Paul Isaac
Arbiter Partners Capital Management
Paul Isaac OmniAb Inc stake
total: 298
Arbiter Partners Capital Management OABI trades
- Total transactions:
- 2
- New positions:
- 1
- Added:
- 1
- Held since:
- 2025 Q3
- Held for:
- 4 quarters
- Latest activity:
- 2025 Q4
According to 2026 Q2 report, Paul Isaac holds 192,585 OmniAb Inc (OABI) shares with a market value of roughly $473.76K accounting for 0.26% of the overall portfolio. To date, the estimated cost basis is nearly $1.64 for "buy" trades. Arbiter Partners Capital Management first purchased OABI in 2025 Q3, initially acquiring 160,529 shares. Since the initial investment in OmniAb Inc (OABI), Arbiter Partners Capital Management has made 1 more transaction.
When did Paul Isaac buy OmniAb Inc (OABI)?
Paul Isaac first invested in OmniAb Inc (OABI) in 2025 Q3 at the reported quarter-end price of $1.60 per share.
What's the cost basis of Arbiter Partners Capital Management's OABI stake?
The estimated cost basis for OmniAb Inc (OABI) stake is around $1.64 per share. This represents their average reported price* across all buy transactions
Estimated cost basis*
- Weighted AVG buy price:
- $1.64
Paul Isaac's historical trades in OmniAb Inc
2 results
| Period |
% of portfolio |
Shares held after* |
Reported price* |
Value* |
% (shares) of activity |
% change to portfolio |
|---|---|---|---|---|---|---|
|
2025 Q4
|
0.19%
|
192,585
|
$1.85
|
$356,282
|
+19.97% (+32,056)
|
+0.03%
|
|
2025 Q3
|
0.18%
|
160,529
|
$1.60
|
$256,846
|
new
|
+0.18%
|
* Shares, change to shares, sold shares, shares held after: split-adjusted.
* Reported price: this doesn't represent the actual buy or sell price. It is the split-adjusted price of the security as of the last day of the reported period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
If the security is completely sold out, we show the reported split-adjusted price prior to the actual period.
* Estimated cost basis: based on "Reported price*" (not earlier than 2013 Q2). Calculation starts from the latest "new buy" activity to the latest "close out" activity (if any).
* Value or Price: If the security is completely sold out, we show the reported value (or price) prior to the actual period.
* New buy or own: this means there is no earlier reporting (for us or in general). So we can't know if the actual purchase of the security happened at the reported period or earlier.