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RYTM · RHYTHM PHARMACEUTICALS, INC.

Everything on this page is public record — SEC Form 4 filings and congressional disclosures — alongside any INSIDER SCANNER research case for this company.

Open-market buys0
Open-market sells8
Research cases0
Last filing2026-09-14

Insider flow: Selling only — a count of disclosed transactions, not a rating or a recommendation.

Insider transaction timeline

Every reported transaction, positioned by trade date. Purchases sit above the axis, sales below; circle area is proportional to dollar value. No share-price line is drawn — this feed carries transaction prices only, and a price history inferred from them would imply market data the filings do not contain.

Open-market purchase Open-market sale
2026-08-31 — Smith Hunter C · sold 11,514 @ $105.37 2026-08-31 — Smith Hunter C · sold 23,072 @ $104.59 2026-08-31 — Smith Hunter C · sold 28,188 @ $106.20 2026-09-14 — Meeker David P · sold 1,817 @ $104.55 2026-09-14 — Meeker David P · sold 2,300 @ $105.19 2026-09-14 — Meeker David P · sold 30,746 @ $102.35 2026-09-14 — Meeker David P · sold 6,439 @ $101.75 2026-09-14 — Meeker David P · sold 8,698 @ $103.43
2026-08-312026-09-14

Insider participation

One row per insider, one cell per reported transaction, shaded by value. Repeat buying and activity clustered in time are visible at a glance.

Meeker David P President and CEO, Director
Smith Hunter C Chief Financial Officer
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The analysis built on top of these filings

The filings above are public record and stay public here. What an account adds for $RYTM is the reading of them — and for this company, that is what the list below says it is, no more.

  • Transaction timelineThe [{'transaction_date': '2026-09-14', 'insider_name': 'Meeker David P', 'insider_title': 'President and CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 1817.0, 'price': 104.55, 'value': 189967.35, 'is_buy': False}, {'transaction_date': '2026-09-14', 'insider_name': 'Meeker David P', 'insider_title': 'President and CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 2300.0, 'price': 105.19, 'value': 241937.0, 'is_buy': False}, {'transaction_date': '2026-09-14', 'insider_name': 'Meeker David P', 'insider_title': 'President and CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 30746.0, 'price': 102.35, 'value': 3146853.1, 'is_buy': False}, {'transaction_date': '2026-09-14', 'insider_name': 'Meeker David P', 'insider_title': 'President and CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 6439.0, 'price': 101.75, 'value': 655168.25, 'is_buy': False}, {'transaction_date': '2026-09-14', 'insider_name': 'Meeker David P', 'insider_title': 'President and CEO, Director', 'transaction_type': 'Open-market sell', 'shares': 8698.0, 'price': 103.43, 'value': 899634.14, 'is_buy': False}, {'transaction_date': '2026-08-31', 'insider_name': 'Smith Hunter C', 'insider_title': 'Chief Financial Officer', 'transaction_type': 'Open-market sell', 'shares': 11514.0, 'price': 105.37, 'value': 1213230.18, 'is_buy': False}, {'transaction_date': '2026-08-31', 'insider_name': 'Smith Hunter C', 'insider_title': 'Chief Financial Officer', 'transaction_type': 'Open-market sell', 'shares': 23072.0, 'price': 104.59, 'value': 2413100.48, 'is_buy': False}, {'transaction_date': '2026-08-31', 'insider_name': 'Smith Hunter C', 'insider_title': 'Chief Financial Officer', 'transaction_type': 'Open-market sell', 'shares': 28188.0, 'price': 106.2, 'value': 2993565.6, 'is_buy': False}] reported transactions plotted over the window rather than listed, so concentration is visible.

Not available for RYTM today: no reported open-market purchases in this window, so there is no insider cost basis to compute; no research case — nothing here has cleared the scoring threshold. Both appear on this page on their own if that changes.

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Not financial advice. This page reports public filings and past research output. It is not a recommendation to buy or sell, and no price target here is a prediction. Trade at your own risk.