MarketPeel
Insider Trading Intelligence
MB

Martin Brenner

IBIO
SEE REMARKS · IBIO, INC. · CIK 0001770235
FILING MIX · LIFETIME50%/50%
BUYS
15
SELLS
15
TOTAL VALUE
$88.1K
COMPANIES
1
ACTIVE SINCE
Jan 2021
HOLDINGS NOW
30,652
AVG SELL PX
$0.83
TRADE KIND
SHOWING 30 / 30
Trades · vs SPY
Loading price series…
Performance · forward returns vs SPY
15 backtested trades · 8 horizons · 3 pending
Forward-return performance of every backtestable P/S trade by Martin Brenner, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d15+80.00%-9.47%+0.64%-10.12%-12.43%
14d15+66.67%-7.10%+1.54%-8.64%-8.50%
30d15+86.67%-19.74%+2.14%-21.88%-22.12%
60d15+93.33%-41.70%+4.13%-45.82%-44.79%
90d15+93.33%-52.84%+5.78%-58.62%-53.41%
180d15(1 pending)+100.00%-75.52%+12.36%-87.88%-93.59%
1y15(1 pending)+100.00%-79.65%+28.90%-108.55%-111.19%
2y15(1 pending)+100.00%-90.35%+47.66%-138.01%-136.86%
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
IBIO · 30,652 shares · as of Mar 19, 2026
0175,000350,000525,000700,00020222023202420252026SHARES HELD
Trading cadence · quarterly flow
BUY SELL
2021
2021
2021
2021
2022
2022
2022
2022
2023
2023
2023
2023
2024
2024
2024
2024
2025
2025
2025
2025
2026
FLOW · 15 buys / 15 sellsCOVERAGE · 21 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILEDDETAILS
IBIO
IBIO, INC.
PURCHASE
See Remarks
12,336$2.02$24.9K30,652Mar 19, 2026Mar 23, 2026View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
479,000479,000Jan 28, 2026Jan 30, 2026View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
180,000180,000Oct 20, 2025Oct 22, 2025View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
230,700230,700Feb 21, 2025Feb 24, 2025View →
IBIO
IBIO, INC.
PURCHASE
See Remarks
9,191$2.72$25.0K18,316Jan 10, 2025Jan 13, 2025View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
110,000110,000May 9, 2024May 13, 2024View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
147,300147,300May 9, 2024May 13, 2024View →
IBIO
IBIO, INC.
SALE
See Remarks
4,881$0.27$1.3K182,502Nov 1, 2023Nov 3, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
5,267$0.30$1.6K187,383Oct 3, 2023Oct 5, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
4,215$0.31$1.3K192,650Oct 2, 2023Oct 3, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
5,011$0.31$1.5K196,865Aug 28, 2023Aug 30, 2023View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
120,000120,000Aug 23, 2023Aug 24, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
4,480$0.51$2.3K201,911Jul 27, 2023Jul 28, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
35$0.51$18201,876Jul 27, 2023Jul 28, 2023View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
75,833253,411Jun 26, 2023Jun 27, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
75,833177,578Jun 22, 2023Jun 27, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
100$0.68$68253,411Jun 21, 2023Jun 22, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
3,859$0.68$2.6K253,736Jun 21, 2023Jun 22, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
225$0.69$155253,511Jun 21, 2023Jun 22, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
24$0.95$23257,595May 22, 2023May 23, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
4,158$0.94$3.9K257,619May 22, 2023May 23, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
4,382$1.20$5.3K261,777Apr 24, 2023Apr 24, 2023View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
50,000266,159Mar 31, 2023Apr 3, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
5,213$2.13$11.1K216,159Mar 23, 2023Mar 28, 2023View →
IBIO
IBIO, INC.
SALE
See Remarks
3,976$1.77$7.0K221,372Feb 21, 2023Feb 23, 2023View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
130,000225,348Jan 20, 2023Jan 24, 2023View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
95,34895,348Nov 11, 2022Nov 15, 2022View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
700,000700,000Aug 29, 2022Aug 30, 2022View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
700,000700,000Aug 23, 2021Aug 25, 2021View →
IBIO
IBIO, INC.
PURCHASEGRANT
Stock grant
500,000500,000Jan 18, 2021Jan 19, 2021View →
Other insiders · IBIO
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About this filer
CIK 0001770235
ROLE
See Remarks
PRIMARY
IBIO
COMPANIES
1
ACTIVE SINCE
Jan 2021
MARKETPEEL · /INSIDER/0001770235DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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