Oaktree Acquisition Corp. III Life Sciences (OACC)
Oaktree Acquisition Corp. III Life Sciences on one page: short interest, daily short volume, fails to deliver, large holders, 13F holders and insider trades. Listed on Nasdaq.
191
Short interest
settlement 2026-09-30
1.0
Days to cover
unchanged vs prior
99.9%
Short share of volume
2026-10-23
2
Fails to deliver
settlement 2026-07-27
$0
Insider flow, 90 days
0 buys, 0 sells
As of 2026-10-23.
Short interest
FINRA, twice a month. The newest 43 settlements in the table, 43 in the chart. JSONAs of 30 September 2026, short interest in OACC is 191 shares, down 1,078 shares over the last month. Over the last 43 readings it ranged from 25 shares (15 January 2025) to 98,867 shares (31 October 2025). The latest reading sits at the bottom of that range. At the reported average volume of 9K shares a day that is 1.0 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-09-30 | 191 | -8.2% | 9,182 | 1.00 |
| 2026-09-15 | 208 | -83.6% | 43,916 | 1.00 |
| 2026-08-31 | 1,269 | -85.4% | 24,351 | 1.00 |
| 2026-08-14 | 8,695 | -12.6% | 227 | 38.30 |
| 2026-07-31 | 9,943 | -17.3% | 46,985 | 1.00 |
| 2026-07-15 | 12,020 | -0.2% | 8,819 | 1.36 |
| 2026-06-30 | 12,043 | -57.9% | 43,196 | 1.00 |
| 2026-06-15 | 28,598 | +6.8% | 6,207 | 4.61 |
| 2026-05-29 | 26,770 | -0.4% | 1,217 | 22.00 |
| 2026-05-15 | 26,870 | -0.1% | 636 | 42.25 |
| 2026-04-30 | 26,885 | -0.8% | 666 | 40.37 |
| 2026-04-15 | 27,093 | -45.5% | 30,458 | 1.00 |
| 2026-03-31 | 49,748 | -0.9% | 21,755 | 2.29 |
| 2026-03-13 | 50,189 | -0.1% | 58,968 | 1.00 |
| 2026-02-27 | 50,212 | +0.1% | 10,582 | 4.75 |
| 2026-02-13 | 50,180 | +24.4% | 15,685 | 3.20 |
| 2026-01-30 | 40,324 | -21.5% | 43,196 | 1.00 |
| 2026-01-15 | 51,341 | -10.6% | 44,479 | 1.15 |
| 2025-12-31 | 57,398 | +3.3% | 18,731 | 3.06 |
| 2025-12-15 | 55,556 | -1.7% | 25,199 | 2.20 |
| 2025-11-28 | 56,506 | -41.6% | 106,419 | 1.00 |
| 2025-11-14 | 96,792 | -2.1% | 8,164 | 11.86 |
| 2025-10-31 | 98,867 | +167.9% | 27,464 | 3.60 |
| 2025-10-15 | 36,897 | -6.5% | 49,807 | 1.00 |
| 2025-09-30 | 39,462 | -19.2% | 32,094 | 1.23 |
| 2025-09-15 | 48,842 | -5.4% | 120,353 | 1.00 |
| 2025-08-29 | 51,644 | -6.4% | 136,959 | 1.00 |
| 2025-08-15 | 55,191 | -4.4% | 20,532 | 2.69 |
| 2025-07-31 | 57,730 | -3.0% | 23,958 | 2.41 |
| 2025-07-15 | 59,503 | -14.5% | 15,289 | 3.89 |
| 2025-06-30 | 69,580 | +7.9% | 27,573 | 2.52 |
| 2025-06-13 | 64,494 | +733.7% | 100,178 | 1.00 |
| 2025-05-30 | 7,736 | +475.6% | 260,473 | 1.00 |
| 2025-05-15 | 1,344 | +2.2% | 30,772 | 1.00 |
| 2025-04-30 | 1,315 | -80.5% | 107,091 | 1.00 |
| 2025-04-15 | 6,739 | +78.2% | 32,483 | 1.00 |
| 2025-03-31 | 3,782 | +24.1% | 71,634 | 1.00 |
| 2025-03-14 | 3,048 | +40.3% | 59,012 | 1.00 |
| 2025-02-28 | 2,173 | +34.5% | 249,669 | 1.00 |
| 2025-02-14 | 1,616 | -80.2% | 40,269 | 1.00 |
| 2025-01-31 | 8,141 | +32464.0% | 39,968 | 1.00 |
| 2025-01-15 | 25 | -99.9% | 154,483 | 1.00 |
