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Insider · CIK 0001373603

Braden Michael Leonard

owner

Files at ASTC (ASTROTECH Corp), OM (Outset Medical, Inc.), ADVM (Adverum Biotechnologies, Inc.), ANTX (AN2 Therapeutics, Inc.). First filing Feb 28, 2025, latest Oct 5, 2026.

Track record
Not enough history
Fewer than three past buys with six months of prices.
Median 6-month excess
-
after past buys, n = 0
Hit rate
-
past buys that beat the index over 6 months
Open-market trades
8 / 5
$4.7M bought, $9.3M sold

Where the trades landed

Last year at the 2 companies this insider has traded most, with each buy and sell on the bar it happened.

ANTX: AN2 Therapeutics, Inc.

ANTXOct 9, 2026 · close 4.40

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

OM: Outset Medical, Inc.

OMOct 9, 2026 · close 4.05

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™

Signals

This insider’s open-market buys and sells, scored.

ScoreCompanyValueHoldingsPrice contextFiled
41Moderate
OMbuy
Outset Medical, Inc.
$870k
244,909 shares
+10%+27% from low-76% from high
42Moderate
ADVMsell
Adverum Biotechnologies, Inc.
$2.2M
524,560 shares
-21%-
42Moderate
ADVMsell
Adverum Biotechnologies, Inc.
$2.4M
574,886 shares
-19%-
57Moderate
ASTCsell
ASTROTECH Corp
$1.6M
229,576 shares
-104%+24% from low-30% from high
24Weak
ANTXsell
AN2 Therapeutics, Inc.
$218k
200,000 shares
-6%+15% from low-31% from high
47Moderate
ANTXsell
AN2 Therapeutics, Inc.
$2.9M
2,532,000 shares
-44%+15% from low-31% from high
30Weak
ADVMbuy
Adverum Biotechnologies, Inc.
$189k
37,000 shares
+35%-
30Weak
ADVMbuy
Adverum Biotechnologies, Inc.
$189k
37,000 shares
+35%-
40Moderate
ADVMbuy
Adverum Biotechnologies, Inc.
$1.0M
350,000 shares
+13%-
23Weak
ADVMbuy
Adverum Biotechnologies, Inc.
$147k
34,775 shares
+1%-
30Weak
ADVMbuy
Adverum Biotechnologies, Inc.
$189k
37,000 shares
+35%-
31Weak
ADVMbuy
Adverum Biotechnologies, Inc.
$588k
117,941 shares
+5%-
35Weak
ADVMbuy
Adverum Biotechnologies, Inc.
$1.4M
336,756 shares
+15%-

Transactions

Every row this insider has filed, newest first.

DateCompanyTransactionSharesPriceValueHoldings afterFiled
Oct 1, 2026OM
Outset Medical, Inc.
POpen-market purchase
Common Stockindirect: Holdings of BML Investment Partners, L.P.
+228,334$3.53$806k2,748,0357 d ago
Oct 2, 2026OM
Outset Medical, Inc.
POpen-market purchase
Common Stockindirect: Holdings of BML Investment Partners, L.P.
+16,575$3.88$64k2,764,6107 d ago
Dec 4, 2025ADVM
Adverum Biotechnologies, Inc.
SOpen-market sale
Common Stockindirect: Holdings of BML Investment Partners, L.P.
-524,560$4.19$2.2M1,958,080Dec 5, 2025
Dec 1, 2025ADVM
Adverum Biotechnologies, Inc.
SOpen-market sale
Common Stockindirect: Holdings of BML Investment Partners, L.P
-300,000$4.20$1.3M2,757,526Dec 3, 2025
Dec 2, 2025ADVM
Adverum Biotechnologies, Inc.
SOpen-market sale
Common Stockindirect: Holdings of BML Investment Partners, L.P
-51,961$4.20$218k2,705,565Dec 3, 2025
Dec 3, 2025ADVM
Adverum Biotechnologies, Inc.
SOpen-market sale
Common Stockindirect: Holdings of BML Investment Partners, L.P
-222,925$4.17$930k2,428,640Dec 3, 2025
Oct 3, 2025ASTC
ASTROTECH Corp
SOpen-market sale
Common Stockindirect: Holdings of BML Investment Partners, L.P
-220,410$7.13$1.6M0Oct 7, 2025
Oct 3, 2025ASTC
ASTROTECH Corp
SOpen-market sale
Common Stock
-9,166$5.83$53k0Oct 7, 2025
May 28, 2025ANTX
AN2 Therapeutics, Inc.
SOpen-market sale
Common Stockindirect: Holding of BML Investment Partners, L.P.
-200,000$1.09$218k3,017,432Jun 16, 2025
May 28, 2025ANTX
AN2 Therapeutics, Inc.
SOpen-market sale
Common Stockindirect: Holding of BML Investment Partners, L.P.
-2,000,000$1.16$2.3M3,749,432May 30, 2025
May 28, 2025ANTX
AN2 Therapeutics, Inc.
SOpen-market sale
Common Stockindirect: Holding of BML Investment Partners, L.P.
-100,000$1.16$116k3,649,432May 30, 2025
May 30, 2025ANTX
AN2 Therapeutics, Inc.
SOpen-market sale
Common Stockindirect: Holding of BML Investment Partners, L.P.
-425,000$1.01$429k3,224,432May 30, 2025
May 30, 2025ANTX
AN2 Therapeutics, Inc.
SOpen-market sale
Common Stockindirect: Holding of BML Investment Partners, L.P.
-7,000$1.03$7,2273,217,432May 30, 2025
Mar 26, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
+20,407$5.04$103k125,207Apr 28, 2025
Mar 26, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
+20,407$5.04$103k125,207Apr 28, 2025
Mar 27, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
+16,593$5.19$86k141,800Apr 28, 2025
Mar 27, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
+16,593$5.19$86k141,800Apr 28, 2025
Apr 22, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holdings of BML Investment Partners, L.P.
+300,000$3.00$900k3,057,526Apr 24, 2025
Apr 23, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
+50,000$2.98$149k191,800Apr 24, 2025
Mar 31, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holdings of BML Investment Partners, L.P.
+19,566$4.38$86k2,742,317Apr 2, 2025
Apr 2, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holdings of BML Investment Partners, L.P
+15,209$4.04$61k2,757,526Apr 2, 2025
Mar 26, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
+20,407$5.04$103k125,207Mar 27, 2025
Mar 27, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stock
-16,593$5.19$86k141,800Mar 27, 2025
Mar 18, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holding of BML Investment Partners, L.P.
+18,000$4.60$83k2,622,820Mar 20, 2025
Mar 18, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holding of BML Investment Partners, L.P.
+44,341$4.73$210k2,667,161Mar 20, 2025
Mar 19, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holding of BML Investment Partners, L.P.
+25,000$4.94$123k2,692,161Mar 20, 2025
Mar 20, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stovkindirect: Holding of BML Investment Partners, L.P.
+30,600$5.61$172k2,722,761Mar 20, 2025
Feb 26, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holding of BML Investment Partners, L.P.
+164,886$4.01$661k2,432,950Feb 28, 2025
Feb 27, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holding of BML Investment Partners, L.P.
+86,802$4.46$387k2,519,752Feb 28, 2025
Feb 28, 2025ADVM
Adverum Biotechnologies, Inc.
POpen-market purchase
Common Stockindirect: Holding of BML Investment Partners, L.P.
+85,068$4.60$391k2,604,820Feb 28, 2025

Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.

Braden Michael Leonard: insider trades and track record | InsiderTell