Oscar Health, Inc. (OSCR) Insider Trading

Over the last 3 months, OSCR insiders made 0 open-market buys and 33 sales, a net sale of -$126.7M (SEC Form 4). Over the last 6 months, 256 institutions increased and 222 reduced their position (13F).

Insider Activity

Sentiment
0/100
Buys (3m)
0
Sells (3m)
33
Net (3m)
-$126.7M
Insider trades by month Buys Sells
Mar
Apr
May
Jun
Jul
Aug
Context3-month price +29.9%Institutions accumulating (13F)
DateInsiderTypeSharesPrice
Aug 31, 2026Schlosser MariodirectorOption150,000$9.75
Aug 31, 2026Schlosser MariodirectorSell600,000$30.34
Aug 31, 2026Schlosser MariodirectorSell150,000$30.79
Aug 31, 2026Schlosser MariodirectorOption600,000$9.75
Aug 20, 2026Blackley Richard Scottofficer: Chief Financial OfficerSell18,750$31.74
Jul 13, 2026Gassen WilliamdirectorGrant684—
Jul 13, 2026Sankaran SiddirectorGrant858—
Jul 13, 2026Plouffe DaviddirectorGrant681—
Jul 6, 2026Schlosser MariodirectorSell13,672$30.80
Jul 6, 2026Schlosser MariodirectorSell3,600$29.50
Jul 6, 2026Schlosser MariodirectorSell30,228$31.65
Jul 1, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell488,654$28.35
Jul 1, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell58,926$30.08
Jul 1, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell135,590$28.97
Jul 1, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell555,826$29.17
Jun 29, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell441,373$29.11
Jun 29, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell149,795$29.79
Jun 29, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell597,942$28.60
Jun 29, 2026Bertolini Mark Tdirector, officer: Chief Executive OfficerSell17,200$29.08
Jun 25, 2026Schlosser MariodirectorSell31,912$29.58
Jun 25, 2026Schlosser MariodirectorOption660,000$9.75
Jun 25, 2026Schlosser MariodirectorSell16,306$28.95
Jun 25, 2026Schlosser MariodirectorSell33,592$29.58
Jun 25, 2026Schlosser MariodirectorSell591,213$29.58
Jun 25, 2026Schlosser MariodirectorSell15,491$28.95
Jun 25, 2026Schlosser MariodirectorSell286,988$28.95
Jun 25, 2026Schlosser MariodirectorSell97$30.09
Jun 25, 2026Schlosser MariodirectorSell16,307$28.95
Jun 25, 2026Schlosser MariodirectorSell1,799$30.09
Jun 8, 2026Plouffe DaviddirectorGrant8,475—

Source: OSCR SEC Form 4 filings, latest Aug 31, 2026. For informational purposes only — not investment advice.

Institutional activity (13F)

How institutions changed their OSCR positions over the last 6 months (SEC Form 13F).

Increased
256
New positions
190
Reduced
222
Sold out
51
Largest moves
InstitutionActionSharesFiled
BlackRock, Inc.Increased20.6MAug 7, 2026
BLACKROCK, INC.Increased17.3MMay 13, 2026
T. Rowe Price Investment Management, Inc.Increased13.0MAug 14, 2026
D. E. Shaw & Co., Inc.Increased12.8MAug 14, 2026
T. ROWE PRICE INVESTMENT MANAGEMENT, INC.Reduced11.6MMay 15, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCIncreased11.0MAug 13, 2026
VANGUARD CAPITAL MANAGEMENT LLCNew Position10.8MMay 15, 2026
VANGUARD CAPITAL MANAGEMENT LLCReduced10.6MAug 13, 2026
VANGUARD PORTFOLIO MANAGEMENT LLCNew Position10.5MMay 8, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLPReduced9.7MMay 15, 2026
JANE STREET GROUP, LLCIncreased9.4MAug 14, 2026
AMERICAN CENTURY COMPANIES INCIncreased9.1MAug 12, 2026
CITADEL ADVISORS LLCIncreased8.3MAug 14, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLPReduced8.1MAug 14, 2026
CITADEL ADVISORS LLCReduced7.8MMay 15, 2026

Source: SEC Form 13F filings. For informational purposes only — not investment advice.

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