Skip to content
buyModerate

Timothy A Springer bought $2.3M of TECX

director, owner at Tectonic Therapeutic, Inc.. 141,923 shares at an average of $16.20, traded Apr 9, 2025, filed Apr 11, 2025.

Conviction score
53
Value
$2.3M
141,923 shares
Holdings after
1,503,358
+3% from before
From 52-week low
+15%
low $14.67, close $16.84
From 52-week high
-69%
high $54.84, as of Apr 9, 2025

Score components

  • Role
    Director
    +15
  • Trade size
    $2.3M at market
    +25
  • Relative to holdings
    Holdings up 3.3%
    0
  • Price context
    69% below the 52-week high
    +8
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    2 buys in 90 days
    +5
  • Track record
    Too few past buys to judge (2 with prices)
    0

What happened after comparable buys

Same side and tier, against the S&P 500, at 1, 3 and 6 months. Shown to Pro users; the whole table is on the backtest page.

This signal so far: 1m +22.3%, 3m +40.1%, 6m -0.9%.

Price around the trade, and since

From a quarter before the trade to today. The arrow is the trade, the circle the day the filing reached EDGAR, which is the first day anyone outside could act; the dotted line is the S&P 500 rebased to that day's close.

TECXOct 12, 2026 · close 22.35
Since filing Apr 11, 2025: +38.3%SPY +48.1% · excess -9.8%

Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value; the dashed line is the close on the filing day, the dotted line SPY rebased to it.Charts by TradingView Lightweight Charts™

Rows in this filing

Every transaction in Form 4 0001415889-25-010588, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Apr 9, 2025POpen-market purchase
Common Stock
+2,861$14.62$42k4,316,419Apr 11, 2025
Apr 9, 2025POpen-market purchase
Common Stock
+857$15.23$13k4,317,276Apr 11, 2025
Apr 10, 2025POpen-market purchase
Common Stock
+8,092$16.73$135k4,325,368Apr 11, 2025
Apr 11, 2025POpen-market purchase
Common Stock
+9,478$16.31$155k4,334,846Apr 11, 2025
Apr 9, 2025POpen-market purchase
Common Stockindirect: By LLC
+16,215$14.62$237k1,398,938Apr 11, 2025
Apr 9, 2025POpen-market purchase
Common Stockindirect: By LLC
+4,856$15.23$74k1,403,794Apr 11, 2025
Apr 10, 2025POpen-market purchase
Common Stockindirect: By LLC
+45,858$16.73$767k1,449,652Apr 11, 2025
Apr 11, 2025POpen-market purchase
Common Stockindirect: By LLC
+53,706$16.31$876k1,503,358Apr 11, 2025

Related signals

Other insiders at Tectonic Therapeutic, Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
0Weak
TECXsell10b5-1
Tectonic Therapeutic, Inc.
Peter McNamara
Chief Scientific Officer
$12k
536 shares
-1%
0Weak
TECXsell10b5-1
Tectonic Therapeutic, Inc.
Peter McNamara
Chief Scientific Officer
$1,570
43 shares
-0%
0Weak
TECXsell10b5-1
Tectonic Therapeutic, Inc.
Peter McNamara
Chief Scientific Officer
$1,505
43 shares
-0%
0Weak
TECXsell10b5-1
Tectonic Therapeutic, Inc.
Peter McNamara
Chief Scientific Officer
$6,020
172 shares
-0%
0Weak
TECXsell10b5-1
Tectonic Therapeutic, Inc.
Marcella K. Ruddy
Chief Medical Officer
$32k
1,065 shares
-2%
0Weak
TECXsell10b5-1
Tectonic Therapeutic, Inc.
Marcella K. Ruddy
Chief Medical Officer
$31k
1,000 shares
-1%
5Weak
TECXsell 210b5-1
Tectonic Therapeutic, Inc.
Peter McNamara
Chief Scientific Officer
$189k
6,262 shares
-10%
22Weak
TECXsell 210b5-1
Tectonic Therapeutic, Inc.
Marcella K. Ruddy
Chief Medical Officer
$300k
10,000 shares
-13%
12Weak
TECXsell 210b5-1
Tectonic Therapeutic, Inc.
Peter McNamara
Chief Scientific Officer
$78k
3,299 shares
-8%
48Moderate
TECXbuy 2
Tectonic Therapeutic, Inc.
Alise Reicin
Chief Executive Officer
$53k
2,500 shares
+2%

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.

Timothy A Springer bought $2.3M of TECX | InsiderTell