| 2024-12-31 | 18,450 | +100.0% | 80,714 | 1.00 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 23 October 2026, the short share of OACC volume is 99.9%, up 70.9 points over the last five sessions. Over the last 30 readings it ranged from 0.0% (9 September 2026) to 99.9% (23 October 2026). The latest reading sits at the top of that range. The latest reading is 72.9 points above the 30-session average of 26.9%, on 774 shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-23 | 773 | 774 | 99.9% | 0 |
| 2026-10-21 | 4K | 8K | 43.3% | 0 |
| 2026-10-20 | 2K | 4K | 54.3% | 0 |
| 2026-10-19 | 721 | 10K | 7.5% | 0 |
| 2026-10-16 | 6K | 17K | 34.7% | 0 |
| 2026-10-15 | 1K | 3K | 29.0% | 0 |
| 2026-10-14 | 600 | 700 | 85.7% | 0 |
| 2026-10-12 | 11K | 53K | 20.9% | 0 |
| 2026-10-09 | 2K | 144K | 1.5% | 0 |
| 2026-10-08 | 803 | 51K | 1.6% | 0 |
| 2026-10-07 | 3 | 6 | 50.0% | 0 |
| 2026-10-06 | 4 | 7 | 57.1% | 0 |
| 2026-10-05 | 45K | 67K | 66.6% | 0 |
| 2026-10-02 | 6 | 195K | 0.0% | 0 |
| 2026-10-01 | 0 | 3 | 0.0% | 0 |
| 2026-09-30 | 2 | 109 | 1.8% | 0 |
| 2026-09-29 | 1 | 3 | 33.3% | 0 |
| 2026-09-25 | 882 | 2K | 46.7% | 0 |
| 2026-09-24 | 177 | 418 | 42.3% | 0 |
| 2026-09-23 | 703 | 3K | 21.9% | 0 |
| 2026-09-09 | 0 | 2K | 0.0% | 0 |
| 2026-09-04 | 700 | 139K | 0.5% | 0 |
| 2026-09-02 | 6K | 7K | 82.1% | 0 |
| 2026-09-01 | 2K | 57K | 3.4% | 0 |
| 2026-08-31 | 2K | 29K | 6.6% | 0 |
| 2026-08-28 | 400 | 18K | 2.2% | 0 |
| 2026-08-25 | 3 | 418 | 0.7% | 0 |
| 2026-08-24 | 1K | 66K | 2.0% | 0 |
| 2026-08-21 | 1 | 12 | 8.3% | 0 |
| 2026-08-20 | 1 | 26 | 3.9% | 0 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 27 July 2026, the fails-to-deliver balance in OACC is 2 shares, down 98 shares over the last settlement date. Over the last 30 readings it ranged from 1 share (8 August 2025) to 9,222 shares (5 June 2025). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-07-27 | 2 | $10.75 | $22 |
| 2026-03-13 | 100 | $10.70 | $1K |
| 2026-02-10 | 4 | $10.67 | $43 |
| 2026-02-06 | 1 | $10.63 | $11 |
| 2025-12-30 | 1,509 | $10.58 | $16K |
| 2025-12-12 | 1,997 | $10.58 | $21K |
| 2025-12-08 | 244 | $10.57 | $3K |
| 2025-12-01 | 4 | $10.56 | $42 |
| 2025-11-12 | 15 | $10.60 | $159 |
| 2025-11-10 | 115 | $10.60 | $1K |
| 2025-10-28 | 15 | $10.64 | $160 |
| 2025-09-22 | 1 | $10.49 | $10 |
| 2025-08-08 | 1 | $10.40 | $10 |
| 2025-06-30 | 3,400 | $10.50 | $36K |
| 2025-06-27 | 3,700 | $10.50 | $39K |
| 2025-06-05 | 9,222 | $10.50 | $97K |
| 2025-06-04 | 5 | $10.45 | $52 |
| 2025-06-03 | 5 | $10.48 | $52 |
| 2025-05-27 | 26 | $10.41 | $271 |
| 2025-05-07 | 100 | $10.45 | $1K |
| 2025-05-06 | 100 | $10.35 | $1K |
| 2025-05-02 | 80 | $10.38 | $830 |
| 2025-05-01 | 80 | $10.39 | $831 |
| 2025-04-25 | 2 | $10.21 | $20 |
| 2025-03-11 | 3,479 | $10.10 | $35K |
| 2025-03-10 | 20 | $10.10 | $202 |
| 2025-03-07 | 1,558 | $10.06 | $16K |
| 2025-03-06 | 3,958 | $10.08 | $40K |
| 2025-03-05 | 6,844 | $10.06 | $69K |
| 2025-02-10 | 764 | $9.99 | $8K |
Insider trades
