Latest filingAug 31, 2026Most recent Form 4
OSCR
Oscar Health, Inc.
NYSEFinancialsHospital & Medical Service Plans
Insider activity for last month from 08/03 to 09/03. Counts use processed Form 4 rows. Purchase and sale metrics use codes P and S; totals remain unknown when any matching value is missing. Rows without a usable transaction date cannot be assigned to a rolling period and are excluded.
Total buying$00 buys
Total selling$2.34B3 sells
Net open-market-$2.34B2 insiders
Open-market mix
Buy vs sell distribution by transaction countInsider activity report
Monthly open-market purchase and sale counts Buys Sells
Transaction codes
By Form 4 transaction code in selected period11transactions
- C · Code C · dominant4 · 36%
- M · Option exercise4 · 36%
- S · Open-market sells3 · 27%
Activity by reported role
A joint filing can contribute to multiple roles11transactions
- Director · dominant10 · 91%
- Chief financial officer1 · 9%
Distinct insiders active
Reporting-owner CIKs by month · peak Aug 2026 (2)Aug 2026Sep 2026
Reported Holdings After
Separated by insider, security, and ownership typeSchlosser MarioClass B Common Stock · Direct
1,212,293Aug 28, 2026
Schlosser MarioClass A Common Stock · Direct
480,866Aug 28, 2026
Schlosser MarioStock Option (Right to Buy) · Direct
2,990,000Aug 28, 2026
Blackley Richard ScottClass A Common Stock · Indirect · By MQB Irrevocable Trust
56,250Aug 18, 2026
These are reported post-transaction holdings, not company-wide ownership percentages. Securities, indirect vehicles, and amendments are kept separate.
Filing activity heatmap
Each cell is one day · intensity = transactions · buys green, sells redAug 03 → Sep 03
LessMore
Top insiders
By absolute net value across the selected period- SM-$15.5M
- BS-$595.1k
Recent filing activity
Most recent 11 transactions · color = transaction codeFiling detail checks
Secondary metrics for the selected periodFiling-only signals
Deterministic matches in the selected period
OSCR transaction history
Filters apply within this company and selected period by default| Ticker | Insider | Role | Type | Shares | Value | Code | Signals | 90d return | Filed | Trans date |
|---|---|---|---|---|---|---|---|---|---|---|
| OSCR | Schlosser Mario | DIR | unknown | 150k | $0 | C | 0.0% | 08/31 | 08/28 | |
| OSCR | Schlosser Mario | DIR | exercise | 150k | $146M | M | 0.0% | 08/31 | 08/28 | |
| OSCR | Schlosser Mario | DIR | exercise | 150k | $0 | M | 0.0% | 08/31 | 08/28 | |
| OSCR | Schlosser Mario | DIR | unknown | 600k | $0 | C | 0.0% | 08/31 | 08/27 | |
| OSCR | Schlosser Mario | DIR | exercise | 600k | $585M | M | 0.0% | 08/31 | 08/27 | |
| OSCR | Schlosser Mario | DIR | exercise | 600k | $0 | M | 0.0% | 08/31 | 08/27 | |
| OSCR | Schlosser Mario | DIR | sale | 150k | -$461M | S | 0.0% | 08/31 | 08/28 | |
| OSCR | Schlosser Mario | DIR | unknown | 150k | — | C | 0.0% | 08/31 | 08/28 | |
| OSCR | Schlosser Mario | DIR | sale | 600k | -$1.82B | S | 0.0% | 08/31 | 08/27 | |
| OSCR | Schlosser Mario | DIR | unknown | 600k | — | C | 0.0% | 08/31 | 08/27 | |
| OSCR | Blackley Richard Scott | CFO | sale | 18.7k | -$59.5M | S | −5.5% | 08/20 | 08/18 |
Oscar Health, Inc. Insider Activity FAQ
SEC Form 4 contextWho recently reported transactions at Oscar Health, Inc.?
Schlosser Mario, Blackley Richard Scott.
When was the latest reported open-market purchase?
No code-P purchase is available for this period.
When was the latest reported open-market sale?
Schlosser Mario reported a sale on Aug 28, 2026 valued at $461M. Read the SEC filing.
What is the recent purchase and sale balance?
Net open-market selling in the selected period was $23,417,625.00. Sales can occur for many non-investment reasons.
Where can I see the original SEC filing?
Every transaction row and latest-activity fact links to its original SEC filing.
What do these Form 4 transaction codes mean?
P and S generally describe open-market or private purchases and sales. A, D, F, M, X, G, J, and V describe awards, issuer dispositions, tax withholding, exercises, gifts, other transactions, and voluntary early reports; review each filing and its footnotes for context.