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buyModerate

Baker Bros. Advisors LP bought $63M of KOD

director, owner at Kodiak Sciences Inc.. 715,592 shares at an average of $88.59, traded Sep 28, 2026, filed Sep 30, 2026.

Conviction score
46
Value
$63M
715,592 shares
Holdings after
20,191,214
+44% from before
From 52-week low
-
no price yet
From 52-week high
-
no price yet

Score components

  • Role
    Director
    +15
  • Trade size
    $63.4M at market
    +25
  • Relative to holdings
    Holdings up 44%
    +6
  • Price context
    No price history yet
    0
  • Cluster
    No other insider buying within 14 days
    0
  • Repeat buying
    First buy in 90 days
    0
  • Track record
    Too few past buys to judge (0 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.

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.

KODOct 9, 2026 · close 99.87
Since filing Sep 30, 2026: +5.3%SPY +2.0% · excess +3.3%

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 0001193125-26-409127, as filed. Open on EDGAR

DateTransactionSharesPriceValueHoldings afterFiled
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+186$86.72$16k1,629,62814 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+3,114$86.72$270k19,519,02114 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+957$86.81$83k1,630,58514 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+16,036$86.81$1.4M19,535,05714 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+3,790$86.94$330k1,634,37514 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+63,539$86.94$5.5M19,598,59614 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+4,485$87.51$392k1,638,86014 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+75,176$87.51$6.6M19,673,77214 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+5,880$88.57$521k1,644,74014 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+98,561$88.57$8.7M19,772,33314 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+6,428$88.65$570k1,651,16814 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+107,772$88.65$9.6M19,880,10514 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+4,932$89.60$442k1,656,10014 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+82,673$89.60$7.4M19,962,77814 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+11,729$89.86$1.1M1,667,82914 d ago
Sep 28, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+196,608$89.86$18M20,159,38614 d ago
Sep 29, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+619$84.24$52k1,668,44814 d ago
Sep 29, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+10,381$84.24$875k20,169,76714 d ago
Sep 29, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+1,195$85.40$102k1,669,64314 d ago
Sep 29, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+20,031$85.40$1.7M20,189,79814 d ago
Sep 29, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+84$85.89$7,2141,669,72714 d ago
Sep 29, 2026POpen-market purchase
Common Stockindirect: See Footnotes
+1,416$85.89$122k20,191,21414 d ago

Related signals

Other insiders at Kodiak Sciences Inc. and this insider’s other filings.

ScoreCompanyInsiderValueHoldingsFiled
50Moderate
KODbuy
Kodiak Sciences Inc.
Baker Bros. Advisors LP
director, owner
$59M
807,840 shares
+52%
46Moderate
KODbuy
Kodiak Sciences Inc.
Baker Bros. Advisors LP
director, owner
$35M
418,323 shares
+26%
17Weak
KODsell10b5-1
Kodiak Sciences Inc.
John A. Borgeson
Chief Financial Officer
$1.0M
30,000 shares
-12%
17Weak
KODsell10b5-1
Kodiak Sciences Inc.
John A. Borgeson
Chief Financial Officer
$1.2M
30,000 shares
-14%
50Moderate
KODbuy
Kodiak Sciences Inc.
Baker Bros. Advisors LP
director, owner
$60M
2,608,696 shares
+194%
0Weak
KODsell10b5-1
Kodiak Sciences Inc.
John A. Borgeson
See Remarks
$2,640
723 shares
-0%

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.