SEC Form 4, newest first. JSONNo open-market insider trades were reported for OACC in the last 90 days. The most recent filings are listed below. Latest filing: Oaktree Acquisition Holdings III LS, LLC (10% owner) on 2026-10-23.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-10-23 | Oaktree Acquisition Holdings III LS, LLC | 10% owner | Conversion | 4.8M | price not stated in the filing | not stated | 5.4M |
| 2024-10-30 | Oaktree Acquisition Holdings III LS, LLC | TenPercentOwner | Conversion | 34K | $10.00 | $340K | 584K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON8 holders report 5% or more of OACC in their latest filing, all on Schedule 13G (passive). The largest reported stake is Barclays PLC at 7.0% of the class (1,384,810 shares), filed 2026-08-13 for an event on 2026-06-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-08-14 | 13G | Decagon Asset Management LLPinvestment adviser, partnership | 1.1M | 5.5% | 2026-06-30 |
| 2026-08-14 | 13G | Benjamin John Durhamparent holding company, individual | 1.1M | 5.5% | 2026-06-30 |
| 2026-08-13 | 13G | Barclays PLCparent holding company | 1.4M | 7.0% | 2026-06-30 |
| 2026-05-15 | 13G | Fort Baker Capital Management LPinvestment adviser | 1.0M | 5.1% | 2026-03-31 |
| 2026-05-15 | 13G | Steven Patrick Pigottindividual | 1.0M | 5.1% | 2026-03-31 |
| 2026-05-15 | 13G | Fort Baker Capital, LLCparent holding company | 1.0M | 5.1% | 2026-03-31 |
| 2026-05-11 | 13G | THE GOLDMAN SACHS GROUP, INC.parent holding company, corporation | 1.2M | 6.2% | 2026-03-31 |
| 2026-05-11 | 13G | GOLDMAN SACHS & CO. LLCbroker-dealer, other entity, investment adviser | 1.2M | 6.2% | 2026-03-31 |
13F holders
Tracked managers holding OACC at their latest 13F. JSON3 of the 30 tracked managers held OACC at their latest 13F, $15.8M in total at quarter-end prices. D. E. Shaw & Co. is the largest at $9.2M (0.0% of its portfolio) as of 2026-06-30.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| D. E. Shaw & Co. | 2026-06-30 | 862K | $9.2M | 0.00% | 0 |
| Two Sigma Investments | 2026-06-30 | 438K | $4.7M | 0.00% | 0 |
| Millennium Management | 2026-06-30 | 175K | $1.9M | 0.00% | 0 |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
What this page is
Oaktree Acquisition Corp. III Life Sciences in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Oaktree Acquisition Corp. III Life Sciences (OACC), SEC CIK 2029769, listed on Nasdaq. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-09-30.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-23.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-07-27.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-08-14.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-10-23.JSON and CSV
- Company record
- EDGAR filing index for CIK 2029769Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of OACC is sold short?
What is OACC's daily short volume?
Does OACC have fails to deliver?
Are OACC insiders buying or selling?
Who owns 5% or more of OACC?
Which tracked 13F managers own OACC?
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.