sales, computed as a net range on the disclosed amounts. A lower bound is provable, never a point.Number of committees the member sat on as of their latest trade date in the window, from the cc0-legislators roster snapshot. Context, never an allegation; jurisdiction overlap needs the sector join.
Josh Gottheimer D–NJ-51−$15.0K to −$1.0K2

1 member

Congressional disclosures

Newest filed firstAll 10 rows ↗
Latest congressional filings mentioning INSM
FiledMemberSide · OwnerTraded · LagAmountRange · FlagsSrc
2026-07-07Josh Gottheimer D–NJ-5SELL partial · JT (partial sale, jointly owned)Traded 06-10 +27d$1K–$15K
2025-11-18Gilbert Ray Cisneros, Jr. D–CA-31SELLTraded 10-03 LATE·46d$1K–$15K
2025-10-10Gilbert Ray Cisneros, Jr. D–CA-31SELL partial (partial sale)Traded 09-22 +18d$1K–$15K
2025-09-12Gilbert Ray Cisneros, Jr. D–CA-31SELL partial (partial sale)Traded 08-08 +35d$1K–$15K
2025-08-14Gilbert Ray Cisneros, Jr. D–CA-31SELL partial (partial sale)Traded 07-07 +38d$1K–$15K
2025-07-16Josh Gottheimer D–NJ-5BUY JT (jointly owned)Traded 06-16 +30d$1K–$15K
2025-05-14Josh Gottheimer D–NJ-5SELL partial · JT (partial sale, jointly owned)Traded 04-09 +35d$1K–$15K
2024-07-09Josh Gottheimer D–NJ-5SELL partial · JT (partial sale, jointly owned)Traded 06-21 +18d$1K–$15K
2024-06-08Josh Gottheimer D–NJ-5SELL partial · JT (partial sale, jointly owned)Traded 05-28 +11d$1K–$15K
2023-01-13Josh Gottheimer D–NJ-5BUY JT (jointly owned)Traded 2022-12-06 +38d$1K–$15K

13F holders · Quarter ended 2026-03-31Newest filing in this build: 2026-07-31. Per-row filing dates are on each receipt. · longs only

Top institutional holders of INSM for quarter 2026-03-31, 1–25 of 505 holders
#FilerValueSecuritiesFlagsderived by Public Filings from this build's reviewed ticker-mapping holders list for this share class; that list carries each holder's share count, share change and filed date, which this table does not show, but no document links — the EDGAR link opens the filer's 13F list·§
1JPMORGAN CHASE & CO$3.7B1
derived ·§ EDGAR ↗
2BlackRock, Inc.$2.7B1
derived ·§ EDGAR ↗
3Darwin Global Management, Ltd.$2.6B1
derived ·§ EDGAR ↗
4FMR LLC$2.2B1
derived ·§ EDGAR ↗
5VANGUARD PORTFOLIO MANAGEMENT LLC$1.7B1
derived ·§ EDGAR ↗
6VANGUARD CAPITAL MANAGEMENT LLC$1.6B1
derived ·§ EDGAR ↗
7BAKER BROS. ADVISORS LP$1.2B1
derived ·§ EDGAR ↗
8Artisan Partners Limited Partnership$1.1B1
derived ·§ EDGAR ↗
9D. E. Shaw & Co., Inc.$920M1
derived ·§ EDGAR ↗
10Capital International Investors$915M1
derived ·§ EDGAR ↗
11STATE STREET CORP$908M1
derived ·§ EDGAR ↗
12RTW INVESTMENTS, LP$792M1
derived ·§ EDGAR ↗
13GEODE CAPITAL MANAGEMENT, LLC$733M1
derived ·§ EDGAR ↗
14FRANKLIN RESOURCES INC$428M1
derived ·§ EDGAR ↗
15CITADEL ADVISORS LLC$357M1
derived ·§ EDGAR ↗
16Invesco Ltd.$325M1
derived ·§ EDGAR ↗
17Orbis Allan Gray Ltd$306M1
derived ·§ EDGAR ↗
18UBS Group AG$284M1
derived ·§ EDGAR ↗
19BANK OF AMERICA CORP /DE/$246M1
derived ·§ EDGAR ↗
20Integral Health Asset Management, LLC$245M1
derived ·§ EDGAR ↗
21WESTFIELD CAPITAL MANAGEMENT CO LP$240M1
derived ·§ EDGAR ↗
22SEI INVESTMENTS CO$228M1
derived ·§ EDGAR ↗
23Capital World Investors$223M1
derived ·§ EDGAR ↗
24VANGUARD FIDUCIARY TRUST CO$221M1
derived ·§ EDGAR ↗
25MORGAN STANLEY$218M1
derived ·§ EDGAR ↗
Show the top 500 of 505 holders
Truncated by Public Filings. Top 500 of 505 holders shown; the rest are on EDGAR. Method ↗

Crowding — not available in this build. No holder rows for the selected period, so no percentile can be ranked.

Congress ↔ notable managers · INSM

Congress · last 90 days

Buyers
0 — —
Sellers
0 — —

filed 2026-07-31 → 2026-10-29 · statutory ranges

Notable managers · quarter ended 2026-03-31

Adding
1 Bridgewater Associates $48.3M held

by shares · $ = value heldNEW + ADD vs TRIM + EXIT, by share count. $ = reported value now, not the change. · INSMED INC

Merged timeline of congressional filings and notable-manager moves on INSM
DateWhoChangeSize
2026-05-15Bridgewater Associates 13FNEW+295,579 sh
2026-05-15Gotham Asset Management 13FTRIM−11,752 sh
2026-05-15Duquesne Family Office 13FTRIM−327,662 sh

3 newest, by filing date · 13F rows are quarter-end snapshots, not trades

Congress vs filers

12 months
Congress net (rows)0 buy / 1 sell
Congress net ($ bound)−$15.0K to −$1.0K
Filersnot computedThe filer side needs per-issuer quarter-over-quarter actions, which the published aggregate does not carry for this issuer. Convergence and divergence are stated only when both sides are computed.