SC Filed 2019-02-12 Event — SEC 0001193125-19-034375 →

MPM BIOVENTURES V, L.P. → RHYTHM PHARMACEUTICALS, INC. RYTM

Stake: — Shares: —

Item 4 — Purpose of Transaction

Not extracted from this filing — typically because it's an amendment (13D/A) and Item 4 is unchanged from the parent filing. Read the raw SEC filing →

Cross-References

Insider Activity (last 365d)

80 transactions

17 buys · 36 sales · 22 awards/exercises

Issuer Cluster

5 13D/G filings on this issuer

4 other filings besides this one

Filer Track Record

3 filings by this filer

2 other filings in the data moat

Short Interest · settle 2026-09-30

DTC 14.14

10,767,698 shares short · +4.7% vs prior

Institutional Consensus · 2026-06-30

Held by elite portfolio managers

2 holders · $45.99M

Duquesne Family OfficePoint72 Asset Mgmt

Form 4 Insider Transactions · last 365d

Date	Insider	Role	Type	Shares	Price	Value
2026-09-14	Meeker David P	director, officer	Option exercise	50,000	$6.05	$303K
2026-09-14	Meeker David P	director, officer	Sale	6,439	$101.75	$655K
2026-09-14	Meeker David P	director, officer	Sale	30,746	$102.35	$3.15M
2026-09-14	Meeker David P	director, officer	Sale	8,698	$103.43	$900K
2026-09-14	Meeker David P	director, officer	Sale	1,817	$104.55	$190K
2026-09-14	Meeker David P	director, officer	Sale	2,300	$105.19	$242K
2026-08-13	Lee Jennifer Kayden	officer	Option exercise	35,000	$24.29	$850K
2026-08-13	Lee Jennifer Kayden	officer	Option exercise	21,601	$6.80	$147K
2026-08-13	Lee Jennifer Kayden	officer	Sale	75,834	$117.38	$8.90M
2026-08-12	Mazabraud Yann	officer	Option exercise	46,625	$6.80	$317K
2026-08-12	Mazabraud Yann	officer	Sale	2,300	$111.80	$257K
2026-08-12	Mazabraud Yann	officer	Sale	1,000	$112.86	$113K
2026-08-12	Mazabraud Yann	officer	Sale	3,605	$114.70	$413K
2026-08-12	Mazabraud Yann	officer	Sale	14,568	$115.43	$1.68M
2026-08-12	Mazabraud Yann	officer	Sale	18,208	$116.49	$2.12M
2026-08-12	Mazabraud Yann	officer	Sale	17,319	$117.47	$2.03M
2026-04-01	Mazabraud Yann	officer	Option exercise	12,875	—	—
2026-04-01	Popovits Kimberly J	director	Award	6,808	—	—
2026-04-01	Popovits Kimberly J	director	Award	10,257	$88.12	$904K
2026-04-01	Mazabraud Yann	officer	Option exercise	10,375	—	—
2026-04-01	Mazabraud Yann	officer	Option exercise	2,500	—	—
2026-03-12	Mathers Edward T	director	J	4,199	—	—
2026-03-04	German Christopher Paul	officer	Option exercise	1,500	$17.97	$27K
2026-03-04	German Christopher Paul	officer	Sale	5,614	$89.56	$503K
2026-03-02	Mazabraud Yann	officer	Award	35,000	$94.94	$3.32M

Showing 25 of 80

Other 13D/G Filings on RHYTHM PHARMACEUTICALS, INC.

Filed	Form	Filer	Stake	Shares
2026-10-13	SCHEDULE 13G	JPMORGAN CHASE & CO	—	—	view →
2020-06-26	SC	MPM BIOVENTURES V, L.P.	—	—	view →
2020-02-05	SC	MPM BIOVENTURES V, L.P.	—	—	view →
2018-02-07	SC	ORBIMED ADVISORS LLC	—	—	view →

Other Filings by MPM BIOVENTURES V, L.P.

Filed	Form	Issuer	Stake	Shares
2020-06-26	SC	RHYTHM PHARMACEUTICALS, INC. RYTM	—	—	view →
2020-02-05	SC	RHYTHM PHARMACEUTICALS, INC. RYTM	—	—	view →

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