KYTX
+$0
5,093 sh
SEIDENBERG BETH C
Director, 10% Owner · SEC CIK 1184592Advertisement
Buy track record
How this insider's open-market purchases have performed95%
of buys now in profit
20 up · 1 down
Avg return since buy+331.4%
Median return+369.3%
Best trade+391.5%
Worst trade−59.5%
Buys scored21 (+2 n/a)
Average return by holding period — separates good entry timing from riding one long winner
After 1 month
−1.8%
43% won · 21 trades
After 3 months
+46.9%
90% won · 21 trades
After 6 months
+123.9%
95% won · 20 trades
After 12 months
+455.4%
95% won · 20 trades
| Date | Company | 90d trend | Buy price | Value | ΔOwn | 1M | 3M | 6M | 12M | To date |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 18, 2025 | KYTX | $8 | $1,000K | +18% | +28.9% | +22.0% | — | — | +15.1% | |
| Jul 18, 2023 | SGMT | $16 | $750K | NEW | −20.6% | −65.5% | −59.6% | −79.9% | −59.5% | |
| Mar 30, 2023 | VERA | $7 | $16.7K | +0.1% | −6.6% | +115.7% | +74.1% | +469.2% | +360.5% | |
| Mar 28, 2023 | VERA | $7 | $173.2K | +1.2% | −8.4% | +145.6% | +91.2% | +493.9% | +371.9% | |
| Mar 27, 2023 | VERA | $7 | $11.8K | +0.1% | −14.2% | +140.3% | +106.2% | +500.4% | +369.3% | |
| Mar 24, 2023 | VERA | $7 | $13.3K | +0.1% | −14.8% | +132.8% | +89.3% | +448.3% | +356.2% | |
| Mar 20, 2023 | VERA | $7 | $110K | +0.8% | −16.3% | +101.2% | +119.1% | +506.0% | +358.0% | |
| Mar 17, 2023 | VERA | $7 | $526.9K | +4.0% | −10.5% | +111.1% | +134.1% | +481.6% | +380.5% | |
| Mar 16, 2023 | VERA | $7 | $426.3K | +3.4% | −12.1% | +77.3% | +129.9% | +471.2% | +371.9% | |
| Mar 15, 2023 | VERA | $7 | $234K | +1.9% | −10.5% | +78.4% | +139.7% | +506.6% | +380.5% | |
| Mar 10, 2023 | VERA | $7 | $343.5K | +2.8% | −15.2% | +22.1% | +157.8% | +485.9% | +364.9% | |
| Mar 3, 2023 | VERA | $7 | $7.2K | +0.1% | +0.4% | +19.5% | +146.9% | +518.1% | +355.0% | |
| Mar 2, 2023 | VERA | $7 | $169.3K | +1.4% | +4.4% | +28.6% | +156.8% | +542.8% | +373.2% | |
| Mar 1, 2023 | VERA | $7 | $725 | — | +2.2% | +20.9% | +150.5% | +564.1% | +363.0% | |
| Feb 23, 2023 | VERA | $7 | $1.4K | — | −1.3% | +6.5% | +133.8% | +526.8% | +352.6% | |
| Feb 13, 2023 | VERA | $7 | $72.5K | +0.6% | −1.9% | +6.3% | +137.3% | +475.6% | +356.8% | |
| Feb 9, 2023 | VERA | $7 | $2.9K | — | +6.0% | +4.9% | +154.0% | +493.5% | +370.6% | |
| Feb 8, 2023 | VERA | $7 | $327.5K | +2.8% | +11.7% | +4.4% | +154.3% | +418.8% | +373.2% | |
| Feb 7, 2023 | VERA | $7 | $622.7K | +5.8% | +16.3% | +6.2% | +152.8% | +426.8% | +381.2% | |
| Feb 6, 2023 | VERA | $7 | $925.2K | +9.5% | +19.9% | +8.5% | +158.2% | +445.9% | +391.5% | |
| Feb 3, 2023 | VERA | $7 | $334.2K | +3.4% | +4.1% | −2.2% | +151.7% | +411.9% | +373.9% |
How this is calculated. We score only open-market purchases (SEC code
P) — the buys that carry real signal. Each trade's return is measured from the adjusted closing price on the purchase date to the latest close, accounting for stock splits and dividends. The 1M/3M/6M/12M columns show the same trade's return after each fixed holding period; a dash means that horizon hasn't elapsed yet or isn't priceable. Sales are excluded because insiders sell for many routine reasons. With only 21 scored trades, treat this as a small sample, not a verdict.
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Open-market buys
$29.65M
23 trades
Open-market sells
$1.42M
5 trades
Net flow
+$28.23M
Net buying
Total filings
46
transactions shown
Full transaction history
All Form 4 activity across every company, newest firstKYTX
Seidenberg Beth C, KYTX's Director, spent $1,000K of their own money on 133,333 shares at $8, growing their stake 18%.
+$1,000K
133,333 sh @ $8
KYTX
+$0
16,634 sh
SLRN
−$0
9.79M sh
VERA
−$710.5K
14,798 sh @ $48
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VERA
−$10K
202 sh @ $50
VERA
−$584.8K
13,823 sh @ $42
VERA
−$49.4K
1,177 sh @ $42
VERA
−$62K
1,476 sh @ $42
PGNY
+$0
7,206 sh
KYTX
+$0
735,984 sh
SGMT
+$0
84,768 sh
SGMT
Seidenberg Beth C, SGMT's Director, spent $750K of their own money on 46,875 shares at $16, opening a brand-new position.
+$750K
46,875 sh @ $16
PGNY
+$0
10,284 sh
PGNY
+$0
6,656 sh
ATRA
+$0
57,000 sh
PGNY
+$0
5,116 sh
SLRN
+$0
8.54M sh
SLRN
Seidenberg Beth C, SLRN's 10% owner, spent $22.5M of their own money on 1.25M shares at $18, growing their stake 15%.
+$22.5M
1.25M sh @ $18
SLRN
Seidenberg Beth C, SLRN's 10% owner, spent $1.08M of their own money on 60,000 shares at $18, opening a brand-new position.
+$1.08M
60,000 sh @ $18
VERA
Seidenberg Beth C, VERA's Director, spent $16.7K of their own money on 2,300 shares at $7.
+$16.7K
2,300 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $173.2K of their own money on 23,908 shares at $7, growing their stake 1%.
+$173.2K
23,908 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $11.8K of their own money on 1,633 shares at $7.
+$11.8K
1,633 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $13.3K of their own money on 1,833 shares at $7.
+$13.3K
1,833 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $110K of their own money on 15,252 shares at $7, growing their stake 1%.
+$110K
15,252 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $526.9K of their own money on 74,045 shares at $7, growing their stake 4%.
+$526.9K
74,045 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $426.3K of their own money on 60,097 shares at $7, growing their stake 3%.
+$426.3K
60,097 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $234K of their own money on 32,844 shares at $7, growing their stake 2%.
+$234K
32,844 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $343.5K of their own money on 48,003 shares at $7, growing their stake 3%.
+$343.5K
48,003 sh @ $7
VERA
Seidenberg Beth C, VERA's Director, spent $7.2K of their own money on 1,000 shares at $7.
+$7.2K
1,000 sh @ $7
Frequently asked questions
How is SEIDENBERG BETH C's win rate calculated?
We take every open-market purchase (SEC code P) we can match to a stock price, then compare the split- and dividend-adjusted price on the purchase date to the most recent close. The win rate is the share of those buys currently trading above the purchase price. Sales and share grants are not scored.
Why are some buys not included in the score?
A purchase is excluded if we can't price it — for example if the ticker is missing from the filing, the company has been delisted, or the security isn't a common stock we can match to market data. Excluded counts are shown next to the scored total.
What do the 1M / 3M / 6M / 12M columns mean?
They show each purchase's return after a fixed holding period — one, three, six, and twelve months from the buy date — using split- and dividend-adjusted prices. This separates good entry timing from simply holding a long-running winner. A dash means that horizon hasn't elapsed yet for that trade, or the stock couldn't be priced at that date.
Does a high win rate mean I should copy this insider?
No. Past performance does not predict future results, sample sizes are often small, and an insider's edge in their own company doesn't transfer to yours. This is context, not a recommendation. InsiderSource is not investment advice.
Where does this data come from?
Trades come from SEIDENBERG BETH C's SEC Form 4 filings on EDGAR. Prices come from public market data and are split/dividend-adjusted. Always verify against the original filings before acting.